| LOR |
lock order reversal
1st 0xc163339c an0 (network driver) @ sys/dev/an/if_an.c:1931
2nd 0xc134b164 user map (user map) @ sys/vm/vm_map.c:2902
KDB: stack backtrace:
kdb_backtrace(0,ffffffff,c0696d88,c0697a08,c066630c) at kdb_backtrace+0x29
witness_checkorder(c134b164,9,c06469a0,b56) at witness_checkorder+0x544
_sx_xlock(c134b164,c0646997,b56) at _sx_xlock+0x50
_vm_map_lock_read(c134b128,c0646997,b56,1b69978,c1402e4c) at
_vm_map_lock_read+0x33
vm_map_lookup(d0b69a10,bfbfd000,1,d0b69a14,d0b69a04) at vm_map_lookup+0x28
vm_fault(c134b128,bfbfd000,1,0,c1371840) at vm_fault+0x66
trap_pfault(d0b69ad8,0,bfbfd000) at trap_pfault+0xd2
trap(c04f0018,c06b0010,c1630010,c1633df4,bfbfd000) at trap+0x311
calltrap() at calltrap+0x5
--- trap 0xc, eip = 0xc060661e, esp = 0xd0b69b18, ebp = 0xd0b69ba4 ---
generic_copyin(c1632000,c020693a,d0b69c60,c04d4b78,c06bb8e0) at
generic_copyin+0x32
ifhwioctl(c020693a,c1632000,d0b69c60,c1371840,c0698048) at ifhwioctl+0x854
ifioctl(c16219e0,c020693a,d0b69c60,c1371840,0) at ifioctl+0xbd
soo_ioctl(c158f440,c020693a,d0b69c60,c133c480,c1371840) at soo_ioctl+0x2b1
ioctl(c1371840,d0b69d14,3,2,292) at ioctl+0x3e0
syscall(2f,2f,2f,3,bfbfef64) at syscall+0x217
Xint0x80_syscall() at Xint0x80_syscall+0x1f
--- syscall (54, FreeBSD ELF32, ioctl), eip = 0x280d0083, esp =
0xbfbfad7c, ebp = 0xbfbfadb8 ---
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