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Message-ID: <20250324185728.45857-5-phasta@kernel.org>
Date: Mon, 24 Mar 2025 19:57:27 +0100
From: Philipp Stanner <phasta@...nel.org>
To: Lyude Paul <lyude@...hat.com>,
Danilo Krummrich <dakr@...nel.org>,
David Airlie <airlied@...il.com>,
Simona Vetter <simona@...ll.ch>,
Matthew Brost <matthew.brost@...el.com>,
Philipp Stanner <phasta@...nel.org>,
Christian König <ckoenig.leichtzumerken@...il.com>,
Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
Maxime Ripard <mripard@...nel.org>,
Thomas Zimmermann <tzimmermann@...e.de>,
Tvrtko Ursulin <tvrtko.ursulin@...lia.com>
Cc: dri-devel@...ts.freedesktop.org,
nouveau@...ts.freedesktop.org,
linux-kernel@...r.kernel.org
Subject: [RFC PATCH 3/5] drm/sched: Warn if pending list is not empty
drm_sched_fini() can leak jobs under certain circumstances.
Warn if that happens.
Signed-off-by: Philipp Stanner <phasta@...nel.org>
---
drivers/gpu/drm/scheduler/sched_main.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/gpu/drm/scheduler/sched_main.c b/drivers/gpu/drm/scheduler/sched_main.c
index 87acbcb1a821..4f8cc208a231 100644
--- a/drivers/gpu/drm/scheduler/sched_main.c
+++ b/drivers/gpu/drm/scheduler/sched_main.c
@@ -1455,6 +1455,10 @@ 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, "%s: Tearing down scheduler while jobs are pending!\n",
+ __func__);
}
EXPORT_SYMBOL(drm_sched_fini);
--
2.48.1
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