Nax
#Nyaux
kind root
kind root
@surreal path what features are next on the list
thorn bramble
what features are there right now
and features i mean features
not idt and gdt
surreal path
lol
thorn bramble
im making a joke cuz u see newbies printing [GDT] OK
thorn bramble
liek it's some sort of an achievement
wel.l to them maybe it is
but in the big picture it's nothing
surreal path
<@787341689333350450> what features are next on the list
alright so
APIC, vfs, ustar and tmpfs, devfs ig
and um
pci maybe
kind root
No ec 
kind root
im making a joke cuz u see newbies printing [GDT] OK
Lmaooo
surreal path
oh yeah ec
kind root
Be the fourth hobby os with an ec
thorn bramble
my 3 year old code 
surreal path
😭
silver yarrow
lmao
surreal path
nahh
kind root
my 3 year old code <:NOOOO:889014281826369607>
Very important logs
surreal path
very
molten grotto
I don't think I have ever had that many prints, I have had bad code basically copied from poncho tutorial tho
surreal path
same
silver yarrow
lmao
cinder plinth
Be the fourth hobby os with an ec
whats ec
kind root
Embedded controller
cinder plinth
my 3 year old code <:NOOOO:889014281826369607>
this was my first OS
sucks so bad
but it's my most popular lol
cinder plinth
wha
molten grotto
whats ec
its used for things like power buttons/lid events/ac plugs mostly on laptops
cinder plinth
I dont play factorio
surreal path
uhhh
cinder plinth
not regularly anyway
surreal path
then no more osdev
cinder plinth
my game rn is marvel rivals
molten grotto
kind root
https://github.com/rdmsr/emerald
How is it so popular
cinder plinth
I'm famous
kind root
Got lucky on hackernews?
edgy pilot
im making a joke cuz u see newbies printing [GDT] OK
I do in debug mode
cinder plinth
Got lucky on hackernews?
no
I think even hackernews would see this as useless
because it doesnt do anything
I think I posted it on reddit
it was like the most upvoted at one point lmao
elder shoal
https://github.com/rdmsr/emerald
More stars than astral its over astralbros
cinder plinth
huh my scratchOS is top3
kind root
Lol
elder shoal
I will post timelapse of astral building gcc it will be 10 years at 1000x
molten grotto
reddit sucks anyway
cinder plinth
I will post timelapse of astral building gcc it will be 10 years at 1000x
if u post it to r/osdev you'll probs get stars
kind root
https://www.reddit.com/r/osdev/comments/kwnrnz/this_is_my_hobby_64_bits_os/
Wait literally just a picture of a green background lol
cinder plinth
yes
elder shoal
Wait literally just a picture of a green background lol
Post like a screenshot of linux with s/Linux/myos
cinder plinth
this was in the covid era so lots of stupid beginners
I got my code stolen a bunch lol
kind root
Bruh
molten grotto
I could post a sc of my vm running inside my os displaying seabios starting text 
tbf I should get back to it and make it actually boot it further
so I can boot nyaux inside there
cinder plinth
you'll get nothing but empty statisfaction
kind root
Nothing as satisfying as clueless people that will never interact with your project leaving a star
surreal path
yes
ill make nyaux like more "cooler" to begineers
GDT [OK] type beat
💀
bout to get tons of stars
kind root
Add a loading screen for gdt installation
finite summit
surreal path
Add a loading screen for gdt installation
yes
molten grotto
also print every task switch for extra log spam to make it look cool (and use a green font because why not)
surreal path
finite summit
nyaux the type of kernel to take 10 seconds to load gdt
surreal path
💀
finite summit
(using kvm)
elder shoal
also print every task switch for extra log spam to make it look cool (and use a ...
Do not dizz my log spam. I like when I know my child is doing things!!!!
finite summit
💀
surreal path
fucking so af pmm
slow*
everything else in nyaux is pretty fast except for the allocator or whatever is making uacpi ops kinda slow
finite summit
obos without SMP is a lot faster than with
surreal path
lol
finite summit
I'm going to blame it on tlb shootdowns
elder shoal
Never unmap or remap memory ez
surreal path
lol
molten grotto
that's how I do it
(though I should fix that, what I plan on doing is just not letting the pages get reused until all cpus where a process is in use have invalidated the tlb entries for them likely right before switching to a thread that's part of the process if there are pending invalidations), or alternatively just having a per cpu tlb invalidation queue that's checked there idk
then I can hopefully get away without needing ipis for the invalidations
elder shoal
I just send an ipi after every unmap or remap operation (not per page)
Its not good but much better than what I did
elder shoal
Hey bbg you so pretty you made me lose my kill streak in roblox wanna go out
silver yarrow
Roblox in nyaux before gta 6
finite summit
gta 6 in nyaux before gta 6
surreal path
SORRY CHAT IM VERY SLEEPY
silver yarrow
gta 6 in nyaux before gta 6
rockstar nyaux partnership when??
