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From: Philipp Stanner <phasta@kernel.org>
To: "Lyude Paul" <lyude@redhat.com>,
	"Danilo Krummrich" <dakr@kernel.org>,
	"David Airlie" <airlied@gmail.com>,
	"Simona Vetter" <simona@ffwll.ch>,
	"Matthew Brost" <matthew.brost@intel.com>,
	"Philipp Stanner" <phasta@kernel.org>,
	"Christian König" <ckoenig.leichtzumerken@gmail.com>,
	"Maarten Lankhorst" <maarten.lankhorst@linux.intel.com>,
	"Maxime Ripard" <mripard@kernel.org>,
	"Thomas Zimmermann" <tzimmermann@suse.de>,
	"Tvrtko Ursulin" <tvrtko.ursulin@igalia.com>
Cc: dri-devel@lists.freedesktop.org, nouveau@lists.freedesktop.org,
	linux-kernel@vger.kernel.org
Subject: [PATCH v2 3/6] drm/sched: Warn if pending list is not empty
Date: Thu, 24 Apr 2025 11:55:33 +0200	[thread overview]
Message-ID: <20250424095535.26119-5-phasta@kernel.org> (raw)
In-Reply-To: <20250424095535.26119-2-phasta@kernel.org>

drm_sched_fini() can leak jobs under certain circumstances.

Warn if that happens.

Signed-off-by: Philipp Stanner <phasta@kernel.org>
---
 drivers/gpu/drm/scheduler/sched_main.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/gpu/drm/scheduler/sched_main.c b/drivers/gpu/drm/scheduler/sched_main.c
index c2ad6c70bfb6..0c56b85c574f 100644
--- a/drivers/gpu/drm/scheduler/sched_main.c
+++ b/drivers/gpu/drm/scheduler/sched_main.c
@@ -1457,6 +1457,9 @@ void drm_sched_fini(struct drm_gpu_scheduler *sched)
 	sched->ready = false;
 	kfree(sched->sched_rq);
 	sched->sched_rq = NULL;
+
+	if (!list_empty(&sched->pending_list))
+		dev_err(sched->dev, "Tearing down scheduler while jobs are pending!\n");
 }
 EXPORT_SYMBOL(drm_sched_fini);
 
-- 
2.48.1


  parent reply	other threads:[~2025-04-24  9:56 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-04-24  9:55 [PATCH v2 0/6] drm/sched: Fix memory leaks in drm_sched_fini() Philipp Stanner
2025-04-24  9:55 ` [PATCH v2 1/6] drm/sched: Fix teardown leaks with waitqueue Philipp Stanner
2025-05-16  9:19   ` Tvrtko Ursulin
2025-04-24  9:55 ` [PATCH v2 2/6] drm/sched: Prevent teardown waitque from blocking too long Philipp Stanner
2025-05-16  9:33   ` Tvrtko Ursulin
2025-05-16  9:53     ` Danilo Krummrich
2025-05-16 10:19       ` Tvrtko Ursulin
2025-05-16 10:54         ` Danilo Krummrich
2025-05-16 11:35           ` Tvrtko Ursulin
2025-05-16 12:00             ` Danilo Krummrich
2025-05-16 15:48               ` Tvrtko Ursulin
2025-05-16  9:54     ` Philipp Stanner
2025-05-16 10:34       ` Tvrtko Ursulin
2025-04-24  9:55 ` Philipp Stanner [this message]
2025-05-16  9:40   ` [PATCH v2 3/6] drm/sched: Warn if pending list is not empty Tvrtko Ursulin
2025-04-24  9:55 ` [PATCH v2 4/6] drm/nouveau: Add new callback for scheduler teardown Philipp Stanner
2025-04-24  9:55 ` [PATCH v2 5/6] drm/nouveau: Remove waitque for sched teardown Philipp Stanner
2025-04-24  9:55 ` [PATCH v2 6/6] drm/sched: Port unit tests to new cleanup design Philipp Stanner
2025-05-08 11:03   ` Philipp Stanner
2025-05-08 12:51     ` Tvrtko Ursulin
2025-05-12  8:00       ` Philipp Stanner
2025-05-14  8:30         ` Tvrtko Ursulin
2025-05-14  9:19           ` Philipp Stanner
2025-05-16  9:00             ` Tvrtko Ursulin

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