Ubuntu
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  1. Bug #500069
  2. Comment #343

Comment 343 for bug 500069

Revision history for this message
In , trent.bugzilla (trent.bugzilla-linux-kernel-bugs) wrote :

I have consistently had this problem with any kernel I have tried, above 2.6.17, so I have stuck with that up until now.

There are some supposed resolutions to the problem at http://linux-ata.org/faq.html, but none of them work for me, and I don't have the mentioned BIOS setting in my BIOS.

lspci reports...
00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev e1)
00:1f.0 ISA bridge: Intel Corporation 82801GBM (ICH7-M) LPC Interface Bridge (rev 01)
00:1f.2 IDE interface: Intel Corporation 82801GBM/GHM (ICH7 Family) SATA IDE Controller (rev 01)

I do not appear to have the problem on my Macbook 2,1, although the disk performance is like 21M/s, which is lousy. But, what I'm seeing on my one machine is 1M-3M/s.

I also tried passing "pci=routeirq" and "acpi=off" (grasping at straws), but that did not change anything. I did however notice that my HD is /dev/sda in 2.6.17, and /dev/hda in 2.6.25 and 2.6.27.

On 2.6.17, dmesg tells me...
ata_piix 0000:00:1f.2: version 1.05
ata_piix 0000:00:1f.2: MAP [ P0 P2 IDE IDE ]
ACPI: PCI Interrupt 0000:00:1f.2[B] -> GSI 17 (level, low) -> IRQ 18
ata: 0x170 IDE port busy
PCI: Setting latency timer of device 0000:00:1f.2 to 64
ata1: SATA max UDMA/133 cmd 0x1F0 ctl 0x3F6 bmdma 0xBFA0 irq 14
ata1: dev 0 cfg 49:2f00 82:346b 83:7d09 84:6123 85:3469 86:bc09 87:6123 88:207f
ata1: dev 0 ATA-8, max UDMA/133, 625142448 sectors: LBA48
ata1: dev 0 configured for UDMA/133
scsi2 : ata_piix
  Vendor: ATA Model: ST9320421ASG Rev: SD13
  Type: Direct-Access ANSI SCSI revision: 05
SCSI device sda: 625142448 512-byte hdwr sectors (320073 MB)
sda: Write Protect is off
sda: Mode Sense: 00 3a 00 00
SCSI device sda: drive cache: write back
SCSI device sda: 625142448 512-byte hdwr sectors (320073 MB)
sda: Write Protect is off
sda: Mode Sense: 00 3a 00 00
SCSI device sda: drive cache: write back
 sda: sda1 sda2 sda3
sd 2:0:0:0: Attached scsi disk sda
sd 2:0:0:0: Attached scsi generic sg0 type 0

But on 2.6.27, I get nothing of the sort. Nothing to do with SATA or anything. I did notice that with 2.6.27, libata was enabled, while with 2.6.17 it didn't appear to be an option even. Ever since that libata, nothing seems to work, and my computer is relatively new. I have a Dell D820 core 2 duo.