OBOS (not vibecoded) | Operating System Development | Page 42

dense vigil Jan 29, 2026, 11:52 PM

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later

flint idol Jan 29, 2026, 11:53 PM

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no such thing, i told myself that once upon a time and i rewrote because of it

dense vigil Jan 29, 2026, 11:53 PM

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nahhh

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trl

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that will just be small refactor 4

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after small refactor 3 for smp

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which is after bash

flint idol Jan 30, 2026, 12:14 AM

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i think im gonna do x2apic support

dense vigil Jan 30, 2026, 12:26 AM

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flint idol i think im gonna do x2apic support

Don’t do it like me and make two separate drivers for it

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trol

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I mean I did it because I chose to

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I very well could of done it differently but I wanted to make it branchlesser

flint idol Jan 30, 2026, 1:09 AM

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for some stupid fucking reason

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nproc doesn't work with x2apic enabled

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what

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nproc doesn't work anymore

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how sad

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anyway

flint idol Jan 30, 2026, 1:42 AM

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obos type download speeds on my host 🥀

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obos now gets slightly farther on real hw

dense vigil Jan 30, 2026, 1:52 AM

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flint idol obos type download speeds on my host 🥀

Faster than 130 bytes per second trl

flint idol Jan 30, 2026, 1:52 AM

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dense vigil Faster than 130 bytes per second <:trl:829316641191886888>

no obos gets download speeds from 50k-300k now

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I think my pc's cpu hates me

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lack of support for new cpus is one reason why I want to rewrite the x86 backend

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wish me luck

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@dense vigil

dense vigil Jan 30, 2026, 2:01 AM

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flint idol <@618537432002068491>

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Good luck

flint idol Jan 30, 2026, 2:24 AM

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    dev->base = map_registers(dev->pci_bar->bar->phys, dev->pci_bar->bar->size, false);

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P,GFSDLP;KLSD,;L'

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SKDJFOLP;DSKF;LSWED\

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OMG

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i map the bar cacheable

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fsdk;lfsdmn;fswd

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im gonna sprinkle in some mfence and wbinvd instructions

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this was all to no avail

dense vigil Jan 30, 2026, 2:58 AM

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flint idol i map the bar cacheable

Mark it not cacheable instead of using thoes?

flint idol Jan 30, 2026, 1:15 PM

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dense vigil Mark it not cacheable instead of using thoes?

wha...?

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yeah I marked in noncacheable

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did nothing

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im gonna do the same to the TRB rings

dense vigil Jan 30, 2026, 1:16 PM

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Lmao

weary hound Jan 30, 2026, 1:16 PM

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on x86 mmio is made UC via MTRRs

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and dma should be cache coherent

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maybe the compiler is reordering trb writes with the doorbell ring?

flint idol Jan 30, 2026, 1:17 PM

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weary hound maybe the compiler is reordering trb writes with the doorbell ring?

I did add a asm volatile("mfence;wbinvd" :::"memory") before writing the doorbell and that didnt seem to change anything

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that should theoretically be a memory barrier and also it should at least flush the cache if dumb shit happened somehow

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of course i could also check to see if the writes during initialization are in order

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at least get that out of the way

weary hound Jan 30, 2026, 1:20 PM

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what problem are you experiencing in the first place

flint idol Jan 30, 2026, 1:21 PM

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weary hound what problem are you experiencing in the first place

the controller isnt seeing any of the command ring enqueues/doorbell references

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it works on qemu w/ xhci pass through, but not on that same hw

weary hound Jan 30, 2026, 1:30 PM

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is memory decode and busmastering enabled in the pci config register

flint idol Jan 30, 2026, 2:18 PM

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I enabled bus master and irq

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but not memory decode

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uh nvm I enabled memory decode

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 dev->dev->resource_cmd_register->cmd_register |= 0x6; Drv_PCISetResource(dev->dev->resource_cmd_register);```

lean glen Jan 30, 2026, 2:53 PM

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I still don't like that naming scheme 💀

flint idol Jan 30, 2026, 3:08 PM

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lean glen I still don't like that naming scheme 💀

neither do I but im stuck with it now

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but also

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real pecan Jan 30, 2026, 4:33 PM

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Patches are cheap, send talks

flint idol Jan 30, 2026, 4:52 PM

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real pecan Patches are cheap, send talks

cheap is talk, send are

flint idol Jan 30, 2026, 4:55 PM

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real pecan Patches are cheap, send talks

infy what do you think about these download speeds
https://cdn.discordapp.com/attachments/1417088322949480478/1465467880056422461/image.png?ex=697dd411&is=697c8291&hm=a80fe2915848d2cd6c90d4abfdb35a500aac7a60452f5578fd2c614bad34fa2d&

real pecan Jan 30, 2026, 4:55 PM

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Not bad

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Just speed it up by a million to get zero

flint idol Jan 30, 2026, 4:56 PM

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lol

devout niche Jan 30, 2026, 5:01 PM

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am i right in thinking your packet send from tcp context is synchronous?

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i had a brief click through the incoming packet handling code

flint idol Jan 30, 2026, 5:01 PM

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devout niche am i right in thinking your packet send from tcp context is synchronous?

I haven't pushed the new code

devout niche Jan 30, 2026, 5:02 PM

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and it seemed that sending ack for instance will ultimately wait synchronously in NetH_SendEthernetPacket

flint idol Jan 30, 2026, 5:02 PM

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oh thx for pointing that out actually

flint idol Jan 30, 2026, 5:02 PM

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devout niche and it seemed that sending ack for instance will ultimately wait synchronously i...

if iirc, its waiting for the irp to finish, right?

devout niche Jan 30, 2026, 5:03 PM

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flint idol if iirc, its waiting for the irp to finish, right?

yes, in

    VfsH_IRPSubmit(req, &nic->net_tables->desc);
    VfsH_IRPWait(req);

flint idol Jan 30, 2026, 5:03 PM

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oh how interesting

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I am not sure if writes to the NIC ever actually block

devout niche Jan 30, 2026, 5:05 PM

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i do this entirely asynchronously (in fact right now i don't even do tx packet queueing at all) and it doesn't even matter if the packet doesn't get sent since the retransmit timer will handle it

flint idol Jan 30, 2026, 5:05 PM

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I gtg now

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at mosque

flint idol Jan 30, 2026, 5:51 PM

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devout niche i do this entirely asynchronously (in fact right now i don't even do tx packet q...

fadanoid do you think it is a good idea to only send an ACK after having processed all available packets

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cuz rn it sends a bunch of ACKs for small amounts of data and im not sure if thats a bad thing

devout niche Jan 30, 2026, 6:44 PM

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flint idol fadanoid do you think it is a good idea to only send an ACK after having process...

generally reasonable

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if you do delayed acks eventually then that would call for something similar

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but still probably reasonable to try to ack after every 2 full segments

flint idol Jan 30, 2026, 7:10 PM

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delayed ACKs improved consistency in download speeds

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before speeds would fluncate a lot

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now they are consistent

dense vigil Jan 30, 2026, 7:24 PM

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Btw @flint idol the intel simics logs whenever USB has a spec violation

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And for other violations too

flint idol Jan 30, 2026, 7:24 PM

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shiii

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(download link?)

dense vigil Jan 30, 2026, 7:25 PM

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Under personal NDA til I finish using it to implement feature

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Because I wana be first

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Il tell you though later

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And it’s free

flint idol Jan 30, 2026, 7:25 PM

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just found it

dense vigil Jan 30, 2026, 7:25 PM

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Just try and use it

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trl

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Ask @snow current How hard it was

snow current Jan 30, 2026, 7:32 PM

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dense vigil Ask <@798918348360515614> How hard it was

don't even bother

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it's fucking terrible

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I rage quit tryna get it to work lmao 😭

flint idol Jan 30, 2026, 7:36 PM

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flint idol delayed ACKs improved consistency in download speeds

and i also think that curl is giving me completely wrong download speeds

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cuz if i downloaded 5933k of data in 28 seconds, then that should mean my download speed has an average of 212k/s

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but curl says 52k

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for avg download

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it's probably because i dont implement any socket options

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no it's because my timer source for userspace is bad

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coolmeme

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207G download speed, everyone switch to obos

dense vigil Jan 30, 2026, 7:55 PM

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flint idol 207G download speed, everyone switch to obos

Not try it over real network

flint idol Jan 30, 2026, 7:56 PM

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whats a real network never heard of it trl

dense vigil Jan 30, 2026, 7:56 PM

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https://files.evalyngoemer.com/

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This

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tro

flint idol Jan 30, 2026, 7:57 PM

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dense vigil https://files.evalyngoemer.com/

dense vigil Jan 30, 2026, 7:59 PM

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Amazing download speed

flint idol Jan 30, 2026, 8:11 PM

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dense vigil Just try and use it

im getting the gist of it, not really that hard

flint idol Jan 30, 2026, 9:19 PM

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so obos boots on simics

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how nice

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however, it's quite sluggish

dense vigil Jan 30, 2026, 9:19 PM

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yeah its simics

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and you need a special VM backend

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thats not KVM for it

flint idol Jan 30, 2026, 9:20 PM

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yeah i installed vmxcon

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but i dont seem to see any effect

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oh wait its not laoded

snow current Jan 30, 2026, 9:23 PM

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I didn't bother

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it's not slow enough for me to care

flint idol Jan 30, 2026, 9:24 PM

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damn

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and for some reason simics doesn't like my dhcp requests

flint idol Jan 31, 2026, 12:33 AM

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im absorbing rfc9293 rn

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and apparently my sequence numbers are not to spec

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I just use an rng

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but apparently it should use a monotonic timer combined with some sort of cryptographic hash that is computed with these parameters:

ISN = M + F(localip, localport, remoteip, remoteport, secretkey)```

flint idol Jan 31, 2026, 12:36 AM

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flint idol but apparently it should use a monotonic timer combined with some sort of crypto...

well it only requires the monotonic timer

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these diagrams are making me laugh idk why I might be going slightly insane

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when i think of a RST in TCP I always think of it like one tcp peer telling its peer to go kill itself

