LOR

Hello!

When I establish a dialup link with my ISP using ppp(8), I get the
following LOR (very recent -current):

lock order reversal
 1st 0xc47ab790 rtentry (rtentry) _at_ /usr/src/sys/net/rtsock.c:388
 2nd 0xc442367c radix node head (radix node head) _at_ /usr/src/sys/net/route.c:133

Stack backtrace:
backtrace(c0654bae,c442367c,c065a582,c065a582,c065a5d8) at backtrace+0x17
witness_lock(c442367c,8,c065a5d8,85,246) at witness_lock+0x672
_mtx_lock_flags(c442367c,0,c065a5d8,85,117) at _mtx_lock_flags+0xba
rtalloc1(c478de6c,1,10000,3d7,ddb62b44) at rtalloc1+0x79
rt_setgate(c47ab700,c44f1280,c478de6c,184,0) at rt_setgate+0x268
route_output(c1929b00,c4581100,7c,c1929b00,1f84) at route_output+0x62e
raw_usend(c4581100,0,c1929b00,0,0) at raw_usend+0x73
rts_send(c4581100,0,c1929b00,0,0) at rts_send+0x35
sosend(c4581100,0,ddb62c7c,c1929b00,0) at sosend+0x44d
soo_write(c4504088,ddb62c7c,c478df00,0,c4783ab0) at soo_write+0x70
dofilewrite(c4783ab0,c4504088,3,bfbfec40,7c) at dofilewrite+0xf8
write(c4783ab0,ddb62d10,c066536b,3ed,3) at write+0x6e
syscall(2f,2f,2f,3,3) at syscall+0x2c0
Xint0x80_syscall() at Xint0x80_syscall+0x1d
--- syscall (4), eip = 0x2827b35f, esp = 0xbfbfebfc, ebp = 0xbfbfec28 ---


This LOR appeared after massive network stack locking changes by sam_at_
(but I am not 100% sure that they cause it).