Re: [PATCH] tests/intel/xe_exec_system_allocator: Ignore expected CAT error in fault subtest

[Matthew Brost <matthew.brost@intel.com>]

On Mon, Jul 06, 2026 at 06:17:52PM +0000, Shuicheng Lin wrote:
> The 'fault' subtest submits an exec with a bogus batch address. The
> kernel nacks the unresolvable pagefault, which the GuC escalates to a
> memory CAT error and engine reset. The resulting 'CAT error' dmesg
> messages are expected, not a real failure.
> 
> Emit an ignore-dmesg regex to suppress them in CI. It matches both
> 'Memory CAT error reported by GuC!' and 'Engine memory CAT error'
> messages.
> 
> Signed-off-by: Shuicheng Lin <shuicheng.lin@intel.com>

Reviewed-by: Matthew Brost <matthew.brost@intel.com>

> ---
>  tests/intel/xe_exec_system_allocator.c | 4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)
> 
> diff --git a/tests/intel/xe_exec_system_allocator.c b/tests/intel/xe_exec_system_allocator.c
> index 24fc5b708d..fd7520e519 100644
> --- a/tests/intel/xe_exec_system_allocator.c
> +++ b/tests/intel/xe_exec_system_allocator.c
> @@ -2752,10 +2752,12 @@ int igt_main()
>  	igt_subtest("threads-shared-alloc-many-stride-malloc-race")
>  		threads(fd, 1, 128, 0, 256, RACE | SHARED_ALLOC, false);
>  
> -	igt_subtest_f("fault")
> +	igt_subtest_f("fault") {
> +		igt_emit_ignore_dmesg_regex("CAT error");
>  		xe_for_each_engine(fd, hwe)
>  			test_exec(fd, hwe, 4, 1, SZ_2M, 0, 0, NULL, NULL,
>  				  FAULT, NULL);
> +	}
>  
>  	for (const struct section *s = psections; s->name; s++) {
>  		igt_subtest_f("partial-%s", s->name)
> -- 
> 2.43.0
>