kern/171697: [ip6] [ndp] panic when changing routes
Eugene M. Zheganin
eugene at zhegan.in
Mon Sep 17 07:20:08 UTC 2012
>Number: 171697
>Category: kern
>Synopsis: [ip6] [ndp] panic when changing routes
>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: Mon Sep 17 07:20:07 UTC 2012
>Closed-Date:
>Last-Modified:
>Originator: Eugene M. Zheganin
>Release: 9.1-PRERELEASE
>Organization:
Vivat-Trade LLC
>Environment:
FreeBSD taiga 9.1-PRERELEASE FreeBSD 9.1-PRERELEASE #0: Fri Aug 17 13:55:19 YEKT 2012 emz at taiga:/usr/obj/usr/src/sys/TAIGADBG amd64
>Description:
I changed the route after it was incorrectly changed by net/bind6 and got panic:
[emz at taiga:~]# route change -inet6 2001:470:1f09:14c0::/120 -iface vlan22
change net 2001:470:1f09:14c0::/120: gateway vlan22
[emz at taiga:~]# Write failed: Broken pipe
panic: sin_family 18
cpuid = 2
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0x2a
kdb_backtrace() at kdb_backtrace+0x37
panic() at panic+0x1d8
in6_lltable_lookup() at in6_lltable_lookup+0x44d
nd6_output_lle() at nd6_output_lle+0x349
nd6_output() at nd6_output+0x18
ip6_output() at ip6_output+0x122f
nd6_na_output_fib() at nd6_na_output_fib+0x4fa
nd6_ns_input() at nd6_ns_input+0x992
icmp6_input() at icmp6_input+0xb06
ip6_input() at ip6_input+0x8f4
netisr_dispatch_src() at netisr_dispatch_src+0x152
ether_demux() at ether_demux+0x17d
ether_nh_input() at ether_nh_input+0x20e
netisr_dispatch_src() at netisr_dispatch_src+0x152
ether_demux() at ether_demux+0x86
ether_nh_input() at ether_nh_input+0x20e
netisr_dispatch_src() at netisr_dispatch_src+0x152
bce_intr() at bce_intr+0x46a
intr_event_execute_handlers() at intr_event_execute_handlers+0x6a
ithread_loop() at ithread_loop+0xb4
fork_exit() at fork_exit+0x135
fork_trampoline() at fork_trampoline+0xe
--- trap 0, rip = 0, rsp = 0xffffff811a901cf0, rbp = 0 ---
Uptime: 19d0h34m11s
Dumping 1472 out of 4079 MB:panic: Bad tailq NEXT(0xfffffe0002a74160->tqh_last) != NULL
cpuid = 2
Uptime: 19d0h34m11s
aac0: shutting down controller....
Got a routing table snapshot just before the route was changed:
Internet6:
Destination Gateway Flags Netif Expire
::/96 ::1 UGRS lo0 =>
default 2001:470:1f08:14c0::1 UGS gif0
::1 link#10 UH lo0
::ffff:0.0.0.0/96 ::1 UGRS lo0
2001:470:1f08:14c0::1 link#30 UH gif0
2001:470:1f08:14c0::2 link#30 UHS lo0
2001:470:1f09:14c0::/120 fe80::21a:64ff:fe21:8e80%vlan1 UG1 vlan1
2001:470:1f09:14c0::1 link#20 UHS lo0
fd00::/120 fe80::21a:64ff:fe21:8e80%vlan1 UG1 vlan1
fd00::300/120 link#11 U vlan1
fd00::301 link#31 UHS lo0
fd00::316 link#11 UHS lo0
fd00::700/120 link#18 U vlan15
fd00::701 link#32 UHS lo0
fd00::702 link#18 UHS lo0
fd00::d00/120 fe80::21a:64ff:fe21:8e80%vlan1 UG1 vlan1
fd00::b400/120 fe80::21a:64ff:fe21:8e80%vlan1 UG1 vlan1
fd00::b401 fe80::21a:64ff:fe21:8e80%vlan1 UGH1 vlan1
fd00::b40a fe80::21a:64ff:fe21:8e80%vlan1 UGH1 vlan1
fe80::/10 ::1 UGRS lo0
fe80::%bce0/64 link#1 U bce0
fe80::21a:64ff:fec6:a87c%bce0 link#1 UHS lo0
fe80::%lo0/64 link#10 U lo0
fe80::1%lo0 link#10 UHS lo0
fe80::%vlan1/64 link#11 U vlan1
fe80::21a:64ff:fec6:a87c%vlan1 link#11 UHS lo0
fe80::%vlan2/64 link#12 U vlan2
fe80::21a:64ff:fec6:a87c%vlan2 link#12 UHS lo0
fe80::%vlan5/64 link#13 U vlan5
