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FreeBSD lock order reversal (LOR) #195

ID 195
state patched
responsible mlaier
reported first 2006-12-06
reported last 2006-12-06
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LOR
lock order reversal:
 1st 0xc2a2cb54 iwi0 (network driver) @ sys/modules/iwi/../../dev/iwi/if_iwi.c:1649
 2nd 0xc2ba077c radix node head (radix node head) @ sys/net/route.c:147
		
KDB: stack backtrace:
db_trace_self_wrapper(c08ee106,d4a8f9dc,c068c311,c08f004c,c2ba077c,...) at db_trace_self_wrapper+0x26
kdb_backtrace(c08f004c,c2ba077c,c08efa59,c08efa59,c08f8062,...) at kdb_backtrace+0x2e
witness_checkorder(c2ba077c,9,c08f8062,93,c08efdf6,...) at witness_checkorder+0x6d1
_mtx_lock_flags(c2ba077c,0,c08f8062,93,80246,...) at _mtx_lock_flags+0xbc
rtalloc1(d4a8fa84,0,0,c29c5540,210,...) at rtalloc1+0x66
arplookup(101a8c0,0,0,d4a8fad0,c064abcc,...) at arplookup+0x55
in_arpinput(c2a4b400,c2963680,d4a8fb54,c05646c2,12,...) at in_arpinput+0x2ed
arpintr(c2a4b400,6ebf6516,c2a83832,c2a40800,c2a83832,...) at arpintr+0x104
netisr_dispatch(12,c2a4b400,6,3,0,...) at netisr_dispatch+0x62
ether_demux(c2a40800,c2a4b400,3,0,3,...) at ether_demux+0x30f
ether_input(c2a40800,c2a4b400,5090992b,18,d4a8fbf0,...) at ether_input+0x275
ieee80211_deliver_data(c2a2c004,c2ca2c00,c2a4b400,18,558,...) at ieee80211_deliver_data+0x14a
ieee80211_input(c2a2c004,c2a4b400,c2ca2c00,3e,0,...) at ieee80211_input+0x9dc
iwi_intr(c2a2c000,d4a8fcd0,c064abcc,c09cfbd0,1,...) at iwi_intr+0x577
ithread_execute_handlers(c29c4460,c28ef780,c08e88bb,2fd,c29c5540,...) at ithread_execute_handlers+0x168
ithread_loop(c29fa640,d4a8fd38,c08e86ab,33a,c29c4460,...) at ithread_loop+0x83
fork_exit(c063b590,c29fa640,d4a8fd38) at fork_exit+0xd1
fork_trampoline() at fork_trampoline+0x8
--- trap 0x1, eip = 0, esp = 0xd4a8fd6c, ebp = 0 ---
		
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