linux-kernel - Re: SATA exceptions with 2.6.20-rc5

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Message-Id: <200701212113.22965.chunkeey@web.de>
Date:	Sun, 21 Jan 2007 21:13:21 +0100
From:	Chr <chunkeey@....de>
To:	Björn Steinbrink <B.Steinbrink@....de>
Cc:	Robert Hancock <hancockr@...w.ca>, Jeff Garzik <jeff@...zik.org>,
	Alistair John Strachan <s0348365@....ed.ac.uk>,
	linux-kernel@...r.kernel.org, htejun@...il.com,
	jens.axboe@...cle.com, lwalton@...l.com, chunkeey@....de
Subject: Re: SATA exceptions with 2.6.20-rc5

On Sunday, 21. January 2007 19:01, Björn Steinbrink wrote:
> On 2007.01.21 18:34:40 +0100, Chr wrote:
>
> I run those two in parallel:
> while /bin/true; do ls -lR / > /dev/null 2>&1; done
> while /bin/true; do echo 255 > /proc/sys/vm/drop_caches; sleep 1; done
>
> Not sure if running them in parallel is necessary, but I don't want to
> change the test setup ;) Takes between 1 and 40 minutes to trigger it.
> Most of the time it's around 15 minutes now, doing more random stuff in
> addition to that seems to trigger it even easier (like reading mail,
> rebuilding the kernel etc.).
>
> I'm down to 2 commits after 2.6.19 now, only bad kernels, so I tend to
> say that 2.6.19 with 2.6.20-rc5's sata_nv.c will also fail for me, but I
> thought I might finish bisection just to be sure.
>
> > But, this time it looks slightly different:
> > ata3.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2 frozen
> > ata3.00: tag 0 cmd 0xec Emask 0x4 stat 0x40 err 0x0 (timeout)
> >
> > [Rest of the error message + SMART error snipped]
>
> I get the same exception every time, doesn't change for me. And neither
> do I get any SMART errors or something.
>
> Thanks,
> Björn

Ok, you won't believe this... I opened my case and rewired my drives... 
And guess what, my second (aka the "good") HDD is now failing! 
I guess, my mainboard has a (but maybe two, or three :( ) "bad" sata-port(s)!  

But, one small question remains: when I opened my case, I saw that my drivers
are pluged in SATA jack 1 and 2... The BIOS also says they're on 1 and 2.
Now, Linux says they're on port 3 & 4! 



it's always ata3.00!
"ata3.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2 frozen
ata3.00: tag 0 cmd 0xea Emask 0x4 stat 0x40 err 0x0 (timeout)
ata3: soft resetting port
ata3: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
ata3.00: configured for UDMA/133
ata3: EH complete
SCSI device sda: 490234752 512-byte hdwr sectors (251000 MB)
sda: Write Protect is off
sda: Mode Sense: 00 3a 00 00
SCSI device sda: drive cache: write back"


Thanks,
Chr.
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