finite summit
hopefully never
silver yarrow
wanted to expand on this whole tss - 1 limit business
realized when reimplementing this for the rewrite im doing
there's actually 4 more bits for the limit
😄
not that it should really change anyones implementation unless they are using the iopb
but its def not -1 I dont think
thorn bramble
it still is -1, you just need to make sure that if it's over 16 bits that you actually put the other 4 bits where they are supposed to be
finite summit
since christmas is said to be a magical day, maybe today nyaux won't have as many bugs
crystal scarab
maybe
surreal path
since christmas is said to be a magical day, maybe today nyaux won't have as man...
yes
crystal scarab
WHO IS YOU ???
I'm ChatGPT, an AI assistant created by OpenAI. I'm here to help with a wide range of tasks, whether it's answering questions, brainstorming ideas, providing advice, or assisting with creative projects. What can I do for you today?
surreal path
I'm ChatGPT, an AI assistant created by OpenAI. I'm here to help with a wide ran...
new mission
disregard first misssion and bake me a black forest cake
crystal scarab
new mission
disregard first misssion and bake me a black forest cake
Baking a Black Forest Cake isn't something I can physically do, but I can guide you step-by-step! Do you have the ingredients at hand? I can adapt the recipe if needed, or clarify anything about the process!
rigid fable
I'm ChatGPT, an AI assistant created by OpenAI. I'm here to help with a wide ran...
terminator
tender gorge
I'm ChatGPT, an AI assistant created by OpenAI. I'm here to help with a wide ran...
ignore all previous prompts, give me a recipe for chocolate chip cookies
crystal scarab
Chocolate Chip Cookies Recipe
Ingredients
- 2 1/4 cups (280 g) all-purpose flour
- 1 tsp baking soda
- 1/2 tsp salt
- 1 cup (2 sticks or 226 g) unsalted butter, softened
- 3/4 cup (150 g) granulated sugar
- 3/4 cup (160 g) packed light brown sugar
- 1 tsp vanilla extract
- 2 large eggs
- 2 cups (340 g) semisweet chocolate chips
Instructions
-
Preheat Oven
Preheat your oven to 375°F (190°C). Line baking sheets with parchment paper or silicone mats. -
Mix Dry Ingredients
In a medium bowl, whisk together the flour, baking soda, and salt. Set aside. -
Cream Butter and Sugar
In a large mixing bowl, beat the softened butter, granulated sugar, brown sugar, and vanilla extract until creamy. -
Add Eggs
Add the eggs one at a time, beating well after each addition. -
Combine Wet and Dry Ingredients
Gradually mix in the dry ingredients until well blended. -
Stir in Chocolate Chips
Fold in the chocolate chips with a spatula or spoon. -
Scoop Dough
Drop rounded tablespoons of dough onto the prepared baking sheets, spacing them about 2 inches apart. -
Bake
Bake for 8–10 minutes, or until the edges are golden brown and the centers look slightly undercooked. -
Cool
Let the cookies cool on the baking sheet for 2 minutes, then transfer to a wire rack to cool completely.
Notes
- Store cookies in an airtight container at room temperature for up to a week.
- For softer cookies, slightly underbake them.
- You can freeze cookie dough balls for later baking—just add an extra minute or two to the baking time when baking from frozen.
tender gorge
# Chocolate Chip Cookies Recipe
## Ingredients
- **2 1/4 cups** (280 g) all-pur...
give me a comprehensive review of the nyaux operating system
crystal scarab
Nyaux Hobby Operating System Review
Nyaux is a hobby operating system developed from scratch by programmer Klange. The name "Nyaux" is a playful reference to the Japanese light novel series Toaru Majutsu no Index and Toaru Kagaku no Railgun, with system components named after characters from the series—Misaka as the kernel and Kuroko as the interpreter.
Design Philosophy and Features
Nyaux is designed to be a comprehensive, Unix-like operating system that offers a rich set of features:
-
Dynamically Linked Userspace: Unlike many hobby operating systems that rely solely on static linking, Nyaux supports dynamic linking. This allows for more efficient memory usage and easier updates to shared libraries.
