Re: Reporting 2 LORs

On Wednesday 06 December 2006 21:56, Nuno Antunes wrote:
> Hi All,
>
> I get these two lors on a lifebook 8010 laptop running current from
> 4th December.
>
> lock order reversal:
>  1st 0xc0a1c4b8 PFil hook read/write mutex (PFil hook read/write
> mutex) _at_ /usr/src/sys/net/pfil.c:73
>  2nd 0xc2e30964 pf task mtx (pf task mtx) _at_
> /usr/src/sys/modules/pf/../../contrib/pf/net/pf.c:6402
> KDB: stack backtrace:
> db_trace_self_wrapper(c08ee106,d4a8f994,c068c311,c08f004c,c2e30964,...)
> at db_trace_self_wrapper+0x26
> kdb_backtrace(c08f004c,c2e30964,c2e2f14d,c2e2f14d,c2e2e88c,...) at
> kdb_backtrace+0x2e
> witness_checkorder(c2e30964,9,c2e2e88c,1902,1,...) at
> witness_checkorder+0x6d1
> _mtx_lock_flags(c2e30964,0,c2e2e88c,1902,c29c5540,...) at
> _mtx_lock_flags+0xbc pf_test(1,c2a40800,d4a8faf4,0,0,...) at
> pf_test+0x87
> pf_check_in(0,d4a8faf4,c2a40800,1,0,...) at pf_check_in+0x4e
> pfil_run_hooks(c0a1c4a0,d4a8fb44,c2a40800,1,0,...) at
> pfil_run_hooks+0xa8
> ip_input(c2a4b700,47e30e21,c2a82032,c2a40800,c2a82032,...) at
> ip_input+0x281 netisr_dispatch(2,c2a4b700,6,3,0,...) at
> netisr_dispatch+0x62
> ether_demux(c2a40800,c2a4b700,3,0,3,...) at ether_demux+0x30f
> ether_input(c2a40800,c2a4b700,5050992b,18,d4a8fbf0,...) at
> ether_input+0x275
> ieee80211_deliver_data(c2a2c004,c2ca2c00,c2a4b700,18,558,...) at
> ieee80211_deliver_data+0x14a
> ieee80211_input(c2a2c004,c2a4b700,c2ca2c00,3d,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 ---
> lock order reversal:
>  1st 0xc2a2cb54 iwi0 (network driver) _at_
> /usr/src/sys/modules/iwi/../../dev/iwi/if_iwi.c:1649
>  2nd 0xc2ba077c radix node head (radix node head) _at_
> /usr/src/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 ---
>
> I am available to test any patches.

The second should be fixed in current as of if_iwi.c rev. 1.43  The first 
one seems strange and on first glance like a false positive (possibly as 
a result of the second), but please keep me posted if it keeps showing 
up.  Thanks.

-- 
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