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Date: Mon, 30 Apr 2007 12:22:21 +0200 From: Tejun Heo <htejun@...il.com> To: William Thompson <wt@...ctro-mechanical.com> CC: linux-kernel@...r.kernel.org Subject: Re: 2.6.20 libata cdrom Hello, William Thompson wrote: > I've been playing with libata on a few machines and I found that this machine > (An old Dell Dimension L866r) gives me this when it loads and does not give me > access to the cdrom. This is the only machine that I've tested that I know > for a fact cannot do DMA on the cdrom. I searched and noticed a similar > problem with 2.6.19-rc versions but I'm not sure if it's the same problem. > > dmesg output: > libata version 2.00 loaded. > ata_piix 0000:00:1f.1: version 2.00ac7 > PCI: Setting latency timer of device 0000:00:1f.1 to 64 > ata1: PATA max UDMA/66 cmd 0x1F0 ctl 0x3F6 bmdma 0xFFA0 irq 14 > ata2: PATA max UDMA/66 cmd 0x170 ctl 0x376 bmdma 0xFFA8 irq 15 > scsi0 : ata_piix > ata1.00: ATA-4, max UDMA/33, 10018890 sectors: LBA > ata1.00: ata1: dev 0 multi count 16 > ata1.00: configured for UDMA/33 > scsi1 : ata_piix > ata2.00: failed to IDENTIFY (I/O error, err_mask=0x1) Hmm... IDENTIFY failed on the second port. How reproducible is the problem? Every time? Does it work with the IDE driver? If so, please post the result of 'hdparm -I /dev/hdX'. -- 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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