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    SubjectRe: [BUG?] possible recursive locking detected (blkdev_open)
    On Wed, 9 Aug 2006 07:57:31 +0200
    Rolf Eike Beer <eike-kernel@sf-tec.de> wrote:

    > =============================================
    > [ INFO: possible recursive locking detected ]
    > ---------------------------------------------
    > parted/7929 is trying to acquire lock:
    > (&bdev->bd_mutex){--..}, at: [<c105eb8d>] __blkdev_put+0x1e/0x13c
    >
    > but task is already holding lock:
    > (&bdev->bd_mutex){--..}, at: [<c105eec6>] do_open+0x72/0x3a8
    >
    > other info that might help us debug this:
    > 1 lock held by parted/7929:
    > #0: (&bdev->bd_mutex){--..}, at: [<c105eec6>] do_open+0x72/0x3a8
    > stack backtrace:
    > [<c1003aad>] show_trace_log_lvl+0x58/0x15b
    > [<c100495f>] show_trace+0xd/0x10
    > [<c1004979>] dump_stack+0x17/0x1a
    > [<c102dee5>] __lock_acquire+0x753/0x99c
    > [<c102e3b0>] lock_acquire+0x4a/0x6a
    > [<c1204501>] mutex_lock_nested+0xc8/0x20c
    > [<c105eb8d>] __blkdev_put+0x1e/0x13c
    > [<c105ecc4>] blkdev_put+0xa/0xc
    > [<c105f18a>] do_open+0x336/0x3a8
    > [<c105f21b>] blkdev_open+0x1f/0x4c
    > [<c1057b40>] __dentry_open+0xc7/0x1aa
    > [<c1057c91>] nameidata_to_filp+0x1c/0x2e
    > [<c1057cd1>] do_filp_open+0x2e/0x35
    > [<c1057dd7>] do_sys_open+0x38/0x68
    > [<c1057e33>] sys_open+0x16/0x18
    > [<c1002845>] sysenter_past_esp+0x56/0x8d
    > DWARF2 unwinder stuck at sysenter_past_esp+0x56/0x8d
    > Leftover inexact backtrace:
    > [<c100495f>] show_trace+0xd/0x10
    > [<c1004979>] dump_stack+0x17/0x1a
    > [<c102dee5>] __lock_acquire+0x753/0x99c
    > [<c102e3b0>] lock_acquire+0x4a/0x6a
    > [<c1204501>] mutex_lock_nested+0xc8/0x20c
    > [<c105eb8d>] __blkdev_put+0x1e/0x13c
    > [<c105ecc4>] blkdev_put+0xa/0xc
    > [<c105f18a>] do_open+0x336/0x3a8
    > [<c105f21b>] blkdev_open+0x1f/0x4c
    > [<c1057b40>] __dentry_open+0xc7/0x1aa
    > [<c1057c91>] nameidata_to_filp+0x1c/0x2e
    > [<c1057cd1>] do_filp_open+0x2e/0x35
    > [<c1057dd7>] do_sys_open+0x38/0x68
    > [<c1057e33>] sys_open+0x16/0x18
    > [<c1002845>] sysenter_past_esp+0x56/0x8d
    >

    kernel version?
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