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SubjectRe: ATA device reset, shoud I be concerned?
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It appears that the problem was caused by a faulty power supply. Thanks 
anyway!

On Tuesday 15 January 2008 11:54:35 Andrew Morton wrote:
> On Mon, 14 Jan 2008 00:19:20 +0200 Georgi Chulkov
<g.chulkov@jacobs-university.de> wrote:
> > Hello,
> >
> > During heavy disk load on my laptop, sometimes the IDE disk will pause
> > for a second and then continue. I get this in my kernel log:
> >
> > [ 9031.028000] ata1.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2
> > frozen
> > [ 9031.028000] ata1.00: cmd c8/00:08:90:ca:ce/00:00:00:00:00/e0 tag 0 cdb
> > 0x0 data 4096 in
> > [ 9031.028000] res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4
> > (timeout)
> > [ 9036.068000] ata1: port is slow to respond, please be patient (Status
> > 0xd0) [ 9041.052000] ata1: device not ready (errno=-16), forcing
> > hardreset [ 9041.052000] ata1: soft resetting port
> > [ 9041.232000] ata1.00: configured for UDMA/100
> > [ 9041.232000] ata1: EH complete
> > [ 9041.248000] sd 0:0:0:0: [sda] 78140160 512-byte hardware sectors
> > (40008 MB) [ 9041.248000] sd 0:0:0:0: [sda] Write Protect is off
> > [ 9041.248000] sd 0:0:0:0: [sda] Mode Sense: 00 3a 00 00
> > [ 9041.248000] sd 0:0:0:0: [sda] Write cache: enabled, read cache:
> > enabled, doesn't support DPO or FUA
> >
> > My question: What is this telling me, and do I need to be concerned?
> > Everything continues to work normally after the message: no I/O errors,
> > no fsck errors, etc.
> >
> > I've seen some similar reports on the mailing list, but they include
> > slightly different messages. I would appreciate any information!
> >
> > uname -a (on Kubuntu Gutsy, CPU is a single-core 32-bit Pentium M):
> >
> > Linux superfly 2.6.22-14-386 #1 Tue Dec 18 07:34:24 UTC 2007 i686
> > GNU/Linux
>
> Has it done this in all kernel versions or did some earler version work OK?
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