Nyaux

[surreal path]

but i already realized the issue

was to why we page fault

its a stupid issue really

on sched_yield i never push the userspace regs

i just assume its already been done

therefore im corrupting the stack

[rigid fable]

@surreal path is it true what nyaux supports 64 bit hpet ????!!?!!!

[surreal path]

it supports both 32 bit and 64 bit hpet now

[surreal path]

@kind root you would agree this is pretty dumb correct

[molten grotto]

only thing you have to be careful with 32-bit hpet is overflow

[surreal path]

yea i think i solved that

[molten grotto]

I wonder how do you even solve that, I haven't really though about it

[surreal path]

just a bunch of if statements

read src lol

[molten grotto]

like if the counter wraps around every 7 minutes or whatever (with 10mhz) and a thread sleeps for 8 minutes

[surreal path]

wha

i dont have thread sleeping yet

[molten grotto]

yeah you don't but its something that I am not completely sure how do you solve

[surreal path]

anyways u would agree this probs caused the issue

[molten grotto]

if you don't save them somewhere else like an interrupt frame then probably

[surreal path]

yep

and also i still dont understand @flat nymph thing he found that is an issue

or well with my design

ill have to ask him more questions on that in the meantime

im wayyyyy too hurt to work my finger hurts typing this

😭

[kind root]

looks like a normal bug

[molten grotto]

actually nvm, I guess you just install an irq and then you keep some kind of 64-bit offset to which you add the current counter value when reading and when you get a wrap irq you increment that by UINT32_MAX?

In non-periodic mode, the OS programs one of timer's comparator registers with value of main counter that is to trigger an interrupt. If the timer is set to 32 bit mode, it will also generate an interrupt when the counter wraps around.

[elder shoal]

Yeah I just use an irq for 32 bit hpet

[rigid fable]

omg

now i can test nyaux on my pc !!!

[surreal path]

yes

anyways i think ill be good on saturday to work my arm and leg are feeling better

im taking off the plasters and like

the um

wounds look pretty bad

😭

[surreal path]

if we are lucky maybe friday

however fast my body decides to heal

im still in pain sadly

[rigid fable]

@surreal path can you say what hpet you supported earlier

[plush hearth]

What did you do?

[rigid fable]

poor nyaux

[surreal path]

something rlly bad

i took off most of the plasters

the wounds look worse then i thought

thought they were scrapes or smt

but they are like

ew

i dont even wanna describe it

its good tho we will do work after i sleep

i know how to fix the yk what

[surreal path]

since in saturday

and its been nearly a week

[plush hearth]

I meant like how did you hurt yourself

[tender gorge]

It'll be alright

[surreal path]

fell off my scooter while traveling at a really fast speed

my bad

was sleeping

btw

i promise u monday i cannot do today or tmrw its my brothers birhtday and my dads not letting me use my laptop because im always on my laptop on the birthdays and hes mad abt that

monday tho i SWEAR

no excuses

hold me accountable for monday, monday is where ill fix most things and get started on the vfs after fixing the issues with the kernel mutex

[plush hearth]

I understand why you were (are?) in pain then. You are lucky you didn't break anything

[surreal path]

yea still in pain

im lucky yea

[surreal path]

if i dont do monday ban me

:^)

[surreal path]

32 bit and 64 bit

[plush hearth]

Your sleep schedule really is a mess. I've just woke up, and I'm 10 or 11 hours ahead of you (UTC+11)

[surreal path]

yea

😭

even my gf is mad about it

[plush hearth]

You could fix it

The simplest way is just to stay up until a reasonable bed time tomorrow for you

[surreal path]

i cant

legit cant

lol

[plush hearth]

The other option is to slowly improve it by going to bed later and later over time until you get to a normal time

You can

[surreal path]

im good

[surreal path]

thank you :)

[rigid fable]

who ping

[surreal path]

hi chat

lets work on

nyaux!!

