From: Kamalesh Babulal Subject: Re: [NFS] [BUG] 2.6.24-rc3-mm2 kernel bug on nfs & cifs mounted partitions Date: Thu, 29 Nov 2007 17:27:08 +0530 Message-ID: <474EA914.1060502@linux.vnet.ibm.com> References: <20071128034140.648383f0.akpm@linux-foundation.org> <474E7F9E.9000601@linux.vnet.ibm.com> <20071129010906.772e0c15.akpm@linux-foundation.org> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Cc: Jan Kara , Balbir Singh , samba-technical@lists.samba.org, linux-kernel@vger.kernel.org, linuxppc-dev-mnsaURCQ41sdnm+yROfE0A@public.gmane.org, nfs@lists.sourceforge.net, Andy Whitcroft To: Andrew Morton Return-path: Received: from sc8-sf-mx1-b.sourceforge.net ([10.3.1.91] helo=mail.sourceforge.net) by sc8-sf-list2-new.sourceforge.net with esmtp (Exim 4.43) id 1Ixi26-0000ig-1S for nfs@lists.sourceforge.net; Thu, 29 Nov 2007 03:58:18 -0800 Received: from e23smtp02.au.ibm.com ([202.81.18.163]) by mail.sourceforge.net with esmtps (TLSv1:AES256-SHA:256) (Exim 4.44) id 1Ixi2B-000193-Mw for nfs@lists.sourceforge.net; Thu, 29 Nov 2007 03:58:24 -0800 Received: from d23relay03.au.ibm.com (d23relay03.au.ibm.com [202.81.18.234]) by e23smtp02.au.ibm.com (8.13.1/8.13.1) with ESMTP id lATBvfrq013731 for ; Thu, 29 Nov 2007 22:57:41 +1100 Received: from d23av04.au.ibm.com (d23av04.au.ibm.com [9.190.235.139]) by d23relay03.au.ibm.com (8.13.8/8.13.8/NCO v8.7) with ESMTP id lATBvjbx1921208 for ; Thu, 29 Nov 2007 22:57:45 +1100 Received: from d23av04.au.ibm.com (loopback [127.0.0.1]) by d23av04.au.ibm.com (8.12.11.20060308/8.13.3) with ESMTP id lATBvS5j018225 for ; Thu, 29 Nov 2007 22:57:29 +1100 In-Reply-To: <20071129010906.772e0c15.akpm@linux-foundation.org> Sender: linux-nfs-owner@vger.kernel.org List-ID: 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. -- Thanks & Regards, Kamalesh Babulal, Linux Technology Center, IBM, ISTL. ------------------------------------------------------------------------- SF.Net email is sponsored by: The Future of Linux Business White Paper from Novell. From the desktop to the data center, Linux is going mainstream. Let it simplify your IT future. http://altfarm.mediaplex.com/ad/ck/8857-50307-18918-4 _______________________________________________ NFS maillist - NFS@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/nfs _______________________________________________ Please note that nfs@lists.sourceforge.net is being discontinued. Please subscribe to linux-nfs@vger.kernel.org instead. http://vger.kernel.org/vger-lists.html#linux-nfs