$ cat /Library/Logs/PanicReporter/2008-04-04-021137.panic
Fri Apr  4 02:11:36 2008
panic(cpu 0 caller 0x0031E21F): "hfs_lock: locking against myself!"@/SourceCache/xnu/xnu-1228.4.31/bsd/hfs/hfs_cnode.c:986
Backtrace, Format - Frame : Return Address (4 potential args on stack)
0x1b1736d8 : 0x12b0f7 (0x4581f4 0x1b17370c 0x133230 0x0)
0x1b173728 : 0x31e21f (0x484e90 0x0 0x1b173758 0x1f1d72)
0x1b173758 : 0x31ebc7 (0x6569380 0x3 0x0 0x2c1b804)
0x1b173848 : 0x1f3e30 (0x1b173860 0x0 0x1b173888 0x1f5d49)
0x1b173888 : 0x1db8f0 (0x2ece640 0x3267e44 0x401190 0x0)
0x1b1738a8 : 0x1db95d (0x2ece640 0x0 0x246 0x3444560)
0x1b1738c8 : 0x335732 (0x2ece640 0x68000 0x2a9b990 0x3444560)
0x1b173bc8 : 0x335a8e (0x3267e44 0x577fff 0x166616c 0x0)
0x1b173c58 : 0x32cc6c (0x2c1b804 0x78000000 0x5 0x3267e44)
0x1b173cd8 : 0x1f6039 (0x1b173d08 0x0 0x1b173cf8 0x0)
0x1b173d38 : 0x1e8e0c (0x2dbac70 0x80006802 0x1b173ee0 0x0)
0x1b173f78 : 0x3dcf13 (0x3444560 0x3267d40 0x3267d84 0xb0080d78)
0x1b173fc8 : 0x19f1c3 (0x31ff0a0 0x0 0x1a20b5 0x31ff0a0)
No mapping exists for frame pointer
Backtrace terminated-invalid frame pointer 0xb0080d88

BSD process name corresponding to current thread: DiskManagementTo

Mac OS version:
9C7010

Kernel version:
Darwin Kernel Version 9.2.2: Tue Mar  4 21:17:34 PST 2008; root:xnu-1228.4.31~1/RELEASE_I386
System model name: Macmini2,1 (Mac-F4208EAA)