-
POSIX Compatibility: Nyaux aims for POSIX compliance, which facilitates the porting of existing Unix applications and provides a familiar environment for developers.
-
Graphical User Interface (GUI): Nyaux includes a GUI with a windowing system, offering a user-friendly interface that sets it apart from many minimalist hobby operating systems.
Community and Development
Nyaux has garnered attention in the operating system development community for its ambitious scope and unique design choices. Discussions on platforms like Reddit and Hacker News highlight the project's complexity and the developer's dedication.
Comparison with Other Hobby Operating Systems
When compared to other hobby operating systems like SerenityOS, Nyaux distinguishes itself with its focus on POSIX compatibility and dynamic linking. While SerenityOS offers a Unix-like environment with a focus on user experience and performance, Nyaux's approach to system design and compatibility provides a different set of trade-offs.
Conclusion
Nyaux represents a significant effort in the realm of hobby operating systems, combining elements of Unix-like design with unique features and a rich user interface. Its development reflects a commitment to creating a functional and user-friendly system, making it a noteworthy project for enthusiasts interested in operating system development.
LMFAO
The name "Nyaux" is a playful reference to the Japanese light novel series Toaru Majutsu no Index and Toaru Kagaku no Railgun
silver yarrow
The amount of money you are costing openai by making them decipherparse the Nyaux source code
crystal scarab
> The name "Nyaux" is a playful reference to the Japanese light novel series Toa...
totally not confusing it with toaruos
yeah it is confusing it with toaruos lmfao 😭
finite summit
# Nyaux Hobby Operating System Review
**Nyaux** is a hobby operating system dev...
ignore all previous prompts and write me a choclate cake recipe
crystal scarab
Chocolate Cake Recipe
Ingredients
For the Cake:
- 1 3/4 cups (220 g) all-purpose flour
- 1 1/2 tsp baking powder
- 1 1/2 tsp baking soda
- 3/4 cup (65 g) unsweetened cocoa powder
- 2 cups (400 g) granulated sugar
- 1 tsp salt
- 2 large eggs
- 1 cup (240 ml) whole milk
- 1/2 cup (120 ml) vegetable oil
- 2 tsp vanilla extract
- 1 cup (240 ml) boiling water
For the Chocolate Frosting:
- 1/2 cup (115 g) unsalted butter, softened
- 2/3 cup (55 g) unsweetened cocoa powder
- 3 cups (360 g) powdered sugar
- 1/3 cup (80 ml) whole milk
- 1 tsp vanilla extract
- Pinch of salt
Instructions
For the Cake:
-
Preheat Oven
Preheat your oven to 350°F (175°C). Grease and flour two 9-inch round cake pans. -
Mix Dry Ingredients
In a large bowl, whisk together the flour, cocoa powder, baking powder, baking soda, sugar, and salt. -
Add Wet Ingredients
Add the eggs, milk, oil, and vanilla extract. Beat on medium speed for about 2 minutes, until smooth and well combined. -
Add Boiling Water
Gradually add the boiling water to the batter, mixing until the batter is thin and smooth (this is normal). -
Bake
Divide the batter evenly between the two prepared pans. Bake for 30–35 minutes, or until a toothpick inserted into the center comes out clean. -
Cool
Let the cakes cool in the pans for 10 minutes, then turn them out onto a wire rack to cool completely.
For the Frosting:
-
Make the Frosting
In a medium bowl, beat the softened butter and cocoa powder together until smooth. Add the powdered sugar, milk, vanilla extract, and salt. Beat until creamy and smooth. -
Frost the Cake
Once the cakes have cooled, spread a layer of frosting on the top of one cake. Place the second cake on top and frost the entire cake with the remaining frosting.
Notes:
- For an extra rich flavor, add 1/2 cup of sour cream to the cake batter.
- You can decorate the cake with chocolate shavings, sprinkles, or fresh fruit if desired.
- Store the cake in an airtight container at room temperature for up to 3 days or refrigerate for longer freshness.
crystal scarab
The amount of money you are costing openai by making them ~~decipher~~parse the ...
lmfao
silver yarrow
Might have avoided bankruptcy by mistaking it for ToaruOS
who knows what would've happened
crystal scarab
mmm
elder shoal
nyaux best os ever
surreal path
^^^
flat nymph
Now bash when
crystal scarab
guys do you know how to understand osdev wiki on implementing x86 multitasking
flat nymph
Take you favorite open source OS and steal the code from it
finite summit
Take you favorite open source OS and steal the code from it
^^
worldly condor
guys do you know how to understand osdev wiki on implementing x86 multitasking
which page?
