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Date: Tue, 8 Jul 2008 08:59:54 +0200 (CEST) From: Gerhard Wiesinger <lists@...singer.com> To: Justin Piszcz <jpiszcz@...idpixels.com> cc: linux-kernel@...r.kernel.org, linux-raid@...r.kernel.org, linux-ide@...r.kernel.org Subject: Re: Lots of con-current I/O = resets SATA link? (2.6.25.10) Hello! BTW: The error in syslog also accoured when Reallocated_Sector_Ct didn't go up. Ciao, Gerhard -- http://www.wiesinger.com/ On Tue, 8 Jul 2008, Gerhard Wiesinger wrote: > On Mon, 7 Jul 2008, Justin Piszcz wrote: > >> Hi Gerhard, >> >> It /could/ be the port itself if you have changed the cable and disk.. >> > > Yes, but it is very unlikely. I have written TB of data there without any > problems. Anyway this is my 3rd exchanged SAMSUNG disk ... > > >> Have you tried loading the disk with dd and seeing if you can reproduce the >> problem? You are getting the same error I get generally, I can recommend >> turning OFF NCQ first and see if the problem goes away. >> >> # Define DISKS. >> cd /sys/block >> DISKS=$(/bin/ls -1d sd[a-z]) >> >> # Disable NCQ on all disks. >> echo "Disabling NCQ on all disks..." >> for i in $DISKS >> do >> echo "Disabling NCQ on $i" >> echo 1 > /sys/block/"$i"/device/queue_depth >> done >> > > I tried to disable NCQ on all disks and tried to rebuild the raid, but it > still failed to rebuild with the same error message. > > I also tried the nolapic kernel parameter without success. > > /dev/sda: 5 Reallocated_Sector_Ct 0x0033 100 100 010 Pre-fail > Always - 0 > /dev/sdb: 5 Reallocated_Sector_Ct 0x0033 100 100 010 Pre-fail > Always - 0 > /dev/sdc: 5 Reallocated_Sector_Ct 0x0033 091 091 010 Pre-fail > Always - 413 > /dev/sdd: 5 Reallocated_Sector_Ct 0x0033 100 100 010 Pre-fail > Always - 0 > /dev/sde: 5 Reallocated_Sector_Ct 0x0033 100 100 010 Pre-fail > Always - 0 > /dev/sdf: 5 Reallocated_Sector_Ct 0x0033 100 100 010 Pre-fail > Always - 0 > > The only thing is that the Reallocated_Sector_Ct is still >0 on /dev/sdc > (keep in mind this is my 3rd new Samsung disk on /dev/sdc and I had up to > 3000 Reallocated_Sector_Ct on previous disks in < 1 day !!!). > > Should I replace the disk a fourth time? > > When you search in google you find a lot of threads with the timeout problem. > Might this be a software issue? > -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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