From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tomi Valkeinen Date: Fri, 10 Jan 2014 11:24:13 +0000 Subject: Re: [PATCH] fbcon: Avoid corrupting active workqueue entries Message-Id: <52CFD85D.8020204@ti.com> MIME-Version: 1 Content-Type: multipart/mixed; boundary="H2GGRhx48DCGMT74M90Hepwkd3rLcbc52" List-Id: References: <1387290459-26440-1-git-send-email-chris@chris-wilson.co.uk> In-Reply-To: <1387290459-26440-1-git-send-email-chris@chris-wilson.co.uk> To: Chris Wilson , intel-gfx@lists.freedesktop.org Cc: Jean-Christophe Plagniol-Villard , linux-fbdev@vger.kernel.org, dri-devel@lists.freedesktop.org, stable@vger.kernel.org --H2GGRhx48DCGMT74M90Hepwkd3rLcbc52 Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: quoted-printable Hi, On 2013-12-17 16:27, Chris Wilson wrote: > We attempt to reschedule an active work which can itself corrupt the > workqueue lists, and we may then free the work item whilst the task is > still pending. Both of these may lead to a system deadlock and an > unresponsive machine without any outputs for a panic to even be shown. This gives the following warning: drivers/video/console/fbcon.c:407:20: warning: unused variable =91ops=92 [-Wunused-variable] I can fix that. Or maybe it's better if you send a v2 with that fixed, so that this gets properly to stable-kernel. However, I wouldn't mind an acked-by or reviewed-by from someone. Tomi --H2GGRhx48DCGMT74M90Hepwkd3rLcbc52 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.14 (GNU/Linux) Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iQIcBAEBAgAGBQJSz9hdAAoJEPo9qoy8lh71B9EQAI3P+wujZKsNj3ADCtXy3Td6 yi14rhWZr6FDc/T5tSqVl7TEH1z+tbFc1NxsKorVc04QitMqZOgm1VWLBUR5GbjU zKWY5eCrcFoKdwzvSHe8NfQVGSc7Rc4WwtM1kt33XZy8kcOWYBKvOzHaeRg9m9Sr Gehlpdp97Pmxadz86ECZRFTRPPNropnCq/Sv7dzhVxjrzLBn0o4eOYE5QItWtYfB NALjg/jXo7d1U3sxF26WIIS+0OP9+Tt55Tb0s1Jo2WiOTa5SHkdrxpWmikkkylwx W6aXkdv2CilM3i3+GpqB3yaLysiaapfvoP2jEkcptidmXOZAZqw0v5EeIZLXzNTG b/Qr/pyBHcIYkT5tImXJ1WChadummtRE+g/WDGXIWD2PHOC9nVMZjsOUw6UNG1yE XLuRiKeHOVtLZPmE/l51R1ds9YZe5ZFivMz4iI7suYynIr75K+ECq/PBU5EEjGiE 26G2gFJWeY+KCO7mGn7Vr7iCGYDLP48NGlsdeeCjVScFeGMdCkDkIA1d7e6YXa2Q YhZwyUzHB26GowNLoA88nHKuAx2MINCk7B6m/dLJfRdP5UW29a3yCX+Ve58OML2N 7UqvDIcgAWR/rsjt/k0+j0qZLRmy0w8fn/gX+mpNvxW7P9D9YcpnIsEfMqSkxdrX 579zo55pFlyPK+T3hnpK =fz3g -----END PGP SIGNATURE----- --H2GGRhx48DCGMT74M90Hepwkd3rLcbc52--