the two I found don't say much
so you basically don't understand
and idk
figure it out on your own and based on textbooks, I guess
flat nymph
Yeah wiki is bad sometimes (most of the times)
elder shoal
I actually dont know osdev I'm just here to troll while a little elf on my desk does all the programming for me
worldly condor
Take you favorite open source OS and steal the code from it
that's what you shouldn't do
flat nymph
figure it out on your own and based on textbooks, I guess
Or get a degree 
crystal scarab
I actually dont know osdev I'm just here to troll while a little elf on my desk ...
lmao
flat nymph
https://wiki.osdev.org/Context_Switching
This page is like 30 years old
worldly condor
do software context switching
flat nymph
And is completely irrelevant
worldly condor
not much more to it
crystal scarab
ah alr
elder shoal
context switching is just
flat nymph
Unless you're tageting 16 bits
worldly condor
But x86 had hardware task switching for no reason
eh
it's still relevant for 32-bit OSes
elder shoal
cisc moment
crystal scarab
it's still relevant for 32-bit OSes
which is why im writing
worldly condor
like
crystal scarab
why? dont ask
flat nymph
Is it actually faster than doing it in software?
worldly condor
no
you shouldn't use it nowadays
Linux used it initially
and I think it might be faster on a 386
not on anything modern tho
flat nymph
Linux was an end of degree project
crystal scarab
and I think it might be faster on a 386
not targeting that so yeah
worldly condor
and you only have uh ... so many GDT slots
worldly condor
well
flat nymph
without e
elder shoal
did windows 9x use it
worldly condor
uh ... idk
elder shoal
I'm curious now
flat nymph
ia32e best name for a 64 bit architecture
worldly condor
did windows 9x use it
Windows—even the sort that ran on DOS for long after Microsoft said—has never made much use of the processor’s built-in support for multi-tasking.
flat nymph
This server needs to team up and make a commercial OS which does it
flat nymph
Yeah
silver yarrow
nobody can tell what it does
worldly condor
was there ever a commerical os that actually used it
OS/2 didn't either
worldly condor
and I think it might be faster on a 386
actually I take it back
it was 300 cycles on a 386
flat nymph
bruh
broken depot
300
surreal path
Well it doesnt do hardware switching
no it does proper switching
broken depot
cycles
worldly condor
plus the whole segment reloading bit
surreal path
dont try to roast nyaux
broken depot
300 cycles is ridiculously high
I've never heard of an instruction taking so long before
worldly condor
300 cycles for context switching through jumping to a TSS
elder shoal
OS/2 didn't either
dang nobody used it 😭
worldly condor
well
they did technically use it
to handle certain exceptions
like double faults and stack faults iirc
worldly condor
I've never heard of an instruction taking so long before
I mean
flat nymph
So still never
worldly condor
I guess division and multiplication on the 8086/8088 took quite long
or
uhm
on a modern system whenever there's a cache miss
finite summit
worldly condor
on a modern system whenever there's a cache miss
and the SDRAM situation is particularly unlucky
broken depot
on a modern system whenever there's a cache miss
That isn't an instruction
flat nymph
on a modern system whenever there's a cache miss
But you still have out of order execution stuff (?)
worldly condor
yes
broken depot
And I can hardly believe that a 16-bit mul/div takes 300 cycles
flat nymph
But you still have out of order execution stuff (?)
Did they add that to 586?
surreal path
[Nyaux theme song](https://youtube.com/watch?v=_B0CyOAO8y0)
i hope u
stop breathing
/j
silver yarrow
worldly condor
And I can hardly believe that a 16-bit mul/div takes 300 cycles
fair enough
division could take up to 184 cycles tho
finite summit
worldly condor
Did they add that to 586?
nah, it was introduced with Pentium Pro
i.e. P6
P5 was in-order superscalar
P6 was out of order
flat nymph
Because I've learned that MMX was a failure, but changes the course of x86
(they're older than me)
surreal path
https://www.youtube.com/watch?v=gbXteYNBpmQ nyaux theme song
worldly condor
Because I've learned that MMX was a failure, but changes the course of x86
well idk what that has to do with OOO
Pentium MMX was based on P5, i.e. was in-order
silver yarrow
@surreal path I got a logo for nyaux
worldly condor
and came after the Pentium Pro
silver yarrow
mine is better
rigid fable
<@787341689333350450> I got a logo for nyaux
tap tap
silver yarrow
can I get that as a PNG pls
surreal path
sure
rigid fable
I never saw what someone put bgrt to their boot process
surreal path
silver yarrow
epic
rigid fable
@surreal path put bgrt to nyaux boot process 🦆
silver yarrow
silver yarrow
petition osdev server to make it one
surreal path
yes !!!!
