Bug#1035587: linux: broken AHCI controller on MIPS Loongson 3 (regression from 5.10.162-1)

[YunQiang Su <wzssyqa@gmail.com>]

Aurelien Jarno <aurel32@debian.org> 于2023年5月6日周六 04:30写道：
>
> Source: linux
> Version: 5.10.178-3
> Severity: important
> X-Debbugs-Cc: dsa@debian.org, debian-mips@lists.debian.org, syq@debian.org
>
> Following the point release, the buildd mipsel-osuosl-03.d.o does not
> boot anymore, with errors in the AHCI controller:
>
> [   35.912147] ata4.00: exception Emask 0x0 SAct 0x20000000 SErr 0x0 action 0x6 frozen
> [   35.919769] ata4.00: failed command: WRITE FPDMA QUEUED
> [   35.924968] ata4.00: cmd 61/20:e8:00:f0:e1/00:00:00:00:00/40 tag 29 ncq dma 16384 out
> [   35.924968]          res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
> [   35.940097] ata4.00: status: { DRDY }
> [   35.943743] ata4: hard resetting link
>
> While that initially looks like a hardware issue, it appears that
> reverting the kernel to 5.10.162-1 (from 5.10.178-3) fixes the issue.
> Strangely mipsel.osuosl-05.d.o, which seems to be similar hardware (CPU,
> motherboard and SATA drive), does not exhibit the same issue.
>

Maybe the different firmwares are used for them...
CCed Huacai and Jiaxun.

> You'll find attached the output of /proc/cpuinfo, lspci and the full
> boot log.



-- 
YunQiang Su