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KEKW

flint idol Jan 31, 2026, 12:48 AM

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flint idol when i think of a RST in TCP I always think of it like one tcp peer telling its ...

yooooo I got some data for you
<who tf are you??? RST, go kys

flint idol Jan 31, 2026, 1:16 AM

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also TODO: congestion control for TCP

flint idol Jan 31, 2026, 3:03 AM

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CHAT

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i got my final marks back for hte semester

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93 math 😔
95 music
85 "geography"
90 english

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anyway

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i think i know how im gonna celebrate this trl

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[REDACTED]

snow current Jan 31, 2026, 3:32 AM

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flint idol [REDACTED]

oh and maybe a bit of || ||

dense vigil Jan 31, 2026, 9:21 AM

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snow current it's not *slow* enough for me to care

If you don’t need FRED it has some faster albeit older CPUs you can emulate

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But it’s a completely different command

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PSP1G_pspTrollar

flint idol Jan 31, 2026, 7:10 PM

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guys

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i was diagnosed with silly window syndrome 😔 (elite ball knowledge required)

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||The "Silly Window Syndrome" (SWS) is a stable pattern of small incremental window movements resulting in extremely poor TCP performance. Algorithms to avoid SWS are described below for both the sending side and the receiving side. RFC 1122 contains more detailed discussion of the SWS problem. Note that the Nagle algorithm and the sender SWS avoidance algorithm play complementary roles in improving performance. The Nagle algorithm discourages sending tiny segments when the data to be sent increases in small increments, while the SWS avoidance algorithm discourages small segments resulting from the right window edge advancing in small increments.||

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A TCP implementation MUST include a SWS avoidance algorithm in the sender (MUST-38).
blah blah blah ill do whatever i want rfc9293

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yeah i cant lie my tcp transmission code is deeply fucked

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i bet RFC writers tell scary stories about my tcp implementation around a campfire at night

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"congestion? whats a congestion, never heard of 'em?"

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to debug my loopback device on obos

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i am going to do smth insane

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im gonna use wireshark's ability to use stdin for captures

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then im gonna make obos

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write a PCAP file as it sends packets on the LO device

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of course where will it write this pcap file?

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it will write it onto serial

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and serial will be routed to wireshark

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through the stdin thing it has

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⁨⁨```c
static bool lo_sent_file_header = false;
if (!lo_sent_file_header)
{
struct {
uint32_t magic_number;
uint16_t minor;
uint16_t major;
uint32_t resv[2];
uint32_t snap_len;
uint16_t link_type;
uint16_t flags;
} OBOS_PACK hdr = {
.magic_number = 0xA1B2C3D4,
.major = 2,
.minor = 4,
.snap_len = 0x40000,
.link_type = 1,
.flags = 0x5000
};
write_to_serial(&hdr, sizeof(hdr));
lo_sent_file_header = true;
}

    struct {
        uint32_t tstamp_sec;
        uint32_t tstamp_usec;
        uint32_t captured_packet_length;
        uint32_t network_packet_length;
        char data[];
    } *record = ZeroAllocate(OBOS_KernelAllocator, 1, sizeof(*record) + pckt->size, nullptr);
    record->network_packet_length = pckt->size;
    record->captured_packet_length = record->network_packet_length;
    record->tstamp_sec = get_current_time();
    record->tstamp_usec = record->tstamp_sec * 1000000;
    memcpy(record->data, pckt->buffer, pckt->size);
    
    write_to_serial(record, sizeof(*record)+pckt->size);

    Free(OBOS_KernelAllocator, record, sizeof(*record)+pckt->size);```⁩⁩

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trl

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nice it worked

flint idol Jan 31, 2026, 8:05 PM

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flint idol nice it worked

and by that i mean

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the pcap thing works

uncut narwhal Jan 31, 2026, 8:05 PM

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flint idol nice it worked

ok this actually kinda slaps as a setup tbh, ill have to keep the idea in mind for when i do networking

flint idol Jan 31, 2026, 8:05 PM

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flint idol the pcap thing works

obos doesn't ack the last packet it sent to itself

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⁨⁨```c
// Released into the public domain

    static bool lo_sent_file_header = false;
    if (!lo_sent_file_header)
    {
        struct {
            uint32_t magic_number;
            uint16_t minor;
            uint16_t major;
            uint32_t resv[2];
            uint32_t snap_len;
            uint16_t link_type;
            uint16_t flags;
        } __attribute__((packed)) hdr = {
            .magic_number = 0xA1B2C3D4,
            .major = 2,
            .minor = 4,
            .snap_len = 0x40000,
            .link_type = 1,
            .flags = 0x5000
        };
        write_to_serial(&hdr, sizeof(hdr));
        lo_sent_file_header = true;
    }

    struct {
        uint32_t tstamp_sec;
        uint32_t tstamp_usec;
        uint32_t captured_packet_length;
        uint32_t network_packet_length;
        char data[];
    } record = {};
    record.network_packet_length = pckt->size;
    record.captured_packet_length = record.network_packet_length;
    record.tstamp_sec = get_current_time();
    record.tstamp_usec = record.tstamp_sec * 1000000;
    
    write_to_serial(&record, sizeof(record));
    write_to_serial(pckt->buffer, pckt->size);```⁩⁩

flint idol Jan 31, 2026, 8:06 PM

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uncut narwhal ok this actually kinda slaps as a setup tbh, ill have to keep the idea in mind f...

feel free to copy the code i sent above

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if you ever need to debug ur network stack on ur loopback device

uncut narwhal Jan 31, 2026, 8:18 PM

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thanks

flint idol Jan 31, 2026, 8:25 PM

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https://gist.github.com/oberrow/3bf7a2c2efca844394e99ab5c6524a5e

Gist

pcap.c

GitHub Gist: instantly share code, notes, and snippets.

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https://tenor.com/view/he-was-forced-to-play-blox-fruits-gif-26006185

Tenor

flint idol Jan 31, 2026, 8:28 PM

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flint idol https://tenor.com/view/he-was-forced-to-play-blox-fruits-gif-26006185

he was forced to debug optimized C code

flint idol Jan 31, 2026, 8:44 PM

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(it works only once)

flint idol Jan 31, 2026, 9:25 PM

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oh fun fact ig

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obos' loopback device

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is slower than receiving the data from a remote server

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ig that's just my tcp implementation, maybe

flint idol Jan 31, 2026, 10:14 PM

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http://obos-dev.ddns.net:8080/

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@dense vigil

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i am hosting a public webserver on obos

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pls no DDOS meme

inland radish Jan 31, 2026, 10:17 PM

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flint idol http://obos-dev.ddns.net:8080/

address unreachable

flint idol Jan 31, 2026, 10:17 PM

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it crashed meme

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📎 82358f9c6c3b32aa1fe90e61327ff87a3f9814dd

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shit embed fail

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for future reference:
⁨ sudo firewall-cmd --permanent --zone=public --add-forward-port=port=8080:proto=tcp:toaddr=192.168.1.2:toport=80⁩

flint idol Jan 31, 2026, 11:01 PM

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weird crash

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it page faults trying to execute a null fptr

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but dispatch dpcs doesn't call any function ptrs

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nor do any of the functions it calls

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and it faults sometime while calling ⁨Core_SpinlockRelease(&target->dpc_queue_lock, oldIrql);⁩

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while this does call lower irql which

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dispatches DPCs

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it makes sure dpc->handler isnt null before calling it

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so that can't be it

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the only thing i can think of is a weak function called somewhere

flint idol Jan 31, 2026, 11:29 PM

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i decided to make a core dump of obos in qemu at the time of crash on the vps

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and im gonna examine and see what exactly happened

flint idol Feb 1, 2026, 2:52 AM

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it is 952 pm

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time to implement congestion control

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time to read rfc5681

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i feel so sophistocated when i read RFCs

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:>

uncut narwhal Feb 1, 2026, 3:00 AM

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good luck

flint idol Feb 1, 2026, 3:01 AM

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thx

flint idol Feb 1, 2026, 3:28 AM

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flint idol time to implement congestion control

man this is complicated

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im understanding it but this gonna be difficult to implement

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might need a small rewrite of the tcp transmission code

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rfc9293 my beloved

flint idol Feb 1, 2026, 4:01 AM

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before i do congestion control im gonna implement some mitigations for attacks described by RFC5961

blazing python Feb 1, 2026, 5:22 AM

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flint idol http://obos-dev.ddns.net:8080/

virus

flint idol Feb 1, 2026, 5:23 AM

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website is literally down smh

blazing python Feb 1, 2026, 5:24 AM

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flint idol website is literally down smh

try to host some page from obos and ddos it with replit or something

flint idol Feb 1, 2026, 5:24 AM

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that's the plan

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hopefully my vps provider is chill with this trl

dense vigil Feb 1, 2026, 5:41 AM

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flint idol hopefully my vps provider is chill with this <:trl:829316641191886888>

I can do it from my grandmas house

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trl

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It would be limited to 100mbps

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Which for OBOS

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Is like uhhh

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A neutrino bomb

flint idol Feb 1, 2026, 5:41 AM

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lol

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i actually uh do not think i even pay enough for my vps to allow such bandwith

dense vigil Feb 1, 2026, 5:49 AM

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I would use an HTTP stress testing util

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So I could tune it or some shits

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It’s what I used to test my HTTP server impl in HRMR

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(This was over WiFi ti my desktop iirc)

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(And the HTTP part was using the thread pool and it kept up really well putting tasks on the queue and having the threads take them and deliver them to the epoll loop and shit)

inland radish Feb 1, 2026, 5:56 AM

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flint idol i actually uh do not think i even pay enough for my vps to allow such bandwith

a vps with less than 1gbps bandwidth is criminal

flint idol Feb 1, 2026, 5:58 AM

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tbf idr what im paying for

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all i know is that im paying 10 bucks a month and ⁨⁨ssh⁩⁩ing into the vps is painful

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yeah 750mbps out

dense vigil Feb 1, 2026, 6:12 AM

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I know some VPS providers that may be better

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They give me 10gbps

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PSP1G_pspTrollar

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3.50 a month

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For 1gb ram

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Though they always out of fucking stock

dense vigil Feb 1, 2026, 6:14 AM

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flint idol

The fuck is congestion

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Lmao

flint idol Feb 1, 2026, 6:15 AM

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dense vigil The fuck is congestion

rfc2914

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idk

dense vigil Feb 1, 2026, 6:16 AM

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flint idol rfc2914

What is 2 + 2.

