karolherbst

karolherbst , vor 22 Tagen an Random Englisch

soooo.. in OpenCL C builtins like get_global_offset have to return defined values on out of bound accesses, but apparently Intel's driver also gets this wrong. Now I'm considering if I should keep it broken as well, or actually fix it as defined in the spec...

@bashbaug any thoughts on this? Maybe we should add OpenCL CTS tests for this and annoy everybody else with this?

karolherbst OP , vor 18 Tagen

@bashbaug we have some custom CL tests in piglit and this one seems to fail on my Intel one: https://gitlab.freedesktop.org/mesa/piglit/-/blob/main/tests/cl/program/execute/global-offset.cl?ref_type=heads#L97

It's the last "[test]" section in that file in case you want to adjust your local test program.

Here it returns "3" instead of "0" in the last line.

karolherbst OP , vor 18 Tagen

@bashbaug I think this issue should exist with all builtins, but I'm wondering why the SPIRV-Translator is the best place, because I was seeing this with Intel-compute-runtime using OpenCL C as well.

Not saying that it won't make sense to fix it in the translator, but I think it depends on what's meant with "The mapping from an OpenCL C built-in function to the SPIR-V BuiltIn is informational and non-normative." in the env spec.

karolherbst , vor 19 Tagen an Random Englisch

what a relief to be honest

karolherbst OP , vor 18 Tagen

@jonkoops @karl I just hope that whatever government will be formed after that won't do the same mistakes as we e.g. see in Germany.

But it's going to be tough I bet.

18+ karolherbst , vor 21 Tagen an Random Englisch

the social democratic leadership sees austerity as the only option.

The same as 95 years ago.

It's really heartbreaking seeing political leaders doing the same mistakes over and over again.

karolherbst OP , vor 21 Tagen

@nCrazed I'm sure they do it deliberately in the meaning of "that's how the system works and that's what we have to do", but not deliberately in the sense of "haha, we want to ruin our system".

And people like the FDP finance minister just say, that they don't believe the studies claiming it does...

Maybe it's deliberate from the "liberals", but uhh.. I think they are just ideologically blinded.

karolherbst , vor 23 Tagen an Random Englisch

I think the funniest part of the new POSIX version is the removal of "ioctl"

karolherbst OP , vor 23 Tagen

@VegaHarmonia yeah, it was kinda weird having it in posix in the first place, because it was all implementation defined anyway. So they removed it, because POSIX really has no business there.

karolherbst OP , vor 23 Tagen

@VegaHarmonia it's mostly funny in regards to POSIX purists and them not wanting to use non POSIX stuff in software.

Granted, you almost never need to use ioctl directly in most cases, but still...

karolherbst , vor 23 Tagen an Random Englisch

I've finally finished the work to fix the spirv linker so it can link programs together originating from llvm-17 or newer.

Yes, this is a dirty workaround, but apparently we have no other options at this point.

https://github.com/KhronosGroup/SPIRV-Tools/pull/5534

karolherbst OP , vor 23 Tagen

@Man2Dev this PR only really matters if you link two spir-vs together, which I think besides mesa almost nobody is doing anyway, I think.

TheEvilSkeleton , vor 24 Tagen an Random Englisch

"Keep politics out of FOSS" is an interesting political statement

karolherbst , vor 24 Tagen

@TheEvilSkeleton what did I miss, or is it that new fancy web browser thing?

18+ karolherbst , vor 25 Tagen an Random Englisch

protect yourself from all openssh vulnerabilities with this little trick:

systemctl stop sshd; exit

18+ karolherbst OP , vor 25 Tagen

@brayd I've warned y'all

karolherbst , vor 25 Tagen an Random Englisch

anyway, some 🦀 content today:

I'm considering using serde in rusticl, however my use case is not to parse arbitrary data, but always structs with no custom data allowed. In short: the struct defines the data layout.

And we have some helpers in mesa dealing with reading/writing data to a blob.

So I'm wondering if a custom serde serialize/deserializer is what I want, or if I want something more special/focused as serde seems to be too generic for my use case here.

karolherbst OP , vor 25 Tagen

@matt it's C code and we use it for e.g. serializing GPU shaders so it can be stored in a shader cache. But it's all manual serialization and deserialization code, it's just mostly there to deal with alignment, padding and buffer overruns (like you can check if the buffer used for reading/writing wasn't big enough and handle it).

So, because writing the code yourself is annoying I was wondering if something can take a struct and generate the code for me in rust.

karolherbst , vor 25 Tagen an Random Englisch

soo.. apparently the broadcom VC4+ GPUs (the ones used in raspberry pis and stuff) do not support format-less image writes, sooo.. supporting OpenCL images in #rusticl on that hardware will be a bit "difficult", because it needs to be handled within the kernel...

I should probably check out how other drivers are handling this, because either I'm missing something here or some other vendors are kinda in the same situation (not for all hardware, probably just older GPUs).

karolherbst OP , vor 25 Tagen

@tnt format not known at compile time

ExpiredPopsicle , vor 25 Tagen an Random Englisch

#XMPP is what you get when you design a protocol around edging an XML parser.

karolherbst , vor 25 Tagen

@mary @ExpiredPopsicle okay, so the <zero/> and <one/> part is what it is, but one thing actually got my attention: "if a server supports Binary XMPP it advertises a special DNS SRV record _bxmpp._tcp"

And I got curious: Does XMPP uses DNS for anything real? Yes it does! It totally does :)

https://wiki.xmpp.org/web/Tech_pages/XEP-0368#DNS_setup

karolherbst , vor 25 Tagen

@mary @ExpiredPopsicle there is more info here: https://wiki.xmpp.org/web/SRV_Records

but I think the tldr is, that XMPP clients need to query those DNS records in order to figure out how to connect to a domain/XMPP server + specifying backup domains.

karolherbst , vor 25 Tagen an Random Englisch

good that I've disabled remote SSH access on my router a while ago 🙃

karolherbst OP , vor 25 Tagen

@lkundrak fun, but the only port exposed to the internet is 443 here.

karolherbst OP , vor 25 Tagen

@lkundrak ohh and 68 because... $reasons