Bug 476789 - Kernel 6.2.0-36 - L3 Cache Ext. Error Code: 4, L3M Data ECC Error
Summary: Kernel 6.2.0-36 - L3 Cache Ext. Error Code: 4, L3M Data ECC Error
Status: RESOLVED WAITINGFORINFO
Alias: None
Product: neon
Classification: KDE Neon
Component: Packages User Edition (other bugs)
Version First Reported In: unspecified
Platform: Neon Linux
: NOR normal
Target Milestone: ---
Assignee: Neon Bugs
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2023-11-10 11:08 UTC by Franco Pellegrini
Modified: 2025-09-20 09:35 UTC (History)
3 users (show)

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Description Franco Pellegrini 2023-11-10 11:08:48 UTC 
SUMMARY
Latest default kernel starts to spam L3 cache errors since latest KDE neon updates.

STEPS TO REPRODUCE
1. Use the system 

OBSERVED RESULT
the system terminal starts to spam randomly this logs:

nov 09 07:56:54 developer.cevt.ar kernel: [Hardware Error]: Corrected error, no action required.
nov 09 07:56:54 developer.cevt.ar kernel: [Hardware Error]: CPU:0 (19:50:0) MC7_STATUS[Over|CE|MiscV|AddrV|-|-|SyndV|CECC|-|-|-]: 0xdc2040000404010b
nov 09 07:56:54 developer.cevt.ar kernel: [Hardware Error]: Error Addr: 0x00000001002fe620
nov 09 07:56:54 developer.cevt.ar kernel: [Hardware Error]: IPID: 0x000700b020350000, Syndrome: 0x0000dfea1a470607
nov 09 07:56:54 developer.cevt.ar kernel: [Hardware Error]: L3 Cache Ext. Error Code: 4, L3M Data ECC Error.
nov 09 07:56:54 developer.cevt.ar kernel: [Hardware Error]: cache level: L3/GEN, tx: GEN, mem-tx: GEN
nov 09 07:56:54 developer.cevt.ar kernel: [Hardware Error]: Corrected error, no action required.
nov 09 07:56:54 developer.cevt.ar kernel: [Hardware Error]: CPU:0 (19:50:0) MC8_STATUS[Over|CE|MiscV|AddrV|-|-|SyndV|CECC|-|-|-]: 0xdc2040000404010b
nov 09 07:56:54 developer.cevt.ar kernel: [Hardware Error]: Error Addr: 0x0000000375bbac50
nov 09 07:56:54 developer.cevt.ar kernel: [Hardware Error]: IPID: 0x000700b020350100, Syndrome: 0x000071e71a470707
nov 09 07:56:54 developer.cevt.ar kernel: [Hardware Error]: L3 Cache Ext. Error Code: 4, L3M Data ECC Error.
nov 09 07:56:54 developer.cevt.ar kernel: [Hardware Error]: cache level: L3/GEN, tx: GEN, mem-tx: GEN
nov 09 07:56:54 developer.cevt.ar kernel: [Hardware Error]: Corrected error, no action required.
nov 09 07:56:54 developer.cevt.ar kernel: [Hardware Error]: CPU:0 (19:50:0) MC9_STATUS[Over|CE|MiscV|AddrV|-|-|SyndV|CECC|-|-|-]: 0xdc2040000404010b
nov 09 07:56:54 developer.cevt.ar kernel: [Hardware Error]: Error Addr: 0x00000006e4db9aa0
nov 09 07:56:54 developer.cevt.ar kernel: [Hardware Error]: IPID: 0x000700b020350200, Syndrome: 0x000135151a470700
nov 09 07:56:54 developer.cevt.ar kernel: [Hardware Error]: L3 Cache Ext. Error Code: 4, L3M Data ECC Error.
nov 09 07:56:54 developer.cevt.ar kernel: [Hardware Error]: cache level: L3/GEN, tx: GEN, mem-tx: GEN

EXPECTED RESULT
I rolled back to Kernel 6.2.0-35, and there's no log spam there

SOFTWARE/OS VERSIONS
Operating System: KDE neon 5.27
KDE Plasma Version: 5.27.9
KDE Frameworks Version: 5.111.0
Qt Version: 5.15.11
Kernel Version: 6.2.0-35-generic (64-bit)
Graphics Platform: X11
Processors: 12 × AMD Ryzen 5 5600G with Radeon Graphics
Memory: 30.7 GiB of RAM
Graphics Processor: RENOIR
Manufacturer: Gigabyte Technology Co., Ltd.
Product Name: B450M DS3H V2
Comment 1 Carlos De Maine 2025-09-20 09:35:56 UTC 
Thank you for your bug report! 
However this bug report was created/provided previous to 01/01/2023 and also has not received any updates since  before 01/01/2025. 
Unfortunately KDE neon no longer provides updates for anything older than noble 24.04 based edition's.
Please upgrade to KDE neon noble and if you can reproduce the issue after upgrading to an active version, feel free to re-open this bug report.
Thanks for understanding!