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* [PATCH] drm/xe: Fix NPD when saving default context
@ 2025-05-28 21:42 Lucas De Marchi
  2025-05-28 21:47 ` ✓ CI.Patch_applied: success for " Patchwork
                   ` (9 more replies)
  0 siblings, 10 replies; 14+ messages in thread
From: Lucas De Marchi @ 2025-05-28 21:42 UTC (permalink / raw)
  To: intel-xe
  Cc: matthew.brost, dri-devel, Lucas De Marchi, Christian König,
	Pierre-Eric Pelloux-Prayer, Philipp Stanner

xef is only valid if it's a job from userspace.  For in-kernel jobs it
causes a NPD like below:

        <4> [] RIP: 0010:xe_sched_job_create+0xbd/0x390 [xe]
	...
        <4> [] Call Trace:
        <4> []  <TASK>
        <4> []  __xe_bb_create_job+0xa2/0x240 [xe]
        <4> []  ? find_held_lock+0x31/0x90
        <4> []  ? xa_find_after+0x12c/0x250
        <4> []  xe_bb_create_job+0x6e/0x380 [xe]
        <4> []  ? xa_find_after+0x136/0x250
        <4> []  ? __drm_dev_dbg+0x7d/0xb0
        <4> []  xe_gt_record_default_lrcs+0x542/0xb00 [xe]

Since drm_file starts with 1 for the unique id, just use 0 for the
in-kernel jobs.

Fixes: 2956554823ce ("drm/sched: Store the drm client_id in drm_sched_fence")
Cc: Christian König <christian.koenig@amd.com>
Cc: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Cc: Philipp Stanner <phasta@kernel.org>
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
---
 drivers/gpu/drm/xe/xe_sched_job.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/xe/xe_sched_job.c b/drivers/gpu/drm/xe/xe_sched_job.c
index 5921293b25db3..d21bf8f269640 100644
--- a/drivers/gpu/drm/xe/xe_sched_job.c
+++ b/drivers/gpu/drm/xe/xe_sched_job.c
@@ -114,7 +114,7 @@ struct xe_sched_job *xe_sched_job_create(struct xe_exec_queue *q,
 	xe_exec_queue_get(job->q);
 
 	err = drm_sched_job_init(&job->drm, q->entity, 1, NULL,
-				 q->xef->drm->client_id);
+				 q->xef ? q->xef->drm->client_id : 0);
 	if (err)
 		goto err_free;
 




^ permalink raw reply related	[flat|nested] 14+ messages in thread

end of thread, other threads:[~2025-05-29 14:24 UTC | newest]

Thread overview: 14+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2025-05-28 21:42 [PATCH] drm/xe: Fix NPD when saving default context Lucas De Marchi
2025-05-28 21:47 ` ✓ CI.Patch_applied: success for " Patchwork
2025-05-28 21:47 ` ✓ CI.checkpatch: " Patchwork
2025-05-28 21:49 ` ✓ CI.KUnit: " Patchwork
2025-05-28 21:51 ` [PATCH] " Matthew Brost
2025-05-29 14:23   ` Lucas De Marchi
2025-05-28 21:59 ` ✓ CI.Build: success for " Patchwork
2025-05-28 22:02 ` ✓ CI.Hooks: " Patchwork
2025-05-28 22:03 ` ✓ CI.checksparse: " Patchwork
2025-05-28 22:24 ` ✓ Xe.CI.BAT: " Patchwork
2025-05-29  3:33 ` ✗ Xe.CI.Full: failure " Patchwork
2025-05-29  4:55 ` [PATCH] " Upadhyay, Tejas
2025-05-29  4:59   ` Matthew Brost
2025-05-29 14:24   ` Lucas De Marchi

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