From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=100.103.45.18 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1793214193; b=NcN6NuMYq4llot80B62lHxws11+TRGi6jhCW5jg7bq5TFrupdPhRw6CgRxbL6c63eWId 2PToKrrImb8QIMNddlbBjytj0tlDEZZL2+d3eJx/vRQhnulWIGs6qFvhv/tAffSOuZEE8 1NG+9c69o8yxvIXr77LTGdjNZxBHOj0BDLRiiL4kgcGGYl9GNVDbrEf0yIb77fArMnXvJ Y2TF4kkAxN5K3jvkIpfBJLrh63rPtHz+ewcMJx/Iwz2kQRtJHQUnv8hRbkVNIwMq0HvGC rxxocWUWPjuL2RbebRxVptyhpLAbBlHi+shje0BQpTvPv9MNxPZnwIjyNhFaPxm/yJw== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1793214193; h=Received:DKIM-Signature:From:To:Cc:Subject:Date:Message-ID:X-Mailer: In-Reply-To:References:User-Agent:X-stable:X-Patchwork-Hint: MIME-Version:Content-Transfer-Encoding; bh=gMuiS0UiYKpy5ZCPD9VL0Gs3XyLpXwqA96/Fgqzaxt4=; b=yoNEVfhc0dj+ZvMi6+tXwQY0BwCXepxQgdhXhO8W3oGGLtgxg+tey9ISobUbIJoq4JB9 z7ojG5BVZgNsz6+FgBdk6DKiInzLjV7OdSqyg7H1r6jkFSzqnXbDBlgv9b1yeSUGyGbLA L2rN3rYw4Hf8WllEXLejD/997DbjP/FlCYL9sPxFyjyl/YyJKmMqkLSzmL8gK12IX2Dpc FBH2QDufa6PJuioLvei/OtYmgrcu2D9y2stWsUH0d2+fjdN0YvFhBXhScAZe51bDFU2fT j4LeBfKbrrzvOKMFmXLjf2MkYbUiVgh05kpdFK4IE8zJkumP+TRTucbkhgn08LMC5BA== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass header.d=linuxfoundation.org header.i=@linuxfoundation.org header.a=rsa-sha256 header.s=korg header.b=BU0VmyMM; arc=none smtp.remote-ip=100.103.45.18 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id E729360A6F6F; Wed, 28 Oct 2026 19:03:12 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key, unprotected) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.a=rsa-sha256 header.s=korg header.b=BU0VmyMM Received: by smtp.kernel.org (Postfix) with ESMTPSA id 399311F013CF; Wed, 28 Oct 2026 19:03:12 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1793214192; bh=gMuiS0UiYKpy5ZCPD9VL0Gs3XyLpXwqA96/Fgqzaxt4=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=BU0VmyMMHR/o3GTYgHUo8s0LvXQnHvC0HFZCqkjgiD9r7AadtI18T0w4gF1kdvsQR GWuwQkSWClYc5IS63MoBBeIydiptSnTw4sSR1529dvIAx7ZzQwtS3JtsWP+FVUn6Yv 4GxbRnhEU86rI1wA/jG93pCoQ555MLh4l6G6BjIM= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Philip Yang , Kent Russell , Felix Kuehling , Alex Deucher , Sasha Levin Subject: [PATCH 6.1 0773/1887] drm/amdkfd: debugfs hang_hws skip GPU with MES Date: Wed, 28 Oct 2026 17:47:49 +0100 Message-ID: <20261028170517.030065951@linuxfoundation.org> X-Mailer: git-send-email 2.56.0 In-Reply-To: <20261028170459.200466217@linuxfoundation.org> References: <20261028170459.200466217@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore X-Mailing-List: patches@lists.linux.dev List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.1-stable review patch. If anyone has any objections, please let me know. ------------------ From: Philip Yang [ Upstream commit fe9d0061c413f8fb8c529b18b592b04170850ded ] debugfs hang_hws is used by GPU reset test with HWS, for MES this crash the kernel with NULL pointer access because dqm->packet_mgr is not setup for MES path. Skip GPU with MES for now, MES hang_hws debugfs interface will be supported later. Signed-off-by: Philip Yang Reviewed-by: Kent Russell Reviewed-by: Felix Kuehling Signed-off-by: Alex Deucher Signed-off-by: Sasha Levin --- drivers/gpu/drm/amd/amdkfd/kfd_device.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_device.c b/drivers/gpu/drm/amd/amdkfd/kfd_device.c index e2c055abfea97..a4eadd6416f86 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_device.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_device.c @@ -1177,6 +1177,11 @@ int kfd_debugfs_hang_hws(struct kfd_dev *dev) return -EINVAL; } + if (dev->shared_resources.enable_mes) { + dev_err(dev->adev->dev, "Inducing MES hang is not supported\n"); + return -EINVAL; + } + return dqm_debugfs_hang_hws(dev->dqm); } -- 2.53.0