Nyaux | Operating System Development | Page 33

flat nymph Dec 20, 2024, 2:57 PM

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No direct mappings of any sorts

rigid fable Dec 20, 2024, 2:57 PM

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sigma !

surreal path Dec 20, 2024, 2:57 PM

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following proper limine spec for a very similar hhdm

flat nymph Dec 20, 2024, 2:57 PM

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Default was handling everything

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Also it might have stuff like acpi and mmio (?)

surreal path Dec 20, 2024, 2:57 PM

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flat nymph Default was handling everything

its before default

surreal path Dec 20, 2024, 2:57 PM

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flat nymph Also it might have stuff like acpi and mmio (?)

no it shouldnt

rigid fable Dec 20, 2024, 2:57 PM

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flat nymph Also it might have stuff like acpi and mmio (?)

and he can map it after

flat nymph Dec 20, 2024, 2:58 PM

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🤷

surreal path Dec 20, 2024, 2:58 PM

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no im not doing that

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it should be mapped

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i think yea

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nvm it dies when

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trying to mmio the hpet

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yay :)

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yea

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first write

flat nymph Dec 20, 2024, 2:59 PM

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Temporary map user ultrameme

surreal path Dec 20, 2024, 2:59 PM

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mappings still overlap

thorn bramble Dec 20, 2024, 3:00 PM

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imagine unconditionally mapping 4GiB

surreal path Dec 20, 2024, 3:01 PM

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📎 message.txt

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mappings are still overlapping

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@flat nymph is that bad?

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im not mapping gib

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4 gib

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it still dies trying to access mmio as expected btw

thorn bramble Dec 20, 2024, 3:01 PM

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why vmm(x86_64)()

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what is the () supposed to be

surreal path Dec 20, 2024, 3:02 PM

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idk

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lol

thorn bramble Dec 20, 2024, 3:02 PM

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lmao

surreal path Dec 20, 2024, 3:02 PM

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looks cooler

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meme

thorn bramble Dec 20, 2024, 3:02 PM

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i mean okay

surreal path Dec 20, 2024, 3:03 PM

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hold on lemme allow my idt to actually init

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nvm infinite death

flat nymph Dec 20, 2024, 3:03 PM

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Maybe I've been looking at the wrong values

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mapped 0xffff800007c00000 to 0xffff800007e00000 : from phys 0x7c00000 to 0x7e00000

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Why are you mapping size 0?

surreal path Dec 20, 2024, 3:04 PM

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oh weird

surreal path Dec 20, 2024, 3:04 PM

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flat nymph Why are you mapping size 0?

i do not know

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im js following memory mappings blindly

surreal path Dec 20, 2024, 3:04 PM

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surreal path oh weird

not a valid return address

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that is the hpets address???

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OH WAIT THAT MAKES SENSE

flat nymph Dec 20, 2024, 3:05 PM

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Also this is kinda inconsistent vmm(x86_64)(): mapped 0xffff800000000000 to 0xffff800000200000 : from phys 0x0 to 0x200000
vmm(x86_64)(): mapped 0xffff800000000000 to 0xffff800000200000 : from phys 0x0 to 0x200000
vmm(x86_64)(): mapped 0xffff800000000000 to 0xffff800000800000 : from phys 0x0 to 0x800000
?

surreal path Dec 20, 2024, 3:05 PM

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yea i dont know

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this is weird

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and page fault handler is dying very weirdly

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i dont know at all

flat nymph Dec 20, 2024, 3:06 PM

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But like don't print what you're mapping

surreal path Dec 20, 2024, 3:06 PM

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for (uint64_t i = 0; i != memmap_request.response->entry_count; i += 1) {
    struct limine_memmap_entry *entry = memmap_request.response->entries[i];
    switch (entry->type) {
    case LIMINE_MEMMAP_FRAMEBUFFER: {
      uint64_t disalign = entry->base % MIB(2);
      entry->base = align_down(entry->base, MIB(2));
      uint64_t page_amount =
          align_up(entry->length + disalign, MIB(2)) / MIB(2);
      for (uint64_t j = 0; j != page_amount; j++) {
        map2mb(take->root, entry->base + (j * MIB(2)),
               hhdm_request.response->offset + entry->base + (j * MIB(2)),
               PRESENT | RWALLOWED | WRITETHROUGH | PATBIT2MB);
      }
      kprintf("vmm(x86_64)(): mapped 0x%lx to 0x%lx : from "
              "phys 0x%lx to 0x%lx\n",
              hhdm_request.response->offset + entry->base,
              hhdm_request.response->offset + entry->base +
                  (page_amount * MIB(2)),
              entry->base, entry->base + (page_amount * MIB(2)));
      hhdm_pages += page_amount;
      break;
    }
    case LIMINE_MEMMAP_BAD_MEMORY: {
      break;
    }
    case LIMINE_MEMMAP_RESERVED: {
      break;
    }
    default: {
      uint64_t disalign = entry->base % MIB(2);
      entry->base = align_down(entry->base, MIB(2));
      uint64_t page_amount =
          align_up(entry->length + disalign, MIB(2)) / MIB(2);
      for (uint64_t j = 0; j != page_amount; j++) {
        map2mb(take->root, entry->base + (j * MIB(2)),
               hhdm_request.response->offset + entry->base + (j * MIB(2)),
               PRESENT | RWALLOWED);
      }
      kprintf(
          "vmm(x86_64)(): mapped 0x%lx to 0x%lx : from phys 0x%lx to 0x%lx\n",
          hhdm_request.response->offset + entry->base,
          hhdm_request.response->offset + entry->base + (page_amount * MIB(2)),
          entry->base, entry->base + (page_amount * MIB(2)));
      hhdm_pages += page_amount;
      break;
    }
    }
  }
  hhdm_pages = (hhdm_pages * MIB(2)) / 4096;

flat nymph Dec 20, 2024, 3:06 PM

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Walk over the page tables and print the contents

surreal path Dec 20, 2024, 3:06 PM

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this is what i do

surreal path Dec 20, 2024, 3:06 PM

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flat nymph Walk over the page tables and print the contents

ill use gdb pt dump as im lazy

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anyways not doing the stacktrace doesnt kill nyaux

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so

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commenting out the stacktrace for now

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ummm

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cr2 is completely wrong

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NOT QUESTIONING IT

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js gonna

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do as u asked

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that is the mappings

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first address

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second

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third

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4th

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(gdb) pt -walk 0xffffffff80001000
Page table walk for VA = 0xffffffff80001000

CR3 = 0x3a6d000
PML4[511] = 0x3a6c000 | Flags 0x027
PDP[510] = 0x3a6b000 | Flags 0x027
PD[0] = 0x3a6a000 | Flags 0x027
PT[1] = 0x1fe2000 | Flags 0x021

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5th

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(gdb) pt -walk 0xffffffff80087000
Page table walk for VA = 0xffffffff80087000

CR3 = 0x3a6d000
PML4[511] = 0x3a6c000 | Flags 0x027
PDP[510] = 0x3a6b000 | Flags 0x027
PD[0] = 0x3a6a000 | Flags 0x027
PT[135] = 0x2068000 | Flags 0x021

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6th

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and now

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7th

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(gdb) pt -walk 0xffffffff80095000
Page table walk for VA = 0xffffffff80095000

CR3 = 0x3a6d000
PML4[511] = 0x3a6c000 | Flags 0x027
PDP[510] = 0x3a6b000 | Flags 0x027
PD[0] = 0x3a6a000 | Flags 0x027
PT[149] = 0x2076000 | Flags 0x003

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@flat nymph

flat nymph Dec 20, 2024, 3:11 PM

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Idk does it point where it's supposed to?

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I'm occupied lol

rigid fable Dec 20, 2024, 3:12 PM

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nyaux master poopcode win

surreal path Dec 20, 2024, 3:12 PM

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flat nymph Idk does it point where it's supposed to?

ummmmmmm i guess? from what it looks like?

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tho some entries look weird

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i think

surreal path Dec 20, 2024, 3:14 PM

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surreal path third

well the third one looks fine

surreal path Dec 20, 2024, 3:14 PM

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rigid fable nyaux master poopcode win

shut up u freaky duck 😡

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/j

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pin this

rigid fable Dec 20, 2024, 3:16 PM

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surreal path shut up u freaky duck 😡

🦆😡

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🦆😭

surreal path Dec 20, 2024, 3:20 PM

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surreal path ummmmmmm i guess? from what it looks like?

flags look correct tho which is good

silver yarrow Dec 20, 2024, 3:29 PM

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The problem is still that you're likely looking for UB that only happens on specific hardware and not qemu. So it's likely you wont find it in qemu

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Since the UB works in your favor in qemu

surreal path Dec 20, 2024, 3:42 PM

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silver yarrow The problem is still that you're likely looking for UB that only happens on spec...

want me to prove u wrong by getting nyaux to load

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on my laptop

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if the 4gib meme was the actual problem

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ill be happy

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@flat nymph u still busy?

flat nymph Dec 20, 2024, 3:44 PM

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Yes

surreal path Dec 20, 2024, 3:44 PM

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nooo

silver yarrow Dec 20, 2024, 3:45 PM

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have you been able to reproduce the issue in qemu or some vm

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before you have done that or are able to debug on your laptop, you are just taking shots in the dark

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not saying you wont hit anything but seems like a very tedious process

surreal path Dec 20, 2024, 3:48 PM

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silver yarrow have you been able to reproduce the issue in qemu or some vm

no

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and yea it kind of makes sense why it dies now.