[rigid fable]

https://cdn.discordapp.com/attachments/1228468065633570967/1242186939227050026/ezgif.com-animated-gif-maker.gif

its osdev transformation

[surreal path]

bru

[surreal path]

yo i have been debugging this for a while

things are weird

there is a bug where it dies on push into list??

like

i made sched yield actually have the threads registers before calling schedd

save*

like

the behavior is so weird

i couldnt figure it out

but ill keep trying to

[surreal path]

well

not just that

usually it still dies

idk its weird

[surreal path]

legit no idea whats going on

now its not even doing that anymore\

idk

this shit weird

;no

[flat nymph]

fix your sleep schedule

[surreal path]

no

[surreal path]

wtf

this is one of the behaviors

its mostly consisent

no idea whats causing it tho

at all

[finite summit]

lesgo nyaux development is back

!!!

[surreal path]

yesss

[flat nymph]

locks skill issue (?)

[surreal path]

how

HOW

i changed how i do scheduling

from putting it on the kstack to

putting the frame on the thread itself

:(((

global sched_yield
extern schedd
global load_ctx
global save_ctx
extern memcpy
save_ctx: ; (new frame in rdi, old frame in rsi)
    test rsi, rsi
    je .escape
    mov rdx, 176
    call memcpy
    .escape:
    ret
load_ctx:
    mov rsp, rdi
    add rsp, 8
    pop r15
    pop r14
    pop r13
    pop r12
    pop r11
    pop r10
    pop r9
    pop r8
    pop rdi
    pop rsi
    pop rdx
    pop rcx
    pop rbx
    pop rax
    pop rbp
    add rsp, 8
    iretq
sched_yield:
    mov ax, ss
    push ax
    push rsp
    pushf
    lea rax, [rsp+8]
    mov ax, cs
    push ax
    push rax
    push rbp
    push rax
    push rbx
    push rcx
    push rdx
    push rsi
    push rdi
    push r8
    push r9
    push r10
    push r11
    push r12
    push r13
    push r14
    push r15
    push qword 0

    ; push gs                  ; Save previous state of segment registers
    ; push fs
    mov rdi, rsp
    call schedd

my code

[rigid fable]

I think you should also xor rbp,rbp

[surreal path]

bru

still not figuring it out

[surreal path]

sigma sigma boy sigma boy

hi guys im awake

i slept at 6am

[surreal path]

why

[rigid fable]

why not

[surreal path]

bru

[surreal path]

hi i keep sleeping

im still eepy

[surreal path]

yoyo after i eat in like an hour

we will get back to debugging

[surreal path]

okok

we back

[surreal path]

this is a struggle to debug im going to be straight honest

i need to proof read the code ig

for ze scheduler at least

[surreal path]

i have to sleep now cause i have an appointment tomrrow

[surreal path]

no im awake

no

no im not giving up

never i will never EVER give up on nyaux

i just found out somethings up with the context switching itself

its going back to the same instruction

and repeating it

so our saving context is not working?

i believe this is where our issue lies

everyone is asleep

😭

[thorn bramble]

memcpy is crazy

[surreal path]

whats wrong with memcpy chat

[thorn bramble]

nothing

just

an Interesting way to accomplish the task

that's exactly what a C compiler would do

[surreal path]

bad way?

[thorn bramble]

any particular reason

this isn't written in C?

[thorn bramble]

.

so no, not bad

but the magic numbers go crazy

or rather one magic number

i know what it is im js

[surreal path]

nahnah i get you

its good man dw

[thorn bramble]

so what doesn't work today

i am not keeping up at all with this thread

[surreal path]

kernel mutex and the context saving

[thorn bramble]

or any other thread

[surreal path]

kernel mutex is a difficult one sinec its a race condition

its hard to catch

[thorn bramble]

interesting

i'm not good at that so good luck i won't be able to help

[surreal path]

its okay dw

[kind root]

hows nyaux

[surreal path]

umm

well

struggling on a bug with context switching

specifally conterxt saving

to which im not finding out ze issue

im afraid

[kind root]

find it 😡

I had a dumb uacpi bug yesterday

val = func() | func() << 8

[surreal path]

lmao

[surreal path]

im trying

[surreal path]

"small nap"

famous last words

i just fucking woke up now

[surreal path]

okay

that is very weird

@finite summit

yo

heyyy

how are you

[finite summit]

hi

good

alhamdulillah

[surreal path]

yea fair 😭

[finite summit]

yeah idk what's happening

with ur bug

[surreal path]

me either

how long have we been having this bug now

a day

ig

so i have to keep debugging

more

if my debug skills are gonna be improved i gotta do this for a few days

before asking for help

if i dont find it on friday or whatever ill ask for help

anyways

@finite summit wanna watch me live stream debugging nyaux?