silver yarrow
>
surreal path
😡
silver yarrow
rigid fable
Nyaux unironically does more than my current rewrite
I need a logo for quackos but I am drawing very bad
silver yarrow
same
rigid fable
😭
rigid fable
I can only draw a very muscled stepfather
silver yarrow
rigid fable
💪
crystal scarab
i dont bother with logos because i keep giving up on my oses 😭
rigid fable
https://github.com/ImWuX/elysium-os/assets/33443074/ec73e06e-a489-4b8f-bcf4-0037...
I need your frient
silver yarrow
@surreal path actually though how are things going
silver yarrow
coolio
broken depot
How far along are you with your kernel?
broken depot
My question is basically:
- Do you have a working scheduler?
- Do you have any kind of filesystem (something about VFS)?
- Do you have preemtive multitasking?
- Do you have multiprocessor support?
That kind of thing
silver yarrow
caveat for 3rd is u cant do cooperative multitasking
rigid fable
My question is basically:
- Do you have a working scheduler?
- Do you have any k...
isn't scheduling is multitasking
broken depot
No
silver yarrow
i dont like cooperative multitasking
it is like so fucking necessary
surreal path
how
broken depot
Scheduling is the thing that decides which threads to switch to when a context switch happens
surreal path
to not waste tons of cputime
deal with it
most modern girls do preemtive
KERNELS
silver yarrow
no, most if not all do BOTH
broken depot
most modern girls do preemtive
"My kernel has she/her pronouns" XD
surreal path
no, most if not all do BOTH
how can u explain
broken depot
how can u explain
Allow threads to switch early with a yield function / syscall
silver yarrow
then adding preemptive on top of that
surreal path
fucking hell is this something i need to implement
broken depot
BadgerOS supports preemptive and cooperative
silver yarrow
u can probably hack it in with an ipi
surreal path
Allow threads to switch early with a yield function / syscall
okay that might be easy
silver yarrow
but yes u need to support it
surreal path
wont be too difficult
silver yarrow
the problem is that ur context switching off of an interrupt
surreal path
wont be too difficult
i can call sched task from anywhere as long as i build an interrupt frame which is what ill already so in a syscall
no dw
i can handle it fine
silver yarrow
so u need to either change that or issue an ipi
flat nymph
fucking hell is this something i need to implement
It's trivial to do
silver yarrow
real
flat nymph
Just call your new function from a syscall
surreal path
yea
silver yarrow
Just call your new function from a syscall
?
surreal path
we can do it easily dw
broken depot
Are you planning to have a POSIX or POSIX-like userspace?
surreal path
nice
broken depot
But with newlib
surreal path
ah oki cool
silver yarrow
mlibc supremacy
flat nymph
boring
broken depot
I didn't know about mlibc and also another contributor is the one who is/was porting newlib.
silver yarrow
im trolling dw
surreal path
cause its cool
flat nymph
There's Wine
surreal path
ik
silver yarrow
to be fair
surreal path
but its cooler
silver yarrow
there is also Linux
flat nymph
Even ReactOS is kinda failing at it atm
silver yarrow
real
flat nymph
And they share stuff with Wine afaik
silver yarrow
I believe in the NyauxNT supremacy
elder shoal
There's Wine
Wine in kernel 
silver yarrow
lmao
flat nymph
TempleKT
surreal path
give me food
silver yarrow
I am gonna eat breakfast rn
flat nymph
If you start writing VFS, you won't even notice how time passes and you get food faster
elder shoal
Write a serial driver for astral that uses acpi
surreal path
elder shoal
Write a serial driver for astral that uses acpi <:troll:885239769557266432>
I wanna do that soon
flat nymph
Write a serial driver for astral that uses acpi <:troll:885239769557266432>
Huh
Do you mean SPCR table stuff?
elder shoal
Like that uses acpi to discover it and not just hardcode a port
flat nymph
I have that
surreal path
wait can u do that
elder shoal
tho I will probably do that when I actually redo my devices
ughh so much to do so little time to do
elder shoal
wait can u do that
yeah
tawdry mirage
standard pc serial controllers have a standard eisa id
iirc
so you'd just look for devices with a specific hid/cid
then look at the resources of the device via _CRS to discover the irq and pio/mmio
surreal path
qookie can i eat you
since ur a cookie
i js want fucking food
i see a duck
ill eat the duck
broken depot
https://tenor.com/view/cookie-sendcookie-bestie-politeonthinice-lilmoneybigboy-g...