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a lot of overrlapping entries

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a LOT

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and no idea how to fix this

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nooo

silver yarrow Dec 20, 2024, 3:50 PM

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I dont really see any overlap

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I mean sure u are mapping the same regions many times but thats not overlap

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unless they are meant to be unique virtually too

surreal path Dec 20, 2024, 3:50 PM

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silver yarrow I mean sure u are mapping the same regions many times but thats not overlap

yea ig

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but then

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i dont know whats going on then

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i removed the unconditally 4gib mapping

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which breaks all mmio, and nyaux symbol loading for some reason

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still doesnt want to load

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nooo

silver yarrow Dec 20, 2024, 3:51 PM

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the hhdm 4gig mapping?

surreal path Dec 20, 2024, 3:51 PM

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silver yarrow the hhdm 4gig mapping?

yea, before i map the memory map i would unconditally map the above 4gib region

silver yarrow Dec 20, 2024, 3:52 PM

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wdym above?

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You mean under right 0-4gib

surreal path Dec 20, 2024, 3:52 PM

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0x0 to 0x1000000

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yea

silver yarrow Dec 20, 2024, 3:52 PM

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yeah thats fine

surreal path Dec 20, 2024, 3:52 PM

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thats fine

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thats not a problem?

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so i can leave it in right?

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please

silver yarrow Dec 20, 2024, 3:52 PM

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not in the slightest

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its what I do too

surreal path Dec 20, 2024, 3:52 PM

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thank you

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and mr other guy was flaming me for

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doing that

silver yarrow Dec 20, 2024, 3:52 PM

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now obviously would be nice to optimize it with 4 x 1gig mappings but thats an optimization u can do later

silver yarrow Dec 20, 2024, 3:53 PM

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surreal path doing that

can u link those messages

surreal path Dec 20, 2024, 3:53 PM

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silver yarrow can u link those messages

sure

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^

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^

silver yarrow Dec 20, 2024, 3:54 PM

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well technically thats correct, you might not need it

surreal path Dec 20, 2024, 3:54 PM

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i need it

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clearly do

silver yarrow Dec 20, 2024, 3:54 PM

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interesting

surreal path Dec 20, 2024, 3:55 PM

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for mmio reasons

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cause im lazy

silver yarrow Dec 20, 2024, 3:55 PM

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on qemu it really shouldnt be necessary

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as long as the memory map is mapped

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real hardware is dodgier so that 4gib mapping is nice

surreal path Dec 20, 2024, 3:55 PM

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yeaa

silver yarrow Dec 20, 2024, 3:57 PM

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So do you have any clue what goes wrong on real hardware

surreal path Dec 20, 2024, 3:57 PM

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no

silver yarrow Dec 20, 2024, 3:57 PM

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Well lets start there then, how far along do you get

thorn bramble Dec 20, 2024, 3:58 PM

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surreal path

can you show what code you use to print those.. things?

surreal path Dec 20, 2024, 3:58 PM

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to switching cr3

thorn bramble Dec 20, 2024, 3:58 PM

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like what is overlapping

surreal path Dec 20, 2024, 3:58 PM

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thorn bramble Dec 20, 2024, 3:58 PM

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wow ok but like

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is that in a loop?

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or something

surreal path Dec 20, 2024, 3:58 PM

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yea

thorn bramble Dec 20, 2024, 3:58 PM

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show the loop

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the whole thing

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and what does the loop do

surreal path Dec 20, 2024, 3:58 PM

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kk

thorn bramble Dec 20, 2024, 3:58 PM

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map memory?

surreal path Dec 20, 2024, 3:59 PM

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https://pastebin.com/G32eYKcu

Pastebin

uint64_t x86_64_map_kernelhhdmandmemorymap(pagemap *take) { uint64...

Pastebin.com is the number one paste tool since 2002. Pastebin is a website where you can store text online for a set period of time.

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ill js

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give u the entire function

surreal path Dec 20, 2024, 3:59 PM

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thorn bramble map memory?

yes map the memory map

thorn bramble Dec 20, 2024, 4:00 PM

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your problem is that you're assuming every entry has 2MiB aligned base and length

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from a quick look at the very least

silver yarrow Dec 20, 2024, 4:01 PM

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yeap

surreal path Dec 20, 2024, 4:01 PM

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but i have the disalign and i add it?

silver yarrow Dec 20, 2024, 4:01 PM

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only doing 2mb mappings

thorn bramble Dec 20, 2024, 4:01 PM

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that won't work

surreal path Dec 20, 2024, 4:01 PM

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so what do i do

silver yarrow Dec 20, 2024, 4:01 PM

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map 4kib pages

surreal path Dec 20, 2024, 4:01 PM

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no

silver yarrow Dec 20, 2024, 4:01 PM

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or lose the alignment

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you can ceil the base and floor the end

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but you are wasting memory

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actually hold on

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im dumb, you cant do that

thorn bramble Dec 20, 2024, 4:02 PM

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#define FOUR_KIB (4*1024)
#define TWO_MIB (2*1024*1024)
#define ONE_GIB (1*1024*1024*1024)
while (length >= FOUR_KIB) {
  if (is_aligned(addr, ONE_GIB) && length >= ONE_GIB) {
    map_1gib(...);
    addr += ONE_GIB;
    length -= ONE_GIB;
  } else if (is_aligned(addr, TWO_MIB) && length >= TWO_MIB) {
    map_2mib(...);
    addr += TWO_MIB;
    length -= TWO_MIB;
  } else {
    map_4kib(...);
    addr += FOUR_KIB;
    length -= FOUR_KIB;
  }
}```

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now, you can probably clean that up a little bit

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but this is necessary

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you cant just round down an entry and map it as 2mib page lol

silver yarrow Dec 20, 2024, 4:03 PM

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yeah was about to say

thorn bramble Dec 20, 2024, 4:03 PM

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the memory entry has clear boundaries

silver yarrow Dec 20, 2024, 4:04 PM

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btw this answers why u needed the 4gib mapping

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mapping the entries failed because u were doing it on unaligned boundaries but the 4gib mapping was aligned

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honestly prolly the only reason this works on qemu is because the entries are all or mostly below 4gib

thorn bramble Dec 20, 2024, 4:05 PM

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here, i updated the code so it's a bit more C-like

surreal path Dec 20, 2024, 4:12 PM

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thorn bramble ```c #define FOUR_KIB (4*1024) #define TWO_MIB (2*1024*1024) #define ONE_GIB (1*...

can i steal ur is aligned function

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i dont know how to do basic math trl

thorn bramble Dec 20, 2024, 4:13 PM

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#define is_aligned(value, align) (((value) & ((align) - 1)) == 0)

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assuming align is a power of 2

surreal path Dec 20, 2024, 4:13 PM

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thanks

thorn bramble Dec 20, 2024, 4:14 PM

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i wrote it in this discord chat, this should probably be some sort of a function so it's properly typed

surreal path Dec 20, 2024, 4:14 PM

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thorn bramble i wrote it in this discord chat, this should probably be some sort of a function...

okay

surreal path Dec 20, 2024, 4:20 PM

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thorn bramble ```c #define FOUR_KIB (4*1024) #define TWO_MIB (2*1024*1024) #define ONE_GIB (1*...

made this function

bool is2mibaligned(uint64_t addr, uint64_t length) {
  if (is_aligned(addr, MIB(2)) && length >= MIB(2)) {
    return true;
  } else {
    return false;
  }
}

thorn bramble Dec 20, 2024, 4:21 PM

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you did not need a function to specifically check that but sure yeah

surreal path Dec 20, 2024, 4:21 PM

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if (is2mibaligned(entry->base, entry->length)) {
      uint64_t disalign = entry->base % MIB(2);
      entry->base = align_down(entry->base, MIB(2));
      uint64_t page_amount =
          align_up(entry->length + disalign, MIB(2)) / MIB(2);
      for (uint64_t j = 0; j != page_amount; j++) {
        map2mb(take->root, entry->base + (j * MIB(2)),
               hhdm_request.response->offset + entry->base + (j * MIB(2)),
               PRESENT | RWALLOWED | WRITETHROUGH | PATBIT2MB);
      }
      kprintf("vmm(x86_64)(): mapped 0x%lx to 0x%lx : from "
              "phys 0x%lx to 0x%lx\n",
              hhdm_request.response->offset + entry->base,
              hhdm_request.response->offset + entry->base +
                  (page_amount * MIB(2)),
              entry->base, entry->base + (page_amount * MIB(2)));
      hhdm_pages += page_amount;
      } else {
        uint64_t disalign = entry->base % 4096;
        entry->base = align_down(entry->base, 4096);
        uint64_t page_amount = 
        align_up(entry->length + disalign, 4096) / 4096;
        for (uint64_t j = 0; j != page_amount; j++) {
          map(take->root, entry->base + (j * 4096),
          hhdm_request.response->offset + entry->base + (j * 4096),
          PRESENT | RWALLOWED | WRITETHROUGH | PATBIT4096);
        }
      }

