Date: Thu, 14 Jan 1999 12:29:40 -0500 (EST) From: Samir Jain <skjain@torrentnet.com> To: FreeBSD-gnats-submit@FreeBSD.ORG Subject: kern/9493: kernel panic in ip_output() (ip_output.c:360) Message-ID: <199901141729.MAA17713@limca.torrentnet.com>
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>Number: 9493
>Category: kern
>Synopsis: kernel panic in ip_output() (ip_output.c:360)
>Confidential: yes
>Severity: critical
>Priority: high
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Thu Jan 14 09:40:00 PST 1999
>Closed-Date:
>Last-Modified:
>Originator: Samir Jain
>Release: main (2.0)
>Organization:
Engg
>Environment:
>Description:
Do the natisp test with greater than or equal to 2 region 2 pop
with ISIS and BGP enabled (Jeff's script test/20dev/tisis2 on t25).
After some time (sometimes hrs), the kernel panics with the following
stack trace:
syscall()
sendit() uipc_syscalls.c:489
| softclock() kern_clock.c:789
| pfslowtimo() uipc_domain.c:227
| vhost_ipintr() ip_input.c:697
\|/ ipintr() ip_input.c:670
ip_input() ip_input.c:556
ip_forward() ip_input.c:1528
icmp_error() ip_icmp.c:196
icmp_reflect() ip_icmp.c:628
icmp_send() ip_icmp.c:668
ip_output() ip_output.c:360
The top half of the trace varies, but is the same from vhost_ipintr()
to ip_output() always.
This is seen on a test m/c with a vhost/vnet based implementation.
>How-To-Repeat:
You need to compile a kernel image without NETCONSOLE - otherwise the test
seems to hang for some reason. I was using TESTHOST-WD with NETCONSOLE option
disabled. Use this kernel image to boot the m/c.
To do kernel debugging, you need to enable COMCONSOLE and use
a serial line console to enable gdb - Bakul showed me how to do it ...
Run Jeff's tisis2 setup - it generates the vhost/vnet configuration and starts
the test.
>Fix:
>Release-Note:
>Audit-Trail:
>Unformatted:
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