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FreeBSD lock order reversal (LOR) #151

ID 151
state unknown
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LOR
lock order reversal
 1st 0xc07a7060 ifnet (ifnet) @ sys/net/if.c:1159
 2nd 0xc1f36b68 iwi0 (network driver) @ sys/modules/iwi/../../dev/iwi/if_iwi.c:1643
		
KDB: stack backtrace:
kdb_backtrace(0,ffffffff,c07689b0,c0768640,c072c8c4) at kdb_backtrace+0x29
witness_checkorder(c1f36b68,9,c08e62d1,66b) at witness_checkorder+0x52c
_mtx_lock_flags(c1f36b68,0,c08e62d1,66b,c1f36004) at _mtx_lock_flags+0x5b
iwi_watchdog(c1f43400) at iwi_watchdog+0x2a
if_slowtimo(0) at if_slowtimo+0x4a
softclock(0) at softclock+0x1e7
ithread_loop(c1e54d00,dda84d38,c1e54d00,c051e450,0) at ithread_loop+0x11c
fork_exit(c051e450,c1e54d00,dda84d38) at fork_exit+0xa0
fork_trampoline() at fork_trampoline+0x8
--- trap 0x1, eip = 0, esp = 0xdda84d6c, ebp = 0 ---
		
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