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i do an if statement

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if its aligned

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map with 2mib

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if not

tawdry mirage Dec 20, 2024, 4:21 PM

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wtf is this

surreal path Dec 20, 2024, 4:21 PM

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4kib

thorn bramble Dec 20, 2024, 4:21 PM

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do not do this disalign bullshit anymore

surreal path Dec 20, 2024, 4:21 PM

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tawdry mirage wtf is this

oh no

thorn bramble Dec 20, 2024, 4:21 PM

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its 2 mib aligned

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just map it

surreal path Dec 20, 2024, 4:21 PM

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thorn bramble do not do this disalign bullshit anymore

okay

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sorry

thorn bramble Dec 20, 2024, 4:21 PM

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dont apologize

surreal path Dec 20, 2024, 4:21 PM

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no aligning down as well

thorn bramble Dec 20, 2024, 4:21 PM

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nope

surreal path Dec 20, 2024, 4:21 PM

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okay

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this is better now

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im scared qookie is typing a long paragraph

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am i about to be cooked

thorn bramble Dec 20, 2024, 4:23 PM

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surreal path this is better now

sure yeah that looks better

surreal path Dec 20, 2024, 4:23 PM

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thorn bramble sure yeah that looks better

pray for me iretq

tawdry mirage Dec 20, 2024, 4:23 PM

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progress = 0
while (progress < size) {
    if (size - progress >= 2M && !(base + progress & (2M - 1))) {
        map_2M_page(addr)
        progress += 2M;
    } else {
        map_4K_page(addr);
        progress+= 4K;
    }
}```

thorn bramble Dec 20, 2024, 4:23 PM

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thorn bramble ```c #define FOUR_KIB (4*1024) #define TWO_MIB (2*1024*1024) #define ONE_GIB (1*...

^

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basically the same except more complicated meme

surreal path Dec 20, 2024, 4:24 PM

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meme

tawdry mirage Dec 20, 2024, 4:24 PM

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meme

rigid fable Dec 20, 2024, 4:24 PM

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meme

surreal path Dec 20, 2024, 4:25 PM

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so close

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uh huh

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yea idk why that is failing

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nooo

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its just like changing that 2mib entry into a bunch of smaller 4kib ones

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so why is it failing

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thonk

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oh thanks ubsan

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store to null pointer of type uint64

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whats the null poninter exactly tho

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???

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im confused

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is it guy[j]????

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he should be valid tho

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cr2 is 0x0

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nooo

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all guy is is just ```C
uint64_t *guy = (uint64_t *)((uint64_t)pmm_alloc());

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oh

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we ran out of memory

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nooo

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come on like why am i running out of memory

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should i be running out of memory

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???

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do yall know

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uint64_t page_amount = align_up(entry->length, 4096) / 4096;
        for (uint64_t j = 0; j != page_amount; j++) {
          map(take->root, entry->base + (j * 4096),
              hhdm_request.response->offset + entry->base + (j * 4096),
              PRESENT | RWALLOWED);
        }
        kprintf("vmm(x86_64)(): mapped 0x%lx to 0x%lx : from "
                "phys 0x%lx to 0x%lx\n",
                hhdm_request.response->offset + entry->base,
                hhdm_request.response->offset + entry->base +
                    (page_amount * 4096),
                entry->base, entry->base + (page_amount * 4096));
        hhdm_pages += page_amount;

#

thats the logic

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fun so we ran out of memory trying to map the memory map

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:)

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iwannadie

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yea no idea if i should be running out of memory in the first place

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this is on qemus default ram

edgy pilot Dec 20, 2024, 4:34 PM

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https://cdn.discordapp.com/emojis/704078412658245692.gif?size=64

surreal path Dec 20, 2024, 4:34 PM

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edgy pilot https://cdn.discordapp.com/emojis/704078412658245692.gif?size=64

me rn

molten grotto Dec 20, 2024, 4:43 PM

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surreal path this is on qemus default ram

likely no

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at least with full 2mb pages for the hhdm

surreal path Dec 20, 2024, 4:43 PM

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molten grotto likely no

it is

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check the makefile

molten grotto Dec 20, 2024, 4:44 PM

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I meant to reply to the "if i should be running out of memory in the first place"

surreal path Dec 20, 2024, 4:44 PM

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molten grotto I meant to reply to the "if i should be running out of memory in the first place...

ohhh

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yea

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so no idea whats going on

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nooo

surreal path Dec 20, 2024, 5:04 PM

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help

rigid fable Dec 20, 2024, 5:05 PM

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with what

surreal path Dec 20, 2024, 5:05 PM

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i dont get why im running out of memory

rigid fable Dec 20, 2024, 5:05 PM

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pmm issue

surreal path Dec 20, 2024, 5:06 PM

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no its not

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the pmm is fine

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its so simple

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it cant have an issue

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its like 73 lines of code lmao

hexed mango Dec 20, 2024, 5:06 PM

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surreal path this is on qemus default ram

add more RAM then

surreal path Dec 20, 2024, 5:06 PM

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hexed mango add more RAM then

qemus default ram is 256mb

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i should not be taking that much ram

hexed mango Dec 20, 2024, 5:07 PM

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hm

rigid fable Dec 20, 2024, 5:07 PM

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surreal path qemus default ram is 256mb

with what you have issue

hexed mango Dec 20, 2024, 5:07 PM

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it's taking up that much RAM while doing what exactly?

surreal path Dec 20, 2024, 5:07 PM

#

hexed mango it's taking up that much RAM while doing what exactly?

mapping the memory map

hexed mango Dec 20, 2024, 5:07 PM

#

what?

surreal path Dec 20, 2024, 5:07 PM

#

yea

rigid fable Dec 20, 2024, 5:07 PM

#

add more ram and check

#

don't be a dumb

surreal path Dec 20, 2024, 5:07 PM

#

fine

hexed mango Dec 20, 2024, 5:08 PM

#

are you mapping the HHDM or smth?

surreal path Dec 20, 2024, 5:08 PM

#

hexed mango are you mapping the HHDM or smth?

mhm

rigid fable Dec 20, 2024, 5:08 PM

#

hexed mango are you mapping the HHDM or smth?

he mapping hhdm

hexed mango Dec 20, 2024, 5:08 PM

#

surreal path mhm

did you try using larger pages for the HHDM? that'll be faster during translation misses anyways

surreal path Dec 20, 2024, 5:08 PM

#

hexed mango did you try using larger pages for the HHDM? that'll be faster during translatio...

ofc i am

#

i used before

#

but now because of alignment

rigid fable Dec 20, 2024, 5:09 PM

#

hexed mango did you try using larger pages for the HHDM? that'll be faster during translatio...

4k pages forever

surreal path Dec 20, 2024, 5:09 PM

#

i have to use 4096 byte pages if they arent aligned to 2 MiB

#

because of real hw issue

hexed mango Dec 20, 2024, 5:09 PM

#

ya? that sounds about right

rigid fable Dec 20, 2024, 5:09 PM

#

if real hw crashing, it's vm issue

surreal path Dec 20, 2024, 5:09 PM

#

vmm dies no matter what i do

#

no matter how much memory i give

#

fucking hell

hexed mango Dec 20, 2024, 5:10 PM

#

memory leak somewhere?

surreal path Dec 20, 2024, 5:10 PM

#

no

rigid fable Dec 20, 2024, 5:10 PM

#

surreal path fucking hell

skill issue

hexed mango Dec 20, 2024, 5:10 PM

#

surreal path no

then somewhere you're overcommitting pages, I'd say

rigid fable Dec 20, 2024, 5:10 PM

#

try to make your vmm cleaner

surreal path Dec 20, 2024, 5:11 PM

#

hexed mango then somewhere you're overcommitting pages, I'd say

#

am i somehow

surreal path Dec 20, 2024, 5:11 PM

#

rigid fable try to make your vmm cleaner

deal with it meme

surreal path Dec 20, 2024, 5:11 PM

#

surreal path

same code for default case js without

#

wc

#

and stuff

hexed mango Dec 20, 2024, 5:12 PM

#

surreal path

presumably in the mapping functions

rigid fable Dec 20, 2024, 5:12 PM

#

surreal path deal with it <:meme:575445094589661215>

please make code cleaner like this
https://github.com/sys-q/quackOS/blob/main/src%2Fsource%2Fkernel%2Fmm%2Fvmm.c

GitHub

quackOS/src/source/kernel/mm/vmm.c at main · sys-q/quackOS

x86_64 OS. Contribute to sys-q/quackOS development by creating an account on GitHub.

