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    SubjectRe: [BUG] 2.6.24-rc3-mm2 kernel bug on nfs & cifs mounted partitions
    On Thu, 29 Nov 2007 14:30:14 +0530 Kamalesh Babulal <kamalesh@linux.vnet.ibm.com> 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?
    -
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