linux-kernel - Re: 4.1-rc6: ATA link is slow to respond, please be patient

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Message-ID: <CAOJe8K2MN7vzn-OCLCqebp+xsVphNoRL_eGzUB_xuX5PfBLx+g@mail.gmail.com>
Date:	Fri, 7 Aug 2015 15:09:08 +0300
From:	Denis Kirjanov <kda@...ux-powerpc.org>
To:	Christian Kujau <lists@...dbynature.de>
Cc:	linuxppc-dev@...abs.org, linux-kernel@...r.kernel.org
Subject: Re: 4.1-rc6: ATA link is slow to respond, please be patient

On 8/7/15, Christian Kujau <lists@...dbynature.de> wrote:
> Hi,
>
> this PowerBook G4 was running 3.16 for a while but now I wanted to upgrade
> to latest mainline. However, during bootup the following happens:
>
> ===============================
> [    2.237102] ata1: PATA max UDMA/100 irq 39
> [    2.401708] ata1.00: ATA-8: SAMSUNG HM061GC, LR100-10, max UDMA/100
> [    2.401764] ata1.00: 117231408 sectors, multi 16: LBA48
> [    2.417633] ata1.00: configured for UDMA/100
> [   44.918102] ata1.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0
> [   44.920452] ata1.00: failed command: READ DMA
> [   44.922725] ata1.00: cmd c8/00:88:64:c2:12/00:00:00:00:00/e0 tag 0 dma
> 69632 in
> [   44.927257] ata1.00: status: { DRDY }
> [   49.971784] ata1.00: qc timeout (cmd 0xec)
> [   49.976529] ata1.00: failed to IDENTIFY (I/O error, err_mask=0x4)
> [   49.978908] ata1.00: revalidation failed (errno=-5)
> [   55.019662] ata1: link is slow to respond, please be patient (ready=0)
> [   60.007677] ata1: device not ready (errno=-16), forcing hardreset
> [   60.012670] ata1: soft resetting link
> [   60.193638] ata1.00: configured for UDMA/100
> [   60.196158] ata1.00: device reported invalid CHS sector 0
> [   60.198610] ata1: EH complete
> ===============================

Interesting, I'll try to reproduce it on my G4.

>
> This happens only once, but systemd thinks there's a hard problem and will
> drop to a recovery shell. I can start sshd and login remotely and then the
> system appears to be running just fine.
>
> This happened in 4.2.0-rc5 so I went back a few versions and found that
> 4.1-rc5 was OK (the error does not show up and the system boots just fine)
> and 4.1-rc6 is not.
>
> Unfortunately a git-bisect between these two versions went completly off
> the charts, I don't know what happened here:
>
> ==================================
> first bad commit:
>
> 0fa372b6c95013af1334b3d5c9b5f03a70ecedab is the first bad commit
> commit 0fa372b6c95013af1334b3d5c9b5f03a70ecedab
> Author: Takashi Iwai <tiwai@...e.de>
> Date:   Wed May 27 16:17:19 2015 +0200
>
>     ALSA: hda - Fix noise on AMD radeon 290x controller
> ==================================
>
> I don't have this driver (or ALSA) even selected. I can reproduce this
> error pretty reliably and I'd like to attempt another git-bisect
> run when I'm more awake. But maybe somebody recognizes this error and
> has a hint where this could come from?
>
> dmesg & .config:  http://nerdbynature.de/bits/v4.1-rc6/
>
> Thanks,
> Christian.
> --
> BOFH excuse #225:
>
> It's those computer people in X {city of world}.  They keep stuffing things
> up.
> _______________________________________________
> Linuxppc-dev mailing list
> Linuxppc-dev@...ts.ozlabs.org
> https://lists.ozlabs.org/listinfo/linuxppc-dev
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