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RFC4

inland radish Feb 1, 2026, 6:42 AM

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flint idol

also how is it possible to boot custom OSes on a VPS?

knotty totem Feb 1, 2026, 6:43 AM

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Depends on the provider

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Many will let you mount your own ISO

flint idol Feb 1, 2026, 6:48 AM

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inland radish also how is it possible to boot custom OSes on a VPS?

idk

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but i just used a vm on the vps to host an http server on obos

knotty totem Feb 1, 2026, 6:49 AM

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They enable nested virtualization on yours? Or are you running it on qemu tcg

flint idol Feb 1, 2026, 6:49 AM

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qemu tcg

knotty totem Feb 1, 2026, 6:49 AM

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Ah

flint idol Feb 1, 2026, 6:49 AM

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once I fix my tcp transmission code and I get congestion control

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and fix some instability in my tcp thing

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I will be bringing the obos webserver back up

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and hopefully I can uncover some bugs/vulnerabilities with obos

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I also might add some watchdog timer to obos so that I dont need to manually reboot that server when it crashes

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would be nmi powered, if after like a minute the userspace doesnt write a byte to the device, it will reset the kernel with a triple fault

dense vigil Feb 1, 2026, 6:52 AM

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Why not have it set the IDT to 0 or something

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More reliable

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At triple faulting*

inland radish Feb 1, 2026, 7:07 AM

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set CR3 to 0

dense vigil Feb 1, 2026, 7:21 AM

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inland radish set CR3 to 0

That’s not a garuntee

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Something could be there

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Making the IDT limit 0

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Will certainly always crash

flint idol Feb 1, 2026, 1:29 PM

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#ifdef __x86_64__
    UACPI_ARCH_DISABLE_INTERRUPTS();
    // Try triple faulting.
    struct {
        uint16_t limit;
        uint64_t base;
    } OBOS_PACK gdtr = {.limit=0x18-1};
    asm volatile ("lgdt (%0); mov $0x8, %%ax; mov %%ax, %%ss; push $0;" : :"r"(&gdtr) :"memory");
    // We should not be here anymore.
    OBOS_UNREACHABLE;
#endif```

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this is what I do if acpi reboot fails

flint idol Feb 1, 2026, 1:29 PM

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flint idol this is what I do if acpi reboot fails

in OBOS_Reboot

flint idol Feb 1, 2026, 1:30 PM

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flint idol ```c #ifdef __x86_64__ UACPI_ARCH_DISABLE_INTERRUPTS(); // Try triple fa...

ill also do this in the watchdog trip function

flint idol Feb 1, 2026, 5:00 PM

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i fixed some bugs in my tcp transmission code

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now it actually respects the MSS

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and it also now sends packets properly

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and retransmits packets properly

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i think it retransmits packets properly

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what kind of shit is obos smoking 💀

flint idol Feb 1, 2026, 5:35 PM

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http://obos-dev.ddns.net:8080/

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The obos test webserver should be back up

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if anyone wants to try and crash it

wet smelt Feb 1, 2026, 5:38 PM

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my requests are timing out 😔

flint idol Feb 1, 2026, 5:39 PM

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⁨```
Flags [S.], seq 13167384, ack 1832486055, win 65535, options [mss 1460,[bad opt]]

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idk who's sending this bad packet

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now while obos is probably handling it right

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idk why it hung

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it should work again

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i will continue working on my kernel in the meantime

real pecan Feb 1, 2026, 5:42 PM

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RCE on oberrow computer because of crappy obos net stack trl

flint idol Feb 1, 2026, 5:44 PM

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hold on that server will be down for a bit

#

i need to make sure that no packets are retransmitted if the connection is reset

blazing python Feb 1, 2026, 5:45 PM

#

flint idol if anyone wants to try and crash it

at least it works

flint idol Feb 1, 2026, 5:45 PM

#

did u try it

blazing python Feb 1, 2026, 5:45 PM

#

yes

flint idol Feb 1, 2026, 5:45 PM

#

dna internet?

#

trl

#

im tcpdumping as well to check out

#

what causes the kernel to die

blazing python Feb 1, 2026, 5:46 PM

#

flint idol dna internet?

what is dna

#

im using vpn

flint idol Feb 1, 2026, 5:47 PM

#

ur vpn put you in finland i think

#

hm wait

#

i think someone was somehow trying to get obos to send a challenge ACK

#

as they established a connection, only up to SYN-RECEIVED

#

then tried to send another SYN

wet smelt Feb 1, 2026, 5:57 PM

#

idk im just trying to connect to it on my browser

#

and i am in finland

#

so probably me

flint idol Feb 1, 2026, 5:58 PM

#

your thing is sending obos a SYN

#

obos sends a SYN, ACK back

#

then your thing never ACKs it

#

and instead sends another SYN

#

which according to RFC5961 is a type of attack or smth

wet smelt Feb 1, 2026, 5:59 PM

#

the another syn could be me refereshing the page

flint idol Feb 1, 2026, 5:59 PM

#

nah it would use a different port number, most likely

wet smelt Feb 1, 2026, 5:59 PM

#

yeah right

flint idol Feb 1, 2026, 5:59 PM

#

and here it's on the same port

#

ah nvm i think i see a problem

#

yeah that's it

#

i misread my packet dump

#

obos isn't seeing the ACKs that are sent back

#

and it's also not seeing the RSTs that are sent when your thing gives up

#

which means

#

it's a bug with my e1000 drive

#

r

#

that's causing it to drop packets

#

while indeed this is a bizzaire bug

#

i think i have found the cause

flint idol Feb 1, 2026, 6:39 PM

#

anyway that server should be back up

#

someone just downloaded ⁨/home/obos/.bashrc⁩

#

how exciting

#

some1 just downloaded test.sh

#

this is quite exciting

#

wow obos is getting crawled by web spiders

#

and fun fact

#

as soon as you send a link in discord

#

it crawls it

#

this was right after i sent a link to this on discord

trim bay Feb 1, 2026, 6:54 PM

#

given the timing that's probably discord's embed generator

flint idol Feb 1, 2026, 6:55 PM

#

true

#

and some1 just made it stop working 😔

trim bay Feb 1, 2026, 6:55 PM

#

that's me

#

i tried to download /usr/bin/xterm

#

just via firefox, nothing special

flint idol Feb 1, 2026, 6:55 PM

#

ah

trim bay Feb 1, 2026, 6:55 PM

#

it got through the first 0.7MiB, said the download failed, when retrying got to 1.1MiB, failed again and now it's refusing connections

flint idol Feb 1, 2026, 6:55 PM

#

well you just found a bug so i will be generating a core dump and rebooting

#

my new favourite qemu monitor command is ⁨dump-guest-memory⁩

#

it gneerates a coredump file using the guest memory

#

anyway that server is back up

flint idol Feb 1, 2026, 7:00 PM

#

trim bay it got through the first 0.7MiB, said the download failed, when retrying got to ...

im looking at the core dump, and that connection is in FIN-WAIT-1, which i find interesting

wet smelt Feb 1, 2026, 7:04 PM

#

flint idol anyway that server should be back up

did you so something to the e1000 driver? i can now access it on my phone. i also did change to better network so that could be it too

flint idol Feb 1, 2026, 7:05 PM

#

wet smelt did you so something to the e1000 driver? i can now access it on my phone. i als...

yes i fixed a bug that was causing it to lose packets in the rx queue

#

someone managed to find a bug on obos

#

they were using a vpn

flint idol Feb 1, 2026, 7:06 PM

#

flint idol someone managed to find a bug on obos

this screenshot doesnt show it but obos would continue retransmitting SYN, ACK packets after a reset from the peer

sterile sparrow Feb 1, 2026, 7:08 PM

#

first time i've seen it up lol

#

uh oh i think i killed it

flint idol Feb 1, 2026, 7:08 PM

#

it's still alive

sterile sparrow Feb 1, 2026, 7:09 PM

#

oh yeah

flint idol Feb 1, 2026, 7:09 PM

#

transmission is kinda broken so there is a non-zero chance it wont work

sterile sparrow Feb 1, 2026, 7:09 PM

#

ah

flint idol Feb 1, 2026, 7:09 PM

#

flint idol transmission is kinda broken so there is a non-zero chance it wont work

especially for big files

#

that'll be fixed once i do congestion control

sterile sparrow Feb 1, 2026, 7:10 PM

#

that was so close lol

flint idol Feb 1, 2026, 7:11 PM

#

at least it didn't crash

sterile sparrow Feb 1, 2026, 7:11 PM

#

true lol

#

not loading anymore for me :(

uncut narwhal Feb 1, 2026, 7:12 PM

#

flint idol my new favourite qemu monitor command is ⁨`dump-guest-memory`⁩

its great yeah. if you pass the ⁨p⁩ flag to it it generates an ELF with sections set up to show you the arrangement of virtual memory too its great

flint idol Feb 1, 2026, 7:12 PM

#

it died for me as well 😔

#

time to reboot

blazing python Feb 1, 2026, 7:13 PM

#

sterile sparrow that was so close lol

208 kb

flint idol Feb 1, 2026, 7:13 PM

#

sterile sparrow uh oh i think i killed it

downloading it worked for me woo

#

it definitely would make sense if this were a congestion problem

uncut narwhal Feb 1, 2026, 7:14 PM

#

one of these days ill get networking up and can have my os download things from yours lol

flint idol Feb 1, 2026, 7:14 PM

#

as im a lot closer physically to that server than you are

flint idol Feb 1, 2026, 7:14 PM

#

uncut narwhal one of these days ill get networking up and can have my os download things from ...

