Crash on CURRENT from today

Got this crash on my SMP server just now. Kernel/world are ~12 hours old
(2005.02.19.12.00.00). It's not a debug kernel, so I cannot provide any
additional info right now.

Fatal trap 9: general protection fault while in kernel mode
cpuid = 1; apic id = 00
instruction pointer     = 0x8:0xc0612efc
stack pointer           = 0x10:0xdc95692c
frame pointer           = 0x10:0xdc956934
code segment            = base 0x0, limit 0xfffff, type 0x1b
                        = DPL 0, pres 1, def32 1, gran 1
processor eflags        = interrupt enabled, resume, IOPL = 0
current process         = 35 (swi1: net)
[thread pid 35 tid 100011 ]
Stopped at      in_matroute+0x2c:       jz      in_matroute+0x40
db> tr
Tracing pid 35 tid 100011 td 0xc1e0a170
in_matroute(3700779540,3254842880,6,3700779352,1105988990) at in_matroute+44
rtalloc1(3700779540,1,0,0,0) at rtalloc1+120
rtalloc_ign(3700779536,0,3256294640,3258642432,3271813772) at
rtalloc_ign+141
ip_output(3299431168,0,3700779536,0,0) at ip_output+1928
tcp_output(3274196300,2920,3227699936,3274196300,29310) at tcp_output+1885
tcp_input(3304263680,20,3253913600,1,0) at tcp_input+5459
ip_input(3304263680,0,1,2919755848,2945716017) at ip_input+219
netisr_processqueue(582,32627,4195731492,2933674284,500) at
netisr_processqueue+92
swi_net(0,0,0,0,0) at swi_net+265
ithread_loop(3252626688,3700780360,0,0,0) at ithread_loop+179
fork_exit(3226801008,3252626688,3700780360) at fork_exit+98
fork_trampoline() at fork_trampoline+8
--- trap 1, eip = 0, esp = 3700780412, ebp = 0 ---

/Daniel Eriksson