19 Oct
2021
19 Oct
'21
11:15 a.m.
On 19/10/2021 12:04, Will Deacon wrote:
On Thu, Oct 14, 2021 at 11:31:12PM +0100, Suzuki K Poulose wrote:
Arm Neoverse-N2 and the Cortex-A710 cores are affected by a CPU erratum where the TRBE will overwrite the trace buffer in FILL mode. The TRBE doesn't stop (as expected in FILL mode) when it reaches the limit and wraps to the base to continue writing upto 3 cache lines. This will overwrite any trace that was written previously.
Add the Neoverse-N2 erratumi(#2139208) and Cortex-A710 erratum (#2119858) to the detection logic.
Weird typo and double space in this sentence.
I have fixed this now.
Thanks Suzuki