Daniel Drake wrote:
Hi Alan,
In 2.6.23 and previous, CD writing works fine on my system. I'm using
ata_piix on:
00:1f.2 IDE interface: Intel Corporation 82801GBM/GHM (ICH7 Family) SATA
IDE Controller (rev 01)
When I'm running CD writing utilities, I sometimes see this message in
the kernel logs:
ata2.00: 66 bytes trailing data
Things do work fine though.
With 2.6.24-rc1, I can't write CDs. Instead of the above message, I get:
ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2 frozen
ata2.00: cmd a0/00:00:00:0a:00/00:00:00:00:00/a0 tag 0 cdb 0x5a data 10 in
res 58/00:02:00:0a:00/00:00:00:00:00/a0 Emask 0x2 (HSM violation)
ata2.00: status: { DRDY DRQ }
ata2: soft resetting link
ata2.00: configured for UDMA/33
ata2: EH complete
and the software acts oddly - for example Brasero tells me that the
blank CD I have inserted has a capacity of 17,179,869,184gb and it
doesn't let me write CDs as it says the medium is not writable.
git bisect lead me to commit 2db78dd302d26d242d3e8e5c4c5024b6c3ea93c2 as
the culprit.
Author: Alan Cox <[email protected]>
Date: Tue Oct 2 13:53:04 2007 -0700
libata_scsi: Fix ATAPI transfer lengths
Some controller variants snoop the ATAPI length value for Packet
transfers to do state machine and FIFO management. Thus we want to
set it properly, even for cases where it is otherwise meaningless.
Any ideas?
hrm
we may need to make that controller-specific, given that the code prior
to 2db78dd302d26d242d3e8e5c4c5024b6c3ea93c2 was working for most...
Jeff
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