From: Mark Lord <liml@rtr.ca>
To: Hugo Mills <hugo-lkml@carfax.org.uk>,
linux-kernel@vger.kernel.org, linux-ide@vger.kernel.org,
Tejun Heo <htejun@gmail.com>
Subject: Re: Spurious completions during NCQ
Date: Sat, 16 Feb 2008 09:08:19 -0500 [thread overview]
Message-ID: <47B6EE53.1070101@rtr.ca> (raw)
In-Reply-To: <20080215134658.GB27745@vlad.carfax.org.uk>
Hugo Mills wrote:
> I'm getting these on my Dell Latitude D830:
>
> Feb 15 13:06:00 willow kernel: ata1.00: exception Emask 0x2 SAct 0x4 SErr 0x0 action 0x2 frozen
> Feb 15 13:06:00 willow kernel: ata1.00: spurious completions during NCQ issue=0x0 SAct=0x4 FIS=004040a1:00000002
> Feb 15 13:06:00 willow kernel: ata1.00: cmd 61/10:10:26:fb:c4/00:00:02:00:00/40 tag 2 cdb 0x0 data 8192 out
> Feb 15 13:06:00 willow kernel: res 40/00:10:26:fb:c4/00:00:02:00:00/40 Emask 0x2 (HSM violation)
> Feb 15 13:06:00 willow kernel: ata1: soft resetting port
> Feb 15 13:06:00 willow kernel: ata1: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
> Feb 15 13:06:00 willow kernel: ata1.00: configured for UDMA/133
> Feb 15 13:06:00 willow kernel: ata1: EH complete
> Feb 15 13:06:00 willow kernel: sd 0:0:0:0: [sda] 312581808 512-byte hardware sectors (160042 MB)
> Feb 15 13:06:00 willow kernel: sd 0:0:0:0: [sda] Write Protect is off
> Feb 15 13:06:00 willow kernel: sd 0:0:0:0: [sda] Mode Sense: 00 3a 00 00
> Feb 15 13:06:00 willow kernel: sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
>
> In some cases, there are several cmd/res lines listed. It's
> happening about once an hour or so (not correlated with any other
> event that I can see). It doesn't seem to be affecting operation of
> the machine, but it's making me nervous.
>
> Can anyone set my mind at rest? (Or suggest a fix?)
..
Tejun, have the spurious completion fixes been backported
to 2.6.23 / 2.6.22 yet ? Those kernels will be in common use
for some time to come, and this fix is more or less essential.
???
next prev parent reply other threads:[~2008-02-16 14:08 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-02-15 13:46 Spurious completions during NCQ Hugo Mills
2008-02-15 15:00 ` Calvin Walton
2008-02-15 15:04 ` Hugo Mills
2008-02-15 15:37 ` Michael Tokarev
2008-02-16 14:08 ` Mark Lord [this message]
2008-03-06 5:56 ` Tejun Heo
2008-03-06 6:05 ` Tejun Heo
-- strict thread matches above, loose matches on Subject: below --
2007-10-13 13:12 Marco Lamberto
2007-09-07 17:57 Sumanth J.V
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