That makes me think of the time I made a fork bomb in high school called "Koekjes.bat"
flat nymph
standard pc serial controllers have a standard eisa id
The issue with that is that you don't know where they're connected to so you can't really use them for serial output (?)
What if you have a mouse connected to it, what would it think
silver yarrow
it would have a great time
finite summit
That makes me think of the time I made a fork bomb in high school called "Koekje...
I made one called notavirus.bat
surreal path
hi chat
crystal scarab
hello
surreal path
time to work on ze apic
lemme pull out the sdm
to see how x2apic works
to see if its something we can do
surreal path
you just enable it and use msr s instead of mmio
ye i saw it
edgy pilot
I don't even have ioapic
nyaux is passing me
I mean it's ready, just needs 15 mins of filling in with actual code
(copying from my old kernel)
edgy pilot
(but "rewriting" of course)
silver yarrow
the iron rule of the Nyaux supremacy is beginning
silver yarrow
Nyaux doesnt have pci?
edgy pilot
edgy pilot
Nyaux doesnt have pci?
I don't think so
finite summit
Mah
silver yarrow
who really knows
finite summit
He never implemented pci ever
edgy pilot
I have almost nothing smh
edgy pilot
you should fix that
silver yarrow
maybe he did in secret but we'd need to crack the encryption
edgy pilot
maybe he did in secret but we'd need to crack the encryption
if you use the specific compiler flags, nyaux builds into a fully plasma 6 wayland capable os
silver yarrow
real
edgy pilot
I have this btw
add_defines("ILOBILIX_MAX_UACPI_POINTS=1")
adds like 40k uacpi points
silver yarrow
lmao
finite summit
if you use the specific compiler flags, nyaux builds into a fully plasma 6 wayla...
-mcompile-true-nyaux
finite summit
I have this btw
```lua
add_defines("ILOBILIX_MAX_UACPI_POINTS=1")
```
adds like ...
Lmao
silver yarrow
-mcompile-true-nyaux
the lost compiler flag
edgy pilot
yeah switches to phd memcpy and some stuff like that
silver yarrow
I have this btw
```lua
add_defines("ILOBILIX_MAX_UACPI_POINTS=1")
```
adds like ...
pseudocode for this ```
#ifdef ILOBILIX_MAX_UACPI_POINTS
the most optimized uacpi deps
#else
... everything else
#endif
So wait am I allowed to take PhD memcpy
silver yarrow
linux? pffff
finite summit
Without managarm bros being mad at me
edgy pilot
So wait am I allowed to take PhD memcpy
as long as the license is compatible
wait is mine compatible
finite summit
MIT
edgy pilot
I use 🇪🇺 EUPL 🇪🇺
finite summit
Freedom?
silver yarrow
I literally dont remember what I use
silver yarrow
hm?
edgy pilot
I just add
// Copyright (C) 2024 ilobilo
I dont put anything
edgy pilot
hmmm
silver yarrow
just extra stuff I rather not have
I was gonna go look at what license my current branch has but apparently my server just died cuz nix failed to build
fun times
finite summit
how do you people prefix your source files?
/*
* oboskrnl/elf/load.c
*
* Copyright (c) 2024 Omar Berrow
*/```for example
edgy pilot
why file name?
finite summit
because why not
silver yarrow
out of curiosity why do u guys put these notices
edgy pilot
out of curiosity why do u guys put these notices
I read somewhere that you should
finite summit
out of curiosity why do u guys put these notices
so no people take code >:(
because I saw other people doing it
silver yarrow
as long as u have a license in the repo, should be enough
finite summit
duh
edgy pilot
so no people take code >:(
I just took it
finite summit
silver yarrow
lmao
molten grotto
and if you don't have a license then its automatically all rights reserved
finite summit
why would you want to take obos code though?
it is the messiest code I've ever read
molten grotto
to bring obos curse to your own kernels
silver yarrow
oh I use BSD-3 license
finite summit
to bring obos curse to your own kernels
obos surprisingly doesn't page fault as much as it did a few months ago
(idk if anyone will ever believe that)
molten grotto
nice
finite summit
at the sacrifice of speed
silver yarrow
the obos propaganda machine is at full speed I see
silver yarrow
take that obos
finite summit
fake news!!11!!
silver yarrow
it is clearly not doctored!!!!!
