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Open Source and information security mailing list archives
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Date: Sun, 13 Apr 2008 11:29:12 +0900 From: Tejun Heo <htejun@...il.com> To: Andrew Morton <akpm@...ux-foundation.org> CC: Chaitanya Huilgol <chaitanya@...aldata.com>, linux-kernel@...r.kernel.org, linux-ide@...r.kernel.org Subject: Re: ATA Bus Error with ICH7R and WDC WD7500AAKS-0 Andrew Morton wrote: > (cc linux-ide) > > On Wed, 02 Apr 2008 18:51:05 +0530 > Chaitanya Huilgol <chaitanya@...aldata.com> wrote: > >> Hi, >> >> I am getting frequent 'ATA bus error' with ICH7R & WD7500AAKS-0. >> I have tried the following combinations of NCQ and Write Cache disabled, >> Write I/O is done with dd: >> dd if=/dev/zero of=/dev/sdc bs=1048576 >> >> (1) With Write Cache is Disabled and NCQ is enabled then the >> errors are seen immediately on starting I/O >> (2) With Write Cache enabled and NCQ enabled the errors are less frequent >> (3) With NCQ disabled using "echo 1 >/sys/block/sdc/device/queue_depth" >> the errors are rare but do occur. >> >> I have tried with different SATA Cables & Sata port combinations to >> rule out cable/bad port issues. >> >> I am wondering if the WDC WD7500AAKS-0 is another candidate for NCQ blacklist? PHY RDY changed is likely to indicate hardware problems. Especially so on ICH ahci's which is one of the best supported and tested. Can you please re-seat cable and move the harddrive to different power connector? -- tejun -- 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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