freebsd stable - Jul 2007 - Getting this Fatal Trap with heavy network activity

Hi

Yesterday and today I've got this fatal trap

(kgdb) kldsyms
add symbol table from file
"/usr/obj/usr/src/sys/router/modules/usr/src/sys/modules/netgraph/ether/ng_ether.ko.debug"
at
        .text_addr = 0xc77b20a0
        .data_addr = 0xc77b4260
        .bss_addr = 0xc77b436c
(kgdb) bt
#0  0xc0552eec in doadump ()
#1  0xc0477a19 in db_fncall ()
#2  0xc0477792 in db_command ()
#3  0xc047789a in db_command_loop ()
#4  0xc047997a in db_trap ()
#5  0xc0571187 in kdb_trap ()
#6  0xc0700c5b in trap_fatal ()
#7  0xc0700962 in trap_pfault ()
#8  0xc07004dd in trap ()
#9  0xc06ec12a in calltrap ()
#10 0xc0594af0 in m_copym ()
#11 0xc0617548 in ip_fragment ()
#12 0xc06171b2 in ip_output ()
#13 0xc0607abc in dummynet_send ()
#14 0xc0607a18 in dummynet ()
#15 0xc05621d6 in softclock ()
#16 0xc0539c1c in ithread_execute_handlers ()
#17 0xc0539d66 in ithread_loop ()
#18 0xc053878f in fork_exit ()
#19 0xc06ec18c in fork_trampoline ()

System acts as a border gateway and runs pf,ipfw and mpd4

[]~> uname -a
FreeBSD intel 6.2-STABLE FreeBSD 6.2-STABLE #3: Mon Feb 26 21:34:53
MSK 2007     root@intel:/usr/obj/usr/src/sys/router  i386

[]~> mpd4 -v
Version 4.2.1 (root@intel 12:24  1-Jul-2007)

Can post kernel config if someone needs it.

Will try to csup back to 6.2-RELEASE and rebuild world+kernel.

Can anyone help me to find out what's the problem?

Thank you
  

-- 
                           mailto:adler@smtp.ru
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Alexey Sopov wrote:
> Hi
> 
> Yesterday and today I've got this fatal trap
> 
> (kgdb) kldsyms
> add symbol table from file
"/usr/obj/usr/src/sys/router/modules/usr/src/sys/modules/netgraph/ether/ng_ether.ko.debug"
at
>         .text_addr = 0xc77b20a0
>         .data_addr = 0xc77b4260
>         .bss_addr = 0xc77b436c
> (kgdb) bt
> #0  0xc0552eec in doadump ()
> #1  0xc0477a19 in db_fncall ()
> #2  0xc0477792 in db_command ()
> #3  0xc047789a in db_command_loop ()
> #4  0xc047997a in db_trap ()
> #5  0xc0571187 in kdb_trap ()
> #6  0xc0700c5b in trap_fatal ()
> #7  0xc0700962 in trap_pfault ()
> #8  0xc07004dd in trap ()
> #9  0xc06ec12a in calltrap ()
> #10 0xc0594af0 in m_copym ()
> #11 0xc0617548 in ip_fragment ()
> #12 0xc06171b2 in ip_output ()
> #13 0xc0607abc in dummynet_send ()
> #14 0xc0607a18 in dummynet ()
> #15 0xc05621d6 in softclock ()
> #16 0xc0539c1c in ithread_execute_handlers ()
> #17 0xc0539d66 in ithread_loop ()
> #18 0xc053878f in fork_exit ()
> #19 0xc06ec18c in fork_trampoline ()
I think this was a fatal trap 12 and you may want to try if updating to
6.2-STABLE helps.  There was some important related fixes in RELENG_6
but not yet merged to RELENG_6_2 (by jhb@).

Cheers,