Comment 35 for bug 794642

Ming, I have no idea how to use that.

As for now, I can confirm that Ubuntu 10.04.3 with kernel 2.6.32-33 is working properly with HDD and DVD.

Interesting parts from dmesg:

[ 0.521986] libata version 3.00 loaded.
[ 0.595837] ata_piix 0000:00:1f.2: version 2.13
[ 0.595848] ata_piix 0000:00:1f.2: PCI INT C -> GSI 18 (level, low) -> IRQ 18
[ 0.595853] ata_piix 0000:00:1f.2: MAP [ P0 P2 P1 P3 ]
[ 0.748022] ata_piix 0000:00:1f.2: setting latency timer to 64
[ 0.748083] scsi0 : ata_piix
[ 0.748150] scsi1 : ata_piix
[ 0.748177] ata1: SATA max UDMA/133 cmd 0x4110 ctl 0x4100 bmdma 0x40d0 irq 18
[ 0.748182] ata2: SATA max UDMA/133 cmd 0x40f0 ctl 0x40e0 bmdma 0x40d8 irq 18
[ 0.748207] ata_piix 0000:00:1f.5: PCI INT C -> GSI 18 (level, low) -> IRQ 18
[ 0.748212] ata_piix 0000:00:1f.5: MAP [ P0 -- P1 -- ]
[ 0.903967] ata_piix 0000:00:1f.5: SCR access via SIDPR is available but doesn't work
[ 0.903973] ata_piix 0000:00:1f.5: setting latency timer to 64
[ 0.903998] scsi2 : ata_piix
[ 0.904033] scsi3 : ata_piix
[ 0.904054] ata3: SATA max UDMA/133 cmd 0x40b0 ctl 0x40a0 bmdma 0x4070 irq 18
[ 0.904055] ata4: SATA max UDMA/133 cmd 0x4090 ctl 0x4080 bmdma 0x4078 irq 18
[ 2.096056] ata1.01: failed to resume link (SControl 0)
[ 2.100054] ata2.01: failed to resume link (SControl 0)
[ 2.252082] ata1.00: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
[ 2.252094] ata1.01: SATA link down (SStatus 0 SControl 0)
[ 2.256063] ata2.00: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
[ 2.256077] ata2.01: SATA link down (SStatus 0 SControl 0)
[ 2.256088] ata2.01: link offline, clearing class 3 to NONE
[ 2.260496] ata1.00: ATA-8: ST3250312AS, JC47, max UDMA/133
[ 2.260500] ata1.00: 488397168 sectors, multi 16: LBA48 NCQ (depth 0/32)
[ 2.276486] ata1.00: configured for UDMA/133
[ 2.276576] scsi 0:0:0:0: Direct-Access ATA ST3250312AS JC47 PQ: 0 ANSI: 5
[ 2.280703] ata2.00: ATAPI: TSSTcorp DVD+/-RW TS-L633J, D500, max UDMA/100
[ 2.312705] ata2.00: configured for UDMA/100
[ 2.380761] Write protecting the kernel read-only data: 1848k
[ 2.647209] EXT4-fs (sda2): mounted filesystem with ordered data mode