Re: What is causing these hardware errors?

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On 07/21/2017 06:08 AM, Sherman Grunewagen wrote:
I am getting this block of messages put into /var/log/messages
every few minutes (or seconds) since I received this laptop and
installed F25. The install is updated as of two days ago.
Macine is a new Dell Precision 7520.

Jul 21 02:48:53 new_pons kernel: mce: [Hardware Error]: Machine check events logged Jul 21 02:48:53 new_pons mcelog[953]: mcelog: Family 6 Model 9e CPU: only decoding architectural errors Jul 21 02:48:53 new_pons mcelog[953]: Hardware event. This is not a software error.
Jul 21 02:48:53 new_pons mcelog[953]: MCE 0
Jul 21 02:48:53 new_pons mcelog[953]: CPU 2 BANK 0 TSC 2dce95564215
Jul 21 02:48:53 new_pons mcelog[953]: TIME 1500630533 Fri Jul 21 02:48:53 2017
Jul 21 02:48:53 new_pons mcelog[953]: MCG status:
Jul 21 02:48:53 new_pons mcelog[953]: MCi status:
Jul 21 02:48:53 new_pons mcelog[953]: Error overflow
Jul 21 02:48:53 new_pons mcelog[953]: Corrected error
Jul 21 02:48:53 new_pons mcelog[953]: Error enabled
Jul 21 02:48:53 new_pons mcelog[953]: MCA: Internal parity error
Jul 21 02:48:53 new_pons mcelog[953]: STATUS d00000c000010005 MCGSTATUS 0
Jul 21 02:48:53 new_pons mcelog[953]: MCGCAP c0a APICID 4 SOCKETID 0
Jul 21 02:48:53 new_pons mcelog[953]: CPUID Vendor Intel Family 6 Model 158
Jul 21 02:48:53 new_pons mcelog[953]: mcelog: warning: 24 bytes ignored in each record
Jul 21 02:48:53 new_pons mcelog[953]: mcelog: consider an update
Jul 21 02:48:54 new_pons abrt-dump-journal-oops[1020]: abrt-dump-journal-oops: Found oopses: 1 Jul 21 02:48:54 new_pons abrt-dump-journal-oops[1020]: abrt-dump-journal-oops: Creating problem directories Jul 21 02:48:55 new_pons abrt-dump-journal-oops[1020]: Reported 1 kernel oopses to Abrt

This looks to be a CPU cache memory error that is correctable. I have a quad-core with one core giving correctable cache errors. Turning the core off reduces my net performance significantly so instead I turned off MCE errors (besides, they were crapping all over my xterms).

Your call as to whether your work is critical enough to replace the CPU. Good excuse to tell your SO you have to upgrade ;D

Mike Wright
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