linux-kernel - Re: 2.6.29 regression: ATA bus errors on resume

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Message-ID: <4A17C39E.2030302@gmail.com>
Date:	Sat, 23 May 2009 11:36:30 +0200
From:	Niel Lambrechts <niel.lambrechts@...il.com>
To:	Tejun Heo <tj@...nel.org>,
	"linux.kernel" <linux-kernel@...r.kernel.org>
Subject: Re: 2.6.29 regression: ATA bus errors on resume

On 05/23/2009 11:20 AM, Niel Lambrechts wrote:
> On 04/09/2009 08:18 PM, Tejun Heo wrote:
>> Hmm... none of the debugging messages got triggered, so there should
>> be no noticeable timing change. It seems like you're being lucky for
>> the time being. Can you please keep testing and report back?
>
> Hi Tejun,
>
> Just to keep you up informed - this issue is still happening, I've been
> testing the latest 2.6.30-git kernels the last couple of weeks and just
> checked my logs after having an unexpected fsck upon system boot - the
> freeze seems to trigger very infrequently though, since I use s2disk at
> least twice a day and the error only seems to have happened twice since
> May 2.

I notice that if I hibernate with a CD in the drive and then remove it as soon 
as I boot, I get a hard reset on the ata1 bus.

I'm not sure if this maybe plays a role in triggering the problem at times, 
perhaps it is entirely expected - but vim highlights it in red and to a "normal" 
user that is bad. :)

Maybe after applying your patch I should play around with this?


/var/log/warn:
May 23 11:28:44 linux-7vph kernel: sd 0:0:0:0: [sda] Starting disk
May 23 11:28:44 linux-7vph kernel: ata2: SATA link up 1.5 Gbps (SStatus 113 
SControl 300)
May 23 11:28:44 linux-7vph kernel: ata1: SATA link up 1.5 Gbps (SStatus 113 
SControl 300)
May 23 11:28:44 linux-7vph kernel: ata1.00: ACPI cmd ef/02:00:00:00:00:a0 succeeded
May 23 11:28:44 linux-7vph kernel: ata1.00: ACPI cmd f5/00:00:00:00:00:a0 
filtered out
May 23 11:28:44 linux-7vph kernel: ata1.00: ACPI cmd ef/5f:00:00:00:00:a0 succeeded
May 23 11:28:44 linux-7vph kernel: ata1.00: ACPI cmd ef/10:03:00:00:00:a0 
filtered out
May 23 11:28:44 linux-7vph kernel: ata1.00: ACPI cmd ef/02:00:00:00:00:a0 succeeded
May 23 11:28:44 linux-7vph kernel: ata1.00: ACPI cmd f5/00:00:00:00:00:a0 
filtered out
May 23 11:28:44 linux-7vph kernel: ata1.00: ACPI cmd ef/5f:00:00:00:00:a0 succeeded
May 23 11:28:44 linux-7vph kernel: ata1.00: ACPI cmd ef/10:03:00:00:00:a0 
filtered out
May 23 11:28:44 linux-7vph kernel: ata1.00: configured for UDMA/133
May 23 11:28:44 linux-7vph kernel: ata1: exception Emask 0x10 SAct 0x0 SErr 0x0 
action 0x9 t4
May 23 11:28:44 linux-7vph kernel: ata1: irq_stat 0x00400040, connection status 
changed
May 23 11:28:44 linux-7vph kernel: ata1.00: configured for UDMA/133
May 23 11:28:44 linux-7vph kernel: ata1: EH complete
May 23 11:28:44 linux-7vph kernel: ata2.00: ACPI cmd e3/00:1f:00:00:00:a0 succeeded
May 23 11:28:44 linux-7vph kernel: ata2.00: ACPI cmd e3/00:02:00:00:00:a0 succeeded
May 23 11:28:44 linux-7vph kernel: ata2.00: ACPI cmd e3/00:1f:00:00:00:a0 succeeded
May 23 11:28:44 linux-7vph kernel: ata2.00: ACPI cmd e3/00:02:00:00:00:a0 succeeded
May 23 11:28:44 linux-7vph kernel: ata2.00: configured for UDMA/133
May 23 11:28:44 linux-7vph kernel: pci 0000:00:02.0: restoring config space at 
offset 0x1 (was 0x900407, writing 0x900403)
May 23 11:28:44 linux-7vph kernel: pci 0000:00:02.0: setting latency timer to 64
May 23 11:28:44 linux-7vph kernel: Restarting tasks ... done.
May 23 11:28:44 linux-7vph kernel: ata2: exception Emask 0x10 SAct 0x0 SErr 0x0 
action 0x9 t4
May 23 11:28:44 linux-7vph kernel: ata2: irq_stat 0x40000001
May 23 11:28:44 linux-7vph kernel: ata2.00: configured for UDMA/133
May 23 11:28:44 linux-7vph kernel: ata2: EH complete
May 23 11:28:44 linux-7vph kernel: ata1.00: exception Emask 0x10 SAct 0x1 SErr 
0x10000 action 0xe frozen
May 23 11:28:44 linux-7vph kernel: ata1.00: irq_stat 0x00400008, PHY RDY changed
May 23 11:28:44 linux-7vph kernel: ata1: SError: { PHYRdyChg }
May 23 11:28:44 linux-7vph kernel: ata1.00: cmd 
61/08:00:37:5a:f4/00:00:09:00:00/40 tag 0 ncq 4096 out
May 23 11:28:44 linux-7vph kernel:          res 
50/00:08:37:5a:f4/00:00:09:00:00/40 Emask 0x10 (ATA bus error)
May 23 11:28:44 linux-7vph kernel: ata1.00: status: { DRDY }
May 23 11:28:44 linux-7vph kernel: ata1: hard resetting link
May 23 11:28:44 linux-7vph kernel: ata1: SATA link up 1.5 Gbps (SStatus 113 
SControl 300)
May 23 11:28:44 linux-7vph kernel: ata1.00: ACPI cmd ef/02:00:00:00:00:a0 succeeded
May 23 11:28:44 linux-7vph kernel: ata1.00: ACPI cmd f5/00:00:00:00:00:a0 
filtered out
May 23 11:28:44 linux-7vph kernel: ata1.00: ACPI cmd ef/5f:00:00:00:00:a0 succeeded
May 23 11:28:44 linux-7vph kernel: ata1.00: ACPI cmd ef/10:03:00:00:00:a0 
filtered out
May 23 11:28:44 linux-7vph kernel: ata1.00: ACPI cmd ef/02:00:00:00:00:a0 succeeded
May 23 11:28:44 linux-7vph kernel: ata1.00: ACPI cmd f5/00:00:00:00:00:a0 
filtered out
May 23 11:28:44 linux-7vph kernel: ata1.00: ACPI cmd ef/5f:00:00:00:00:a0 succeeded
May 23 11:28:44 linux-7vph kernel: ata1.00: ACPI cmd ef/10:03:00:00:00:a0 
filtered out
May 23 11:28:44 linux-7vph kernel: ata1.00: configured for UDMA/133
May 23 11:28:44 linux-7vph kernel: ata1.00: configured for UDMA/133
May 23 11:28:44 linux-7vph kernel: ata1: EH complete

Regards,
Niel
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