lol

#

i once ⁨ssh⁩ed into astral from obos

#

it was an astronomical moment, truly

sterile sparrow Feb 1, 2026, 7:14 PM

#

o it completed

flint idol Feb 1, 2026, 7:14 PM

#

lets go

sterile sparrow Feb 1, 2026, 7:15 PM

#

flint idol i once ⁨`ssh`⁩ed into astral from obos

damn now i have to implement a network stack and ssh into obos which will ssh into astral

#

trl

uncut narwhal Feb 1, 2026, 7:15 PM

#

if youve got a link you want me to try downloading from windows i can do that btw, dunno if anyone else ehre is using windows's network stack

flint idol Feb 1, 2026, 7:15 PM

#

trl

flint idol Feb 1, 2026, 7:15 PM

#

uncut narwhal if youve got a link you want me to try downloading from windows i can do that bt...

http://obos-dev.ddns.net:8080/ahci

#

try downloading the ahci driver

#

ah fucking hell

#

the kernel hung

#

wait a sec

uncut narwhal Feb 1, 2026, 7:15 PM

#

lmao

#

right as i start it

flint idol Feb 1, 2026, 7:16 PM

#

it's back up now

uncut narwhal Feb 1, 2026, 7:17 PM

#

got to 118.8k and then stopped

#

no idea if thats a crash or if its just slow tho

flint idol Feb 1, 2026, 7:17 PM

#

dang

uncut narwhal Feb 1, 2026, 7:17 PM

#

still sitting at that number

real pecan Feb 1, 2026, 7:17 PM

#

the entire web should move to obos ngl

uncut narwhal Feb 1, 2026, 7:17 PM

#

lmao

sterile sparrow Feb 1, 2026, 7:17 PM

#

yes

flint idol Feb 1, 2026, 7:18 PM

#

uncut narwhal no idea if thats a crash or if its just slow tho

a) tcp transmission on obos is pretty bad b) the fact i have no TCP congestion control doesn't help that

flint idol Feb 1, 2026, 7:18 PM

#

real pecan the entire web should move to obos ngl

lmao

blazing python Feb 1, 2026, 7:18 PM

#

obos pterodactyl when

flint idol Feb 1, 2026, 7:18 PM

#

obos can't even talk to another obos

uncut narwhal Feb 1, 2026, 7:18 PM

#

attempt two it stopped at 118.0k instead of 118.8k

#

still stopped though

flint idol Feb 1, 2026, 7:18 PM

#

the download worked on obos

#

smh

#

obos' TCP stack is better than NT's confirmed

#

white mulch Feb 1, 2026, 7:19 PM

#

I need to try downloading it on crescent troll

flint idol Feb 1, 2026, 7:19 PM

#

do it

flint idol Feb 1, 2026, 7:20 PM

#

flint idol

uncut narwhal Feb 1, 2026, 7:22 PM

#

flint idol obos' TCP stack is better than NT's confirmed

third time it worked\

flint idol Feb 1, 2026, 7:22 PM

#

damn

#

obos' network stack caused obos' network stack to crash

#

i would send a screenshot but some tcpdump logs got caught in the crash dump

uncut narwhal Feb 1, 2026, 7:23 PM

#

rip

flint idol Feb 1, 2026, 7:28 PM

#

but anyway

#

that server is up after the crash

#

i should probably have this on a reboot timer

#

or add some sort of watchdog device

#

software watchdog through an NMI that happens every like minute idk

#

im gonna implement tcp congestion algorithms now

#

@devout niche what tcp congestion algorithms does fadanoid use, out of curiosity?

devout niche Feb 1, 2026, 7:38 PM

#

flint idol <@391791686881247234> what tcp congestion algorithms does fadanoid use, out of c...

unfortunately i don't yet, but will implement reno initially

flint idol Feb 1, 2026, 7:38 PM

#

i see

#

there is no way lol

#

some malicious site tried to POST something lol

#

⁨```
14:38:35.633057 IP srv-91-224-92-115.serveroffer.net.49316 > 192.168.1.2.http: Flags [P.], seq 1:71, ack 1, win 64240, length 70: HTTP: GET /cgi-bin/luci/;stok=/locale HTTP/1.1

#

smth else did this

#

⁨```
14:38:54.423113 IP 192.168.1.2.http > 193.142.147.209.45378: Flags [F.], seq 1, ack 1, win 65535, length 0

#

and this is teh ip of another malicious server that tried probing at obos

#

sterile sparrow Feb 1, 2026, 7:43 PM

#

lol

flint idol Feb 1, 2026, 7:43 PM

#

i should make obos just shit out utter bs on port 80

#

to confuse web crawlers

flint idol Feb 1, 2026, 7:45 PM

#

flint idol ⁨``` 14:38:35.633057 IP srv-91-224-92-115.serveroffer.net.49316 > 192.168.1.2.ht...

this is apparently supposed to exploit CVE-2023-1389

#

which is a bug on some TP-link router

flint idol Feb 1, 2026, 7:47 PM

#

flint idol there is no way lol

i searched it too, this post request also might be malicious

torpid wigeon Feb 1, 2026, 7:48 PM

#

TIL you're canadian

snow current Feb 1, 2026, 7:48 PM

#

oh ew

flint idol Feb 1, 2026, 7:48 PM

#

i indeed do live in canada

#

my parents are from syria

flint idol Feb 1, 2026, 7:49 PM

#

snow current oh ew

what did canadians ever do to you

snow current Feb 1, 2026, 7:49 PM

#

speak funny

flint idol Feb 1, 2026, 7:49 PM

#

are u american or smth

snow current Feb 1, 2026, 7:49 PM

#

fuck nah

flint idol Feb 1, 2026, 7:50 PM

#

what are u

white mulch Feb 1, 2026, 7:56 PM

#

white mulch I need to try downloading it on crescent <:troll:796858892985434152>

I just spent like 20 min figuring out why sys_socket_receive was returning ERR_INVALID_ARGUMENT just to figure out that sys_socket_create was never called due to it being inside an assert and me compiling in release mode 💀 but at least it kinda worked

flint idol Feb 1, 2026, 7:56 PM

#

lol

real pecan Feb 1, 2026, 7:58 PM

#

what is darkhttpd

flint idol Feb 1, 2026, 7:59 PM

#

idk stardust told me i should port a few months ago

#

i think cuz it was easy to port

#

it's written in pure C

flint idol Feb 1, 2026, 8:00 PM

#

white mulch I just spent like 20 min figuring out why sys_socket_receive was returning ERR_I...

may i ask what exactly happened here

#

did it download the file successfully or?

white mulch Feb 1, 2026, 8:01 PM

#

I think yes, I just tried to print the data

#

and the whole thing is doing a manual http get request https://gist.github.com/Qwinci/354fff9f850824d3ce1ebf9bbc4a099c

flint idol Feb 1, 2026, 8:02 PM

#

i see

flint idol Feb 1, 2026, 8:03 PM

#

white mulch I think yes, I just tried to print the data

best way to confirm is if you give me a checksum

#

of the file

#

and i can compare it against the actual file

#

ok that server is down for a bit

#

im fixing a bug where retransmissions of FINs would happen when they should not

flint idol Feb 1, 2026, 9:02 PM

#

anyway that server is back up

#

since i am procrastinating TCP congestion control im gonna port git

dense vigil Feb 1, 2026, 9:06 PM

#

flint idol i think cuz it was easy to port

why not port my HTTP server impkenentation slongesab oh wait it uses epoll yaaar

#

well its more of a full server framework but would be neat to see lmfao

flint idol Feb 1, 2026, 9:06 PM

#

epoll is scary

dense vigil Feb 1, 2026, 9:07 PM

#

Clueless

#

i mean how bad can it be

flint idol Feb 1, 2026, 9:07 PM

#

i dont want to find out

dense vigil Feb 1, 2026, 9:08 PM

#

flint idol Feb 1, 2026, 9:20 PM

#

yeah git does not work at all

#

it cant even initialize a repo

#

however, it was insanely easy to compile

#

currently actively implementing congestion control

flint idol Feb 1, 2026, 9:48 PM

#

im implementing the tahoe algorithm

#

with slow start and congestion avoidance

#

im not really understanding when and how the cwnd and ssthresh values should be updated

#

bah why does congestion have to exist why cant packets just magically make their way to the destination instantly

flint idol Feb 1, 2026, 10:59 PM

#

uh I need to change how packet enqueuing works

#

as the sequence numbers are completely messed up sometimes

#

which is why more often than not people would get incomplete downloads

#

the bug is currently that snd.nxt is not moved when it would go past the send window edge

#

which is correct behavior

#

but the push data to remote function

#

doesnt account for that

#

nor does the retransmission timer

#

what should happen is that assignment of the sequence number should happen when it actually transmits the segment

real pecan Feb 1, 2026, 11:29 PM

#

How does cogestion work

flint idol Feb 1, 2026, 11:30 PM

#

real pecan How does cogestion work

congestion happens cuz a network is overloaded

#

congestion control is tcp's best attempt at not overloading a network

#

how this is done varies by algorithm

#

but you generally have one variable in the tcp state that is called the congestion window

flint idol Feb 1, 2026, 11:32 PM

#

flint idol but you generally have one variable in the tcp state that is called the congesti...

the tcp is never to send more data than this congestion window can handle

#

how the congestion window is managed differs by what algorithm is used

#

but in the one I am doing, the initial congestion window is initialized through the value of MSS

#

and it also has another variable called ssthresh

#

which is the slow start threshold

#

the ss threshold starts at an infinite value

#

and is modified at a few points

#

which i forgor

real pecan Feb 1, 2026, 11:38 PM

#

Interesting

flint idol Feb 1, 2026, 11:39 PM

#

flint idol and is modified at a few points

ill explain how this algorithm works once im back at my pc

#

as im new to how this works

flint idol Feb 1, 2026, 11:39 PM

#

flint idol ill explain how this algorithm works once im back at my pc

u can read rfc 5681

#

for a description of some algorithms

flint idol Feb 1, 2026, 11:54 PM

#

real pecan Interesting

essentially

#

this algorithm says congestion happens whenever the tcp has to do a retransmission

dense vigil Feb 1, 2026, 11:55 PM

#

flint idol u can read rfc 5681

https://files.evalyngoemer.com/share/manuals/inet/tcp-congestion-control-rfc5681.pdf

