Re: [RFC PATCH 0/1] Add AMDGPU_INFO_GUILTY_APP ioctl

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Em 01/05/2023 16:24, Alex Deucher escreveu:
On Mon, May 1, 2023 at 2:58 PM André Almeida <andrealmeid@xxxxxxxxxx> wrote:

I know that devcoredump is also used for this kind of information, but I believe
that using an IOCTL is better for interfacing Mesa + Linux rather than parsing
a file that its contents are subjected to be changed.

Can you elaborate a bit on that?  Isn't the whole point of devcoredump
to store this sort of information?


I think that devcoredump is something that you could use to submit to a bug report as it is, and then people can read/parse as they want, not as an interface to be read by Mesa... I'm not sure that it's something that I would call an API. But I might be wrong, if you know something that uses that as an API please share.

Anyway, relying on that for Mesa would mean that we would need to ensure stability for the file content and format, making it less flexible to modify in the future and probe to bugs, while the IOCTL is well defined and extensible. Maybe the dump from Mesa + devcoredump could be complementary information to a bug report.



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