FC5 kernel 2.6.18-1.2798
=======================================================
[ INFO: possible circular locking dependency detected ]
2.6.18-1.2798self #1
-------------------------------------------------------
kswapd0/201 is trying to acquire lock:
(&inode->i_mutex){--..}, at: [<c03306d1>] mutex_lock+0x1c/0x1f
but task is already holding lock:
(iprune_mutex){--..}, at: [<c03306d1>] mutex_lock+0x1c/0x1f
which lock already depends on the new lock.
the existing dependency chain (in reverse order) is:
-> #3 (iprune_mutex){--..}:
[<c012f533>] __lock_acquire+0x82c/0x904
[<c012fb73>] lock_acquire+0x4b/0x6c
[<c0330542>] __mutex_lock_slowpath+0xb3/0x226
[<c03306d1>] mutex_lock+0x1c/0x1f
[<c01794ce>] invalidate_inodes+0x20/0xcd
[<c016826b>] generic_shutdown_super+0x45/0xf7
[<c016833d>] kill_block_super+0x20/0x32
[<c01683fd>] deactivate_super+0x5d/0x6f
[<c017b60e>] mntput_no_expire+0x42/0x71
[<c016de9e>] path_release_on_umount+0x15/0x18
[<c017c74f>] sys_umount+0x1e7/0x21b
[<c017c790>] sys_oldumount+0xd/0xf
[<c0102fff>] syscall_call+0x7/0xb
[<ffffffff>] 0xffffffff
-> #2 (&type->s_lock_key#9){--..}:
[<c012f533>] __lock_acquire+0x82c/0x904
[<c012fb73>] lock_acquire+0x4b/0x6c
[<c0330542>] __mutex_lock_slowpath+0xb3/0x226
[<c03306d1>] mutex_lock+0x1c/0x1f
[<c01a505a>] ext3_orphan_add+0x32/0x1d0
[<c01a2aa8>] ext3_setattr+0x152/0x1e1
[<c017a0b7>] notify_change+0x137/0x2cc
[<c0161058>] do_truncate+0x53/0x6c
[<c016f646>] may_open+0x1b6/0x204
[<c0171770>] open_namei+0x286/0x638
[<c0160de5>] do_filp_open+0x1f/0x35
[<c0160e3b>] do_sys_open+0x40/0xb5
[<c0160edc>] sys_open+0x16/0x18
[<c0102fff>] syscall_call+0x7/0xb
[<ffffffff>] 0xffffffff
-> #1 (&inode->i_alloc_sem){--..}:
[<c012f533>] __lock_acquire+0x82c/0x904
[<c012fb73>] lock_acquire+0x4b/0x6c
[<c012c9c1>] down_write+0x28/0x42
[<c017a06f>] notify_change+0xef/0x2cc
[<c0161058>] do_truncate+0x53/0x6c
[<c016f646>] may_open+0x1b6/0x204
[<c0171770>] open_namei+0x286/0x638
[<c0160de5>] do_filp_open+0x1f/0x35
[<c0160e3b>] do_sys_open+0x40/0xb5
[<c0160edc>] sys_open+0x16/0x18
[<c0102fff>] syscall_call+0x7/0xb
[<ffffffff>] 0xffffffff
-> #0 (&inode->i_mutex){--..}:
[<c012f467>] __lock_acquire+0x760/0x904
[<c012fb73>] lock_acquire+0x4b/0x6c
[<c0330542>] __mutex_lock_slowpath+0xb3/0x226
[<c03306d1>] mutex_lock+0x1c/0x1f
[<f922c244>] ntfs_put_inode+0x3d/0x75 [ntfs]
[<c0178a89>] iput+0x33/0x6a
[<f922c081>] ntfs_clear_big_inode+0x99/0xb2 [ntfs]
[<c0178f84>] clear_inode+0xce/0x11f
[<c0179277>] dispose_list+0x4c/0xd1
[<c0179486>] shrink_icache_memory+0x18a/0x1b2
[<c014dd8c>] shrink_slab+0xd0/0x14a
[<c014e148>] kswapd+0x2a2/0x379
[<c012a04b>] kthread+0xb0/0xdd
[<c0103d77>] kernel_thread_helper+0x7/0x10
[<ffffffff>] 0xffffffff
other info that might help us debug this:
2 locks held by kswapd0/201:
#0: (shrinker_rwsem){----}, at: [<c014dce1>] shrink_slab+0x25/0x14a
#1: (iprune_mutex){--..}, at: [<c03306d1>] mutex_lock+0x1c/0x1f
stack backtrace:
[<c0103e7b>] show_trace_log_lvl+0x12/0x25
[<c0103f5e>] show_trace+0xd/0x10
[<c01047aa>] dump_stack+0x19/0x1b
[<c012ecfc>] print_circular_bug_tail+0x59/0x64
[<c012f467>] __lock_acquire+0x760/0x904
[<c012fb73>] lock_acquire+0x4b/0x6c
[<c0330542>] __mutex_lock_slowpath+0xb3/0x226
[<c03306d1>] mutex_lock+0x1c/0x1f
[<f922c244>] ntfs_put_inode+0x3d/0x75 [ntfs]
[<c0178a89>] iput+0x33/0x6a
[<f922c081>] ntfs_clear_big_inode+0x99/0xb2 [ntfs]
[<c0178f84>] clear_inode+0xce/0x11f
[<c0179277>] dispose_list+0x4c/0xd1
[<c0179486>] shrink_icache_memory+0x18a/0x1b2
[<c014dd8c>] shrink_slab+0xd0/0x14a
[<c014e148>] kswapd+0x2a2/0x379
[<c012a04b>] kthread+0xb0/0xdd
[<c0103d77>] kernel_thread_helper+0x7/0x10
=======================
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