surreal path Dec 20, 2024, 5:12 PM

#

hexed mango presumably in the mapping functions

the mapping functions are fine

#

like they shouldnt be overcommiting memory

#

im js asking for ONE page

#

thorn bramble Dec 20, 2024, 5:13 PM

#

i see that we all have different definitions of "clean code"

rigid fable Dec 20, 2024, 5:13 PM

#

https://tenor.com/view/boxing-penguin-gif-11814253

Tenor

rigid fable Dec 20, 2024, 5:14 PM

#

surreal path

wait why pte shift is 48

surreal path Dec 20, 2024, 5:14 PM

#

rigid fable wait why pte shift is 48

48 bit virtual addressing

rigid fable Dec 20, 2024, 5:14 PM

#

exactly

surreal path Dec 20, 2024, 5:15 PM

#

dont u see the shift -= 9

thorn bramble Dec 20, 2024, 5:15 PM

#

he subtracts 9 at the start

#

so it becomes 39

surreal path Dec 20, 2024, 5:15 PM

#

mhm

rigid fable Dec 20, 2024, 5:15 PM

#

what mhm means

surreal path Dec 20, 2024, 5:15 PM

#

yes

rigid fable Dec 20, 2024, 5:16 PM

#

thorn bramble so it becomes 39

isn't this pml4 shift

thorn bramble Dec 20, 2024, 5:17 PM

#

by shifting the virtual address right by 39 bits you put the 9 bits used to index the page table at bit 0

#

so (va >> 39) & 0x1ff gives you the index

surreal path Dec 20, 2024, 5:33 PM

#

ima have a break from trying to debug this

#

for like a few

#

i am not feeling okay

rigid fable Dec 20, 2024, 5:33 PM

#

just

#

dont

#

shitcode

surreal path Dec 20, 2024, 5:33 PM

#

i am not shitcoding

#

meme

rigid fable Dec 20, 2024, 5:33 PM

#

and think about users

surreal path Dec 20, 2024, 5:33 PM

#

sorry users>

#

?

rigid fable Dec 20, 2024, 5:33 PM

#

ultrameme

rigid fable Dec 20, 2024, 5:34 PM

#

surreal path sorry users>

about "copypasters" and mishakov

surreal path Dec 20, 2024, 5:34 PM

#

rigid fable about "copypasters" and mishakov

no deal with the readablity

#

halfmememiddle

#

okay but seriously i need a break im too frustrated

tender gorge Dec 20, 2024, 5:47 PM

#

surreal path okay but seriously i need a break im too frustrated

Valid, take your time hug

rigid fable Dec 20, 2024, 5:53 PM

#

surreal path okay but seriously i need a break im too frustrated

halfmemeleft halfmememiddle halfmemeright

surreal path Dec 20, 2024, 7:06 PM

#

im back and im not feelings happy rn

#

with nyaux fucking running out of memory

#

😡

#

time to read the code line by line ig

edgy pilot Dec 20, 2024, 7:06 PM

#

surreal path time to read the code line by line ig

char by char

surreal path Dec 20, 2024, 7:07 PM

#

edgy pilot char by char

lmao

rigid fable Dec 20, 2024, 7:07 PM

#

surreal path 😡

maybe your pmm is pooped

rigid fable Dec 20, 2024, 7:08 PM

#

edgy pilot char by char

bit by bit

surreal path Dec 20, 2024, 7:08 PM

#

rigid fable maybe your pmm is pooped

look at the pmm itself

#

its lit

#

73 lines

rigid fable Dec 20, 2024, 7:08 PM

#

little != working

surreal path Dec 20, 2024, 7:08 PM

#

its a freelist

#

how could it be wrong

edgy pilot Dec 20, 2024, 7:08 PM

#

surreal path 73 lines

I can write an abomination on just a single line

surreal path Dec 20, 2024, 7:08 PM

#

okay @rigid fable

#

join vc

#

meme

#

voice 0

rigid fable Dec 20, 2024, 7:09 PM

#

surreal path okay <@456226577798135808>

I am on phone

surreal path Dec 20, 2024, 7:09 PM

#

and? u can join on ur phone lol

rigid fable Dec 20, 2024, 7:09 PM

#

surreal path its a freelist

i am bitmap team

#

😈

surreal path Dec 20, 2024, 7:09 PM

#

cringe

#

hold on

rigid fable Dec 20, 2024, 7:11 PM

#

I hear some monkey in voice

surreal path Dec 20, 2024, 7:11 PM

#

IM NOT A MONKEY

#

WOW

#

can u see my stream tho

rigid fable Dec 20, 2024, 7:11 PM

#

yes

surreal path Dec 20, 2024, 7:11 PM

#

finally

rigid fable Dec 20, 2024, 7:12 PM

#

is this your bf ?

surreal path Dec 20, 2024, 7:12 PM

#

bf??? im not gay 😭

#

well i am bi so i am gay but

#

but

rigid fable Dec 20, 2024, 7:12 PM

#

I think the opposite

surreal path Dec 20, 2024, 7:12 PM

#

😭

#

okay this girl im cooking with

#

i got the rizz with her

#

tho she has a strong irish acent

#

omg

surreal path Dec 20, 2024, 7:36 PM

#

surreal path Dec 20, 2024, 7:59 PM

#

@thorn bramble

#

ur code

#

kind root Dec 20, 2024, 8:12 PM

#

classic if true return true else return false

surreal path Dec 20, 2024, 8:12 PM

#

i realized the problem

spice yarrow Dec 20, 2024, 8:56 PM

#

surreal path

When you're paid by lines of code

surreal path Dec 20, 2024, 9:23 PM

#

IT WORKED

#

NYAUX WORKED

#

ON MY LAPTOP

#

TEST IT YALL

#

EVERYONE ONE OF YOU

#

📎 NyauxKC-x86_64.iso

#

@kind root my laptop has kinda weird aml

edgy pilot Dec 20, 2024, 9:24 PM

#

that needs a reboot and a spare flash drive

surreal path Dec 20, 2024, 9:25 PM

#

im so happy

#

letsgo

kind root Dec 20, 2024, 9:25 PM

#

surreal path <@353593948523986945> my laptop has kinda weird aml

weird aml or your unimplemented kernel api

surreal path Dec 20, 2024, 9:26 PM

#

kind root weird aml or your unimplemented kernel api

even on like other kernels

edgy pilot Dec 20, 2024, 9:26 PM

#

kind root weird aml or your unimplemented kernel api

weird aml of course

kind root Dec 20, 2024, 9:26 PM

#

surreal path even on like other kernels

what are the errors

surreal path Dec 20, 2024, 9:26 PM

#

im sure its because some didnt impl some things in uacpi

kind root Dec 20, 2024, 9:27 PM

#

try pmos on it

surreal path Dec 20, 2024, 9:27 PM

#

k

kind root Dec 20, 2024, 9:27 PM

#

or just send a screenshot of what errors u get

surreal path Dec 20, 2024, 9:27 PM

#

screenshot

#

😭

#

its real hardware

kind root Dec 20, 2024, 9:27 PM

#

what hw btw

#

(or a photo idc as long as its legible)

surreal path Dec 20, 2024, 9:27 PM

#

acer predator trition PT14-51

kind root Dec 20, 2024, 9:28 PM

#

doubt it has weird aml

#

pretty new stuff

surreal path Dec 20, 2024, 9:33 PM

#

it works fine

#

yea its js

#

yk

kind root Dec 20, 2024, 9:34 PM

#

so uh

#

photos?

surreal path Dec 20, 2024, 9:34 PM

#

i didnt take any

#

😭

#

but i swear @kind root i saw no errors

#

my laptop has a ec controller

#

cool!

kind root Dec 20, 2024, 9:37 PM

#

so whats weird about it lol

surreal path Dec 20, 2024, 9:37 PM

#

nothing just my unimplmented kernel api

#

💀

kind root Dec 20, 2024, 9:38 PM

#

uh

#

makes sense

#

pmos worked fine?

surreal path Dec 20, 2024, 9:38 PM

#

yep

#

anyways

#

now

#

we fixed all the bugs we encountered before doing the scheduler

#

its time for the scheduler

#

tomorrow we will

kind root Dec 20, 2024, 9:40 PM

#

LETSFUCKINGGOOOOOO

surreal path Dec 20, 2024, 9:40 PM

#

letsgo

finite summit Dec 20, 2024, 9:57 PM

#

letsgo

thorn bramble Dec 21, 2024, 5:33 AM

#

surreal path

my code yeah?

