After upgrading from 2.6.26.5 to 2.6.27.4, my DVD drive started having problems during
boot time. Here is the relevant part from dmesg:
ata2: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
ata2.00: ATAPI: HL-DT-ST DVD+/-RW GSA-T11N, A103, max UDMA/33
ata2.00: applying bridge limits
ata2.00: Drive reports diagnostics failure. This may indicate a drive
ata2.00: fault or invalid emulation. Contact drive vendor for information.
ata2.00: configured for UDMA/33
scsi 0:0:0:0: Direct-Access ATA ST3250820AS 3.AD PQ: 0 ANSI: 5
ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6 frozen
ata2.00: cmd a0/00:00:00:24:00/00:00:00:00:00/a0 tag 0 pio 36 in
cdb 12 00 00 00 24 00 00 00 00 00 00 00 00 00 00 00
res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
ata2.00: status: { DRDY }
ata2: hard resetting link
[continue ad inifitum....]
The drive is reported as "HL-DT-ST DVD+/-RW GSA-T11N, A103", connected to an nVidia MCP51
controller. Googling around, I found similar complaints in the past for other nVidia
controllers using the sata_nv driver (though I couldn't find anything about the MCP51). I
tried compiling the version of sata_nv that comes with 2.6.26.5, but that did not solve my
problems.
I can provide further details if necessary.
--Elad
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