in #voice-0

[finite summit]

going to sleep

in a few minutes

[surreal path]

ahhhh fairrr

[finite summit]

after cleaning up the receive code

[surreal path]

goodnight man

[finite summit]

gn

gl on your debugging

[surreal path]

thanks

i found ze issue

frame is unsued

unused

[finite summit]

lesgo

[surreal path]

💀

no

that wasnt the issue

this is the issue

memcpy takes 3 parameters as yall know

dest src and cnt

i have put the new frame as the destination

which is fucking stupid

💀

☠️

@finite summit no way right

[finite summit]

bru

[surreal path]

@thorn bramble thats insane isnt it

all fixed

well

not the kmutex

[thorn bramble]

cool stuff

good work

[surreal path]

thanks

but i gotta fix the kmutex

[thorn bramble]

u got this

[surreal path]

thanks man

yield is broken it seems

wait no

thats not yield

uh whats going on

gdb time

i may need to do this no 1

because i am corrupting other functions stacks

i need to do a mov rbp, rsp

as c is treating me like a function

shit

i have no idea

how to make this work

because id be overwriteing rbp

overwriting

ummm

what

[thorn bramble]

how tf can u use this terminal filter

i dont get it

[surreal path]

open windows terminal

[thorn bramble]

i know

[surreal path]

open ubuntu

[thorn bramble]

im js

i dont understand

[surreal path]

right click ubuntu

[thorn bramble]

how u can

BEAR IT

i know how to set it up

[surreal path]

oh

i like it

[thorn bramble]

i just couldn't

☠️

[surreal path]

fair

[surreal path]

maybe im misunderstanding something

im unsure

[thorn bramble]

yeah i like my text readable yk

yeah i think

why do you think

it's a problem

stack traces? or what

[surreal path]

cause

im being called by c

[thorn bramble]

so what

as long as you leave the stack in the same state as it was before leaving

you are fine

[surreal path]

i wont leave

sched yield wont leave

[thorn bramble]

why

you will eventually

return to where you yielded from

or maybe not

but in the case you will

yield has to return to the caller

[surreal path]

okay

but

i dont think this is correct for getting the rip

plus im overwriting rax

which i somehow shouldnt so this makes it so difficult cause like how am i gonna do anything without any registers

i have an idea

hacky but it works

[thorn bramble]

LMAO

epic

[surreal path]

no i didnt try it yet

💀

its 48 not 40

thats not the rip

💀

[thorn bramble]

like genuinely how do you read this

am i just blind

[surreal path]

yes

[thorn bramble]

fair enough

[surreal path]

thats also wrong

this is still wrong

ima take a break for like a short while

cause my head isnt there right now

good to know we fixed one bug today

just one more we need to fix today

well two if i can somehow figure out kmutex

today

what ze fuck

then the ffffffff is here

wtf

thought i was gonna take a break btw

but

nah

[surreal path]

ughhhhh

this is so hard to write

this is so hard

ughhhh

yea i need a break for a bit

cpu is trolling me i swear

[rigid fable]

maybe pmm error

a

I wrong read

[rigid fable]

what are you trying to do

[supple robin]

bro is doing it in asm

just call a c fn

[flat nymph]

why am I seeing you mess with segment registers

[surreal path]

when

[surreal path]

bro what

i need to push ze registers

was busy today

so didnt have time to check discord

[surreal path]

bro

ok im gonna be straight honest

i need to fix my sleep schedule

like

i REALLY

need to fix it

i will attempt to sleep early and wake up 2pm

not feeling like i wanna work on nyaux rn

will see in a bit

dont feel amazing

[surreal path]

fuck you im working on it

[tawdry mirage]

okay

[surreal path]

im questioning if i have to save the old rsp val too

looks like i have to worry about this too

[surreal path]

hate my life

im writing addresses down like a mad man

im losing it chat

[rigid fable]

what are you trying to do

[surreal path]

sched yield

im gonna throw myself out the window

for some reason the cpu isnt dereferencing rsp??

like BRO

[rigid fable]

and what you want this to do

[surreal path]

yield

[rigid fable]

why you using lea ?

with []

if you want to get a value in rsp + 8

just move it to rax mov rax,[rsp+8]

or just push it push qword [rsp+8]

