Re: [PATCH v3 0/4] scftorture: Avoid kfree from IRQ context.

From: Boqun Feng
Date: Fri Nov 08 2024 - 12:57:49 EST


On Fri, Nov 08, 2024 at 11:39:30AM +0100, Sebastian Andrzej Siewior wrote:
> Hi,
>
> Paul reported kfree from IRQ context in scftorture which is noticed by
> lockdep since the recent PROVE_RAW_LOCK_NESTING switch.
>
> The last patch in this series adresses the issues, the other things
> happened on the way.
>
> v2...v3:
> - The clean up on module exit must not be done with thread numbers.
> Reported by Boqun Feng.
> - Move the clean up on module exit prior to torture_cleanup_end().
> Reported by Paul.
>
> v1...v2:
> - Remove kfree_bulk(). I get more invocations per report without it.
> - Pass `cpu' to scf_cleanup_free_list in scftorture_invoker() instead
> of scfp->cpu. The latter is the thread number which can be larger
> than the number CPUs leading to a crash in such a case. Reported by
> Boqun Feng.
> - Clean up the per-CPU lists on module exit. Reported by Boqun Feng.
>
> Sebastian
>

For the whole series:

Reviewed-by: Boqun Feng <boqun.feng@xxxxxxxxx>
Tested-by: Boqun Feng <boqun.feng@xxxxxxxxx>

Regards,
Boqun