From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jiri Slaby Subject: Re: evdev soft lockup 2.6.24-rc5-mm1 Date: Mon, 21 Jan 2008 20:11:35 +0100 Message-ID: <4794EE67.6090508@gmail.com> References: <47848CF5.8000107@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from nf-out-0910.google.com ([64.233.182.190]:2736 "EHLO nf-out-0910.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751957AbYAUTLl (ORCPT ); Mon, 21 Jan 2008 14:11:41 -0500 Received: by nf-out-0910.google.com with SMTP id g13so320280nfb.21 for ; Mon, 21 Jan 2008 11:11:38 -0800 (PST) In-Reply-To: Sender: linux-input-owner@vger.kernel.org List-Id: linux-input@vger.kernel.org To: Jiri Kosina Cc: Dmitry Torokhov , Linux Kernel Mailing List , Andrew Morton , linux-input@vger.kernel.org On 01/09/2008 11:11 AM, Jiri Kosina wrote: > On Wed, 9 Jan 2008, Jiri Slaby wrote: > >> BUG: soft lockup - CPU#1 stuck for 11s! [X:2887] > [ ... ] >> Call Trace: >> [] __mutex_lock_slowpath+0x38/0xd0 >> [] mutex_lock+0x1e/0x30 >> [] input_release_device+0x27/0x50 >> [] evdev_ungrab+0x3a/0x50 >> [] evdev_release+0xcb/0xd0 >> [] __fput+0xc0/0x230 >> [] fput+0x16/0x20 >> [] filp_close+0x56/0x90 >> [] sys_close+0x9a/0xf0 >> [] system_call+0x7e/0x83 >> I was not able to use sysrq keys, the keyboard is obviously defunct. If >> this is not known, I'll try to turn lockdep on and maybe connect through >> ssh next time it happens. > > Is this reproducible on your side? > > Running with lockdep would be really helpful, so that we possibly know who > is holding the other instance of dev->mutex. Seems not to be an issue any longer, but I'll keep an eye on it.