#

looks fine

#

only thing i can think of is the macro doing some weird implicit narrowing but like idk looks fine to me

surreal path Dec 21, 2024, 12:07 PM

#

thorn bramble my code yeah?

obviously nothing wrong

#

i was being stupid

surreal path Dec 21, 2024, 2:33 PM

#

idk if i can do any development today

#

wsl has stopped working

#

and

#

i rebooted

#

and tried wsl --shutdown

#

and stuff

#

and it wont work

#

nooo

#

i mean obviously i will get development done today

#

i js

#

need to figure out this windows skill issue

#

github js said i have "free access to copilot"

#

lmao like i care

thorn bramble Dec 21, 2024, 2:55 PM

#

i do too for some reason

finite summit Dec 21, 2024, 2:55 PM

#

same

kind root Dec 21, 2024, 3:06 PM

#

Everyone has it now

rigid fable Dec 21, 2024, 3:23 PM

#

surreal path and tried wsl --shutdown

wsl ez

#

easy

rigid fable Dec 21, 2024, 3:24 PM

#

surreal path

It might be a problem form my side, tho it doesn't work :/

#

Neither bios nor uefi

surreal path Dec 21, 2024, 3:26 PM

#

rigid fable It might be a problem form my side, tho it doesn't work :/

thats an old iso

finite summit Dec 21, 2024, 3:26 PM

#

rigid fable It might be a problem form my side, tho it doesn't work :/

hi omar, I'm omar

surreal path Dec 21, 2024, 3:26 PM

#

can u try this?

📎 NyauxKC-x86_64.iso

rigid fable Dec 21, 2024, 3:26 PM

#

finite summit hi omar, I'm omar

Ooo cool

#

Nice to meet you

surreal path Dec 21, 2024, 3:28 PM

#

also whats ur cpu

rigid fable Dec 21, 2024, 3:28 PM

#

surreal path also whats ur cpu

AMD E-350D iirc

#

It's a random mini PC I've got lying around

surreal path Dec 21, 2024, 3:28 PM

#

#

thats an old cpu

rigid fable Dec 21, 2024, 3:28 PM

#

Yup it is

surreal path Dec 21, 2024, 3:29 PM

#

when was rep stosb and friends introduced into the instruction set @molten grotto

#

i suspect its that instruction

finite summit Dec 21, 2024, 3:30 PM

#

they have always been there

surreal path Dec 21, 2024, 3:30 PM

#

since when

finite summit Dec 21, 2024, 3:30 PM

#

probably 80386

#

or eariler

#

if it were relatively new, it would have a cpuid flag

surreal path Dec 21, 2024, 3:31 PM

#

i feel like its probs because im relying on something thats quite new

#

causing it to page fault

#

as it doesnt page fault on most hw

finite summit Dec 21, 2024, 3:31 PM

#

could be popcount if it crashes at uacpi

surreal path Dec 21, 2024, 3:31 PM

#

finite summit could be popcount if it crashes at uacpi

and when was that introduced

finite summit Dec 21, 2024, 3:32 PM

#

x86_64-v2 I believe

#

so ~2013?

surreal path Dec 21, 2024, 3:32 PM

#

yea

#

that would make sense

#

nyaux is compiled with x86_64 v2

finite summit Dec 21, 2024, 3:33 PM

#

finite summit so ~2013?

nah that's 2008

#

nvm

surreal path Dec 21, 2024, 3:33 PM

#

oh

molten grotto Dec 21, 2024, 3:33 PM

#

also idk why would it page fault and not ud or whatever

finite summit Dec 21, 2024, 3:33 PM

#

x86_64-v3 is haswell

#

so 2013

rigid fable Dec 21, 2024, 3:33 PM

#

Well, seems like it works-ish :D

surreal path Dec 21, 2024, 3:33 PM

#

oh it works

#

yay

#

nvm

#

we are all good

#

nyaux is not UBing thankfully

#

i should change that panic message to

#

32 bit hpet buddy

#

because i dont support a 32 bit hpet lol

finite summit Dec 21, 2024, 3:34 PM

#

no change it to

#

"NyauxKC does not support 32-bit HPETs"

#

because it took me a good second or two to realize what you meant

tawdry mirage Dec 21, 2024, 3:35 PM

#

the panic message sounds like you only support 32-bit HPETs

finite summit Dec 21, 2024, 3:35 PM

#

yeah

surreal path Dec 21, 2024, 3:35 PM

#

tawdry mirage the panic message sounds like you only support 32-bit HPETs

yea

#

ik

finite summit Dec 21, 2024, 3:35 PM

#

for example in obos:

if (!(timer->timerConfigAndCapabilities & (1<<5)))
    OBOS_Panic(OBOS_PANIC_DRIVER_FAILURE, "HPET Timer is not a 64-bit timer.");

surreal path Dec 21, 2024, 3:36 PM

#

can we make a more funny error message chat

#

thonk

finite summit Dec 21, 2024, 3:36 PM

#

uacpi_status uacpi_kernel_handle_firmware_request(uacpi_firmware_request* req)
{
    switch (req->type)
    {
    case UACPI_FIRMWARE_REQUEST_TYPE_BREAKPOINT:
        break;
    case UACPI_FIRMWARE_REQUEST_TYPE_FATAL:
        OBOS_Debug("Firmware requested fatal error. Panicking.\n");
        OBOS_Panic(OBOS_PANIC_FATAL_ERROR,
            "Your bios fucked up, so now you have to deal with the consequences, also known as possible data loss. Firmware Error Code: 0x%016x, argument: %016lx\n",
            req->fatal.code, req->fatal.arg);
        break;
    default:
        break;
    }
    return UACPI_STATUS_OK;
}```

#

I should remake that panic message

rigid fable Dec 21, 2024, 3:36 PM

#

Disabled the HPET from the bios because I can

surreal path Dec 21, 2024, 3:37 PM

#

lol

rigid fable Dec 21, 2024, 3:37 PM

#

It's a thing lol

surreal path Dec 21, 2024, 3:37 PM

#

crazy

finite summit Dec 21, 2024, 3:37 PM

#

"Your firmware shat itself, so now obos will shit itself. Firmware Error Code: 0x%016x, argument: %016lx\n"

surreal path Dec 21, 2024, 3:38 PM

#

lool

#

my wsl is broken

#

i cant fix it

#

time to nuke wsl install?

#

nuked it and it got solved

flat nymph Dec 21, 2024, 4:17 PM

#

rigid fable It's a thing lol

I think a lot of people disable it because "it makes games lag"

rigid fable Dec 21, 2024, 4:17 PM

#

whar

#

bro it's a timer 😭

tawdry mirage Dec 21, 2024, 4:17 PM

#

nyaux confirmed not for gaming because it uses hpet

rigid fable Dec 21, 2024, 4:17 PM

#

bruh

flat nymph Dec 21, 2024, 4:21 PM

#

Idk I think (supposedly) Windows uses it wrong and it's slow/broken on AMD or something

#

I've been arguing about it with my friend a couple of months ago

#

Who also insisted on me using Windows optimizers

rigid fable Dec 21, 2024, 4:22 PM

#

oof 😭🙏

elder shoal Dec 21, 2024, 4:32 PM

#

the hpet is pretty slow

surreal path Dec 21, 2024, 5:21 PM

#

i got sick today

#

😭 😔

#

my sister gave me a throat infection

#

so ima do a coin flip, if a girl txts me within 2 hours ill work on scheduler

#

if no

#

not today

rigid fable Dec 21, 2024, 5:23 PM

#

surreal path i got sick today

ohno

#

😭

surreal path Dec 22, 2024, 1:09 AM

#

@edgy pilot give me a link

edgy pilot Dec 22, 2024, 1:10 AM

#

it would take me the same amount of time as you to go and look for it

surreal path Dec 22, 2024, 1:10 AM

#

nooo

#

wheres the ubsan impl

#

i dont know where to look

edgy pilot Dec 22, 2024, 1:12 AM

#

google

#

or "go to file"

#

on github

#

https://github.com/torvalds/linux/blob/master/lib/ubsan.c

GitHub

linux/lib/ubsan.c at master · torvalds/linux

Linux kernel source tree. Contribute to torvalds/linux development by creating an account on GitHub.

#

smh

tawdry mirage Dec 22, 2024, 1:14 AM

#

edgy pilot https://github.com/torvalds/linux/blob/master/lib/ubsan.c

lmao my luck, i grepped for 2 of the ubsan functions that linux doesn't implement

#

qookie@selenium ~/projects/mlibc/linux-6.1.8 λ rg __ubsan_handle_nonnull_arg
qookie@selenium ~/projects/mlibc/linux-6.1.8 λ rg __ubsan_handle_vla_bound_not_positive
qookie@selenium ~/projects/mlibc/linux-6.1.8 λ

edgy pilot Dec 22, 2024, 1:14 AM

#

hmm I have never encountered those

tawdry mirage Dec 22, 2024, 1:15 AM

#

i've seen __ubsan_handle_vla_bound_not_positive get triggered in the wild (not in managarm, but in foot on linux)

surreal path Dec 22, 2024, 1:16 AM

#

FOUND IT

#

https://github.com/torvalds/linux/blob/master/lib/ubsan.c

GitHub

linux/lib/ubsan.c at master · torvalds/linux

Linux kernel source tree. Contribute to torvalds/linux development by creating an account on GitHub.

tawdry mirage Dec 22, 2024, 1:16 AM

#

lol

kind root Dec 22, 2024, 1:16 AM

#

https://github.com/torvalds/linux/blob/master/lib/ubsan.c

GitHub

linux/lib/ubsan.c at master · torvalds/linux

Linux kernel source tree. Contribute to torvalds/linux development by creating an account on GitHub.

