Date: Mon, 16 Aug 2010 21:20:02 GMT From: Alexander Motin <mav@FreeBSD.org> To: freebsd-amd64@FreeBSD.org Subject: Re: amd64/149713: Kernel crashes on HD timeout Message-ID: <201008162120.o7GLK29o062372@freefall.freebsd.org>
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The following reply was made to PR amd64/149713; it has been noted by GNATS. From: Alexander Motin <mav@FreeBSD.org> To: bug-followup@FreeBSD.org, paul@swarmtv.nl Cc: Subject: Re: amd64/149713: Kernel crashes on HD timeout Date: Tue, 17 Aug 2010 00:11:00 +0300 I think there is two reasons: 1. Too low request timeout value triggers error too early. Increasing timeout should make it less frequent. It was already done in 7-STABLE branch and above. 2. After timeout triggered, panic probably caused by weak locking in ata(4). You may try to upgrade your system, hoping situation was improved. But I would recommend you to upgrade to 8.1 and build kernel with ATA_CAM option, replacing old ata(4) infrastructure with new and probably more reliable one. -- Alexander Motin
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