[Bug 328053] Re: No DMA for DVD-burner on ULi 1695 chipset

[323232]

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.

-- 
No DMA for DVD-burner on ULi 1695 chipset
https://bugs.launchpad.net/bugs/328053
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