#

I think I found it as well

surreal path Dec 22, 2024, 1:16 AM

#

😭

finite summit Dec 22, 2024, 1:17 AM

#

wait

#

I found it

#

https://github.com/torvalds/linux/blob/master/lib/ubsan.c

GitHub

linux/lib/ubsan.c at master · torvalds/linux

Linux kernel source tree. Contribute to torvalds/linux development by creating an account on GitHub.

kind root Dec 22, 2024, 1:17 AM

#

Can nyaux get more stars than Linux

surreal path Dec 22, 2024, 1:17 AM

#

please someone star nyaux

#

😡

finite summit Dec 22, 2024, 1:17 AM

#

no

surreal path Dec 22, 2024, 1:17 AM

#

why

finite summit Dec 22, 2024, 1:17 AM

#

because if I clicked the button

#

it would unstar it

#

:)

surreal path Dec 22, 2024, 1:18 AM

#

OHHH

#

yayaya

#

:D

finite summit Dec 22, 2024, 1:18 AM

#

edgy pilot Dec 22, 2024, 1:18 AM

#

surreal path please someone star nyaux

I'll star it whenever it runs doom

surreal path Dec 22, 2024, 1:18 AM

#

nooo

#

okay

#

dw ill get there soon

kind root Dec 22, 2024, 1:18 AM

#

Ill star when it gets an EC controller driver

#

Or maybe I already starred it

surreal path Dec 22, 2024, 1:19 AM

#

nooo nooo

#

u didnt

kind root Dec 22, 2024, 1:20 AM

#

Then yeah u have my conditions

surreal path Dec 22, 2024, 1:20 AM

#

kind root Ill star when it gets an EC controller driver

where will require pci

#

nooo

kind root Dec 22, 2024, 1:20 AM

#

What

surreal path Dec 22, 2024, 1:20 AM

#

wait it doesnt need pci??

kind root Dec 22, 2024, 1:20 AM

#

Its two io registers

#

Not a pci device

surreal path Dec 22, 2024, 1:21 AM

#

is there a spec i can read

kind root Dec 22, 2024, 1:21 AM

#

Yes

#

Acpi spec

surreal path Dec 22, 2024, 1:21 AM

#

kk

kind root Dec 22, 2024, 1:21 AM

#

Look at pmos as an example

edgy pilot Dec 22, 2024, 1:21 AM

#

~~I don't really know what embedded controllers are~~

flat nymph Dec 22, 2024, 1:21 AM

#

microcontrollers

kind root Dec 22, 2024, 1:21 AM

#

edgy pilot ~~I don't really know what embedded controllers are~~

Just abstraction over firmware state

#

Get/set a byte

surreal path Dec 22, 2024, 1:21 AM

#

whats firmware state

finite summit Dec 22, 2024, 1:22 AM

#

translation: just some retarted ACPI thing

edgy pilot Dec 22, 2024, 1:22 AM

#

what is it used for

finite summit Dec 22, 2024, 1:22 AM

#

some retarted ACPI thing

flat nymph Dec 22, 2024, 1:22 AM

#

thing which makes your computer go wroom wroom when you press buttons on its case

kind root Dec 22, 2024, 1:22 AM

#

surreal path whats firmware state

Like fan on/off, temperature of something, feature on off, current os, etc

edgy pilot Dec 22, 2024, 1:22 AM

#

flat nymph thing which makes your computer go wroom wroom when you press buttons on its cas...

?

#

what button do you mean

flat nymph Dec 22, 2024, 1:23 AM

#

power button (sometimes)

surreal path Dec 22, 2024, 1:23 AM

#

kind root Like fan on/off, temperature of something, feature on off, current os, etc

wait i set the current os running in firmware state???

#

how to do this

flat nymph Dec 22, 2024, 1:23 AM

#

On laptops it's battery, lid, chargers, fans and other stuff

kind root Dec 22, 2024, 1:24 AM

#

edgy pilot what button do you mean

He means that EC may ask you to run certain AML as a response to an event, which may be a power button press

edgy pilot Dec 22, 2024, 1:24 AM

#

ah

kind root Dec 22, 2024, 1:24 AM

#

surreal path wait i set the current os running in firmware state???

Not u, the aml

surreal path Dec 22, 2024, 1:24 AM

#

kind root Not u, the aml

wait does uacpi automatically do this for me or?

kind root Dec 22, 2024, 1:24 AM

#

Yes

surreal path Dec 22, 2024, 1:24 AM

#

how

finite summit Dec 22, 2024, 1:25 AM

#

magic

kind root Dec 22, 2024, 1:25 AM

#

It tells aml you're windows 11

surreal path Dec 22, 2024, 1:25 AM

#

😭

finite summit Dec 22, 2024, 1:25 AM

#

(which I am)

surreal path Dec 22, 2024, 1:25 AM

#

😭 😭 😭

finite summit Dec 22, 2024, 1:25 AM

#

((nvm that's an insult to obos))

surreal path Dec 22, 2024, 1:25 AM

#

and what if you told aml ur nyaux

finite summit Dec 22, 2024, 1:25 AM

#

it becomes sad

kind root Dec 22, 2024, 1:25 AM

#

It would proceed to off itself

flat nymph Dec 22, 2024, 1:25 AM

#

finite summit ((nvm that's an insult to obos))

about equal stability-wise

edgy pilot Dec 22, 2024, 1:25 AM

#

kind root It tells aml you're windows 11

what is that used for

finite summit Dec 22, 2024, 1:25 AM

#

nooo

#

telling it you're not linux

kind root Dec 22, 2024, 1:26 AM

#

edgy pilot what is that used for

Mostly backwards compat checks

surreal path Dec 22, 2024, 1:26 AM

#

kind root It would proceed to off itself

no but really though

flat nymph Dec 22, 2024, 1:26 AM

#

although idk, windows 11 is really bad on my PCs

edgy pilot Dec 22, 2024, 1:26 AM

#

flat nymph although idk, windows 11 is really bad on my PCs

it's stuttery and laggy?

kind root Dec 22, 2024, 1:26 AM

#

edgy pilot what is that used for

E.g. some devices are not reported entirely, some pretend to be something else, extra init taken care of by aml, etc

flat nymph Dec 22, 2024, 1:26 AM

#

finite summit telling it you're not linux

Even Linux tells ACPI it's Windows

finite summit Dec 22, 2024, 1:26 AM

#

ik

flat nymph Dec 22, 2024, 1:27 AM

#

edgy pilot it's stuttery and laggy?

Everything is crashing all the times

surreal path Dec 22, 2024, 1:27 AM

#

okay

kind root Dec 22, 2024, 1:27 AM

#

surreal path no but really though

It doesn't ask for nyaux, it queries specific os names

edgy pilot Dec 22, 2024, 1:27 AM

#

kind root E.g. some devices are not reported entirely, some pretend to be something else, ...

so just bad design?

kind root Dec 22, 2024, 1:27 AM

#

edgy pilot so just bad design?

Yeah

elder shoal Dec 22, 2024, 1:27 AM

#

if I tell acpi I'm windows 12 do I get access to the secret windwos build

surreal path Dec 22, 2024, 1:27 AM

#

kind root It doesn't ask for nyaux, it queries specific os names

like windows or linux?

edgy pilot Dec 22, 2024, 1:27 AM

#

yes

kind root Dec 22, 2024, 1:27 AM

#

surreal path like windows or linux?

Yes

surreal path Dec 22, 2024, 1:27 AM

#

and if it doesnt find it

#

it kills itself

#

basically

kind root Dec 22, 2024, 1:27 AM

#

It assumes oldest os

surreal path Dec 22, 2024, 1:27 AM

#

oh

#

yeayae i see

#

anyways

kind root Dec 22, 2024, 1:28 AM

#

edgy pilot so just bad design?

Its often untested code too, because they mostly test newest stuff

surreal path Dec 22, 2024, 1:28 AM

#

how long does it take to implment a EC controller driver

kind root Dec 22, 2024, 1:29 AM

#

surreal path how long does it take to implment a EC controller driver

Like an hour

surreal path Dec 22, 2024, 1:29 AM

#

okay

#

first

#

impl these functions

#

yes

#

ec controller driver

edgy pilot Dec 22, 2024, 1:29 AM

#

surreal path impl these functions

That's a single function

kind root Dec 22, 2024, 1:29 AM

#

Ask mishakov for assistance he recently implemented one that works well

surreal path Dec 22, 2024, 1:29 AM

#

@flat nymph

flat nymph Dec 22, 2024, 1:30 AM

#

@surreal path

kind root Dec 22, 2024, 1:30 AM

#

Dont blind ping

surreal path Dec 22, 2024, 1:30 AM

#

😭

kind root Dec 22, 2024, 1:30 AM

#

Just ask when you have questions lol

surreal path Dec 22, 2024, 1:30 AM

#

okay lol

edgy pilot Dec 22, 2024, 1:30 AM

#

@surreal path

#

good night

surreal path Dec 22, 2024, 1:30 AM

#

yes

#

goodnight

#

!!!

kind root Dec 22, 2024, 1:31 AM

#

edgy pilot That's a single function

Needs one copy per each undefined reference meme

flat nymph Dec 22, 2024, 1:31 AM

#

good night @edgy pilot

surreal path Dec 22, 2024, 1:34 AM

#

why is linux bit shiffting data alignment by 1

#

why is linux doing that lol

#

anyone know?

cinder plinth Dec 22, 2024, 1:35 AM

#

because thats how it works

#

alignment is probs a power-of-2 value

tawdry mirage Dec 22, 2024, 1:35 AM

#

the alignment is stored as log_2 of the value

cinder plinth Dec 22, 2024, 1:35 AM

#

or rather

#

the power

#

yea

surreal path Dec 22, 2024, 1:35 AM

#

si yr diubg this to make it not a power of two?

