[Mesa-dev] [PATCH 0/9] RadeonSI LLVM crash workaround for Ubuntu 18.04
Juan A. Suarez Romero
jasuarez at igalia.com
Wed Apr 18 12:00:52 UTC 2018
On Mon, 2018-04-16 at 20:52 -0400, Marek Olšák wrote:
> Hi,
>
> This cleanup is motivated by a Mesa/LLVM crash on Ubuntu 18.04.
> It happens inside gallivm_dispose_target_library_info and only
> LLVM 5.0 and 6.0 seem to be affected.
Should this series (or part of this) be nominated for stable?
J.A.
>
> The workaround is to move target_library_info into the context
> (1 instance) and the screen (1 instance per compiler thread) to reduce
> the number of times it's created and deleted, and then simply leak
> it because we can't destroy it without a crash.
>
> The series might also result in some non-measurable compile time
> savings, andd the last patch decreases shader-db run times
> significantly on many-core CPUs. (there is no expected effect on apps)
>
> Please review.
>
> Thanks,
> Marek
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