#

if you need it rn

flint idol Feb 1, 2026, 11:56 PM

#

flint idol this algorithm says congestion happens whenever the tcp has to do a retransmissi...

and when congestion occurs, the congestion window is reset back to its initial value on SYN

#

and the slow start threshold is set to congestion window / 2

flint idol Feb 1, 2026, 11:56 PM

#

flint idol and the slow start threshold is set to congestion window / 2

(and this happens before teh congestion window is modified)

#

the congestion window increases whenever an ACK is sent by the peer

#

and by what degree it increases depends on whether the tcp is currently using slow start (i.e., congestion window < slow start threshold), or congestion avoidance

dense vigil Feb 1, 2026, 11:58 PM

#

iirc the slow start window is normaly 14kb? and thats why your site is good to be under that for most cases

sterile sparrow Feb 1, 2026, 11:58 PM

#

this sounds way more fun than debugging xorg race conditions for 3 weeks

flint idol Feb 1, 2026, 11:58 PM

#

dense vigil iirc the slow start window is normaly 14kb? and thats why your site is good to b...

uh no

flint idol Feb 1, 2026, 11:58 PM

#

flint idol and by what degree it increases depends on whether the tcp is currently using sl...

in the case of slow start, it is increased by ⁨min(bytes acked, mss)⁩

#

otherwise it is increased by this formula: ⁨⁨mss * mss/cwnd⁩⁩

dense vigil Feb 1, 2026, 11:59 PM

#

https://endtimes.dev/why-your-website-should-be-under-14kb-in-size/
this is there i saw that trl

flint idol Feb 1, 2026, 11:59 PM

#

sterile sparrow this sounds way more fun than debugging xorg race conditions for 3 weeks

as someone who has debugged xorg race conditions

#

it is

#

a lot funner

flint idol Feb 1, 2026, 11:59 PM

#

dense vigil https://endtimes.dev/why-your-website-should-be-under-14kb-in-size/ this is ther...

it depends on the algorithm

dense vigil Feb 1, 2026, 11:59 PM

#

true

snow current Feb 1, 2026, 11:59 PM

#

I love race conditions

#

they are really fun to debug

flint idol Feb 2, 2026, 12:00 AM

#

dense vigil <:true:1320478073358913629>

in the slow start algorithm it starts based off this:
⁨⁨```c
if (con->state.snd.smss <= 1095)
con->state.ciw = 4 * con->state.snd.smss;
else if (con->state.snd.smss <= 2190)
con->state.ciw = 3 * con->state.snd.smss;
else
con->state.ciw = 2 * con->state.snd.smss;

dense vigil Feb 2, 2026, 12:00 AM

#

just set race_condition=false

#

your done

flint idol Feb 2, 2026, 12:00 AM

#

dense vigil just set race_condition=false

genius

dense vigil Feb 2, 2026, 12:00 AM

#

PSP1G_pspTrollar

snow current Feb 2, 2026, 12:00 AM

#

dense vigil just set race_condition=false

sooooo

#

turning off multithreading

dense vigil Feb 2, 2026, 12:00 AM

#

it can still happen on one core

snow current Feb 2, 2026, 12:00 AM

#

well

#

that's easy to debug tho

dense vigil Feb 2, 2026, 12:00 AM

#

thats why you set race_condition=false

#

its the magic bullet

#

just like how c++ is the magic bullet for shotgunning your leg off

flint idol Feb 2, 2026, 12:01 AM

#

flint idol in the slow start algorithm it starts based off this: ⁨⁨```c if (con->state.snd....

usually smss is 1460 bytes

#

so the congestion window starts at 4380 bytes

flint idol Feb 2, 2026, 12:24 AM

#

weirdly

#

there are attacker IPs that send a SYN to obos

#

and obos SYNs back

#

but they just RST back

#

idk if this is a port scan

#

or if they're tryna abuse a CVE

#

it's quite weird

flint idol Feb 2, 2026, 12:40 AM

#

uncut narwhal third time it worked\

btw i fixed that bug

#

wasnt congestion control or anything

#

my tx code had a bug i hadnt noticed yet

#

the obos server now has a build with experimental congestion control btw

uncut narwhal Feb 2, 2026, 12:43 AM

#

nice

flint idol Feb 2, 2026, 12:43 AM

#

flint idol the obos server now has a build with experimental congestion control btw

and it is now down because i need to fix a bug where RST breaks it

#

uncut narwhal Feb 2, 2026, 12:44 AM

#

flint idol and it is now down because i need to fix a bug where RST breaks it

literally right as i hit the run web request button to test it lmao

flint idol Feb 2, 2026, 12:44 AM

#

obos, sees reset
must mean i need to retransmit SYN,ACK

#

hold on ill bring it back up

#

its back up

uncut narwhal Feb 2, 2026, 12:44 AM

#

nw lol, just figured id try it

#

ok this time it went so fast i didnt even get to see output from invoke-webrequest

#

and worked

flint idol Feb 2, 2026, 12:45 AM

#

damn

#

u sure it actually made a request?

#

im looking at the kernel logs and it hasnt logged anything to do with congestion control

flint idol Feb 2, 2026, 12:46 AM

#

uncut narwhal ok this time it went so fast i didnt even get to see output from invoke-webreque...

delete the file and retry to make sure it didnt like cache it or sm shit

uncut narwhal Feb 2, 2026, 12:46 AM

#

same result, ima see if invoke-webrequest has some sort of verbose option to get speeds showing

flint idol Feb 2, 2026, 12:46 AM

#

flint idol im looking at the kernel logs and it hasnt logged anything to do with congestion...

which would happen if there was any connection

flint idol Feb 2, 2026, 12:46 AM

#

uncut narwhal same result, ima see if invoke-webrequest has some sort of verbose option to get...

ah i just saw smth from tcpdump ur good

uncut narwhal Feb 2, 2026, 12:47 AM

#

🎉

flint idol Feb 2, 2026, 12:49 AM

#

for some reason, this build seems to be less stable than the last one

#

as the kernel/web server stops responding to GET requests

#

after enough requests

flint idol Feb 2, 2026, 12:58 AM

#

flint idol >obos, sees reset >must mean i need to retransmit SYN,ACK

ok i fixed that bug

#

it turns out when i was implementing some attack mitigations in RFC5961, I accidentally made the RST handling code drop the reset if the segment was acceptable

#

instead of if it is unacceptable

#

unfortunately, my congestion control algorithm seems to fold really easily

flint idol Feb 2, 2026, 2:44 AM

#

im gonna commit what I have so far

#

and go to sleep

#

gn yall

flint idol Feb 2, 2026, 5:20 PM

#

my computer sci class has a lot of pcs im gonna see if they will let me test obos on them

sterile sparrow Feb 2, 2026, 5:31 PM

#

lol i'll be taking inspiration from that :^)

dense vigil Feb 2, 2026, 8:07 PM

#

flint idol my computer sci class has a lot of pcs im gonna see if they will let me test obo...

Did they let you

flint idol Feb 2, 2026, 8:07 PM

#

didnt ask yet

flint idol Feb 3, 2026, 4:51 PM

#

today im going to be fixing bugs causing the http server to break

flint idol Feb 3, 2026, 10:34 PM

#

flint idol today im going to be fixing bugs causing the http server to break

no wrong im gonna be doing religion homework nooo

dense vigil Feb 3, 2026, 10:35 PM

#

flint idol no wrong im gonna be doing religion homework <:nooo:750466870993223750>

Make OBOS into a religion

#

https://tenor.com/view/religion-bill-wurtz-dont-history-gif-14178134

Tenor

#

Then do your homework on OBOS

#

Problem solved

#

yahooo

flint idol Feb 3, 2026, 10:35 PM

#

https://tenor.com/view/industrial-gloves-industrial-prtection-gloves-market-gif-25464472

Tenor

#

problem gloves trl

sterile sparrow Feb 3, 2026, 10:39 PM

#

flint idol no wrong im gonna be doing religion homework <:nooo:750466870993223750>

what kind of homework is that??

flint idol Feb 3, 2026, 10:39 PM

#

sterile sparrow what kind of homework is that??

easy homework

#

but homework nonetheless

sterile sparrow Feb 3, 2026, 10:40 PM

#

in my schools religion class the teacher plays movies while we just use our phones

#

it's fucking pointless

flint idol Feb 3, 2026, 10:41 PM

#

lol

sterile sparrow Feb 3, 2026, 10:41 PM

#

not to mention they're the same movies always

flint idol Feb 4, 2026, 1:49 AM

#

damn my vfs syscall source file is 3249 lines

#

why do i have so many vfs syscalls

flint idol Feb 4, 2026, 2:53 AM

#

#

wtf is this crash

#

the faulting instruction is a rep movsb

#

the faulting instruction is nowhere near rdi or rsi

dense vigil Feb 4, 2026, 2:54 AM

#

flint idol the faulting instruction is a `rep movsb`

whats direction flag set to?

flint idol Feb 4, 2026, 2:54 AM

#

flint idol the faulting instruction is nowhere near `rdi` or `rsi`

address*

#

0x210292 is rflags

#

let me check my bitfield

#

it's unset

dense vigil Feb 4, 2026, 2:55 AM

#

btw quick question do you remember the CPUID thing for 1gb and 2mb pages

#

wtf is this doing

flint idol Feb 4, 2026, 2:55 AM

#

2mb are always supported

flint idol Feb 4, 2026, 2:55 AM

#

dense vigil wtf is this doing

ill write it off as a tcg bug and get on with my life trl

dense vigil Feb 4, 2026, 2:56 AM

#

trl

#

test on kvm

flint idol Feb 4, 2026, 2:56 AM

#

no such fault ever happens

snow current Feb 4, 2026, 2:57 AM

#

dense vigil btw quick question do you remember the CPUID thing for 1gb and 2mb pages

who caresssssss

flint idol Feb 4, 2026, 2:58 AM

#

anyway

#

s

snow current Feb 4, 2026, 2:58 AM

#

leaf=0x80000001, subleaf=0, edx, bit 26

dense vigil Feb 4, 2026, 2:59 AM

#

ty

snow current Feb 4, 2026, 2:59 AM

#

iirc

flint idol Feb 4, 2026, 2:59 AM

#

flint idol s

i still have many bugs to fix with tcp transmission on obos

snow current Feb 4, 2026, 2:59 AM

#

yeah

dense vigil Feb 4, 2026, 2:59 AM

#

it is i saw on sandpile

flint idol Feb 4, 2026, 2:59 AM

#

flint idol i still have many bugs to fix with tcp transmission on obos

as a 16M file cannot be downloaded over a network (at least not on tcg?) without failing in some way

