xfs_file_ioctl / xfs_freeze: BUG: warning at kernel/mutex-debug.c:80/debug_mutex_unlock()

From: Sami Farin
Date: Wed Jan 03 2007 - 20:28:31 EST


just a simple test I did...
xfs_freeze -f /mnt/newtest
cp /etc/fstab /mnt/newtest
xfs_freeze -u /mnt/newtest

2007-01-04 01:44:30.341979500 <4>BUG: warning at kernel/mutex-debug.c:80/debug_mutex_unlock()
2007-01-04 01:44:30.385771500 <4> [<c0103cfb>] dump_trace+0x215/0x21a
2007-01-04 01:44:30.385774500 <4> [<c0103da3>] show_trace_log_lvl+0x1a/0x30
2007-01-04 01:44:30.385775500 <4> [<c0103dcb>] show_trace+0x12/0x14
2007-01-04 01:44:30.385777500 <4> [<c0103ec8>] dump_stack+0x19/0x1b
2007-01-04 01:44:30.385778500 <4> [<c013a3af>] debug_mutex_unlock+0x69/0x120
2007-01-04 01:44:30.385779500 <4> [<c04b4aac>] __mutex_unlock_slowpath+0x44/0xf0
2007-01-04 01:44:30.385780500 <4> [<c04b4887>] mutex_unlock+0x8/0xa
2007-01-04 01:44:30.385782500 <4> [<c018d0ba>] thaw_bdev+0x57/0x6e
2007-01-04 01:44:30.385791500 <4> [<c026a6cf>] xfs_ioctl+0x7ce/0x7d3
2007-01-04 01:44:30.385793500 <4> [<c0269158>] xfs_file_ioctl+0x33/0x54
2007-01-04 01:44:30.385794500 <4> [<c01793f2>] do_ioctl+0x76/0x85
2007-01-04 01:44:30.385795500 <4> [<c0179570>] vfs_ioctl+0x59/0x1aa
2007-01-04 01:44:30.385796500 <4> [<c0179728>] sys_ioctl+0x67/0x77
2007-01-04 01:44:30.385797500 <4> [<c0102e73>] syscall_call+0x7/0xb
2007-01-04 01:44:30.385799500 <4> [<001be410>] 0x1be410
2007-01-04 01:44:30.385800500 <4> =======================

fstab was there just fine after -u.

Linux 2.6.19.1 SMP on Pentium D.

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