Re: [v7 PATCH 0/2] Add L1 and L2 error detection for A53, A57 and A72

From: Vijay Balakrishna
Date: Tue Apr 15 2025 - 20:05:24 EST


On 4/13/25 13:39, Borislav Petkov wrote:
On Fri, Apr 11, 2025 at 03:08:37PM -0700, Vijay Balakrishna wrote:
Hello,

This is an attempt to revive [v5] series. I have attempted to address comments
and suggestions from Marc Zyngier since [v5]. Additionally, I have extended
support for A72 processors. Testing on a problematic A72 SoC has led to the
detection of Correctable Errors (CEs). I am eager to hear your suggestions and
feedback on this series.

Did you not read Marc's note:

https://lore.kernel.org/all/86a58kl51r.wl-maz@xxxxxxxxxx/

or

https://lore.kernel.org/all/86frigkmtd.wl-maz@xxxxxxxxxx/

?


Hi Borislav,

I did see the second reply above, but not the first before posting v7. I opted to submit v7 after addressing the comments and issues identified in v6 for the benefit of those interested. Sascha's v5 series has helped us in confirming a problematic A72 indeed suffering from CEs.

Our primary focus is on A72. I can re-submit with modifications solely related to A72 and exclude A53 and A57. As Tyler mentioned, we have a significant number of A72-based systems in our fleet, and timely replacements via monitoring CEs will be instrumental in managing them effectively. Please share your thoughts.

Thanks,
Vijay