netisr panic?

Hi

I have this consistently with:

FreeBSD firewall2.jnb1.gp-online.net 10.0-CURRENT FreeBSD 10.0-CURRENT #30 r243156: Fri Nov 16 20:12:33 SAST 2012     ianf_at_firewall2.jnb1.gp-online.net:/usr/obj/usr/src/sys/FIREWALL  amd64


Fatal trap 12: page fault while in kernel mode
cpuid = 4; apic id = 04
fault virtual address   = 0xc
fault code              = supervisor read data, page not present
instruction pointer     = 0x20:0xffffffff8050f534
stack pointer           = 0x28:0xffffff846384e9c0
frame pointer           = 0x28:0xffffff846384ea00
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         = 11 (irq266: igb1:que 0)
trap number             = 12
panic: page fault
cpuid = 4
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0x2a
panic() at panic+0x1ce
trap_fatal() at trap_fatal+0x290
trap_pfault() at trap_pfault+0x21f
trap() at trap+0x2b4
calltrap() at calltrap+0x8
--- trap 0xc, rip = 0xffffffff8050f534, rsp = 0xffffff846384e9c0, rbp = 0xffffff846384ea00 ---
ether_nh_input() at ether_nh_input+0x94
netisr_dispatch_src() at netisr_dispatch_src+0x212
igb_rxeof() at igb_rxeof+0x3f0
igb_msix_que() at igb_msix_que+0xfa
intr_event_execute_handlers() at intr_event_execute_handlers+0xfd
ithread_loop() at ithread_loop+0x9e
fork_exit() at fork_exit+0x11e
fork_trampoline() at fork_trampoline+0xe
--- trap 0, rip = 0, rsp = 0xffffff846384ecb0, rbp = 0 ---
Uptime: 2h2m15s
Dumping 1241 out of 16368 MB:..2%..11%..21%..31%..42%..51%..61%..71%..82%..91%

#0  doadump (textdump=1) at /usr/src/sys/kern/kern_shutdown.c:266
266             if (textdump && textdump_pending) {
(kgdb) #0  doadump (textdump=1) at /usr/src/sys/kern/kern_shutdown.c:266
#1  0xffffffff8044af04 in kern_reboot (howto=260)
    at /usr/src/sys/kern/kern_shutdown.c:449
#2  0xffffffff8044b487 in panic (fmt=0x1 <Address 0x1 out of bounds>)
    at /usr/src/sys/kern/kern_shutdown.c:637
#3  0xffffffff80605bd0 in trap_fatal (frame=0xc, eva=<value optimized out>)
    at /usr/src/sys/amd64/amd64/trap.c:872
#4  0xffffffff80605f3f in trap_pfault (frame=0xffffff846384e910, usermode=0)
    at /usr/src/sys/amd64/amd64/trap.c:789
#5  0xffffffff806062f4 in trap (frame=0xffffff846384e910)
    at /usr/src/sys/amd64/amd64/trap.c:463
#6  0xffffffff805eff6f in calltrap ()
    at /usr/src/sys/amd64/amd64/exception.S:228
#7  0xffffffff8050f534 in ether_nh_input (m=0xfffffe012521e700)
    at /usr/src/sys/net/if_ethersubr.c:484
#8  0xffffffff8051a602 in netisr_dispatch_src (proto=9, 
    source=<value optimized out>, m=<value optimized out>)
    at /usr/src/sys/net/netisr.c:1013
#9  0xffffffff803188b0 in igb_rxeof (que=0xfffffe000a183800, count=499, 
    done=0x0) at /usr/src/sys/dev/e1000/if_igb.c:4688
#10 0xffffffff803218da in igb_msix_que (arg=<value optimized out>)
    at /usr/src/sys/dev/e1000/if_igb.c:1596
#11 0xffffffff804208cd in intr_event_execute_handlers (
    p=<value optimized out>, ie=0xfffffe000a19f100)
    at /usr/src/sys/kern/kern_intr.c:1272
#12 0xffffffff804220fe in ithread_loop (arg=0xfffffe000a1c6660)
    at /usr/src/sys/kern/kern_intr.c:1285
#13 0xffffffff8041d52e in fork_exit (
    callout=0xffffffff80422060 <ithread_loop>, arg=0xfffffe000a1c6660, 
    frame=0xffffff846384ec00) at /usr/src/sys/kern/kern_fork.c:995
#14 0xffffffff805f042e in fork_trampoline ()
    at /usr/src/sys/amd64/amd64/exception.S:602
#15 0x0000000000000000 in ?? ()



-- 
Meditating Guru
Ian Freislich