APU2: "L1 TLB multimatch"

[srcshelton]

Component

Dasharo firmware

Device

PC Engines APU2

Dasharo version

PC Engines release v4.19.0.1

Dasharo Tools Suite version

No response

Test case ID

No response

Brief summary

"Hardware Error" reported by Linux (all versions from 5.0 to 6.10)

How reproducible

Every couple of hours or so

How to reproduce

Boot a linux kernel

Expected behavior

No hardware errors reported

Actual behavior

Frequent error reports - albeit all "corrected"

Screenshots

[301707.243573][T16741] [Hardware Error]: Corrected error, no action required.
[301707.250737][T16741] [Hardware Error]: CPU:0 (16:30:1) MC0_STATUS[Over|CE|-|AddrV|-|-|-]: 0xd400000000010015
[301707.260632][T16741] [Hardware Error]: Error Addr: 0x00007fc39a4d8000
[301707.267218][T16741] [Hardware Error]: MC0 Error: L1 TLB multimatch.
[301707.273701][T16741] [Hardware Error]: cache level: L1, tx: DATA

The Error Addr changes, the remainder of the information is static.

Additional context

This may not be a firmware issue or firmware-correctable, but I thought I'd ask in case anything can be done in the new Dasharo firmware releases?

Solutions you've tried

https://www.mail-archive.com/[email protected]/msg1575932.html

… seems to describe a very similar problem, but was resolved many years ago, and booting with nopti had no effect.