[surreal path]

that solved that yes but

getting the old rsp value is giving me garbage

old rsp right

now its garbage

[rigid fable]

one question why you pushing these values

for what you need this

[surreal path]

to recreate a stackframe

to iretq later on

[rigid fable]

and how src looks

[surreal path]

global sched_yield
extern schedd
global load_ctx
global save_ctx
extern memcpy
save_ctx: ; (old frame in rdi, new frame in rsi)
    test rsi, rsi
    je .escape
    mov rdx, 176
    jmp memcpy
    .escape:
    ret
load_ctx:
    mov rsp, rdi
    add rsp, 8
    pop r15
    pop r14
    pop r13
    pop r12
    pop r11
    pop r10
    pop r9
    pop r8
    pop rdi
    pop rsi
    pop rdx
    pop rcx
    pop rbx
    pop rax
    pop rbp
    add rsp, 8
    iretq
sched_yield:
    push rsp ; old rsp val + 8
    push rax ; + 8
    push qword [rsp+16] ; + 8
    mov ax, ss
    push ax ; + 8
    
    push qword [rsp + 24] ; + 8
    pushf ; + 8
    ...

[odd flame]

🤷 idk either

also that terminal hurts to look at

[rigid fable]

how sched_yield called

like is it called by interrupt

[finite summit]

Are you a saxophone by chance?

[surreal path]

no

[odd flame]

yesn't

[rigid fable]

Are you calling sched_yield or jumping on it

[surreal path]

everyone sayas that

[surreal path]

calling from c

[cinder plinth]

tenor or alto

[odd flame]

makes sense

[odd flame]

the pfp is an alto

but i play the tenor

[rigid fable]

like if you call there is on stack new value

[odd flame]

how tf did you know

[cinder plinth]

how did I know what

[odd flame]

idk do you play the sax?

[cinder plinth]

i used to at school

tenor

[odd flame]

makes sense

[odd flame]

real

[cinder plinth]

i was literally coltrane

[rigid fable]

@surreal path can you comment on what exactly you are pushing

[surreal path]

wdym

im pushing a stackframe

my scheduler expects this

read function schedd

in src/sched/sched.c

[odd flame]

what the fuck

[rigid fable]

[rsp + 24] you are getting on it as a result of push rsp

in 34 line

also this adds,subs is bad

[surreal path]

all fixed now thanks to @thorn bramble 's help

[odd flame]

@thorn bramble basically quantum physics in a nutshell

everytime you look it's all good

[surreal path]

back to the kmutex bug we've been stuck on for nearly 2 weeks

i think it might be nyaux's best interest to move on from the kmutex bug and focus on other kernel things

yes kmutex doesnt work

yes we dont get schedule for work completion or any of the goodies therefore ec driver might shit on some hardware as @kind root said

but weve been on this for 2 weeks now

and kmutex isnt CRITICAL to the kernel

at least for the time being

yes even i feel shit about just leaving the kmutex bug

i will make a poll for this

[surreal path]

its a bug with the scheduler

[surreal path]

it seems not to be an issue of the run queue

it seems to be

something else entirely

context switching maybe

and the behavior is differetn each time

after a while it seems it just doesnt wanna execute code

wtf is going on

save context is broken it seems

it would explain all the weird shit that was going on

it wasnt a bug with kmutex

lets pull out gdb

what ze fuck

why is rip zero

in the old frame

what

rsi is the ne frame

new*

and the old frame

is the stackframe

[surreal path]

could it be an issue with sched yield

idfk

something really weird is going on

and then it doesnt even write it

like wtf

what

tf is it doing

oh

yea

makes sense

well ofc it would be

because

fucking

idk

[surreal path]

[plush hearth]

That jmp followed by a ret concerns me

[rigid fable]

you calling it from C code...

you need to call it from assembly

a wait

1. you don't need a memcpy in asm...

2.you jump to memcpy

it's bad idea

because you don't push RIP to return

so you need call memcpy

anyway do it in C

[molten grotto]

also I still have no idea why use an irq frame and iretq for context switch lol

[rigid fable]

iretq can change ss and cs

[molten grotto]

yeah but you don't need to do that in your sched switch

it can just switch between kernel mode threads

and then interrupts handle the actual returning to usermode

[rigid fable]

then what will be better than iretq ?