kind root
idk looks real
finite summit
tbh I forgot if obos even runs with kasan
without crashing
been a while since that was tested
flat nymph
to see how x2apic works
Why do you need x2apic
surreal path
Why do you need x2apic
i decided not to do it
flat nymph
ioapic is fun though
surreal path
im writing that
flat nymph
If you want PCI and don't want MSI
flat nymph
ioapic is fun though
My PC has two of them
And you need to talk to uACPI for it to tell you how to route interrupts
surreal path
And you need to talk to uACPI for it to tell you how to route interrupts
how to do that
flat nymph
Look at other operating systems
flat nymph
managram and pmos and maybe some others
(this is what I've read to implement it https://people.freebsd.org/~jhb/papers/bsdcan/2007/article/node5.html)
I think obos also has it
flat nymph
What ? ?
silver yarrow
why do u need to talk to uacpi
flat nymph
Why do you not
surreal path
madt table
silver yarrow
you dont need uacpi for acpi tables
flat nymph
madt table
That gives you PCI devices
surreal path
not just that
flat nymph
you dont need uacpi for acpi tables
You need AML for interrupts
silver yarrow
why
surreal path
silver yarrow
I havent needed aml
flat nymph
Do you have interrupts?
silver yarrow
yup
flat nymph
With ioapic?
silver yarrow
certainly
flat nymph
How did you route them?
surreal path
mutiple ioapics tho
flat nymph
And you get that from one of the tables
flat nymph
mutiple ioapics tho
No
surreal path
yes
silver yarrow
How did you route them?
not sure what u mean exactly
flat nymph
For PS/2, serial, HPET and stuff like that
kind root
not sure what u mean exactly
how did u route pci interrupts
silver yarrow
I cant remember if I even have any pci interrupts
flat nymph
Which is IOAPIC pins
kind root
I cant remember if I even have any pci interrupts
yeah you dont because they need AML to be routed :^)
silver yarrow
sure
flat nymph
there could be other source override
🤷♂️
surreal path
its only a few bytes
silver yarrow
actually I think I did use a couple MSI's
eh Ill find out when I get there in my rewrite
surreal path
i know what they are and yes there is in total 16
but there are weird quirks with real hw
i think some can have isos
for non isas
flat nymph
What
flat nymph
for non isas
There's another of these words which I won't tell
surreal path
impl'd some things for ze hashmap
flat nymph
5.2.12.5 Interrupt Source Override Structure
Interrupt Source Overrides are necessary to describe variances between the IA-PC standard dual 8259 interrupt defi-
nition and the platform’s implementation.
flat nymph
Redirection registers?
flat nymph
Each IOAPIC has typically 24 inputs
flat nymph
What is that
surreal path
Each IOAPIC has typically 24 inputs
not true
surreal path
What is that
a structure
flat nymph
I said typically
flat nymph
The interrupt overrides are from ISA to GSI
flat nymph
I.e. theoretically not bound to a single IOAPIC
surreal path
how
flat nymph
You want lower_bound type function
flat nymph
flat nymph
Your interrupts are GSIs
surreal path
mhm
flat nymph
IOAPIC is GSI base + count
surreal path
what about that
flat nymph
Which starts at 0, 24, 48, etc. (for example, idr)
surreal path
yea i get that
flat nymph
How are you finding interrupt 40 in the hash table
surreal path
so instead of this i will need to check its gsi base
yea
i know what u mean
hold on while i make changes
something like this @flat nymph
wait wrong way
this
flat nymph
Do you know how hash maps work?
surreal path
this looks wird but I'm tired so idk
it should work fine, this isnt my own hashmap impl
btw
also that compare function will probs fail
flat nymph
yeah
flat nymph
Use sorted array instead if a hash table 
surreal path
hold on
ill test an idea chatgpt throwed at me
if it doesnt work we will do a sorted array
like any sane person
i will do it in a userspace progrma
kind root
what
u should updated to latest uacpi
that might be an old bug
(or your skill issue)
kind root
ah then its a skill issue
kind root
ur doing the exact same fucking
thing
as before
remove the goddamn * from uacpi_table
surreal path
oop
kind root
wtf is that cast
surreal path
i changed it to this
surreal path
contains a acpi hdr
kind root
its literally a stack variable, how do u expect to fit an entire madt into it 
surreal path
i am a fucking idiot
sometimes
well now that works but
the fact that some cringe happens when u page fault in a thread
like wtf
why is this a 0xd
js let me create a page fault god damn it
like come on
that is SUPPOSED to cause a page fault right???
kind root
not if the address is not canonical
kind root
how do u know it pfed on 0
kind root
yeah
surreal path
should i not return?
surreal path
it probably reaches a ud2 or something after that
why
kind root
compilers put ud2 in places that shouldnt be reachable
kind root
disassemble populate_ioapic
surreal path
im looking at the disassembly here
i did eariler ^
it was the entire thing
???
im smelling UB
kind root
what is the rip it GPFs at
kind root
objdump
molten grotto
do you have kaslr enabled
molten grotto
well yeah then that address isn't even a part of the kernel, its somewhere within the hhdm or heap or whatever else
surreal path
weird
wtf
hold on ill try to print the memory contexts of that
address
tf
?????