#

so your doing *

cinder plinth Dec 22, 2024, 1:35 AM

#

no

#

log_alignment is an exponent

tawdry mirage Dec 22, 2024, 1:36 AM

#

1<<x is the same as 2**x and 2**log_2(x)=x

surreal path Dec 22, 2024, 1:36 AM

#

i understand math

#

😭

#

dont*

flat nymph Dec 22, 2024, 1:37 AM

#

It's quite easy once you see it

surreal path Dec 22, 2024, 1:37 AM

#

so its making it a power of two

#

???

#

is this correct

flat nymph Dec 22, 2024, 1:38 AM

#

Yes

surreal path Dec 22, 2024, 1:38 AM

#

okay

tawdry mirage Dec 22, 2024, 1:38 AM

#

the alignment is always a power of 2, so instead of storing 2**x as a number you can just store x since getting the alignment from that is simple

flat nymph Dec 22, 2024, 1:38 AM

#

If you have 100.000 and move the point 1 right, you get 1000.00, which is multiplying by 10

#

Is the same with 0b100 to 0b1000

#

You multiply by 2

surreal path Dec 22, 2024, 1:39 AM

#

why are u multipling it by 2

flat nymph Dec 22, 2024, 1:39 AM

#

Just different base

#

The math is the exact same as with decimal numbers

surreal path Dec 22, 2024, 1:40 AM

#

surreal path why are u multipling it by 2

? whats the purpose

flat nymph Dec 22, 2024, 1:40 AM

#

I.e. what you study at school

flat nymph Dec 22, 2024, 1:41 AM

#

surreal path ? whats the purpose

They give you log2(alignment)

#

Soy you convert it back by doing 2^value

surreal path Dec 22, 2024, 1:41 AM

#

added this

flat nymph Dec 22, 2024, 1:41 AM

#

Why are you shifting it right?

surreal path Dec 22, 2024, 1:42 AM

#

sorry

#

mistake

#

there

#

no need to do this anymore

#

actually ill js remove what i js added

tawdry mirage Dec 22, 2024, 1:43 AM

#

surreal path added this

wth is that indentation

surreal path Dec 22, 2024, 1:43 AM

#

this is for v2

flat nymph Dec 22, 2024, 1:43 AM

#

surreal path no need to do this anymore

This is the same as if (data->alignment)

surreal path Dec 22, 2024, 1:43 AM

#

since linux doesnt shift it

surreal path Dec 22, 2024, 1:43 AM

#

flat nymph This is the same as `if (data->alignment)`

oh

#

didnt i take this from u

#

fix it

flat nymph Dec 22, 2024, 1:44 AM

#

I don't have sanitizers

surreal path Dec 22, 2024, 1:44 AM

#

hold on

tawdry mirage Dec 22, 2024, 1:44 AM

#

i mean it's a pretty simple pattern for the compiler to figure out and optimize anyway

surreal path Dec 22, 2024, 1:44 AM

#

oh yeah this

flat nymph Dec 22, 2024, 1:45 AM

#

Yeah, except that the code becomes unreadable when it's full of stuff like this

surreal path Dec 22, 2024, 1:45 AM

#

ill js copy what linux does

tawdry mirage Dec 22, 2024, 1:45 AM

#

tawdry mirage i mean it's a pretty simple pattern for the compiler to figure out and optimize ...

the compiler knows that in (1<<x)-1 x is in [0,64) so the only value of x for which this is true is 0

flat nymph Dec 22, 2024, 1:45 AM

#

Although if Nyaux just gets rewritten every few months...

surreal path Dec 22, 2024, 1:45 AM

#

and nuke the entire file

surreal path Dec 22, 2024, 1:45 AM

#

flat nymph Although if Nyaux just gets rewritten every few months...

it wont

#

im sticking to this

tawdry mirage Dec 22, 2024, 1:45 AM

#

here's the managarm one for reference btw :^) https://github.com/managarm/managarm/blob/master/kernel/thor/generic/ubsan.cpp

flat nymph Dec 22, 2024, 1:46 AM

#

tawdry mirage here's the managarm one for reference btw :^) <https://github.com/managarm/manag...

Maybe I'll steal it later memedown

elder shoal Dec 22, 2024, 1:46 AM

#

ubsan is boring

#

real programmers just dont create ub

flat nymph Dec 22, 2024, 1:47 AM

#

Yeah

#

And clang inserts ud2

tawdry mirage Dec 22, 2024, 1:47 AM

#

not always

flat nymph Dec 22, 2024, 1:47 AM

#

Or optimizes shit out and you get insane bugs ultrameme

tawdry mirage Dec 22, 2024, 1:48 AM

#

yeah

flat nymph Dec 22, 2024, 1:49 AM

#

My kernel doesn't have framebuffer output so there is nowhere to complain to about UB (sanitizers) galaxybrain

surreal path Dec 22, 2024, 1:59 AM

#

okay i did what linux does for v1

#

ish

#

im js gonna follow up with what linux is doing and if there is any missing functions reference the linux functions for them

#

nvm linux is missing some clang functions???

#

not even managarm does it?

#

the hell

orchid dawn Dec 22, 2024, 2:04 AM

#

flat nymph Even Linux tells ACPI it's Windows

wait does it really
that's wild

tawdry mirage Dec 22, 2024, 2:05 AM

#

orchid dawn wait does it really that's wild

yea because firmware developers started putting in buggy and untested code paths in aml for linux

#

so now linux no longer says it's linux

surreal path Dec 22, 2024, 2:05 AM

#

im taking obos's ubsan im too sick for this

finite summit Dec 22, 2024, 2:09 AM

#

you mean sortix' ubsan, right

surreal path Dec 22, 2024, 2:09 AM

#

yea

#

huh???

#

it has a complete type

#

bro

#

oh right

#

nvm

#

well clang compilers

#

it works perfectly on debug build

#

oh waits

#

its running at o2

#

think

#

yea it is

#

i ran nyaux on o3

#

it worked fine???

#

less goo
??

#

nyaux on clang???

#

worked perfectly?

#

even on -Ofast??

#

damn

#

well nyaux runs on clang

#

:)

#

on tcg

#

gcc

#

-O2

#

oh

#

on clang

#

this happens

finite summit Dec 22, 2024, 2:24 AM

#

I will never understand how nyaux has more "committed memory" than obos when it doesn't do half as much

surreal path Dec 22, 2024, 2:24 AM

#

even tho

#

i do return it???

#

wtf is clang doing

elder shoal Dec 22, 2024, 2:24 AM

#

surreal path on tcg

how is it so slow

#

its almost impressive

surreal path Dec 22, 2024, 2:24 AM

#

ubsan says nothing

surreal path Dec 22, 2024, 2:25 AM

#

elder shoal how is it so slow

ik

#

idk why either

surreal path Dec 22, 2024, 2:25 AM

#

surreal path

idk what to do

#

it said it foudn it

#

and didnt return it?

#

bro what

#

so

#

why is the if statement succeding

#

omg

#

gcc

#

im stupid

#

and gcc didnt catch this

#

yay im sticking to clang

#

:)

surreal path Dec 22, 2024, 2:28 AM

#

surreal path on tcg

#

slightly better

#

with clang

#

gcc probs generated the call

#

to return the value

#

or smthin

finite summit Dec 22, 2024, 2:29 AM

#

surreal path yay im sticking to clang

meanwhile an ignorant nyaux, just a mere hour or two ago:

infy we hate clang am i right or am i right

surreal path Dec 22, 2024, 2:29 AM

#

finite summit meanwhile an ignorant nyaux, just a mere hour or two ago: > infy we hate clang a...

yes

#

😭

#

ummm

#

#

on kvm???

#

thats

#

38k

#

wtf

#

#

hitting 43k

#

@finite summit

#

whats the highest obos has

finite summit Dec 22, 2024, 2:32 AM

#

with or without bump allocator?

surreal path Dec 22, 2024, 2:32 AM

#

without

finite summit Dec 22, 2024, 2:32 AM

#

no

surreal path Dec 22, 2024, 2:32 AM

#

u dont have anything but a bump allocator???

