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We have a Dell PowerEdge 6650 with quad xeon 2.8GHz processors and 2Gb of DDR SDRam. We randomly frezze, receiving the following error:
CPU1: Machine Check Exception: 0000000000000004
Kernel panic: Unable to continue In interrupt handler – not syncing
This happens approximately 3 to 4 times per week, at all different times of the day/night.
I saw a lot of threads where people thought it may be memory or CPU related. At first we believed it to be a processor problem. Dell swapped out the processors and the mother board. We still had the same problems. Eventually Dell was kind enough to send us an entire new system. We still have the same problem, leading us to believe that it cannot be hardware related.
Has anyone seen this problem, and been successful in fixing it?
i've only seen that error when the system had a bad processor. Have you tried updating the BIOS by chance? Maybe you should try loading a new Intel microcode on boot to fix a possible processor eratta. Have you tried running the system on only 1 or 2 processors?
We did upgrade the BIOS about three months ago. Prior to that Dell swapped the processors. Since that time the entire machine has been swapped. That's why we don't believe it is hardware related. This is the third set of processors and we still have the same problem.....
I am getting the same error with a dual opteron server. The machine has two Broadcom/Raidcore 8-channel raid cards and is running Fedora Core 2 (32-bit). I'm getting the error while attempting to rsync a 1TB raid on another RH9 server to the raid on this server. It's got me completely stumped.
Originally, when both processors were in, I wasn't getting the error message, but the machine would spontaneously reboot or hang. Now, I've removed a processor and swapped processor 1 into the processor 0 slot and I'm seeing the error message. The problem seems to have just started happening in the past week. Prior to that, the server was rock solid.