Date: Wed, 10 Aug 2005 00:36:30 +0200 From: "O. Hartmann" <ohartman@mail.uni-mainz.de> To: Chuck Swiger <cswiger@mac.com> Cc: freebsd-stable@freebsd.org, freebsd-questions@freebsd.org Subject: Re: ad10: WARNING - READ_DMA UDMA ICRC error (retrying request) LBA=11441599 Message-ID: <42F92FEE.8060305@mail.uni-mainz.de> In-Reply-To: <42F9009E.3030601@mac.com> References: <42F7F7E8.1020507@mail.uni-mainz.de> <42F9009E.3030601@mac.com>
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Chuck Swiger wrote: > O. Hartmann wrote: > [ ... ] > >> One of my SATA disks, the SAMSUNG SP2004C seems to show errors >> during operation (and also showd under 5.4-RELEASE-p3). >> Sometimes I get this error: >> ad10: WARNING - READ_DMA UDMA ICRC error (retrying request) LBA=11441599 >> while the machine still keeps working. >> Other days the box crashes completely. >> >> Is this a operating system bug or is this message an evidence of >> defective hardware? > > You can also run a "dd if=/dev/ad10 of=/dev/null bs=8192" to do a full > read test under FreeBSD, and see how many CRC errors show up. > I did so and I ran into a crash of the system ... I changed the cabling, did it again and until now nothing happend ... hope it was only a cabling issue. The first time I use ATA/SATA and now these experiences ... When is SCSI back for desktops?
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