Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753403Ab1C2Gfe (ORCPT ); Tue, 29 Mar 2011 02:35:34 -0400 Received: from mx2.fusionio.com ([64.244.102.31]:54415 "EHLO mx2.fusionio.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751787Ab1C2Gfc (ORCPT ); Tue, 29 Mar 2011 02:35:32 -0400 X-ASG-Debug-ID: 1301380531-01de284cf8d0610001-xx1T2L X-Barracuda-Envelope-From: JAxboe@fusionio.com Message-ID: <4D917DB1.9030300@fusionio.com> Date: Tue, 29 Mar 2011 08:35:29 +0200 From: Jens Axboe MIME-Version: 1.0 To: Rob Landley CC: linux-kernel , "linux-ide@vger.kernel.org" Subject: Re: Commit 7eaceaccab5f40 causing boot hang. References: <4D9179EE.9040707@parallels.com> X-ASG-Orig-Subj: Re: Commit 7eaceaccab5f40 causing boot hang. In-Reply-To: <4D9179EE.9040707@parallels.com> Content-Type: text/plain; charset="ISO-8859-1" Content-Transfer-Encoding: 7bit X-Barracuda-Connect: mail1.int.fusionio.com[10.101.1.21] X-Barracuda-Start-Time: 1301380531 X-Barracuda-URL: http://10.101.1.181:8000/cgi-mod/mark.cgi X-Barracuda-Spam-Score: 0.50 X-Barracuda-Spam-Status: No, SCORE=0.50 using global scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=9.0 tests=BSF_RULE7568M X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.59286 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.50 BSF_RULE7568M Custom Rule 7568M Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1409 Lines: 35 On 2011-03-29 08:19, Rob Landley wrote: > Using the attached config (run through oldconfig and holding down > enter), 2.6.38 boots but current -git hangs. I've bisected it to this > commit: > > 7eaceaccab5f40bbfda044629a6298616aeaed50 is the first bad commit > commit 7eaceaccab5f40bbfda044629a6298616aeaed50 > Author: Jens Axboe > Date: Thu Mar 10 08:52:07 2011 +0100 > > block: remove per-queue plugging > > Code has been converted over to the new explicit on-stack plugging, > and delay users have been converted to use the new API for that. > So lets kill off the old plugging along with aops->sync_page(). > > Signed-off-by: Jens Axboe > > I suspect it broke CONFIG_IDE_GD_ATA. (The symptoms change a bit in > later versions, when that was first introduced it hung right after > discovering hda, now it makes it to freeing kernel memory and then hangs > trying to launch init. But "the disk hangs a lot" still seems to > describe the problem.) That is the case even with 9ced0b95b3993660e7990cf6bf68c1a80f31544e, which was otherwise supposed to fix this queue stall? -- Jens Axboe -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/