[molten grotto]

normal ret

and you only need to save callee saved regs to the stack inside sched switch in that case

[rigid fable]

how about rflags or can it be changed by other instructions ?

[molten grotto]

there are multiple ways to do scheduling ofc this is just one of them that I think works pretty well

[molten grotto]

yes if you need to save that for kernel threads you can pushfq popfq (though I can't think of any other reason than the interrupt enable state why you'd save it as all the condition flags etc the compiler assumes to not be preserved across function cal)

[molten grotto]

void timer_irq() {
    eoi();
    // switches to other thread
    sched_switch();

    // resumes here when this thread is resumed and does iretq to userspace from the irq stub that called this function
}

[flat nymph]

I have no clue what you're trying to do

[flat nymph]

Why

[flat nymph]

You're not supposed to do that

[surreal path]

cause for context switch

[surreal path]

yea but that causes issues

plus i was called

by c

so i should have the return address

so the ret should work

[surreal path]

i changed how i did it

[surreal path]

it just easier

[flat nymph]

it is not

[surreal path]

it is

also mishakov

im in ur walls

[flat nymph]

you're doing something weird

[surreal path]

how is it weird

like nah it isnt

its good

i js need to figure out why its shitting itself

[surreal path]

are u awake

wake up

[flat nymph]

🤷‍♂️

[surreal path]

im still in ur walls tho

i must spend time with my gf

then i will work on nyuax

[kind root]

is she back again

or is that a differnt one

[surreal path]

which

[cinder plinth]

I think different

[surreal path]

nah but seriously

its different ya

[cinder plinth]

bro is the rizzler

[kind root]

lol

[cinder plinth]

mogging us fr

[surreal path]

real

[kind root]

nyaux gets new gf evry week

insane

[surreal path]

nah but this girl is actually kinda obsessed with me

so i think

the relationship will last

i hope anyway

lets not jinx it

[kind root]

but no nyaux is unironically good looking so its understandable

[cinder plinth]

we can do a reverse correlation between OS working and gf

[kind root]

lol

[surreal path]

real

[surreal path]

yes

phd code = no maidens

[cinder plinth]

I think you can actually make a correlation lol

it probably doesnt have meaning

but it is a fun coincidence

[surreal path]

nyaux will work soon

™️

[cinder plinth]

at the end of the spectrum you have like

astral, keyronex and mintia

I dont think matthew has a gf iirc

and will is gay

so

[kind root]

correlation != causation etc etc

[surreal path]

@elder shoal

[kind root]

no gf no working ps2 driver

[cinder plinth]

outlier I can think of is managarm

[surreal path]

does infy have a wife yet

[kind root]

no

[surreal path]

get one

[kind root]

but i dont change gfs every week so who knows

[surreal path]

bru

😡

[kind root]

lmao

its harder for me anyway because im not as good looking

[surreal path]

ok im sure ur not THAT bad

[kind root]

at least ive been able to consistently have decent weight and exercise etc

[surreal path]

yea u got what u need

just be a little more confident

when it comes to girls

and youll be good

who knows

[kind root]

my gf might not like if im being confident around other girls

[surreal path]

wait u have a gf

[kind root]

lol

[surreal path]

well

if u actually have one

marry her

soon

real

[kind root]

if 💀

[surreal path]

☠️

why am i giving a 25 year old dating advice chat

am i just that rizzy

[kind root]

yup

[surreal path]

real

[kind root]

its funny because if u asked me id have to think how old i was for a second

u kinda forget after 20ish

[surreal path]

howd u

forget ur own age

i cant imagine

[kind root]

its just not a number u think about

[unkempt relic]

it started happening to me after i was 26 or so

[kind root]

i generally subtract current year from my birth year to confirm

[surreal path]

ah i see

[unkempt relic]

i suppose because 25 is sort of a milestone

[elder shoal]

I like guys and no I dont have a bf

[unkempt relic]

i expect i'll remember my age better when i'm 30, then forget it even harder into my mid 30s

[cinder plinth]

im 17 and I forget my age sometimes 💀

[surreal path]

haha no bf

[surreal path]

nah ur 17

nahhh

nahhh bros my age

[cinder plinth]

ok so to have a working OS you gotta be gay

noted

[cinder plinth]

chances are im younger than you

[unkempt relic]

you're brazilian, i'm sure you'll not have much difficulty finding one

[kind root]

will is here

[cinder plinth]

