Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755647Ab0D0UbM (ORCPT ); Tue, 27 Apr 2010 16:31:12 -0400 Received: from e38.co.us.ibm.com ([32.97.110.159]:46583 "EHLO e38.co.us.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754275Ab0D0UbK (ORCPT ); Tue, 27 Apr 2010 16:31:10 -0400 Subject: Re: 2.6.33.3-rt16 Oops caused by umount From: john stultz To: Thomas Gleixner Cc: Xianghua Xiao , LKML In-Reply-To: <1272399798.2255.2.camel@localhost> References: <1272399798.2255.2.camel@localhost> Content-Type: text/plain; charset="ISO-8859-1" Date: Tue, 27 Apr 2010 13:30:46 -0700 Message-ID: <1272400246.2255.5.camel@localhost> Mime-Version: 1.0 X-Mailer: Evolution 2.28.1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2049 Lines: 50 On Tue, 2010-04-27 at 13:23 -0700, john stultz wrote: > On Tue, 2010-04-27 at 20:56 +0200, Thomas Gleixner wrote: > > On Tue, 27 Apr 2010, Xianghua Xiao wrote: > > > > cc'ed John > > > > > 2.6.33.2-rt13 worked fine, however on 2.6.33.3-rt16, when I do reboot, it oops: > > > > > > # reboot > > > # Oops: Kernel access of bad area, sig: 11 [#1] > > > PREEMPT 83xx Sys > > > Modules linked in: > > > NIP: c00efc68 LR: c00efc38 CTR: 00000000 > > > REGS: ce6e3dc0 TRAP: 0300 Not tainted (2.6.33.3-rt16) > > > MSR: 00009032 CR: 24000448 XER: 00000000 > > > DAR: 00000038, DSISR: 20000000 > > > TASK = cd89ccc0[1613] 'umount' THREAD: ce6e2000 > > > GPR00: 00000000 ce6e3e70 cd89ccc0 ce6e3ddc 22222222 00000000 ce6e3e24 ce6e3e04 > > > GPR08: 00008000 00000010 cdfa2130 cdfa26e0 44000442 100bbc1c 0fffd000 ffffffff > > > GPR16: 00000001 00000000 007fff00 00000000 00000000 00000001 ce6e3eb8 00000021 > > > GPR24: 00000060 00000000 00000000 ceb94c40 00000000 ceb94cc0 c065781c ce6e3e70 > > > NIP [c00efc68] fs_may_remount_ro+0x6c/0xd8 > > > LR [c00efc38] fs_may_remount_ro+0x3c/0xd8 > > > Call Trace: > > > [ce6e3e70] [c00efc38] fs_may_remount_ro+0x3c/0xd8 (unreliable) > > > [ce6e3e90] [c00f1198] do_remount_sb+0x11c/0x164 > > > [ce6e3eb0] [c0113a3c] do_mount+0x538/0x86c > > > [ce6e3f10] [c0113e30] sys_mount+0xc0/0x120 > > > [ce6e3f40] [c00178d8] ret_from_syscall+0x0/0x38 > > > --- Exception: c01 at 0xfe5f8c4 > > > LR = 0x10051b88 > > > Instruction dump: > > > 38000000 817d00c0 3bbd00c0 60088000 814b0000 2f8a0000 419e0008 7c00522c > > > 7f8be800 419e004c 812b000c 81290040 <80090028> 2f800000 419e0028 a009006e > > > ---[ end trace 17c711f9d369c3a3 ]--- > > Hey Xianghua, > What filesystem was this on? And what architecture? Also a .config would be helpful. thanks -john -- 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/