#

never knew checksum checks actually failed over networks

#

i thought that was a myth made up by big RFC to sell more checksum functions

dense vigil Feb 4, 2026, 3:07 AM

#

flint idol no such fault ever happens

tcg bug trl send a bug report

#

talk is big dont send patches

flint idol Feb 4, 2026, 6:42 PM

#

dense vigil tcg bug <:trl:829316641191886888> send a bug report

btw i cant connect to ur website on my school wifi

sterile sparrow Feb 4, 2026, 7:21 PM

#

my school blocks some github pages ips but not all for some reason

#

but hey they don't block my ip so

flint idol Feb 4, 2026, 7:39 PM

#

dense vigil tcg bug <:trl:829316641191886888> send a bug report

remember that bug u got

#

when u built obos

#

i was able to reproduce it

#

I reproduced it when trying to boot obos on a school pc in the comp sci room

#

had compilers pre-installed on it it was quite easy

#

and vs studio 2022

#

and obos already builds on windows anyway

#

then when I booted it on virtual box (also pre-installed)

#

I reproded the crash

dense vigil Feb 4, 2026, 8:48 PM

#

flint idol remember that bug u got

Oh damn

#

PSP1G_pspTrollar

flint idol Feb 4, 2026, 10:42 PM

#

dense vigil Oh damn

I fixed it

#

the reason I couldnt reproduce it is because it didnt happen with ld, only with lld

#

the driver interface was trying to access the driver header's function table before applying the relocations

flint idol Feb 4, 2026, 10:44 PM

#

flint idol the driver interface was trying to access the driver header's function table bef...

and the function table was nullptr before relocations

dense vigil Feb 5, 2026, 12:44 AM

#

flint idol and the function table was nullptr before relocations

What was the fix

flint idol Feb 5, 2026, 12:44 AM

#

dense vigil What was the fix

dont use the function table before relocations

dense vigil Feb 5, 2026, 12:44 AM

#

true

#

Wait why wouldn’t RIP be going to zero?

flint idol Feb 5, 2026, 12:45 AM

#

why would it?

#

it wasnt calling any function in the ftable

#

it was just checking if one was null

#

diff --git a/src/oboskrnl/driver_interface/loader.c b/src/oboskrnl/driver_interface/loader.c
index 0e71a53..bea4473 100644
--- a/src/oboskrnl/driver_interface/loader.c
+++ b/src/oboskrnl/driver_interface/loader.c
@@ -163,12 +163,6 @@ OBOS_NO_UBSAN driver_id *Drv_LoadDriver(const void* file_, size_t szFile, obos_s
             *status = st;
         return nullptr;
     }
-    if (!header_.ftable.driver_cleanup_callback)
-    {
-        OBOS_Error("%s: Refusing to load a driver without a cleanup callback.\n", __func__);
-        if (status) *status = OBOS_STATUS_INVALID_HEADER;
-        return nullptr;
-    }
     for (driver_node* curr = Drv_LoadedDrivers.head; curr; )
     {
         if (strncmp(header_.driverName, curr->data->header.driverName, 64))
@@ -397,7 +391,10 @@ obos_status Drv_UnrefDriver(driver_id* driver)
             driver->main_thread->free(driver->main_thread);
         driver->main_thread = 0;
     }
-    driver->header.ftable.driver_cleanup_callback();
+    if (driver->header.ftable.driver_cleanup_callback)
+        driver->header.ftable.driver_cleanup_callback();
+    else
+        OBOS_Error("%s: memory leak! driver_cleanup_callback is nullptr!\n", __func__);
     for (driver_node* node = driver->dependencies.head; node; )
     {
         // node->data->refCnt--;

#

this is the diff

#

tcp is driving me a bit insane
(have to get this off my chest im telling you today?)
((elite ball knowledge required to understand that trl ))

dense vigil Feb 5, 2026, 12:49 AM

#

flint idol it was just checking if one was null

So it would check if it’s null then fuck up?

flint idol Feb 5, 2026, 12:49 AM

#

yeah

dense vigil Feb 5, 2026, 12:49 AM

#

I’m on mobile and can’t read diffs

dense vigil Feb 5, 2026, 12:49 AM

#

flint idol tcp is driving me a bit insane (have to get this off my chest im telling you tod...

That’s just osdev PSP1G_pspTrollar

flint idol Feb 5, 2026, 12:49 AM

#

yes

flint idol Feb 5, 2026, 12:50 AM

#

flint idol tcp is driving me a bit insane (have to get this off my chest im telling you tod...

but elite ball knowledge is required to understand the 2nd line of this msg

flint idol Feb 5, 2026, 2:02 AM

#

ohoshahsbsheus

#

I get it now

#

i get it now

#

ill be redesigning my retransmission queue tomorrow

#

to be a buffer

#

and when data is ACKed or the retransmission timer is hit, it will try and send more data

#

more details tomorrow

#

after I play terraria

flint idol Feb 5, 2026, 11:26 AM

#

anyway the reason I am doing this

#

is because sequence numbers become weird and out of order because I managed to get the kernel to send them wrong

#

so how this new transmission queue will work is there will be infinite space like the rx buffer

#

and the semantics will be the same

#

but the consumer is the network stack

dense vigil Feb 5, 2026, 11:28 AM

#

flint idol so how this new transmission queue will work is there will be infinite space lik...

I would probably limit it to some sane limit no? So it can’t fucking overload the system?

flint idol Feb 5, 2026, 11:28 AM

#

true

#

I should probably also limit the rx buffer

#

but problem for later

dense vigil Feb 5, 2026, 11:28 AM

#

Just limit it to like 16k max sized packets worth of space

flint idol Feb 5, 2026, 11:29 AM

#

flint idol but the consumer is the network stack

and it will consume data whenever it advances SND.UNA and push that data

flint idol Feb 5, 2026, 11:29 AM

#

dense vigil Just limit it to like 16k max sized packets worth of space

16K buffer sizes might as well be asking for terrible performance

#

in TCP

#

it should probably have SND.WND*2 size

dense vigil Feb 5, 2026, 11:29 AM

#

flint idol 16K buffer sizes might as well be asking for terrible performance

It’s less than infinite?

flint idol Feb 5, 2026, 11:30 AM

#

dense vigil It’s less than infinite?

u get terrible performance with small buffers

#

in tcp

#

as the goal with transmission is to send as much as the network and receiver can handle to maximize throughput

dense vigil Feb 5, 2026, 11:30 AM

#

I’m not saying 16kb I’m saying enough space to fit 16 thousand packets of the max TCP packet size

#

Or is that like nothing

flint idol Feb 5, 2026, 11:31 AM

#

"max packet size" can mean a lot

#

it can mean the MSS (max segment size) sent by the peer

#

it could also mean 64K because that is generally the ip max packet size

dense vigil Feb 5, 2026, 11:32 AM

#

flint idol it can mean the MSS (max segment size) sent by the peer

1460 bytes or something right? Or MSS that’s what I was referring to

flint idol Feb 5, 2026, 11:32 AM

#

flint idol it can mean the MSS (max segment size) sent by the peer

and that is generally 1560 bytes for an ipv4 connection

#

1460*

#

1460*16000 is a lot of bytes, realistically if i were to limit this buffer it would be double the amount the peer can handle (so send window * 2 bytes, which is likely around 128K bytes)

dense vigil Feb 5, 2026, 11:34 AM

#

true

#

Still less than infinite so my point stands trl

#

But yeah that sounds about right

#

Could even make it a 2mb page worth of buffer size?

#

And then have some TLB bonuses

flint idol Feb 5, 2026, 11:35 AM

#

flint idol and it will consume data whenever it advances SND.UNA and push that data

and then im not sure if the retransmission queue will stay the same (i.e., a queue) but I will see

#

and hopefully this will allow for larger files to be sent as right now it is completely broken

#

and this buffer wont actually be the exact same as the rx buffer

#

it might have some more internal read pointers

#

which i will describe later

dense vigil Feb 5, 2026, 11:39 AM

#

Nice nice

dense vigil Feb 5, 2026, 11:39 AM

#

dense vigil Could even make it a 2mb page worth of buffer size?

