Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932436AbXK2OhN (ORCPT ); Thu, 29 Nov 2007 09:37:13 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932206AbXK2Ogq (ORCPT ); Thu, 29 Nov 2007 09:36:46 -0500 Received: from e28smtp06.in.ibm.com ([59.145.155.6]:37510 "EHLO e28esmtp06.in.ibm.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1755108AbXK2Ogp (ORCPT ); Thu, 29 Nov 2007 09:36:45 -0500 Message-ID: <474ECE6A.3010500@linux.vnet.ibm.com> Date: Thu, 29 Nov 2007 20:06:26 +0530 From: Kamalesh Babulal User-Agent: Thunderbird 1.5.0.14pre (X11/20071023) MIME-Version: 1.0 To: Jan Kara CC: Andrew Morton , linux-kernel@vger.kernel.org, samba-technical@lists.samba.org, nfs@lists.sourceforge.net, linuxppc-dev@ozlabs.org, Andy Whitcroft , Balbir Singh Subject: Re: [BUG] 2.6.24-rc3-mm2 kernel bug on nfs & cifs mounted partitions References: <20071128034140.648383f0.akpm@linux-foundation.org> <474E7F9E.9000601@linux.vnet.ibm.com> <20071129010906.772e0c15.akpm@linux-foundation.org> <474EA914.1060502@linux.vnet.ibm.com> <20071129121001.GD16558@duck.suse.cz> In-Reply-To: <20071129121001.GD16558@duck.suse.cz> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 3663 Lines: 92 Jan Kara wrote: > On Thu 29-11-07 17:27:08, Kamalesh Babulal wrote: >> Andrew Morton wrote: >>> On Thu, 29 Nov 2007 14:30:14 +0530 Kamalesh Babulal wrote: >>> >>>> Hi Andrew, >>>> >>>> While running file system stress on nfs and cifs mounted partitions, the machine >>>> drops to xmon >>>> >>>> 1:mon> e >>>> cpu 0x1: Vector: 300 (Data Access) at [c000000080a9f880] >>>> pc: c0000000001392c8: .inotify_inode_queue_event+0x50/0x158 >>>> lr: c0000000001074d0: .vfs_link+0x204/0x298 >>>> sp: c000000080a9fb00 >>>> msr: 8000000000009032 >>>> dar: 280 >>>> dsisr: 40010000 >>>> current = 0xc0000000c8e6f670 >>>> paca = 0xc000000000512c00 >>>> pid = 2848, comm = fsstress >>>> 1:mon> t >>>> [c000000080a9fbd0] c0000000001074d0 .vfs_link+0x204/0x298 >>>> [c000000080a9fc70] c00000000010b6e0 .sys_linkat+0x134/0x1b4 >>>> [c000000080a9fe30] c00000000000872c syscall_exit+0x0/0x40 >>>> --- Exception: c00 (System Call) at 000000000ff1bdfc >>>> SP (ffeaed10) is in userspace >>>> 1:mon> r >>>> R00 = c0000000001074d0 R16 = 0000000000000000 >>>> R01 = c000000080a9fb00 R17 = 0000000000000000 >>>> R02 = c00000000060c380 R18 = 0000000000000000 >>>> R03 = 0000000000000000 R19 = 0000000000000000 >>>> R04 = 0000000000000004 R20 = 0000000000000000 >>>> R05 = 0000000000000000 R21 = 0000000000000000 >>>> R06 = 0000000000000000 R22 = 0000000000000000 >>>> R07 = 0000000000000000 R23 = 0000000000000004 >>>> R08 = 0000000000000000 R24 = 0000000000000280 >>>> R09 = 0000000000000000 R25 = fffffffffffff000 >>>> R10 = 0000000000000001 R26 = c000000082827790 >>>> R11 = c0000000003963e8 R27 = c0000000828275a0 >>>> R12 = d000000000deec78 R28 = 0000000000000000 >>>> R13 = c000000000512c00 R29 = c00000007b18fcf0 >>>> R14 = 0000000000000000 R30 = c0000000005bc088 >>>> R15 = 0000000000000000 R31 = 0000000000000000 >>>> pc = c0000000001392c8 .inotify_inode_queue_event+0x50/0x158 >>>> lr = c0000000001074d0 .vfs_link+0x204/0x298 >>>> msr = 8000000000009032 cr = 24000882 >>>> ctr = c0000000003963e8 xer = 0000000000000000 trap = 300 >>>> dar = 0000000000000280 dsisr = 40010000 >>>> >>>> >>>> The gdb output shows >>>> >>>> 0xc0000000001076d4 is in vfs_symlink (include/linux/fsnotify.h:108). >>>> 103 * fsnotify_create - 'name' was linked in >>>> 104 */ >>>> 105 static inline void fsnotify_create(struct inode *inode, struct dentry *dentry) >>>> 106 { >>>> 107 inode_dir_notify(inode, DN_CREATE); >>>> 108 inotify_inode_queue_event(inode, IN_CREATE, 0, dentry->d_name.name, >>>> 109 dentry->d_inode); >>>> 110 audit_inode_child(dentry->d_name.name, dentry, inode); >>>> 111 } >>>> 112 >>>> >>> If it is reproducible can you please try reverting >>> inotify-send-in_attrib-events-when-link-count-changes.patch? >> Hi Andrew, >> >> reverting the patch inotify-send-in_attrib-events-when-link-count-changes.patch, the >> bug is not reproduced. > OK, thanks for testing. I was trying to reproduce the problem locally but > without success so far - I guess it's either NFS or CIFS which makes the > problem appear. I'll investigate more. > > Honza Hi Jan, I was running file system stress parallely on NFS and CIFS mounted partitions. -- Thanks & Regards, Kamalesh Babulal, Linux Technology Center, IBM, ISTL. - 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/