Re: arm64: fp-stress: BUG: KFENCE: memory corruption in fpsimd_release_task

[Will Deacon]

Naresh,

On Tue, May 16, 2023 at 02:44:49PM +0100, Will Deacon wrote:
> On Tue, May 16, 2023 at 11:58:40AM +0530, Naresh Kamboju wrote:
> > Following kernel BUG noticed while running selftests arm64 fp-stress
> > running stable rc kernel versions 6.1.29-rc1 and 6.3.3-rc1.
> 
> Is there a known-good build so that we could attempt a bisection?

FWIW, I've been trying (and failing) all day to reproduce this in QEMU.
I matched the same VL configuration as you have in the fastmodel and
tried enabling additional memory debugging options too, but I'm yet to
see a kfence splat (or any other splat fwiw).

How often do you see this?

Will