LOR icmp6_input/nd6_lookup

Kevin Day toasty at dragondata.com
Fri Feb 29 19:44:30 UTC 2008


This is from 7.0-RELEASE:

lock order reversal:
  1st 0xc3bde2b8 rtentry (rtentry) @ netinet6/nd6.c:1930
  2nd 0xc3af367c radix node head (radix node head) @ net/route.c:147
KDB: stack backtrace:
db_trace_self_wrapper
(c08af130,e11b8600,c0662bbe,c08b1592,c3af367c,...) at  
db_trace_self_wrapper+0x26
kdb_backtrace(c08b1592,c3af367c,c08b15f3,c08b15f3,c08b9ce7,...) at  
kdb_backtrace+0x29
witness_checkorder(c3af367c,9,c08b9cde,93,e11b8624,...) at  
witness_checkorder+0x6de
_mtx_lock_flags(c3af367c,0,c08b9cde,93,c066160b,...) at _mtx_lock_flags 
+0xbc
rtalloc1(e11b86e0,0,0,0,c3c9d01c,...) at rtalloc1+0x63
nd6_lookup(c3c9d024,0,c39fd800,c3bde258,c3bde258,...) at nd6_lookup+0x55
nd6_is_addr_neighbor(c3c9d01c,c39fd800,c08c1d75,78a,c09a5ed8,...) at  
nd6_is_addr_neighbor+0x3b
nd6_output(c39fd800,c39fd800,c3cf9b00,c3c9d01c,c3bde258,...) at  
nd6_output+0x10f
ip6_output(c3cf9b00,0,e11b88e0,0,0,...) at ip6_output+0x1081
icmp6_reflect(c3cf9b00,28,8,1,c08c96d0,...) at icmp6_reflect+0x42f
icmp6_input(e11b8c88,e11b8c70,3a,1d5,0,...) at icmp6_input+0x6dc
ip6_input(c3be2900,0,c08b9887,8c,c09a1e24,...) at ip6_input+0xe36
netisr_processqueue(c0955e30,0,c08b9887,f6,c3865a40,...) at  
netisr_processqueue+0x8b
swi_net(0,0,c08a938d,471,c3870364,...) at swi_net+0x9b
ithread_loop(c383ac90,e11b8d38,c08a9115,305,c3873000,...) at  
ithread_loop+0x1b5
fork_exit(c060fbe0,c383ac90,e11b8d38) at fork_exit+0xb8
fork_trampoline() at fork_trampoline+0x8
--- trap 0, eip = 0, esp = 0xe11b8d70, ebp = 0 ---

Are LOR's still PR-worthy?

-- Kevin



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