New ipfilter LOR?

[David Long]

Source updated from RELENG_5  2005-04-21.
Last update was 2005-01-26 and we have not seen this LOR before.


lock order reversal
1st 0xc2cc1798 inp (udpinp) @ /usr/src/sys/netinet/udp_usrreq.c:807
2nd 0xc0872900 ipf filter rwlock (ipf filter rwlock) @ 
/usr/src/sys/contrib/ipfilter/netinet/fil.c:1135
KDB: stack backtrace:
kdb_backtrace(0,ffffffff,c0897350,c0895be0,c082ba2c) at kdb_backtrace+0x29
witness_checkorder(c0872900,1,c0798caa,46f) at witness_checkorder+0x544
_sx_slock(c0872900,c0798caa,46f,0,0) at _sx_slock+0x50
fr_check(c2c2dbd0,14,c2c14800,1,d6f06ab0) at fr_check+0x368
fr_check_wrapper(0,d6f06ab0,c2c14800,2,c2cc1708) at fr_check_wrapper+0x2a
pfil_run_hooks(c08bd1e0,d6f06b48,c2c14800,2,c2cc1708) at pfil_run_hooks+0xbd
ip_output(c2c2db00,0,0,0,0) at ip_output+0x8f0
udp_output(c2cc1708,c2c2db00,0,0,c2d4ca80) at udp_output+0x493
udp_send(c2cc0654,0,c2c2db00,0,0) at udp_send+0x1a
sosend(c2cc0654,0,d6f06c50,c2c2db00,0) at sosend+0x5e7
kern_sendit(c2d4ca80,7,d6f06ccc,0,0) at kern_sendit+0x104
sendit(c2d4ca80,7,d6f06ccc,0,bfbfd1b1) at sendit+0x161
sendto(c2d4ca80,d6f06d14,6,1,202) at sendto+0x4d
syscall(2f,2f,2f,8084000,283410a4) at syscall+0x243
Xint0x80_syscall() at Xint0x80_syscall+0x1f

We also see LOR 056 (http://sources.zabbadoz.net/freebsd/lor.html)
which also haven't occurred on our system before now.

Rgds.

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