Re: Recurring problem on 6-core FC14 system

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On 06/03/2011 12:38 AM, William Austin wrote:
> Recently I replaced MB/CPU/Memory on my main workstation, and a few
> days later I installed FC14.  The problems started then.  I have tried
> looking this one up in bugzilla, but so far with no luck.
>
> The system ran cleanly for 4 days on FC13 and the problems I describing
> started only after the new install.
>
>
> THE PROBLEM (h/w s/w details after this section):
>
> What is happening is that processes are dying randomly.  So far no core
> dumps however, so I can't go into it that way.  I did start a background
> process going however, and every 2 minutes I do a dump of dmseg to a file.
>
> Currently I have about 3000 saves of dmesg to look at.  Only a couple
> of things fall out:
>
> 1) 16 times I have hit a combination of both the message
>     "BUG: unable to handle kernel NULL pointer dereference at 0000000000000049"
>     "Oops: 0000 [#2] SMP" (or [#14] which I presume means
> 	both 1&  4)
>     (16 out of 3000 is statistically below the noise threshold)
> 2) 88 times I got the message:
>     "last sysfs file: /sys/devices/pci0000:00/0000:00:11.0/host2/target2:0:0/2:0:0:0/block/sdb/sdb6/stat"
I had this same type of problem with a newly-built FC14 system using an 
AMD 1090T on a Gigabyte mobo.  The problem, as it turned out,
   was that I needed to update the BIOS of the mobo to support the AMD 
1090T, and it has been rock-solid ever since then.  My mobo was
   an earlier-rev 880GM series.

So you might want to check to see that your BIOS is compatible with the 
1090T CPU.



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