[Pkg-xen-devel] Bug#441249: Bug#441249: xen-hypervisor-3.0.3-1-i386-pae: "Problems using XEN when Quagga is running"

[Mikko Korkalo]

Hi,

And thanks for the quick answer.

First of all I discoved a very similar bug report in CentOS:
http://bugs.centos.org/view.php?id=2300

Guido Trotter kirjoitti:
> Are you using the standard vif-route scripts or have you customized them?
>   
Yes, I have customized my vif-route script.
I just tried with the original vif-route script, and same happened.
> Can you show us your quagga configuration too?
>   
I've changed the hostnames and passwords, but here they are:

<---------
xen1:~# cat /etc/quagga/ospfd.conf
hostname xen1.XXX.XXX
password XXX
enable password XXX
log file /var/log/ospfd.log
interface dummy0
interface eth0
interface dummy2
router ospf
ospf router-id 172.16.255.16
ospf abr-type standard
ospf rfc1583compatibility
network 172.16.255.16/32 area 0.0.0.0
network 172.16.255.11/28 area 0.0.0.0
passive-interface dummy0
passive-interface dummy2
redistribute static
area 0.0.0.0 authentication
xen1:~# cat /etc/quagga/zebra.conf
log file /var/log/quagga/zebra.log
hostname xen1.XXX.XXX
xen1:~#
--------->

> Can you manually do on the xen interfaces what the scripts would? How about
> doing it on some other interface configured in a similar way?
>   
I'll try this next week, see below :)
> Can you try to insulate it within quagga? Does this happen if you just run zebra
> but not ospfd?
>   
Wow... I disabled ospfd, /etc/init.d/quagga restart, and creating a
domain crashed xen.

Here's what happened.

<-------------
xen1:~# pico /etc/quagga/daemons
xen1:~# /etc/init.d/quagga restart
Stopping Quagga daemons (prio:0): (zebra) (bgpd) (ripd) (ripngd) (ospfd)
(ospf6d                                                                             
) (isisd).
Removing all routes made by zebra.
Nothing to flush.
Loading capability module if not yet done.
Starting Quagga daemons (prio:10): zebra.
xen1:~# xm list
Name                                      ID Mem(MiB) VCPUs State   Time(s)
Domain-0                                   0     1892     2 r-----    193.1
xen1:~# xm create test7.cfg
Using config file "/etc/xen/test7.cfg".
Started domain test7
xen1:~#
Message from syslogd at xen1 at Sun Sep  9 16:33:46 2007 ...
xen1 kernel: ------------[ cut here ]------------

Message from syslogd at xen1 at Sun Sep  9 16:33:46 2007 ...
xen1 kernel: kernel BUG at drivers/xen/core/evtchn.c:481!

Message from syslogd at xen1 at Sun Sep  9 16:33:46 2007 ...
xen1 kernel: invalid opcode: 0000 [#1]

Message from syslogd at xen1 at Sun Sep  9 16:33:46 2007 ...
xen1 kernel: SMP

Message from syslogd at xen1 at Sun Sep  9 16:33:46 2007 ...
xen1 kernel: CPU:    1

Message from syslogd at xen1 at Sun Sep  9 16:33:46 2007 ...
xen1 kernel: EIP is at retrigger+0x1f/0x35

Message from syslogd at xen1 at Sun Sep  9 16:33:46 2007 ...
xen1 kernel: eax: 00000000   ebx: 02080000   ecx: 00000018   edx: f55f6000

Message from syslogd at xen1 at Sun Sep  9 16:33:46 2007 ...
xen1 kernel: esi: c0324460   edi: 0000010a   ebp: 00000000   esp: ed78deb0

Message from syslogd at xen1 at Sun Sep  9 16:33:46 2007 ...
xen1 kernel: ds: 007b   es: 007b   ss: 0069

Message from syslogd at xen1 at Sun Sep  9 16:33:46 2007 ...
xen1 kernel: Process xenwatch (pid: 11[#0], ti=ed78c000 task=c03a50d0
task.ti=ed                                                                             
78c000)

Message from syslogd at xen1 at Sun Sep  9 16:33:46 2007 ...
xen1 kernel: Stack: c01418b1 c0324460 0000010a c0324488 c0141607
e6b6a2c0
000000                                                                             
00 00000000

Message from syslogd at xen1 at Sun Sep  9 16:33:46 2007 ...
xen1 kernel:        e6b6a2c0 c022077c 00000000 c0220b5c c0219ceb
00000010
000000                                                                             
00 0000020b

Message from syslogd at xen1 at Sun Sep  9 16:33:46 2007 ...
xen1 kernel:        0000020a 00000000 00000000 e74703b6 c02f10e4
ee868000
000000                                                                             
00 00000002

Message from syslogd at xen1 at Sun Sep  9 16:33:46 2007 ...
xen1 kernel: Call Trace:

Message from syslogd at xen1 at Sun Sep  9 16:33:46 2007 ...
xen1 kernel: Code: ee 85 f6 75 96 58 5a 5b 5e 5f 5d c3 0f b7 0c 85 00 89
38 c0
8                                                                             
b 15 a4 b9 2d c0 85 c9 74 1d 0f a3 8a 80 08 00 00 19 c0 85 c0 75 08 <0f>
0b e1
0                                                                             
1 ce c2 2b c0 f0 0f ab 8a 00 08 00 00 b8 01 00 00 00

Message from syslogd at xen1 at Sun Sep  9 16:33:46 2007 ...
xen1 kernel: EIP: [<c02157d6>] retrigger+0x1f/0x35 SS:ESP 0069:ed78deb0

xen1:~#
------------->

The hex codes got a bit mangled because they didn't fit in my putty window.
The computer (which is at work) doesn't respond to ping anymore, and I'm
at home currently, so I'll get back to this next week.

I appreciate the help.

Regards,
Mikko