I'm born in summer

[surreal path]

im turing 18 this year

lol

haha

[cinder plinth]

yea same

but when

[surreal path]

march

14th

get

trolled

[cinder plinth]

yea im younger

[surreal path]

exactly respect ur elders

😡

[kind root]

wtf

imagine nyaux as your older brother

[surreal path]

i believe @finite summit is also younger then me

[cinder plinth]

the scariest young person here is pitust

but I'm younger so that's an excuse

[surreal path]

he lives in my country so im double scared of that dude

bro could pull up to my house

[kind root]

uk?

[surreal path]

ireland

he lives in ireland

[kind root]

so uk

[surreal path]

bru

[elder shoal]

one can dream

[cinder plinth]

north ireland or ireland

[elder shoal]

(I dont really have time, university and work take up too much already)

[surreal path]

u and will maybe?

i mean

[kind root]

i already suggested it lmfao

[surreal path]

[elder shoal]

😭

[surreal path]

plagerism

[surreal path]

ireland

not the british place

[kind root]

become a mormon as well

[unkempt relic]

just make sure you vote for fine gael as soon as you're 18 and you'll be grand

[kind root]

i've only heard people from ireland use the word grand

[surreal path]

is fadanoid also irish..

[kind root]

like not even in this server

[cinder plinth]

no

[kind root]

yeah

[cinder plinth]

🏴󠁧󠁢󠁳󠁣󠁴󠁿

[surreal path]

if so im double cooked

[kind root]

lol

close enough

[unkempt relic]

no but i'm from the highlands and we are originally an irish colony (dal riada) + i go on holiday to ireland on occasion

[surreal path]

dont come to my house please

[cinder plinth]

do you play golf

if I were scottish id play golf

[surreal path]

unless u bring pizza

then ur welcome

[kind root]

no do come and teach nyaux some osdev theory

[unkempt relic]

myself i don't but i have a few friends who do

[cinder plinth]

I do play golf here but we get like a 4 months only when its playable

[unkempt relic]

they have to because a few of them work at a golf club

and i'm 5 miles away from one of trump's controversial courses

[cinder plinth]

turnberry?

[unkempt relic]

balmedie

[cinder plinth]

turnberry is apparently the most beautiful course in the world

i think trump decided to buy a bunch of courses in scotland because of his mother's lineage or something

[unkempt relic]

https://www.youtube.com/watch?v=8m24yYMW2iw&start=10 balmedie is notorious because trump's goons and even his son trump jr tried to intimidate locals, harmed their water supply, knocked down some unique sand dunes

this guy and his mother were victims of that

[unkempt relic]

his mother's home is as far from his personality as you can imagine

[finite summit]

I cannot say anything about this

[unkempt relic]

the isle of lewis (also the namesake of part of managarm) is devoutly religious and not loud, obnoxious, or arrogant at all

[cinder plinth]

it's a nice home

[finite summit]

That's something that a devoutly religious, loud, obnoxious, and arrogant island would tell people to say

[surreal path]

burps

[cinder plinth]

scotland seems chill

I'd do a paul mccartney and buy a farm there for the meme

[cinder plinth]

which part of managarm

[plush hearth]

I know I'm younger than you...

[unkempt relic]

https://github.com/managarm/lewis this one

[cinder plinth]

huh didnt know that existed

is any member of the team scottish?

I thought they were all german/dutch/polish

[unkempt relic]

it's in keeping with the norse theme

[cinder plinth]

they ran out of deities?

[unkempt relic]

the isle of lewis was part of the kingdom of the isles, a kingdom established by the vikings

[cinder plinth]

I don't think I'll ever run out of deities with my greek theme

[unkempt relic]

and possibly the word is norse:

Derived from Scottish Gaelic Leòdhas, of uncertain origin; traditionally referred to Old Norse Ljóðahús, from ljóð (“song, poem”) + hús (“house”); but may be related to the Pictish name of the island recorded in Ptolemy's Geography as Λίμνου (Límnou).

