Date: Fri, 1 Jul 2005 13:00:42 -0400 From: "dave" <dmehler26@woh.rr.com> To: <freebsd-questions@freebsd.org> Subject: DMA read/write errors while copying data, 5.4 Message-ID: <002b01c57e5e$6a86c550$0200a8c0@satellite>
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Hello, I was following procedure2 of the gmirror howto located at: http://people.freebsd.org/~rse/mirror/ and had got to the part where i was copying the data from the first to the second disk. I did: dump -L -0 -f- /usr | (cd /mnt/usr; restore -r -v -f-) which went for a while then hung. Checking the console i saw: ad1: WARNING - WRITE_DMA interrupt was seen but timeout fired LBA=78165359 ad0: WARNING - READ_DMA interrupt was seen but timeout fired LBA=7567655 ad0: WARNING - READ_DMA interrupt was seen but timeout fired LBA=7567659 ad1: WARNING - WRITE_DMA interrupt was seen but timeout fired LBA=78165359 ad0: WARNING - READ_DMA interrupt was seen but timeout fired LBA=7567655 ad0: WARNING - READ_DMA interrupt was seen but timeout fired LBA=7567659 ad1: WARNING - WRITE_DMA interrupt was seen but timeout fired LBA=78165359 ad0: WARNING - READ_DMA interrupt was seen but timeout fired LBA=7567655 ad0: WARNING - READ_DMA interrupt was seen but timeout fired LBA=7567659 etc. I've done this on another box, a test machine and did not experience this issue. Might one or more of these drives be going bad? Thanks. Dave.
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