From: bugzilla-daemon@bugzilla.kernel.org
To: dri-devel@lists.freedesktop.org
Subject: [Bug 214621] WARNING: CPU: 3 PID: 521 at drivers/gpu/drm/ttm/ttm_bo.c:409 ttm_bo_release+0xb64/0xe40 [ttm]
Date: Thu, 04 Nov 2021 12:39:54 +0000 [thread overview]
Message-ID: <bug-214621-2300-pPEaNYx0Kb@https.bugzilla.kernel.org/> (raw)
In-Reply-To: <bug-214621-2300@https.bugzilla.kernel.org/>
https://bugzilla.kernel.org/show_bug.cgi?id=214621
--- Comment #13 from Christian König (christian.koenig@amd.com) ---
(In reply to Lang Yu from comment #12)
> The warning was just merged into mainline 5.15.0 on Tue Nov 2 16:47:49
> 2021(commit 56d33754481f). Not sure Erhard F.'s build contains this warning.
Good point.
> And we can also add a debug WARN() into amdgpu_dma_buf_pin() to see who
> pinned dma_buf.
I thought about that as well, the problem is that we call this function very
often (e.g. 60 times a second if we play a 60fps video or similar).
Saying that I could as well be misguided by the dma_buf_release() function in
the call stack. This could potentially also be a bug in DAL/DC where we forget
to unpin a BO in some situation.
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next prev parent reply other threads:[~2021-11-04 12:39 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-10-04 23:41 [Bug 214621] New: WARNING: CPU: 3 PID: 521 at drivers/gpu/drm/ttm/ttm_bo.c:409 ttm_bo_release+0xb64/0xe40 [ttm] bugzilla-daemon
2021-10-04 23:41 ` [Bug 214621] " bugzilla-daemon
2021-10-20 15:15 ` bugzilla-daemon
2021-10-27 7:12 ` bugzilla-daemon
2021-10-27 13:50 ` bugzilla-daemon
2021-11-01 8:46 ` bugzilla-daemon
2021-11-03 18:01 ` bugzilla-daemon
2021-11-04 7:19 ` bugzilla-daemon
2021-11-04 7:54 ` bugzilla-daemon
2021-11-04 8:05 ` bugzilla-daemon
2021-11-04 10:09 ` bugzilla-daemon
2021-11-04 10:16 ` bugzilla-daemon
2021-11-04 12:15 ` bugzilla-daemon
2021-11-04 12:39 ` bugzilla-daemon [this message]
2021-11-04 13:02 ` bugzilla-daemon
2021-11-04 14:13 ` bugzilla-daemon
2021-11-04 14:17 ` bugzilla-daemon
2021-11-04 14:18 ` bugzilla-daemon
2021-11-12 10:10 ` bugzilla-daemon
2021-11-12 11:08 ` bugzilla-daemon
2021-11-12 12:43 ` bugzilla-daemon
2022-02-17 13:12 ` bugzilla-daemon
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