From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 7C7EC27280A; Mon, 13 Apr 2026 16:17:06 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1776097026; cv=none; b=IkJCFBQz4NqzjLD2Z7Y/MlJITJQNGbDayMDtgihCJYKL8UtSPpf9HsI+pdWFJ/apRP4Bvbavl80i7uJs2jurgAQYcyyEMtuiRVnnzIRcTQ2HnPLQGi0lnMaSlRuXfa4LjIIvYnYF51ta3vd14B+Ckaw9xJV3uLJ0/K/g96K8inM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1776097026; c=relaxed/simple; bh=YLSM1IDeCktIfNYrFmSJEmgc40N32VKog5uVHkVphCc=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=Qjd15lP9Hkw2xJiEDA4gsKTN75Z3RA5z80IJFNtIfhQ7HcmoYMiuSWU/pZbQZvbOpYvpwMUyOXGzcyTeY5givD9FCH2D/Au79oCt8ExdMmZ5RhMl0bnjXyxeWimu2QI8mfMR0/HR3+1/sysMW5A/5ctJG0TR6mScg+X0dUDOmnc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=AS69IQOq; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="AS69IQOq" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 1219FC2BCAF; Mon, 13 Apr 2026 16:17:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1776097026; bh=YLSM1IDeCktIfNYrFmSJEmgc40N32VKog5uVHkVphCc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=AS69IQOqICjPgKqb4Cf4KZ4nwb5htXTA3yUlzeDtVe9dgzG8KqOyHSSESw6+Qf+HS YmVCgj6Ora64zJwXp3m+GM58mmf4g2/DjnheoVL6ijIqXvvYntAu1Uc5vE6ftI8aTs E4HmkC9ycQVvudooPy+i6DeYni+tPKj8y5nXWv9E= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, "Lin.Cao" , Philipp Stanner , =?UTF-8?q?Christian=20K=C3=B6nig?= , Leon Chen Subject: [PATCH 6.1 34/55] drm/scheduler: signal scheduled fence when kill job Date: Mon, 13 Apr 2026 18:01:08 +0200 Message-ID: <20260413155726.110922418@linuxfoundation.org> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260413155724.820472494@linuxfoundation.org> References: <20260413155724.820472494@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 6.1-stable review patch. If anyone has any objections, please let me know. ------------------ From: Lin.Cao commit 471db2c2d4f80ee94225a1ef246e4f5011733e50 upstream. When an entity from application B is killed, drm_sched_entity_kill() removes all jobs belonging to that entity through drm_sched_entity_kill_jobs_work(). If application A's job depends on a scheduled fence from application B's job, and that fence is not properly signaled during the killing process, application A's dependency cannot be cleared. This leads to application A hanging indefinitely while waiting for a dependency that will never be resolved. Fix this issue by ensuring that scheduled fences are properly signaled when an entity is killed, allowing dependent applications to continue execution. Signed-off-by: Lin.Cao Reviewed-by: Philipp Stanner Signed-off-by: Christian König Link: https://lore.kernel.org/r/20250515020713.1110476-1-lincao12@amd.com [ Modified drm_sched_fence_scheduled(job->s_fence, NULL) to drm_sched_fence_scheduled(job->s_fence) for kernel 6.1.y ] Signed-off-by: Leon Chen Signed-off-by: Greg Kroah-Hartman --- drivers/gpu/drm/scheduler/sched_entity.c | 1 + 1 file changed, 1 insertion(+) --- a/drivers/gpu/drm/scheduler/sched_entity.c +++ b/drivers/gpu/drm/scheduler/sched_entity.c @@ -196,6 +196,7 @@ static void drm_sched_entity_kill_jobs_w { struct drm_sched_job *job = container_of(wrk, typeof(*job), work); + drm_sched_fence_scheduled(job->s_fence); drm_sched_fence_finished(job->s_fence); WARN_ON(job->s_fence->parent); job->sched->ops->free_job(job);