Date: Fri, 7 Nov 2003 19:33:41 +0100 (CET) From: Soren Schmidt <sos@spider.deepcore.dk> To: Kris Kennaway <kris@obsecurity.org> Cc: sos@FreeBSD.ORG Subject: Re: Too many uncorrectable read errors with atang Message-ID: <200311071833.hA7IXfgj010546@spider.deepcore.dk> In-Reply-To: <20031107181007.GA19911@rot13.obsecurity.org>
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It seems Kris Kennaway wrote: -- Start of PGP signed section. > Since upgrading the bento package machines to -current I am getting > a lot of the following errors: > > ad0: FAILURE - READ_DMA status=51<READY,DSC,ERROR> error=40<UNCORRECTABLE> That does look like a valid error condition from the drive... > 1) All my drives have performed mass suicide at once You know, with deathstar's you cant really rule that out :) > 2) ATAng is detecting errors that the ATAog did not That is true, the error detection is better in ATAng. > 3) ATAng is not trying as hard as ATAog to recover from the errors > from the crappy drives Neither ATAog nor ATAnr retried uncorrectable errors... > 4) ATAng has a bug on this hardware. That we cant rule out, and it probably likely.. > Furthermore, I'd like to know why the panic occurred above. Is this on a brand new -current ? lots of things that could cause this has been fixed... -Søren
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