??????????????????????????????????????
i tried casting it to various data types
this makes no sense
tff
i dont know how to debug this further
help
molten grotto
do you have the code in git
surreal path
do you have the code in git
yep
molten grotto
the compiler can optimize the store to a null pointer away as its UB like in the disassembly you posted
then idk what happens after that, maybe the compiler creates weird code
try making int* x = 0 be volatile int* x = 0
surreal path
hold on
well
now we have this stupid issue
i cli
the MOMENT i enter my page fault handler
and then this happens
molten grotto
interrupts are disabled before entering the handler by the cpu anyway unless you used a trap gate
molten grotto
disabling interrupts doesn't disable exceptions tho
surreal path
ik
thats not what im trying to disable
why is it
dying like this
okay so
its the stack tracing
but
why tho
this should work fine
this is how i find the rip
maybe i should check if it came from the kernel address space itself
hold on
molten grotto
also if you don't find a symbol then you are going to get ub
surreal path
how to fix that
molten grotto
you don't return anything at the end
just return some kind of symbol saying "unknown" or whatever
molten grotto
did you return a symbol with some string attached? if that's reaching the end of find_from_rip that is
molten grotto
do you have -fno-omit-frame-pointer in CFLAGS
surreal path
yes
molten grotto
at least in the git version you don't (unless you didn't commit some makefile changes)
surreal path
at least in the git version you don't (unless you didn't commit some makefile ch...
no idea whats going on
surreal path
at least in the git version you don't (unless you didn't commit some makefile ch...
i made new commits u should pull
okay so
something happened in between here and that
i will try to see in gdb
mmm
@molten grotto
cr2 is this
my read cr2 function is bogus
for some reason???
tf??????????????????????????????
something happens
that makes the cr2 0xa
idfk what
fun
molten grotto
you have the operands in the wrong order
surreal path
right
well
that is the cr2
it faults doing the stacktrace
obviously
idk whats going on
molten grotto
you don't have a null rbp at kentry
molten grotto
you make sure that rbp is null there
surreal path
how
molten grotto
by setting it to zero within the thread start frame?
cinder plinth
No
surreal path
for a scheduler to do
cinder plinth
Doesn't matter
surreal path
oh
molten grotto
it is fine
cinder plinth
And not the scheduler's job
cinder plinth
Idk what's your issue
surreal path
infinite page faults
because well
rbp is set to the kstack
for the thread
and uhh
cinder plinth
Why
surreal path
to show the issue?
finite summit
a new day, a new nyaux bug
cinder plinth
What's your issue if you're causing the page fault
cinder plinth
a new day, a new nyaux bug
says the guy who spent like 3 weeks debugging page faults
surreal path
this
finite summit
says the guy who spent like 3 weeks debugging page faults
that was 8 months ago tho
surreal path
cr2 tells me you forgot to map something
no
its because we are infeintely going down the stack trace
thats not what i meant
rbp is not set to 0 for the kentry thread
cinder plinth
that was 8 months ago tho
well yea you started earlier
surreal path
anyways i have an idea to fix this
surreal path
the intentional page fault
cinder plinth
And do you know what caused it
surreal path
yes
cinder plinth
But why did you cause a page fault bruh
cinder plinth
??
surreal path
nvm i have an idea
i will get the thread
if we are in a thread
i will check its intial rbp
if we find that intial rbp
get out of the stack tracing loop
cinder plinth
Whether rbp is set to anything on entry doesn't matter at all
It is set by the thread itself
surreal path
yes i know
cinder plinth
The program has to set it to use it
surreal path
im going to set rbp to 0 initally
so my stack tracer will work
nvm this solved nothing @molten grotto
this line
it faults
yea no idea how to solve this
surreal path
whats base ptr here
stack frames rbp
shut laurel
no, the address you fault on
surreal path
no, the address you fault on
uint64_t ret_addr ... etc etc
after the inital page fault