#

or

#

are u too scared

#

hold on

finite summit Dec 22, 2024, 2:33 AM

#

no, I'm not telling you

surreal path Dec 22, 2024, 2:33 AM

#

lemme see

#

uacpi readme

#

trl

finite summit Dec 22, 2024, 2:33 AM

#

nooo

#

you don't have stuff implemented

#

so yours is unofficial

surreal path Dec 22, 2024, 2:33 AM

#

WE BEAT OBOS

#

WE BEAT OBOS

#

WE BEAT OBOS CHAT

finite summit Dec 22, 2024, 2:33 AM

#

no you didn't

#

you're unimplemented

#

no PCI helpers

#

https://tenor.com/view/sus-cat-cat-stare-stare-bruh-cat-really-n-gif-25597234

Tenor

surreal path Dec 22, 2024, 2:34 AM

#

nooo

finite summit Dec 22, 2024, 2:34 AM

#

no swapping?

surreal path Dec 22, 2024, 2:34 AM

#

i have a vmm

finite summit Dec 22, 2024, 2:34 AM

#

https://tenor.com/view/sus-cat-cat-stare-stare-bruh-cat-really-n-gif-25597234

Tenor

surreal path Dec 22, 2024, 2:34 AM

#

nooo

finite summit Dec 22, 2024, 2:34 AM

#

no CoW

#

https://tenor.com/view/sus-cat-cat-stare-stare-bruh-cat-really-n-gif-25597234

Tenor

surreal path Dec 22, 2024, 2:34 AM

#

nooo nooo

finite summit Dec 22, 2024, 2:34 AM

#

no VFS?

#

https://tenor.com/view/sus-cat-cat-stare-stare-bruh-cat-really-n-gif-25597234

Tenor

surreal path Dec 22, 2024, 2:34 AM

#

soon ™️

finite summit Dec 22, 2024, 2:34 AM

#

no scheduler?

#

https://tenor.com/view/sus-cat-cat-stare-stare-bruh-cat-really-n-gif-25597234

Tenor

surreal path Dec 22, 2024, 2:34 AM

#

TMRW

#

IM SICK

#

😭

finite summit Dec 22, 2024, 2:35 AM

#

no locking primitives?

#

https://tenor.com/view/sus-cat-cat-stare-stare-bruh-cat-really-n-gif-25597234

Tenor

surreal path Dec 22, 2024, 2:35 AM

#

we have spinlocks

finite summit Dec 22, 2024, 2:35 AM

#

finite summit no locking primitives?

*almost no

surreal path Dec 22, 2024, 2:35 AM

#

nooo

finite summit Dec 22, 2024, 2:35 AM

#

no suspend to S3 support?

#

https://tenor.com/view/sus-cat-cat-stare-stare-bruh-cat-really-n-gif-25597234

Tenor

surreal path Dec 22, 2024, 2:35 AM

#

nooo nooo

finite summit Dec 22, 2024, 2:35 AM

#

no driver interface?

#

https://tenor.com/view/sus-cat-cat-stare-stare-bruh-cat-really-n-gif-25597234

Tenor

surreal path Dec 22, 2024, 2:35 AM

#

nooo

#

no need to flex

#

anymore

#

please

#

i submit

surreal path Dec 22, 2024, 2:36 AM

#

surreal path

@kind root

#

can we update the speeds

finite summit Dec 22, 2024, 2:37 AM

#

not until you get pci

surreal path Dec 22, 2024, 2:37 AM

#

nooo

finite summit Dec 22, 2024, 2:37 AM

#

also:

[uACPI][INFO]: successfully loaded 1 AML blob, 1704 ops in 8ms (avg 199539/s)```

#

I got this on my other pc

surreal path Dec 22, 2024, 2:38 AM

#

dman nvm

finite summit Dec 22, 2024, 2:38 AM

#

with the scheduler disabled on uacpi init

surreal path Dec 22, 2024, 2:38 AM

#

i submit

finite summit Dec 22, 2024, 2:43 AM

#

finite summit also: ``` [uACPI][INFO]: successfully loaded 1 AML blob, 1704 ops in 8ms (avg 19...

idk why, but everything I do on this pc is magically 10x faster

cinder plinth Dec 22, 2024, 2:46 AM

#

surreal path WE BEAT OBOS

tf is proxima

finite summit Dec 22, 2024, 2:46 AM

#

@brisk zenith

#

it's his os

cinder plinth Dec 22, 2024, 2:47 AM

#

ah

kind root Dec 22, 2024, 9:19 AM

#

finite summit I got this on my other pc

Only qemu counts lol

#

Oh wait that is qemu I think?

#

Which cpu

kind root Dec 22, 2024, 9:19 AM

#

finite summit not until you get pci

^

#

And not until your mutex helpers do something

finite summit Dec 22, 2024, 9:49 AM

#

kind root Oh wait that is qemu I think?

It is

finite summit Dec 22, 2024, 9:50 AM

#

kind root Which cpu

It is 5 am, so I will tell the cpu later

#

Actually

finite summit Dec 22, 2024, 9:51 AM

#

kind root Which cpu

Intel i5 4570

kind root Dec 22, 2024, 9:55 AM

#

finite summit Intel i5 4570

thats the same as leaderboard lol

#

what changed

finite summit Dec 22, 2024, 9:56 AM

#

The machine and environment

#

Wait it was using -nographic with

#

qemu

thorn bramble Dec 22, 2024, 10:01 AM

#

i dont think that matters much

surreal path Dec 22, 2024, 4:15 PM

#

man im so sick

#

ugh

#

i took a bunch of medience

#

earlier

#

still sick

#

this is legit cringe

#

how tf am i gonna work on nyaux like this

#

nooo

edgy pilot Dec 22, 2024, 4:38 PM

#

surreal path man im so sick

just don't

surreal path Dec 22, 2024, 4:39 PM

#

edgy pilot just don't

but i wanna

#

nooo

thorn bramble Dec 22, 2024, 5:58 PM

#

i believe what ilobilo was trying to say is just don't be sick

hollow goblet Dec 22, 2024, 6:43 PM

#

tbh i work on projects better when I'm sick

surreal path Dec 22, 2024, 7:09 PM

#

hollow goblet tbh i work on projects better when I'm sick

bru

#

do you like the pain

#

the constant coughing

#

do u like

#

that

hollow goblet Dec 22, 2024, 7:11 PM

#

nah not that

#

coughing is pain

#

but like

#

when i'm calling in sick to school

#

with a fever or something

#

or a runny nose

#

or diarrhea

#

it's fun

#

especially diarrhea

edgy pilot Dec 22, 2024, 7:18 PM

#

can't

#

you

#

people

#

type

#

messages

#

on

#

a

#

single

#

line?

#

it's

#

very

#

annoying

#

to

#

read

#

this

#

way

surreal path Dec 22, 2024, 7:21 PM

#

meme

hollow goblet Dec 22, 2024, 7:29 PM

#

edgy pilot way

sorry but this is how my brain works

#

i cannot type a full sentence

#

wait i just

#

did

edgy pilot Dec 22, 2024, 7:29 PM

#

instead of pressing send, imagine that you did and continue typing

hollow goblet Dec 22, 2024, 7:29 PM

#

ok i

edgy pilot Dec 22, 2024, 7:29 PM

#

it's not hard

hollow goblet Dec 22, 2024, 7:29 PM

#

will try

#

ok that last one was a joke

hollow goblet Dec 22, 2024, 7:30 PM

#

hollow goblet especially diarrhea

yea but seriously i enjoy when i need to run to the bathroom immediately because it acts as a deadline

surreal path Dec 22, 2024, 7:31 PM

#

me looking at the thread eating my food be like:

#

https://tenor.com/view/eating-the-chip-chips-chip-eating-chip-man-eating-three-chips-gif-18885184

Tenor

hollow goblet Dec 22, 2024, 7:31 PM

#

nyauxmaster

#

next time you get diarrhea please try this. i guarantee you it will work wonders

surreal path Dec 22, 2024, 7:32 PM

#

ok

hollow goblet Dec 22, 2024, 7:33 PM

#

i set myself a goal and i award myself with a bathroom break and if i can't do it until i shit myself, that's a punishment

edgy pilot Dec 22, 2024, 7:34 PM

#

🤨

#

you shit yourself?

hollow goblet Dec 22, 2024, 7:37 PM

#

edgy pilot you shit yourself?

yea this is about doing projects with diarrhea

#

omg pastafarian

edgy pilot Dec 22, 2024, 7:47 PM

#

R'amen brother

hollow goblet Dec 22, 2024, 7:51 PM

#

sadly i am not a pastafarian

#

i am an atheist alevi

#Nyaux

(gdb) pt -walk 0xffffffff80001000 Page table walk for VA = 0xffffffff80001000

(gdb) pt -walk 0xffffffff80087000 Page table walk for VA = 0xffffffff80087000

(gdb) pt -walk 0xffffffff80095000 Page table walk for VA = 0xffffffff80095000

(gdb) pt -walk 0xffffffff80001000
Page table walk for VA = 0xffffffff80001000

(gdb) pt -walk 0xffffffff80087000
Page table walk for VA = 0xffffffff80087000

(gdb) pt -walk 0xffffffff80095000
Page table walk for VA = 0xffffffff80095000