| LOR |
lock order reversal:
1st 0xd8d3fc50 bufwait (bufwait) @ sys/kern/vfs_bio.c:2443
2nd 0xc4f9f01c snaplk (snaplk) @ sys/ufs/ffs/ffs_snapshot.c:794
KDB: stack backtrace:
db_trace_self_wrapper(c0bb77be,c4bbb40c,c0851645,4,c0bb2cb1,...) at db_trace_self_wrapper+0x26
kdb_backtrace(4,c0bb2cb1,c4d21810,c4d25638,c4bbb468,...) at kdb_backtrace+0x29
_witness_debugger(c0bba46e,c4f9f01c,c0bd8a75,c4d25638,c0bd8a13,...) at _witness_debugger+0x25
witness_checkorder(c4f9f01c,9,c0bd8a13,31a,c55bfaec,...) at witness_checkorder+0x839
__lockmgr_args(c4f9f01c,80400,c55bfaec,0,0,...) at __lockmgr_args+0x797
ffs_lock(c4bbb578,0,0,80400,c55bfa78,...) at ffs_lock+0x8a
VOP_LOCK1_APV(c0cbf480,c4bbb578,c211a614,c0cd3400,c55bfa78,...) at VOP_LOCK1_APV+0xa5
_vn_lock(c55bfa78,80400,c0bd8a13,31a,0,...) at _vn_lock+0x5e
ffs_snapshot(c51c0a00,c53029c0,c0bda378,15e,3,...) at ffs_snapshot+0x28c6
ffs_mount(c51c0a00,c5586000,c0bc0c2b,3dc,c4e8ac80,...) at ffs_mount+0x146f
vfs_donmount(c5586000,211000,c52fdb00,c52fdb00,201000,...) at vfs_donmount+0x1312
nmount(c5586000,c4bbbcf8,c,c4bbbd38,c0c9b790,...) at nmount+0xbe
syscall(c4bbbd38) at syscall+0x2a3
Xint0x80_syscall() at Xint0x80_syscall+0x20
--- syscall (378, FreeBSD ELF32, nmount), eip = 0x280e6c9b, esp = 0xbfbfeb1c, ebp = 0xbfbfee78 ---
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