Can someone please look into this ipv6 panic? It is now my #1 panic on 6.0 (every few days, and I hardly make any use of ipv6 except for light nfs and tcp traffic), so it would be good to get it fixed before the release.
Kris
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Resent-Date: Tue, 6 Sep 2005 04:10:11 GMT
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Date: Tue, 6 Sep 2005 04:00:34 GMT
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Subject: kern/85780: 'panic: bogus refcnt 0' in routing/ipv6
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>Number: 85780
>Category: kern
>Synopsis: 'panic: bogus refcnt 0' in routing/ipv6
>Confidential: no
>Severity: non-critical
>Priority: low
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Tue Sep 06 04:10:11 GMT 2005
>Closed-Date:
>Last-Modified:
>Originator: Kris Kennaway
>Release: 7.0
>Organization:
FreeBSD
>Environment:
sparc64
>Description:
This panic occurred on an SMP sparc64 machine.
> panic: bogus refcnt 0
> cpuid = 0
> KDB: enter: panic
> [thread pid 15 tid 100003 ]
> Stopped at kdb_enter+0x3c: ta %xcc, 1
> db> wh
> Tracing pid 15 tid 100003 td 0xfffff8001fb75680
> panic() at panic+0x164
> rtfree() at rtfree+0x7c
> nd6_na_output() at nd6_na_output+0x4d0
> nd6_ns_input() at nd6_ns_input+0x704
> icmp6_input() at icmp6_input+0xc38
> ip6_input() at ip6_input+0xf5c
> netisr_processqueue() at netisr_processqueue+0x7c
> swi_net() at swi_net+0xdc
> ithread_loop() at ithread_loop+0x18c
> fork_exit() at fork_exit+0x94
> fork_trampoline() at fork_trampoline+0x8
It uses ipv6 to e.g. mount nfs /home directories and for ssh traffic, but the
machine seems to have been idle at the time of panic (no other processes active
on the other CPUs, and nothing much else running on the system either). core
available.
>How-To-Repeat:
It's only happened once so far.
>Fix:
>Release-Note:
>Audit-Trail:
>Unformatted:
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