[cinder plinth]

it's not like I have more than 4 components with names

[plush hearth]

Yep. There are so many greek deities

[cinder plinth]

I try to make it logical too (atlas being the "support" library, as he is the one who supports the skies)

[unkempt relic]

you'd be in more trouble if you picked a monotheistic religion

[cinder plinth]

the name nyx is mostly a wordplay on unix tho

[unkempt relic]

but i suppose you could use angels etc

[cinder plinth]

yea or prophets

I mean templeOS had a naming scheme somewhat

the root of the filesystem was called Adam

[unkempt relic]

azrael can be the reaper

[cinder plinth]

moses is the AI assistant

he speaks the voice of god

[unkempt relic]

i think the init process would be more fitting

[cinder plinth]

maybe I would've called that genesis

or something

idk

[flat nymph]

(at my university)

[cinder plinth]

there's a store called solaris here

[flat nymph]

i wonder if perhaps it's not a coincidence

[unkempt relic]

is that a portuguese extinguisher?

[flat nymph]

Spanish

[unkempt relic]

oh i see it now

[flat nymph]

bruh https://www.unix.es/

[unkempt relic]

extintor de incendios or something like tyhat

[flat nymph]

I saw this in informatics faculty

[unkempt relic]

i thought it said extintor de incendiao which sounds portuguese

[supple robin]

amogus

[surreal path]

i pissed of my gf today :)

off*

anyways

im gonna like

relax for a bit

before i go back to debugging hell

:^)

[rigid fable]

sigma

[surreal path]

nahhh we good now

as for if im done relaxing

[rigid fable]

remember you always have duck

[surreal path]

crazy

[surreal path]

uhhh

give me like

an hour

idk

i cant stop watching undertale videos

and ksp videos too

average 17 year old experience

[rigid fable]

eat 7pm

[surreal path]

mhm

[tawdry mirage]

3:30am

[surreal path]

yes

[plush hearth]

At 3:30am of course

[tawdry mirage]

did you eat 8 hours ago

[surreal path]

just ate

like

3am

was hungry

[surreal path]

dont think i feel like working on nyaux today

js a little exhausted

tmrw tho we debug

[rigid fable]

@surreal path do you fat or you are thick

[surreal path]

im thin

actually

[rigid fable]

then you need to become fat and your osdev will be better

[surreal path]

bru

[surreal path]

yea hi

i feel shit today as well

im sorry

but i need like to fix my sleep schedule

i cant live like this anymore

my dad said he will somehow fix it tmrw

by making me stay awake

if he suceeds on that ill work monday

otherwise ill force myself tmrw to work if i still have the shitty sleep schedule

its too difficult to work on anything like this

everyone is asleep

ur only awake

its dark and everything just feels depressing

i know u said yesterday id work tmrw

but please let me have this time to focus on just sleeping normally again

nyaux code quality will increase if i have better sleep

so there is a benefit to this

[surreal path]

i didnt give up on nyaux if any of you are thinking that

i have a few ideas on how to debug the scheduler actually

even tho i want to work on it i just need to focus on sleeping normally

im sorry again

and i hope yall understand why im doing this

sorry about nyaux having really slow progress the last 3 weeks now

[rigid fable]

1. you don't need gf
2. your asm code in scheduler is terrible

[flat nymph]

Don't worry about it

[tender gorge]

Good, focus on yourself first ^^

[tender gorge]

It's alright

[surreal path]

bro

also

hi

my dad didnt wake me up

cringe

he said he was sleepy

himself

idk he said he ll do it monday

which is tmrw

[surreal path]

thanks

[surreal path]

thank you

[surreal path]

hi

we work today

just give me an hour or 2

[surreal path]

okay lets work

okay

so the fact its doing different behavior makes me think we have a race condition of some kind

yea i dont think so?

i feel like i might be corrupting something

maybe our timer is not firing?

lets check if interrupts are disabled

no they are enabled

okay so

weird?

in gdb ive been seeing where it iretqs too

to

and it iretqs to each thread normally?

but its stuck because someone has the terminal lock?

it shouldnt hto

because theres no kprintf call in each function

interrupt handler

or the scheduler

this is fucking

weird

[surreal path]

yea im absolutely unsure whos holding the kprintf lock

im still suspecting its a bug with the scheduler

idk i just feel like it

[finite summit]

I am

Duh

[surreal path]

real

sorry

something happened

im back

back to debugging

still dont know whats going on

[surreal path]

