Bug#642154: BUG: unable to handle kernel paging request at ffff8803bb6ad000

[Moritz Muehlenhoff <jmm@inutil.org>]

reassign 642154 src:linux
thanks

On Tue, Sep 20, 2011 at 01:00:45AM +0300, rush wrote:
> Package: linux-2.6
> Version: 3.0.0-3
> Severity: important
> Tags: upstream
> 
> Dear Maintainer,
> 
>  I have some suspicious activities on my server: i've continiously repeated messages in dmesg about "BUG: unable to handle kernel paging request", also there are many messages like 
> 
> Message from syslogd@xen-dom0 at Sep 20 00:45:04 ...
>  kernel:[430010.207876] Oops: 0000 [#3453] SMP 
> 
> Message from syslogd@xen-dom0 at Sep 20 00:45:04 ...
>  kernel:[430010.213958] Stack:
> 
> Message from syslogd@xen-dom0 at Sep 20 00:45:04 ...
>  kernel:[430010.215212] Call Trace:
> 
> Message from syslogd@xen-dom0 at Sep 20 00:45:04 ...
>  kernel:[430010.215745] Code: e8 13 2a ff ff 66 90 c3 48 8b 97 48 04 00 00 48 85 d2 0f 84 d0 00 00 00 48 8b 47 08 f6 40 14 01 74 02 0f 0b 48 8b 05 45 4e 71 00 
> 
> Message from syslogd@xen-dom0 at Sep 20 00:45:04 ...
>  kernel:[430010.220251] CR2: ffff8803bbe85000
> 
> falling down in console or ssh session.
> 
> I've checked memory: they are fine (also they are new, just a week from a shop). I tried to reboot several times without any effect.
> 
> Also there is xen on this machine
> ii  libxenstore3.0                     4.1.1-2                          Xenstore communications library for Xen
> ii  xen-hypervisor-4.0-amd64           4.0.1-2                          The Xen Hypervisor on AMD64
> ii  xen-linux-system-3.0.0-1-amd64     3.0.0-3                          Xen system with Linux 3.0.0 on 64-bit PCs (meta-package)
> ii  xen-qemu-dm-4.0                    4.0.1-2                          Xen Qemu Device Model virtual machine hardware emulator
> ii  xen-tools                          4.2.1-1                          Tools to manage Xen virtual servers
> ii  xen-utils-4.0                      4.0.1-2                          XEN administrative tools
> ii  xen-utils-common                   4.1.0~rc6-1                      XEN administrative tools - common files
> ii  xenstore-utils                     4.1.1-2                          Xenstore utilities for Xen
> 
> It can take some influence on this messages?
> 
> Is it serious and my server in dangerous? How i make fix it or at least turn off messages in console and ssh session?
> By the way, munin monitoring sometimes show blank spaces in graphics when quering xen time. But xen virtual machine works fine without any problems.
> 
> Please help me =)

Does this still occur with the kernel and Xen from Wheezy?

Cheers,
        Moritz