Is this a dumb idea I wonder?

flint idol Feb 5, 2026, 11:40 AM

#

dense vigil Is this a dumb idea I wonder?

no

#

i might do it

dense vigil Feb 5, 2026, 11:42 AM

#

Then I think I will too

#

Since my buddy allocator will do 2mb to 4kb pages hmmCat

flint idol Feb 5, 2026, 6:02 PM

#

I found out how to bypass my school's firewall

#

if i use curl --resolve

#

it completely bypasses it

#

only works on my site tho

dense vigil Feb 5, 2026, 9:21 PM

#

flint idol if i use curl --resolve

Lmfao

flint idol Feb 5, 2026, 9:28 PM

#

flint idol only works on my site tho

unfortunately it only works on http

#

https I have found the firewall returns invalid certificate

flint idol Feb 5, 2026, 9:34 PM

#

flint idol if i use curl --resolve

I figure this is because they examine the http payload for the Host: section and also any other hints of the host (dns queries as well as hints in the SSL connection i think)

#

but --resolve makes it oblivious to the fact that im trying to communicate with an IP that it blocks

#

because all the http headers and everything contain the unrestricted domain on it

flint idol Feb 6, 2026, 1:54 AM

#

I should rewrite obos as a microkernel

#

all the cool kids are doing one

#

trl

#

jk

#

maybe one day ill write a microkernel

flint idol Feb 6, 2026, 1:57 AM

#

flint idol my computer sci class has a lot of pcs im gonna see if they will let me test obo...

the answer was yeah

#

cc @dense vigil u were wondering about this

dense vigil Feb 6, 2026, 1:59 AM

#

Fuck yah

#

Is it working

flint idol Feb 6, 2026, 2:01 AM

#

what the tcp thing

#

no i have barely been home all dau

#

day*

#

didnt check yet

#

im gonna work on fixing obos real hw bugs and xhci soon

#

so I can actually have smth to show

#

when I try testing obos

#

I actually have found that obos doesn't boot on a 10th gen intel core cpu

#

in vbox

flint idol Feb 6, 2026, 2:04 AM

#

flint idol in vbox

on hyperv

flint idol Feb 6, 2026, 2:32 AM

#

flint idol the answer was yeah

and yeah apparently im the only student he's met that has written their own kernel

#

(who would've guessed)

uncut narwhal Feb 6, 2026, 2:33 AM

#

flint idol the answer was yeah

yo pog

flint idol Feb 6, 2026, 2:33 AM

#

hey if anyone wants ill also test their kernels if they send me an image

flint idol Feb 6, 2026, 2:34 AM

#

flint idol and yeah apparently im the only student he's met that has written their own kern...

waiting until I meet a real osdev in real life

dense vigil Feb 6, 2026, 2:34 AM

#

flint idol hey if anyone wants ill also test their kernels if they send me an image

Let me get mine pushed with the VMA stuff

#

And generate an image

flint idol Feb 6, 2026, 2:34 AM

#

sure

dense vigil Feb 6, 2026, 2:34 AM

#

I cannot wait til I get exit() working tomorrow LETSFUCKINGGOOOOOO

flint idol Feb 6, 2026, 2:35 AM

#

flint idol waiting until I meet a real osdev in real life

too bad there aren't any osdevs i know of who live in Southern ontario

#

😔

uncut narwhal Feb 6, 2026, 2:35 AM

#

mine doesnt have any way to get info out of it unless youve got outb 0xE9 atm or id send it

dense vigil Feb 6, 2026, 2:35 AM

#

I wouldn’t mind moving to Canada lowkey

flint idol Feb 6, 2026, 2:35 AM

#

canadas amazing

dense vigil Feb 6, 2026, 2:35 AM

#

uncut narwhal mine doesnt have any way to get info out of it unless youve got `outb 0xE9` atm ...

A serial driver is really simple and flanterm can be bolted on very easy

uncut narwhal Feb 6, 2026, 2:36 AM

#

dense vigil A serial driver is really simple and flanterm can be bolted on very easy

i refuse to do serial unless im detecting the device properly and im doing this kernel as a learning project so no desire to use flanterm atm otherwise i wouldve some time ago

dense vigil Feb 6, 2026, 2:36 AM

#

You can make the serial port a kernel cmdline argument

flint idol Feb 6, 2026, 2:36 AM

#

detect it with acpi

dense vigil Feb 6, 2026, 2:36 AM

#

And probing is a form of detection

lean glen Feb 6, 2026, 2:36 AM

#

flint idol too bad there aren't any osdevs i know of who live in Southern ontario

Move here

dense vigil Feb 6, 2026, 2:36 AM

#

Imo

lean glen Feb 6, 2026, 2:37 AM

#

Or get me accepted into uoft or uwaterloo

uncut narwhal Feb 6, 2026, 2:37 AM

#

flint idol detect it with acpi

thats literally what im currently working on KEKW

flint idol Feb 6, 2026, 2:37 AM

#

lean glen Or get me accepted into uoft or uwaterloo

i dont think i can help with that

#

but I think u could get in

#

toronto is so meh

#

tbh

lean glen Feb 6, 2026, 2:38 AM

#

uoft is excellent

flint idol Feb 6, 2026, 2:38 AM

#

im talking about the city

uncut narwhal Feb 6, 2026, 2:38 AM

#

technically my bootloader does have display stuff so i could send an image but youd just stop getting feedback after exit boot services and my kernel ends by shutting down with uefi runtime services so itd probably just display stuff for a bit and then shut off lmao

lean glen Feb 6, 2026, 2:38 AM

#

oh yeah probably

flint idol Feb 6, 2026, 2:38 AM

#

its like rip off Canadian new york

lean glen Feb 6, 2026, 2:38 AM

#

flint idol but I think u could get in

Don't have the grades

#

probably will have to end up with McGill

lean glen Feb 6, 2026, 2:39 AM

#

lean glen Don't have the grades

Literally if I locked in first semester I would be fine because now my grades are really good

flint idol Feb 6, 2026, 2:39 AM

#

lean glen probably will have to end up with McGill

I see

lean glen Feb 6, 2026, 2:39 AM

#

That is, if McGill accepts me

#

I'm not sure if I wanna do CS or CE yet, and CE is more competitive

#

I'm not even sure if I wanna go to McGill, kinda dont wanna move cities but otoh it's a world renowned uni with access to a world renowned CS lab

flint idol Feb 6, 2026, 2:41 AM

#

I see

lean glen Feb 6, 2026, 2:41 AM

#

👁️ 🦭

#

(there is no sea emoji)

#

Do you know where you wanna go

flint idol Feb 6, 2026, 2:43 AM

#

im not sure yet, but I am definitely aiming for uwaterloo or for smth good like that

lean glen Feb 6, 2026, 2:43 AM

#

CS?

flint idol Feb 6, 2026, 2:43 AM

#

yeah

lean glen Feb 6, 2026, 2:43 AM

#

do you think you have the grades?

flint idol Feb 6, 2026, 2:43 AM

#

im not old enough to know yet

lean glen Feb 6, 2026, 2:43 AM

#

if not then CE is less competitive apparently

flint idol Feb 6, 2026, 2:44 AM

#

flint idol im not old enough to know yet

I actually have not revealed my age in here yet

lean glen Feb 6, 2026, 2:44 AM

#

flint idol im not old enough to know yet

Aren't you applying this year?

#

I thought we were the same age

flint idol Feb 6, 2026, 2:44 AM

#

nah

#

im younger

flint idol Feb 6, 2026, 2:44 AM

#

flint idol I actually have not revealed my age in here yet

im 15 lol

#

but im definitely going to lock in because I want to get somewhere good

#

in the future

lean glen Feb 6, 2026, 2:45 AM

#

huh, I was sure you were like 17-18

flint idol Feb 6, 2026, 2:45 AM

#

nah

#

I always left my age vague

#

cuz when I joined this server I was underage for discord lmao

lean glen Feb 6, 2026, 2:46 AM

#

flint idol but im definitely going to lock in because I want to get somewhere good

Waterloo requires near perfect grades and might not be worth it if you're not in it for the coop program, honestly a "good uni" isn't really that useful especially for undergraduates

dense vigil Feb 6, 2026, 2:46 AM

#

flint idol cuz when I joined this server I was underage for discord lmao

💀

#

im 17 and i feel wofully under done here yaaar

flint idol Feb 6, 2026, 2:46 AM

#

dense vigil im 17 and i feel wofully under done here <a:yaaar:1326358536946454608>

no i think im just a special type of tism or smth

dense vigil Feb 6, 2026, 2:46 AM

#

i have that tism too

#

you out tismed me

flint idol Feb 6, 2026, 2:47 AM

#

flint idol no i think im just a special type of tism or smth

(not actually diagnosed, just really hyperfixed)

dense vigil Feb 6, 2026, 2:47 AM

#

flint idol (not actually diagnosed, just really hyperfixed)

lowkey i wouldnt bat an eye so

#

(i am diagnosed with the AAA package)

flint idol Feb 6, 2026, 2:47 AM

#

autism, adhd, anxiety?

dense vigil Feb 6, 2026, 2:47 AM

#

yup

flint idol Feb 6, 2026, 2:47 AM

#

dang

dense vigil Feb 6, 2026, 2:47 AM

#

i hate it

#

uhhuh

lean glen Feb 6, 2026, 2:47 AM

#

The most impressive young guy here I can think of is andy

dense vigil Feb 6, 2026, 2:48 AM

#

BUT

#

https://tenor.com/view/fuck-it-we-ball-cat-dna-ballin-gif-2085555445816338978

Tenor

flint idol Feb 6, 2026, 2:48 AM

#

lean glen The most impressive young guy here I can think of is andy

how old is he

lean glen Feb 6, 2026, 2:48 AM

#

but I haven't really seen him active for like 2 years

#

He's my age, but aero was pretty damn good when he was 14

flint idol Feb 6, 2026, 2:48 AM

#

hm

#

I recognize this name idk why

#

is he the rust guy

lean glen Feb 6, 2026, 2:49 AM

#

Yeah

#

aero blew up a bit on GitHub too

flint idol Feb 6, 2026, 2:49 AM

#

interesting

#

seems like I have some catching up to do trl

lean glen Feb 6, 2026, 2:49 AM

#

it's not really a competition

#

We're all doing our own stuff

flint idol Feb 6, 2026, 2:50 AM

#

flint idol seems like I have some catching up to do <:trl:829316641191886888>

(/j)

lean glen Feb 6, 2026, 2:50 AM

#

nah it's normal to feel this way

#

But keep in mind people here are not representative of most developers

#

There's a heavy selection bias, and there's very smart people that will make you feel dumb even though you're still over average

#

You just gotta think about it optimistically and learn from them

dense vigil Feb 6, 2026, 2:53 AM

#

lean glen There's a heavy selection bias, and there's very smart people that will make you...

i feel really dumb alot here yaaar

#

i wonder where id actualy rank on some hypothetical global leaderboard

flint idol Feb 6, 2026, 2:53 AM

#

lean glen You just gotta think about it optimistically and learn from them

indeed

dense vigil Feb 6, 2026, 2:53 AM

#

but then again i look at #osdev-misc-0

#

and realize

#

maybe im doing doing sooo bad

#

PSP1G_pspTrollar

lean glen Feb 6, 2026, 2:54 AM

#

Well if you successfully enabled paging you're probably top 1% of this server statistically lol

dense vigil Feb 6, 2026, 2:54 AM

#

i have userspace workin and doom ported with possibly the most janky mlibc port ever

#

https://git.evalyngoemer.com/evalynOS/mlibc-evalynos

Evalyn's Git Server

mlibc-evalynos

mlibc port to evalynos

#

#

trl

snow current Feb 6, 2026, 2:54 AM

#

lean glen Well if you successfully enabled paging you're probably top 1% of this server st...

using a bootloader that doesn't do this for you :P

flint idol Feb 6, 2026, 2:55 AM

#

lean glen Well if you successfully enabled paging you're probably top 1% of this server st...

lol

lean glen Feb 6, 2026, 2:55 AM

#

snow current using a bootloader that doesn't do this for you :P

I meant loading your own page table

snow current Feb 6, 2026, 2:55 AM

#

dense vigil

oh

#

oh yeah

dense vigil Feb 6, 2026, 2:55 AM

#

What

#

There is nothing wrong with that

#

PSP1G_pspTrollar

snow current Feb 6, 2026, 2:55 AM

#

dense vigil <:PSP1G_pspTrollar:1434611394782691429>

who need to exit when we can just hang yk

dense vigil Feb 6, 2026, 2:56 AM

#

Ikr!

