Re: [PATCH ath-next] wifi: ath10k: snoc: use memcpy_fromio() for MSA ramdump
Jeff Johnson <[email protected]> Sat, 01 Aug 2026 08:55:35 -0700
| Newsgroups | org.infradead.lists.ath10k,org.kernel.vger.linux-kernel,org.kernel.vger.linux-wireless |
|---|---|
| Message-ID | <[email protected]> |
On Mon, 27 Jul 2026 12:56:29 +0530, Linghui Wu wrote:
> On WCN3990/SNOC the MSA region is mapped with devm_memremap(MEMREMAP_WT).
> On arm64 such a mapping is not Normal-cacheable, so unaligned accesses to
> it are not permitted. ath10k_msa_dump_memory() copies the region with a
> plain memcpy(), whose optimized __pi_memcpy_generic implementation issues
> wide/unaligned loads. This triggers an alignment fault (FSC=0x21) Oops in
> ath10k_snoc_fw_crashed_dump() while collecting the devcoredump:
>
> [...]
Applied, thanks!
[1/1] wifi: ath10k: snoc: use memcpy_fromio() for MSA ramdump
commit: 4f25071afe9218aaae1c63fbf75e229aa6405319
Best regards,
--
Jeff Johnson <[email protected]>