Bug#1035587: linux: broken AHCI controller on MIPS Loongson 3 (regression from 5.10.162-1)
Hi,
On 2023-05-07 19:22, Jiaxun Yang wrote:
>
>
> > 2023年5月6日 01:58，YunQiang Su <wzssyqa@gmail.com> 写道：
> >
> > 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.
>
> I’m unable to reproduce on my side. Perhaps different hardware.
> Is it possible to bisect Kernel on that machine to see of reverting that two commits do help?
I have bisected the issue and I confirm the intuition from Cyril. The
first bad commit is 654ae539254d10042869fdc77ad04c09e7eff1fd. Reverting
both commits (they are linked) indeed fixes the issue.
Aurelien
--
Aurelien Jarno GPG: 4096R/1DDD8C9B
aurelien@aurel32.net http://aurel32.net
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