fe80::21a:64ff:fec6:a87c%vlan5 link#13 UHS lo0
fe80::%vlan9/64 link#14 U vlan9
fe80::21a:64ff:fec6:a87c%vlan9 link#14 UHS lo0
fe80::%vlan10/64 link#15 U vlan10
fe80::21a:64ff:fec6:a87c%vlan10 link#15 UHS lo0
fe80::%vlan11/64 link#16 U vlan11
fe80::21a:64ff:fec6:a87c%vlan11 link#16 UHS lo0
fe80::%vlan12/64 link#17 U vlan12
fe80::21a:64ff:fec6:a87c%vlan12 link#17 UHS lo0
fe80::%vlan15/64 link#18 U vlan15
fe80::21a:64ff:fec6:a87c%vlan15 link#18 UHS lo0
fe80::%vlan21/64 link#19 U vlan21
fe80::21a:64ff:fec6:a87c%vlan21 link#19 UHS lo0
fe80::%vlan22/64 link#20 U vlan22
fe80::21a:64ff:fec6:a87c%vlan22 link#20 UHS lo0
fe80::%vlan23/64 link#21 U vlan23
fe80::21a:64ff:fec6:a87c%vlan23 link#21 UHS lo0
fe80::%vlan104/64 link#22 U vlan104
fe80::21a:64ff:fec6:a87c%vlan104 link#22 UHS lo0
fe80::%vlan818/64 link#23 U vlan818
fe80::21a:64ff:fec6:a87c%vlan818 link#23 UHS lo0
fe80::%gif0/64 link#30 U gif0
fe80::21a:64ff:fec6:a87c%gif0 link#30 UHS lo0
fe80::%ng0/64 link#33 U ng0
fe80::21a:64ff:fec6:a87c%ng0 link#33 UHS lo0
fe80::%ng1/64 link#34 U ng1
fe80::21a:64ff:fec6:a87c%ng1 link#34 UHS lo0
ff01::%bce0/32 fe80::21a:64ff:fec6:a87c%bce0 U bce0
ff01::%lo0/32 ::1 U lo0
ff01::%vlan1/32 fe80::21a:64ff:fec6:a87c%vlan1 U vlan1
ff01::%vlan2/32 fe80::21a:64ff:fec6:a87c%vlan2 U vlan2
ff01::%vlan5/32 fe80::21a:64ff:fec6:a87c%vlan5 U vlan5
ff01::%vlan9/32 fe80::21a:64ff:fec6:a87c%vlan9 U vlan9
ff01::%vlan10/32 fe80::21a:64ff:fec6:a87c%vlan10 U vlan10
ff01::%vlan11/32 fe80::21a:64ff:fec6:a87c%vlan11 U vlan11
ff01::%vlan12/32 fe80::21a:64ff:fec6:a87c%vlan12 U vlan12
ff01::%vlan15/32 fe80::21a:64ff:fec6:a87c%vlan15 U vlan15
ff01::%vlan21/32 fe80::21a:64ff:fec6:a87c%vlan21 U vlan21
ff01::%vlan22/32 2001:470:1f09:14c0::1 U vlan22
ff01::%vlan23/32 fe80::21a:64ff:fec6:a87c%vlan23 U vlan23
ff01::%vlan104/32 fe80::21a:64ff:fec6:a87c%vlan104 U vlan104
ff01::%vlan818/32 fe80::21a:64ff:fec6:a87c%vlan818 U vlan818
ff01::%gif0/32 2001:470:1f08:14c0::2 U gif0
ff01::%ng0/32 fe80::21a:64ff:fec6:a87c%ng0 U ng0
ff01::%ng1/32 fe80::21a:64ff:fec6:a87c%ng1 U ng1
ff02::/16 ::1 UGRS lo0
ff02::%bce0/32 fe80::21a:64ff:fec6:a87c%bce0 U bce0
ff02::%lo0/32 ::1 U lo0
ff02::%vlan1/32 fe80::21a:64ff:fec6:a87c%vlan1 U vlan1
ff02::%vlan2/32 fe80::21a:64ff:fec6:a87c%vlan2 U vlan2
ff02::%vlan5/32 fe80::21a:64ff:fec6:a87c%vlan5 U vlan5
ff02::%vlan9/32 fe80::21a:64ff:fec6:a87c%vlan9 U vlan9
ff02::%vlan10/32 fe80::21a:64ff:fec6:a87c%vlan10 U vlan10
ff02::%vlan11/32 fe80::21a:64ff:fec6:a87c%vlan11 U vlan11
ff02::%vlan12/32 fe80::21a:64ff:fec6:a87c%vlan12 U vlan12
ff02::%vlan15/32 fe80::21a:64ff:fec6:a87c%vlan15 U vlan15
ff02::%vlan21/32 fe80::21a:64ff:fec6:a87c%vlan21 U vlan21
ff02::%vlan22/32 2001:470:1f09:14c0::1 U vlan22
ff02::%vlan23/32 fe80::21a:64ff:fec6:a87c%vlan23 U vlan23
ff02::%vlan104/32 fe80::21a:64ff:fec6:a87c%vlan104 U vlan104
ff02::%vlan818/32 fe80::21a:64ff:fec6:a87c%vlan818 U vlan818
ff02::%gif0/32 2001:470:1f08:14c0::2 U gif0
ff02::%ng0/32 fe80::21a:64ff:fec6:a87c%ng0 U ng0
ff02::%ng1/32 fe80::21a:64ff:fec6:a87c%ng1 U ng1
>How-To-Repeat:
Don't know if it's repeatable.
>Fix:
>Release-Note:
>Audit-Trail:
>Unformatted:
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