panic: in_pcblookup_local (?)

Hi

I've been getting the following panic on recent current r249717.
Sadly the crashdump is useless.

Fatal trap 9: general protection fault while in kernel mode
cpuid = 15; apic id = 0f
instruction pointer     = 0x20:0xffffffff80546fbc
stack pointer           = 0x28:0xffffff846b677770
frame pointer           = 0x28:0xffffff846b6777b0
code segment            = base 0x0, limit 0xfffff, type 0x1b
                        = DPL 0, pres 1, long 1, def32 0, gran 1
processor eflags        = interrupt enabled, resume, IOPL = 0
current process         = 4361 (zabbix_agentd)
trap number             = 9
panic: general protection fault
cpuid = 15
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0x2a/frame 0xffffff846b677410
panic() at panic+0x13d/frame 0xffffff846b677510
trap_fatal() at trap_fatal+0x290/frame 0xffffff846b677570
trap() at trap+0xff/frame 0xffffff846b6776b0
calltrap() at calltrap+0x8/frame 0xffffff846b6776b0
--- trap 0x9, rip = 0xffffffff80546fbc, rsp = 0xffffff846b677770, rbp = 0xffffff846b6777b0 ---
in_pcblookup_local() at in_pcblookup_local+0x5c/frame 0xffffff846b6777b0
in_pcb_lport() at in_pcb_lport+0x109/frame 0xffffff846b677820
in_pcbbind_setup() at in_pcbbind_setup+0x16a/frame 0xffffff846b6778a0
in_pcbconnect_setup() at in_pcbconnect_setup+0x71e/frame 0xffffff846b677990
in_pcbconnect_mbuf() at in_pcbconnect_mbuf+0x59/frame 0xffffff846b6779e0
udp_connect() at udp_connect+0x11e/frame 0xffffff846b677a30
kern_connectat() at kern_connectat+0x1f5/frame 0xffffff846b677a90
sys_connect() at sys_connect+0x41/frame 0xffffff846b677ad0
amd64_syscall() at amd64_syscall+0x572/frame 0xffffff846b677bf0
Xfast_syscall() at Xfast_syscall+0xf7/frame 0xffffff846b677bf0
--- syscall (98, FreeBSD ELF64, sys_connect), rip = 0x80127104a, rsp = 0x7fffffff97a8, rbp = 0x8014f68d4 ---
Uptime: 20m13s
Dumping 1688 out of 16368 MB:..1%..11%..21%..31%..41%..51%..61%..71%..81%..91%
Dump complete
Automatic reboot in 15 seconds - press a key on the console to abort
Rebooting...
cpu_reset: Restarting BSP
cpu_reset_proxy: Stopped CPU 15

Ian

-- 
Ian Freislich