# mce detected memory error

**URL:** <https://forums.suse.com/t/mce-detected-memory-error/34502>\
**Category:** SLES Hardware\
**Created:** [October 29, 2019, 11:15am UTC](https://forums.suse.com/t/mce-detected-memory-error/34502 "2019-10-29T11:15:56Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Thomson\_Rihad\_Dody](https://avatars.discourse-cdn.com/v4/letter/t/dc4da7/32.png) [@Thomson\_Rihad\_Dody](https://forums.suse.com/u/Thomson_Rihad_Dody)\
**Post date:** [October 29, 2019, 11:15am UTC](https://forums.suse.com/t/mce-detected-memory-error/34502/1 "2019-10-29T11:15:56Z")

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Hi Experts,  
I found some interesting issue in /var/log/messages. I installed SLES 12 SP3 for SAP on Lenovo X3850 X6.

2019-10-17T18:02:15.441498+07:00 hostname mcelog[5163]: Running trigger `socket-memory-error-trigger’  
2019-10-17T18:02:15.441503+07:00 hostname mcelog[5163]: Hardware event. This is not a software error.  
2019-10-17T18:02:15.441548+07:00 hostname mcelog[5163]: Corrected error  
2019-10-17T18:02:15.441575+07:00 hostname mcelog[5163]: Transaction: Memory read error  
2019-10-17T18:02:15.441579+07:00 hostname mcelog[5163]: MemCtrl: Corrected memory read error

After surfing some solution, I found this ([https://www.suse.com/support/kb/doc/?id=7022118](https://www.suse.com/support/kb/doc/?id=7022118)). I add that kernel options (mce=ignore\_ce).  
And then this error/invalid appear on

2019-10-29T00:33:32.041734+07:00 hostname kernel: [9.938351] DMAR-IR: Queued invalidation will be enabled to support x2apic and Intr-remapping.  
2019-10-29T00:33:32.041973+07:00 hostname kernel: [15.612800] mce: [Firmware Bug]: Ignoring request to disable invalid MCA bank 0.  
2019-10-29T00:33:32.041974+07:00 hostname kernel: [15.612801] mce: [Firmware Bug]: Ignoring request to disable invalid MCA bank 1.  
2019-10-29T00:33:32.041975+07:00 hostname kernel: [15.612801] mce: [Firmware Bug]: Ignoring request to disable invalid MCA bank 2.  
2019-10-29T00:33:32.041980+07:00 hostname kernel: [15.612802] mce: [Firmware Bug]: Ignoring request to disable invalid MCA bank 3.  
2019-10-29T00:33:32.041981+07:00 hostname kernel: [15.612803] mce: [Firmware Bug]: Ignoring request to disable invalid MCA bank 4.  
2019-10-29T00:33:32.041982+07:00 hostname kernel: [15.612804] mce: [Firmware Bug]: Ignoring request to disable invalid MCA bank 5.  
2019-10-29T00:33:32.041983+07:00 hostname kernel: [15.612805] mce: [Firmware Bug]: Ignoring request to disable invalid MCA bank 6.  
2019-10-29T00:33:32.041984+07:00 hostname kernel: [15.612806] mce: [Firmware Bug]: Ignoring request to disable invalid MCA bank 7.  
2019-10-29T00:33:32.041985+07:00 hostname kernel: [15.612806] mce: [Firmware Bug]: Ignoring request to disable invalid MCA bank 8.

How to solve this? 😕

Thanks and regards

Thomson Malau

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<div class="post-metadata">

**Author:** ![malcolmlewis](https://sea2.discourse-cdn.com/flex022/user_avatar/forums.suse.com/malcolmlewis/32/11375_2.png) [@malcolmlewis](https://forums.suse.com/u/malcolmlewis)\
**Post date:** [October 29, 2019, 2:27pm UTC](https://forums.suse.com/t/mce-detected-memory-error/34502/2 "2019-10-29T14:27:20Z")

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[QUOTE=thomsonmalau;58737]Hi Experts,  
I found some interesting issue in /var/log/messages. I installed SLES 12 SP3 for SAP on Lenovo X3850 X6.

