From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from e28esmtp07.in.ibm.com (e28smtp07.in.ibm.com [59.145.155.7]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client CN "e28smtp07.in.ibm.com", Issuer "Equifax" (verified OK)) by ozlabs.org (Postfix) with ESMTP id A9E76DDDEE for ; Thu, 29 Nov 2007 20:01:27 +1100 (EST) Received: from d28relay02.in.ibm.com (d28relay02.in.ibm.com [9.184.220.59]) by e28esmtp07.in.ibm.com (8.13.1/8.13.1) with ESMTP id lAT90GUg019536 for ; Thu, 29 Nov 2007 14:30:16 +0530 Received: from d28av01.in.ibm.com (d28av01.in.ibm.com [9.184.220.63]) by d28relay02.in.ibm.com (8.13.8/8.13.8/NCO v8.7) with ESMTP id lAT90FnE3887278 for ; Thu, 29 Nov 2007 14:30:15 +0530 Received: from d28av01.in.ibm.com (loopback [127.0.0.1]) by d28av01.in.ibm.com (8.13.1/8.13.3) with ESMTP id lAT90Fai016357 for ; Thu, 29 Nov 2007 09:00:15 GMT Message-ID: <474E7F9E.9000601@linux.vnet.ibm.com> Date: Thu, 29 Nov 2007 14:30:14 +0530 From: Kamalesh Babulal MIME-Version: 1.0 To: Andrew Morton Subject: [BUG] 2.6.24-rc3-mm2 kernel bug on nfs & cifs mounted partitions References: <20071128034140.648383f0.akpm@linux-foundation.org> In-Reply-To: <20071128034140.648383f0.akpm@linux-foundation.org> Content-Type: text/plain; charset=US-ASCII Cc: samba-technical@lists.samba.org, linux-kernel@vger.kernel.org, linuxppc-dev@ozlabs.org, nfs@lists.sourceforge.net, Balbir Singh List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , 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 -- Thanks & Regards, Kamalesh Babulal, Linux Technology Center, IBM, ISTL.