Date:	Sat, 08 Aug 2015 14:34:31 -0700
From:	Christian Kujau <lists@...dbynature.de>
To:	Denis Kirjanov <kda@...ux-powerpc.org>
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 August 8, 2015 1:57:05 AM PDT, Denis Kirjanov <kda@...ux-powerpc.org> wrote:
>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
>> ===============================
>
>Just tried 4.2.0-rc5+ and haven't hit the issue.
>
>[   17.180034] pata-pci-macio 0002:20:0d.0: enabling device (0000 ->
>0002)
>[   17.185862] adb: starting probe task...
>[   17.196011] pata-pci-macio 0002:20:0d.0: Activating pata-macio
>chipset UniNorth ATA-6, Apple bus ID 3
>[   17.202312] scsi host0: pata_macio
>[   17.203698] ata1: PATA max UDMA/100 irq 39
>[   17.219397] adb devices: [2]: 2 c4 [7]: 7 1f
>[   17.225400] ADB keyboard at 2, handler 1
>[   17.225560] Detected ADB keyboard, type ISO, swapping keys.
>[   17.226642] input: ADB keyboard as /devices/virtual/input/input0
>[   17.227590] input: ADB Powerbook buttons as
>/devices/virtual/input/input1
>[   17.227795] adb: finished probe task...
>[   17.368537] ata1.00: ATA-6: TOSHIBA MK8026GAX, PA005B, max UDMA/100
>[   17.368717] ata1.00: 156301488 sectors, multi 16: LBA48
>[   17.376346] ata1.00: configured for UDMA/100
>[   17.377544] scsi 0:0:0:0: Direct-Access     ATA      TOSHIBA
>MK8026GA 5B   PQ: 0 ANSI: 5
>[   17.386989] sd 0:0:0:0: [sda] 156301488 512-byte logical blocks:
>(80.0 GB/74.5 GiB)
>[   17.393144] sd 0:0:0:0: [sda] Write Protect is off
>[   17.397579] sd 0:0:0:0: [sda] Mode Sense: 00 3a 00 00
>[   17.398215] sd 0:0:0:0: Attached scsi generic sg0 type 0
>[   17.404124] sd 0:0:0:0: [sda] Write cache: enabled, read cache:
>enabled, doesn't support DPO or FUA
>[   17.661225]  sda: [mac] sda1 sda2 sda3 sda4
>[   17.672937] sd 0:0:0:0: [sda] Attached SCSI disk
>[   18.223985] pata-macio 0.00020000:ata-3: Activating pata-macio
>chipset KeyLargo ATA-3, Apple bus ID 0
>[   18.233397] scsi host1: pata_macio
>[   18.239172] ata2: PATA max MWDMA2 irq 24
>
>
>>
>> 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

Can you send me your .config or did you use my .config, verbatim?

I'll try another git-bisect later today.

Thanks,
Christian.
-- 
make bzImage, not war
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