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    SubjectBUG: atomic counter underflow [Was: 2.6.16-rc6-mm1]
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    Date
    Andrew Morton wrote:
    >ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.16-rc6/2.6.16-rc6-mm1/
    [snip]
    >+remove-redundant-check-from-autofs4_put_super.patch
    >+autofs4-follow_link-missing-funtionality.patch
    >
    > Update autofs4 patches in -mm.
    Hello,

    I caught this during ftp browsing autofs-bind-mounted directories. I don't know
    circumstancies and if the patches above are source of problem. I also don't know
    if -rc6-mm1 is the first one.

    BUG: atomic counter underflow at:
    [<c0104736>] show_trace+0x13/0x15
    [<c0104873>] dump_stack+0x1e/0x20
    [<c01d6c97>] autofs4_wait+0x751/0x93a
    [<c01d543b>] try_to_fill_dentry+0xca/0x11c
    [<c01d59b3>] autofs4_revalidate+0xe1/0x148
    [<c0171338>] do_lookup+0x40/0x157
    [<c0172ec4>] __link_path_walk+0x804/0xe8c
    [<c017359c>] link_path_walk+0x50/0xe8
    [<c01738b7>] do_path_lookup+0x10f/0x26d
    [<c017429c>] __user_walk_fd+0x33/0x50
    [<c016d226>] vfs_stat_fd+0x1e/0x50
    [<c016d30d>] vfs_stat+0x20/0x22
    [<c016d328>] sys_stat64+0x19/0x2d
    [<c0103127>] syscall_call+0x7/0xb

    regards,
    --
    Jiri Slaby www.fi.muni.cz/~xslaby
    ~\-/~ jirislaby@gmail.com ~\-/~
    B67499670407CE62ACC8 22A032CC55C339D47A7E
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