[Fedora-xen] kernel OoPs after updating to 2.6.20-1.2933.fc6xen

[Asrai khn]

Hi,

Today after updating kernel-xen to 2.6.20-1.2933.fc6xen on one of our host I
got kernel oops and machine rebooted, when it come back again i have no
other choice but to edit grub.conf and make the last working kernel '
2.6.19-1.2911.6.5.fc6xen' the default one which working fine.

DemU(s) working fine with with same kernel 2.6.20-1.2933.fc6xen, we use
loopback mounted fs for domU(s)

Here are the messages i found on screen before machine got rebooted (Note:
machine is remote to me thousands of miles away therefore i can't check its
boot screen :-S )

Now I am reluctant to update  kernel-xen on our other remote hosts, never
got into such issue on FC6 while updated kernel-xen. In help/suggestion will
be greatly appreciated.

------

[root at xxxxx ~]#
Message from syslogd at xxxxx at Mon Mar 26 20:17:02 2007 ...
xxxxx kernel: Oops: 0003 [#1]

Message from syslogd at xxxxx at Mon Mar 26 20:17:02 2007 ...
xxxxx kernel: SMP

Message from syslogd at xxxxx at Mon Mar 26 20:17:02 2007 ...
xxxxx kernel: CPU:    0

Message from syslogd at xxxxx at Mon Mar 26 20:17:02 2007 ...
xxxxx kernel: EIP:    0061:[<c0548ceb>]    Not tainted VLI

Message from syslogd at xxxxx at Mon Mar 26 20:17:02 2007 ...
xxxxx kernel: EFLAGS: 00010017   (2.6.20-1.2933.fc6xen #1)

Message from syslogd at xxxxx at Mon Mar 26 20:17:02 2007 ...
xxxxx kernel: EIP is at evtchn_do_upcall+0x55/0x97

Message from syslogd at xxxxx at Mon Mar 26 20:17:02 2007 ...
xxxxx kernel: eax: 00000010   ebx: 00000000   ecx: eaa35fe4   edx: ffffffec

Message from syslogd at xxxxx at Mon Mar 26 20:17:02 2007 ...
xxxxx kernel: esi: 00000001   edi: f5416000   ebp: fffffffe   esp: eaa35fc4

Message from syslogd at xxxxx at Mon Mar 26 20:17:02 2007 ...
xxxxx kernel: ds: 007b   es: 007b   ss: 0069

Message from syslogd at xxxxx at Mon Mar 26 20:17:02 2007 ...
xxxxx kernel: Process find (pid: 4000, ti=eaa35000 task=ed7b12f0
task.ti=eaa35000)

Message from syslogd at xxxxx at Mon Mar 26 20:17:03 2007 ...
xxxxx kernel: Stack: 00000000 00000000 00000003 eaa35fac eaa35fe4 eaa35000
c0404ff2 eaa35fe4

Message from syslogd at xxxxx at Mon Mar 26 20:17:03 2007 ...
xxxxx kernel:        b7ff0402 00000073 00000212 bf93c920 0000007b 00000000
00000000

Message from syslogd at xxxxx at Mon Mar 26 20:17:03 2007 ...
xxxxx kernel: Call Trace:

Message from syslogd at xxxxx at Mon Mar 26 20:17:03 2007 ...
xxxxx kernel:  =======================

Message from syslogd at xxxxx at Mon Mar 26 20:17:03 2007 ...
xxxxx kernel:  [<c0404ff2>] hypervisor_callback+0x46/0x50

Message from syslogd at xxxxx at Mon Mar 26 20:17:03 2007 ...
xxxxx kernel: Code: bd fe ff ff ff 88 d9 89 d8 c1 e0 05 d3 c5 89 04 24 eb 29
0f bc c0 03 04 24 8b 14 85 80 f0 6f c0 83 fa ff 74 12 8b 4c 24 1c f7 d2 <89>
51 28 89 c8 e8 16 db eb ff eb 05 e8 22 2e 00 00 8b 44 24 04

Message from syslogd at xxxxx at Mon Mar 26 20:17:03 2007 ...
xxxxx kernel: EIP: [<c0548ceb>] evtchn_do_upcall+0x55/0x97 SS:ESP
0069:eaa35fc4
Read from remote host xxxxx.xxxx.com: Connection reset by peer
Connection to xxxxx.xxxx.com closed.
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