#

I’m adding in exit() tomorrow tho lmao

#

A proper one

snow current Feb 6, 2026, 2:56 AM

#

sure sure

dense vigil Feb 6, 2026, 2:59 AM

#

lean glen Well if you successfully enabled paging you're probably top 1% of this server st...

though really?

uncut narwhal Feb 6, 2026, 3:04 AM

#

lean glen I meant loading your own page table

ok this sounds more right, having paging enabled by the bootloader shouldnt count for that 1%

#

hell i wrote my own bootloader for my project and still have never actually manually enabled paging lmao

#

thanks uefi

dense vigil Feb 6, 2026, 3:14 AM

#

Heck most people can’t even get a GDT

flint idol Feb 6, 2026, 3:48 AM

#

if u have done smp u have successfully enabled paging

uncut narwhal Feb 6, 2026, 3:51 AM

#

flint idol if u have done smp u have successfully enabled paging

i havent yet, keep putting it off lol

vale nymph Feb 6, 2026, 4:03 AM

#

flint idol if u have done smp u have successfully enabled paging

16 bit smp:

flint idol Feb 6, 2026, 4:20 AM

#

vale nymph 16 bit smp:

does smp need lapic

#

doesnt*

#

and isnt that only usable with 32 bit addresses

#

i mean x2apic tho...

#

well gg u got me there

vale nymph Feb 6, 2026, 4:23 AM

#

unreal mode

#

u can just do mov [ds:ebx], XXX after the 386 nobody will stop you cro

#

troll3dflip

uncut narwhal Feb 6, 2026, 5:17 AM

#

flint idol does smp need lapic

can still have paging off i think? i dont remember for sure, i dont actually code for not-long-mode x86 lol

flint idol Feb 6, 2026, 11:41 AM

#

uncut narwhal can still have paging off i think? i dont remember for sure, i dont actually cod...

smp does not need paging enabled, no

#

unless of course it is long mode smp

snow current Feb 6, 2026, 11:42 AM

#

or you are in long mode at all

flint idol Feb 6, 2026, 11:42 AM

#

flint idol unless of course it is long mode smp

in which case you obviously need to since long mode requires paging

flint idol Feb 6, 2026, 11:42 AM

#

snow current or you are in long mode at all

who knows

#

not me, thats for sure

trim bay Feb 6, 2026, 11:45 AM

#

flint idol and isnt that only usable with 32 bit addresses

you don't even need x2apic for that, you can just write a different base address to the msr

flint idol Feb 6, 2026, 3:18 PM

#

someone should make an SMP capable real mode os

flint idol Feb 6, 2026, 3:34 PM

#

also a todo for my init program is to initialize the utmpx entries

uncut narwhal Feb 6, 2026, 3:45 PM

#

flint idol someone should make an SMP capable real mode os

dont have to worry about TLB shootdowns that way true

flint idol Feb 6, 2026, 3:47 PM

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letsgo
my mlibc sysdep PR got approved

uncut narwhal Feb 6, 2026, 3:49 PM

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yo nice

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also, i do know a project that has no paging/virtual memory at all but i dont know offhand if it does smp, dont think so

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it has multitasking i know that much

flint idol Feb 6, 2026, 5:29 PM

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damn

dense vigil Feb 6, 2026, 5:43 PM

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flint idol someone should make an SMP capable real mode os

PSP1G_pspTrollar

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il do it

dense vigil Feb 6, 2026, 6:51 PM

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@flint idol so how’s that network stack coming along

flint idol Feb 6, 2026, 7:08 PM

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dense vigil <@841762704766140486> so how’s that network stack coming along

its been merged for a few months.

dense vigil Feb 6, 2026, 7:12 PM

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well the fixing of TCP?

flint idol Feb 6, 2026, 7:51 PM

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no progress since I described my idea of the buffer instead of queue

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for tx

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progress will continue sometime in the next three days

vale nymph Feb 6, 2026, 8:04 PM

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@flint idol what webserver did u use

flint idol Feb 6, 2026, 8:04 PM

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darkhttpd

flint idol Feb 7, 2026, 7:57 PM

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vale nymph <@841762704766140486> what webserver did u use

btw does astral have any webservers ported

vale nymph Feb 7, 2026, 11:18 PM

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flint idol btw does astral have any webservers ported

Nope

flint idol Feb 8, 2026, 2:43 AM

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um what happened on the 25th of january lol

dense vigil Feb 8, 2026, 2:45 AM

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flint idol um what happened on the 25th of january lol

AI scrapers

flint idol Feb 8, 2026, 2:49 AM

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bruh

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why is this legal

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for fucks sake ive had ai scrapers on the goddamn obos web server

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as in

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the web server RUNNING ON OBOS

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fsdfnsdo

dense vigil Feb 8, 2026, 2:51 AM

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flint idol why is this legal

It’s not

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But they do something called

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“Lobbying”

flint idol Feb 8, 2026, 2:51 AM

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lobbying

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yeah

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this and the epstein shit bro like this world is so fucked

dense vigil Feb 8, 2026, 2:52 AM

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flint idol this and the epstein shit bro like this world is so fucked

OBOS will save it

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#introduce-yourself message

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OBOS is for the new world

flint idol Feb 8, 2026, 2:53 AM

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lmao

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yes it is

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obos for the new world

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FTNW

flint idol Feb 8, 2026, 2:54 AM

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flint idol progress will continue sometime in the next three days

im working on this rn

flint idol Feb 8, 2026, 3:39 AM

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i like this a lot more

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then my old queue

dense vigil Feb 8, 2026, 3:40 AM

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flint idol then my old queue

How many locks does it have

flint idol Feb 8, 2026, 3:40 AM

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one

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tx_buffer.lock

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is how many this implementation

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more locks than your entire kernel

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trl

dense vigil Feb 8, 2026, 3:42 AM

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I’m going to add spinlock.h

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Just you see

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@flint idol hows this

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flint idol Feb 8, 2026, 3:50 AM

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cring

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atomic flag better trl

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also feel like a clanker made this idk why

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not architecture independant either

dense vigil Feb 8, 2026, 3:50 AM

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i stole it from reddit

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trl

flint idol Feb 8, 2026, 3:51 AM

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doesn't turn off IRQs

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either

flint idol Feb 8, 2026, 3:51 AM

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flint idol doesn't turn off IRQs

disable preemption technically

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3/10

dense vigil Feb 8, 2026, 3:51 AM

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why would it need to disable IRQs

flint idol Feb 8, 2026, 3:51 AM

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deadlocks?

dense vigil Feb 8, 2026, 3:51 AM

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true

flint idol Feb 8, 2026, 3:51 AM

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the whole point of 'em are that they're interrupt safe

dense vigil Feb 8, 2026, 3:52 AM

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ok what would you prefer i make trl

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ive never used atomics

flint idol Feb 8, 2026, 3:52 AM

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what

dense vigil Feb 8, 2026, 3:52 AM

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i mean like

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what is the atomic flag

blazing python Feb 8, 2026, 3:52 AM

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flint idol um what happened on the 25th of january lol

https://cdn.discordapp.com/attachments/628681282565570590/1465347778837479456/hello-neighbor.gif

flint idol Feb 8, 2026, 3:52 AM

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atomic_flag

dense vigil Feb 8, 2026, 3:53 AM

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isnt that a C++ thing?

flint idol Feb 8, 2026, 3:53 AM

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no

dense vigil Feb 8, 2026, 3:53 AM

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oh right i have no stdatomic PSP1G_pspTrollar

flint idol Feb 8, 2026, 3:53 AM

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was added in C11

flint idol Feb 8, 2026, 3:53 AM

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dense vigil oh right i have no stdatomic <:PSP1G_pspTrollar:1434611394782691429>

skill issue

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ur using clang how do u even mess that up??

blazing python Feb 8, 2026, 3:54 AM

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dense vigil oh right i have no stdatomic <:PSP1G_pspTrollar:1434611394782691429>

std atomic is nice

dense vigil Feb 8, 2026, 3:55 AM

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flint idol ur using clang how do u even mess that up??

blame mint
https://codeberg.org/OSDev/freestnd-c-hdrs-0bsd/src/branch/trunk/include

Codeberg.org

freestnd-c-hdrs-0bsd

Collection of 0BSD-licensed freestanding C headers for GCC and Clang.

blazing python Feb 8, 2026, 3:55 AM

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at least because you can just add std::atomic<sometype> and not care about it

flint idol Feb 8, 2026, 3:55 AM

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dense vigil blame mint https://codeberg.org/OSDev/freestnd-c-hdrs-0bsd/src/branch/trunk/incl...

i dont think i will

dense vigil Feb 8, 2026, 3:55 AM

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thats part of the limine C template

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yaaar

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so people using the template afaik would have no stdatomic.h

flint idol Feb 8, 2026, 3:56 AM

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unless u pass -nostdinc u will have it

dense vigil Feb 8, 2026, 3:56 AM

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well well well trl

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how tf did that even get in there

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yaaar

#OBOS (not vibecoded)