I built a kernel with the proposed patches[*] and ran a reboot/kernel compile test on 4 systems. The tests survived 46 total iterations (~12/system) before I interrupted. Two systems failed with "Synchronous External Abort: synchronous parity or ECC error" errors.
I've reverted the systems back to 4.15.0-70 - the kernel before the cpufeature/errata patches that caused this - to see if these SEA errors are a regression.
I built a kernel with the proposed patches[*] and ran a reboot/kernel compile test on 4 systems. The tests survived 46 total iterations (~12/system) before I interrupted. Two systems failed with "Synchronous External Abort: synchronous parity or ECC error" errors.
I've reverted the systems back to 4.15.0-70 - the kernel before the cpufeature/errata patches that caused this - to see if these SEA errors are a regression.
[*] https:/ /lists. ubuntu. com/archives/ kernel- team/2020- January/ 106909. html