[CentOS] How to diagnose "Unable to handle kernel paging request" kernel panic?
Bob Chiodini
bob.chiodini at nasa.gov
Mon Apr 30 10:22:36 UTC 2007
Jim King wrote:
>
> On Apr 28, 2007, at 8:16 AM, Steven Haigh wrote:
>
> On 28/04/2007, at 9:50 PM, Jim King wrote:
>
>> Does anyone know how to diagnose the error "Unable to handle kernel
>> paging request at virtual address xxxxxx"?
>>
>> I got this error (followed by a panic and a crash) on a server
>> running CentOS 4.4 with the 2.6.9-42.0.8.ELsmp kernel. The machine
>> is based on an Intel 975XBX2 motherboard (975X chipset). I have
>> built several of these and they have been extremely stable. This one
>> is an Asterisk PBX. It was up for over a month before this crash.
>>
>> Here is the exact kernel build info, from the restart log: "Linux
>> version 2.6.9-42.0.8.ELsmp (mockbuild at builder6.centos.org) (gcc
>> version 3.4.6 20060404 (Red Hat 3.4.6-3)) #1 SMP Tue Jan 30 12:33:47
>> EST 2007"
>>
>> Does the call trace indicate something to do with the ext3 file
>> system? I am not running RAID on this machine, it is just a single
>> drive with LVM.
>>
>> Any help that the list could be would be really great.
> <snip>
>
> Do you have a TDM400 card in these machines by chance? If so, are you
> running Zaptel 1.4.2? I had this same crash happen using zaptel 1.4.2.
> Updating to 1.4.2.1 fixed this.
>
> --
> Steven Haigh
>
> Email: netwiz at crc.id.au
> Web: http://www.crc.id.au
> Phone: (03) 9017 0597 - 0404 087 474
>
>
> There is a TDM2400P in the machine, but it is running the 1.2 branch.
> It is running Zaptel 1.2.13.
>
Jim,
It might be a memory problem. Try memtest86. It's probably on the
install disk.
Bob...
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