2019-10-17T18:02:15.441498+07:00 hostname mcelog[5163]: Running trigger `socket-memory-error-trigger’  
2019-10-17T18:02:15.441503+07:00 hostname mcelog[5163]: Hardware event. This is not a software error.  
2019-10-17T18:02:15.441548+07:00 hostname mcelog[5163]: Corrected error  
2019-10-17T18:02:15.441575+07:00 hostname mcelog[5163]: Transaction: Memory read error  
2019-10-17T18:02:15.441579+07:00 hostname mcelog[5163]: MemCtrl: Corrected memory read error

After surfing some solution, I found this ([https://www.suse.com/support/kb/doc/?id=7022118](https://www.suse.com/support/kb/doc/?id=7022118)). I add that kernel options (mce=ignore\_ce).  
And then this error/invalid appear on

2019-10-29T00:33:32.041734+07:00 hostname kernel: [9.938351] DMAR-IR: Queued invalidation will be enabled to support x2apic and Intr-remapping.  
2019-10-29T00:33:32.041973+07:00 hostname kernel: [15.612800] mce: [Firmware Bug]: Ignoring request to disable invalid MCA bank 0.  
2019-10-29T00:33:32.041974+07:00 hostname kernel: [15.612801] mce: [Firmware Bug]: Ignoring request to disable invalid MCA bank 1.  
2019-10-29T00:33:32.041975+07:00 hostname kernel: [15.612801] mce: [Firmware Bug]: Ignoring request to disable invalid MCA bank 2.  
2019-10-29T00:33:32.041980+07:00 hostname kernel: [15.612802] mce: [Firmware Bug]: Ignoring request to disable invalid MCA bank 3.  
2019-10-29T00:33:32.041981+07:00 hostname kernel: [15.612803] mce: [Firmware Bug]: Ignoring request to disable invalid MCA bank 4.  
2019-10-29T00:33:32.041982+07:00 hostname kernel: [15.612804] mce: [Firmware Bug]: Ignoring request to disable invalid MCA bank 5.  
2019-10-29T00:33:32.041983+07:00 hostname kernel: [15.612805] mce: [Firmware Bug]: Ignoring request to disable invalid MCA bank 6.  
2019-10-29T00:33:32.041984+07:00 hostname kernel: [15.612806] mce: [Firmware Bug]: Ignoring request to disable invalid MCA bank 7.  
2019-10-29T00:33:32.041985+07:00 hostname kernel: [15.612806] mce: [Firmware Bug]: Ignoring request to disable invalid MCA bank 8.

How to solve this? 😕

Thanks and regards

Thomson Malau[/QUOTE]  
Hi  
Are you sure it’s not a real hardware problem with the RAM? Have you tested the ram, reseated it?

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<div class="post-metadata">

**Author:** ![Thomson\_Rihad\_Dody](https://avatars.discourse-cdn.com/v4/letter/t/dc4da7/32.png) [@Thomson\_Rihad\_Dody](https://forums.suse.com/u/Thomson_Rihad_Dody)\
**Post date:** [October 30, 2019, 11:38am UTC](https://forums.suse.com/t/mce-detected-memory-error/34502/3 "2019-10-30T11:38:30Z")

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Hi Malcolm,  
Thanks for your reply.

[QUOTE=malcolmlewis;58738]Hi  
Are you sure it’s not a real hardware problem with the RAM?[/QUOTE]

When we saw hardware log, there is no error about memory or other failure.

> [@malcolmlewis;58738](#):
>
> Have you tested the ram, reseated it?

I already tested system with stress-test tools (stress-ng) and running well.

Thomson Malau

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<div class="post-metadata">

**Author:** ![malcolmlewis](https://sea2.discourse-cdn.com/flex022/user_avatar/forums.suse.com/malcolmlewis/32/11375_2.png) [@malcolmlewis](https://forums.suse.com/u/malcolmlewis)\
**Post date:** [October 30, 2019, 2:33pm UTC](https://forums.suse.com/t/mce-detected-memory-error/34502/4 "2019-10-30T14:33:26Z")

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Hi  
Then perhaps you can go in and tweak the trigger?

The configuration files are in /etc/mcelog/ then the man pages… man mcelog.triggers, man mcelog.conf etc
