Re: [PATCH i-g-t 0/1] tests/xe_vm: Add oversubscribe concurrent bind stress test

["Thomas Hellström" <thomas.hellstrom@linux.intel.com>]

Hi,

On Wed, 2026-02-18 at 16:44 +0000, Sobin Thomas wrote:
> Add an xe_vm subtest that oversubscribes VRAM and issues
> concurrent binds into a single VM (scratch-page mode) to
> reproduce the dma-resv/bind race found under memory pressure.
> Prior coverage lacked any case that combined multi-process bind
> pressure with VRAM oversubscription, so bind/submit could
> panic (NULL deref in xe_pt_stage_bind) instead of failing cleanly.
> The new test expects successful completion or ENOMEM/EDEADLK.

No need to add a cover-letter when there is only a single patch. Just
add all information in the patch cover-message.

Are you seeing an EDEADLK error? That sounds like a KMD bug.

Thanks,
Thomas


> 
> Sobin Thomas (1):
>   tests/xe_vm: Add oversubscribe concurrent bind stress
> 
>  tests/intel/xe_vm.c | 421
> ++++++++++++++++++++++++++++++++++++++++++++
>  1 file changed, 421 insertions(+)