Comment 3 for bug 328053

Also tried
1) "options pata_ali atapi_dma=1" in /etc/modprobe.d/options
2) "echo 1 > /sys/module/pata_ali/parameters/atapi_dma" in /etc/rc.local
3) "pata_ali.atapi_dma=1" after defoptions in /boot/grub/menu.lst

Al give similar output like:

[ 0.000000] BIOS-e820: 000000001df70000 - 000000001df7f000 (ACPI data)
[ 0.000000] modified: 000000001df70000 - 000000001df7f000 (ACPI data)
[ 0.000000] #0 [0000000000 - 0000001000] BIOS data page ==> [0000000000 - 0000001000]
[ 0.000000] PERCPU: Allocating 45056 bytes of per cpu data
[ 0.000000] Kernel command line: root=UUID=19cbbabb-8fed-43fc-acd2-5b517c381033 ro rootflags=data=writeback quiet noresume pata_ali.atapi_dma=1
[ 0.004000] Memory: 468508k/490944k available (4127k kernel code, 21788k reserved, 2208k data, 532k init, 0k highmem)
[ 0.004000] .data : 0xc0507dff - 0xc072fe60 (2208 kB)
[ 0.456574] ACPI: EC: GPE = 0x18, I/O: command/status = 0x66, data = 0x62
[ 0.465004] libata version 3.00 loaded.
[ 1.701602] pata_ali 0000:00:0f.0: can't derive routing for PCI INT A
[ 1.701848] scsi0 : pata_ali
[ 1.702058] scsi1 : pata_ali
[ 1.703159] ata1: PATA max UDMA/100 cmd 0x1f0 ctl 0x3f6 bmdma 0x8080 irq 14
[ 1.703163] ata2: PATA max UDMA/100 cmd 0x170 ctl 0x376 bmdma 0x8088 irq 15
[ 1.864536] ata1.00: ATA-6: HTS726060M9AT00, MH4OA68A, max UDMA/100
[ 1.864539] ata1.00: 117210240 sectors, multi 16: LBA48
[ 1.880485] ata1.00: configured for UDMA/100
[ 2.044286] ata2.00: ATAPI: SONY DVD RW DW-D56A, PFS3, max UDMA/33
[ 2.060249] ata2.00: configured for UDMA/33
[ 2.340125] Write protecting the kernel read-only data: 1532k
[ 3.461927] EXT3-fs: mounted filesystem with writeback data mode.
[ 120.818109] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6 frozen
[ 120.818125] ata2.00: cmd a0/01:00:00:00:10/00:00:00:00:00/a0 tag 0 dma 4096 in
[ 120.818132] ata2.00: status: { DRDY }
[ 125.820343] ata2: link is slow to respond, please be patient (ready=0)
[ 130.820133] ata2: device not ready (errno=-16), forcing hardreset
[ 130.820159] ata2: soft resetting link
[ 131.000852] ata2.00: configured for UDMA/33
[ 132.725367] ata2: EH complete
[ 162.817039] ata2.00: limiting speed to UDMA/25:PIO4
[ 162.817047] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6 frozen
[ 162.817060] ata2.00: cmd a0/01:00:00:00:10/00:00:00:00:00/a0 tag 0 dma 4096 in
[ 162.817066] ata2.00: status: { DRDY }
[ 167.840298] ata2: link is slow to respond, please be patient (ready=0)
[ 172.848234] ata2: device not ready (errno=-16), forcing hardreset
[ 172.848311] ata2: soft resetting link
[ 173.014186] ata2.00: configured for UDMA/25
[ 174.362277] ata2: EH complete
[ 204.817606] ata2.00: limiting speed to PIO4
[ 204.817664] ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6 frozen
[ 204.817768] ata2.00: cmd a0/01:00:00:00:10/00:00:00:00:00/a0 tag 0 dma 4096 in
[ 204.817825] ata2.00: status: { DRDY }
[ 209.856278] ata2: link is slow to respond, please be patient (ready=0)
[ 214.864261] ata2: device not ready (errno=-16), forcing hardreset
[ 214.864336] ata2: soft resetting link
[ 215.033958] ata2.00: configured for PIO4
[ 216.374834] ata2: EH complete
[ 303.217362] EXT3-fs: mounted filesystem with writeback data mode.