[silver yarrow]

this emoji is should be the mascot of Nyaux

[surreal path]

i keep

fallijng asleep

now im sleepy

my sleep schedule is still so ass

ugh

[surreal path]

yes it should real

because i am having mega pain

debugging this weird ass issue

but now

im really sleepy

help

[fringe loom]

:nyaux:

[flat nymph]

because you're doing weird ass things

[tender gorge]

Have you considered asking a therapist/psychiatrist on how you could best try and get a decent sleeping schedule again

[surreal path]

yes

[surreal path]

nuh uh

[surreal path]

wasnt any help

i was even prescribed new sleeping medication

which doesnt work

[tender gorge]

tell them it doesnt

your doctors/therapists cant help you if you dont talk to them about things like this

[surreal path]

my next appointment isnt for another week

[surreal path]

time to debug some more

if i cant figure this out today im gonna actually ask for help cause im sick of this issue

[surreal path]

this is hell

actually hell

i need help

actually

[surreal path]

i figured it out

the bug

so basically

the scheduler is not saving the context even tho i am

extern memcpy
save_ctx: ; (old frame in rdi, new frame in rsi)
    test rsi, rsi
    je .escape
    mov rdx, 176
    jmp memcpy
    .escape:
    ret

so what basically happens

they all want to do the first thing in the code

print something

so funny kprintf deadlock occurs because well

they want the print to the screen but oh no

im back at the start

of the function

[surreal path]

@silver yarrow is jumping to memcpy bad

because i dont remember

but

i remember something about

idk

there was some bug that got solved with a jmp

im genuinely unsure why

could be switch queue maybe

i might just do it in c

since

its not actually having the context

okay ima try this

quite simple

nvm

the bug didnt solve itself

in fact

[silver yarrow]

this is not how I would do this at all

[surreal path]

that wasnt the bug

how would u do that

[silver yarrow]

push/pop

1. push all registers on stack

2. swap rsp

3. pop all registers from stack

thats a context switch

[surreal path]

kk will try

[surreal path]

well no

because

load ctx does that

not push

but pop

i dont understand

what are you trying to say @silver yarrow

[silver yarrow]

wdym load ctx

there is only switch

(in my impl)

I dont see a reason to have a save and load separately

that just overcomplicates things a ton

[surreal path]

okay well

[silver yarrow]

at least my impl relies on the fact that the switch happens at once

[surreal path]

can i see ur impl

so i can understand what ur talking about

cause i dont get how save context is done

[silver yarrow]

yeah, just its probably the worst to read part of my kernel

[surreal path]

in the same function

idc

let me see

[silver yarrow]

here is the assembly part

https://git.thenest.dev/wux/elysium-os/-/blob/6.0/kernel/src/arch/x86_64/sched.S?ref_type=heads

here is the arch specific C part https://git.thenest.dev/wux/elysium-os/-/blob/6.0/kernel/src/arch/x86_64/sched.c?ref_type=heads

[surreal path]

ohhh ur impl is way different then mine

u dont store the frame inside the thread

u did it on the stack

yea what ur saying doesnt apply

i did it before but

it causes problems

so i switched to the simple approach

@silver yarrow

[silver yarrow]

what ur doing is not simple

id argue just saving on the stack is actually far simpler

[surreal path]

some people here aruge otherwise

[silver yarrow]

who

[surreal path]

hold on

i need to get their names

wasnt it u @thorn bramble

i cant remember

either way @silver yarrow i dont know whats going on with my bug

idek know whats going on in the first place

i thought it was that

but no

i dont know whats happening

something it works

sometime it doesnt

[silver yarrow]

can I see ur context switch

[surreal path]

yea

extern memcpy
save_ctx: ; (old frame in rdi, new frame in rsi)
    test rsi, rsi
    je .escape
    mov rdx, 176
    jmp memcpy
    .escape:
    ret
load_ctx:
    mov rsp, rdi
    add rsp, 8
    pop r15
    pop r14
    pop r13
    pop r12
    pop r11
    pop r10
    pop r9
    pop r8
    pop rdi
    pop rsi
    pop rdx
    pop rcx
    pop rbx
    pop rax
    pop rbp
    add rsp, 8
    iretq

im reusuing the stack frame for the interrupts

btw

[silver yarrow]

what is test rsi, rsi supposed to do

[surreal path]

ignore it its reduent code

basically previously i would have escaped if rsi was null