Gregor Jasny wrote:
> 2007/6/6, Tejun Heo <htejun@gmail.com>:
>> Let's see where we're failing.
> 
> [  186.849280] ata_piix 0000:00:07.1: version 2.11
> [  186.849665] scsi0 : ata_piix
> [  186.850241] scsi1 : ata_piix
> [  186.850596] ata1: PATA max UDMA/33 cmd 0x000101f0 ctl 0x000103f6
> bmdma 0x00010860 irq 14
> [  186.851203] ata2: PATA max UDMA/33 cmd 0x00010170 ctl 0x00010376
> bmdma 0x00010868 irq 15
> [    0.656666] Marking TSC unstable due to: possible TSC halt in C2.
> [    0.659999] Time: acpi_pm clocksource has been installed.
> [    0.659999] Switched to NOHz mode on CPU #0
> [    0.659999] ata1: ata_bus_post_reset: EXIT3
> [    0.709999] ata1.00: ata_hpa_resize 1: sectors = 78242976,
> hpa_sectors = 78242976
> [    0.723333] ata1.00: ATA-7: SAMSUNG MP0402H, UC100-14, max UDMA/100
> [    0.739999] ata1.00: 78242976 sectors, multi 8: LBA48
> [    0.763333] ata1.00: ata_hpa_resize 1: sectors = 78242976,
> hpa_sectors = 78242976
> [    0.776666] ata1.00: configured for UDMA/33
> [    1.376666] Clocksource tsc unstable (delta = -498091579 ns)
> [   10.799998] ata2: ata_bus_post_reset: EXIT1
> [   10.813332] ata2: SRST failed (errno=-16)
> [   20.836664] ata2: ata_bus_post_reset: EXIT1
> [   20.849997] ata2: SRST failed (errno=-16)
> [   55.869994] ata2: ata_bus_post_reset: EXIT1
> [   55.883327] ata2: SRST failed (errno=-16)
> [   60.903327] ata2: ata_bus_post_reset: EXIT1
> [   60.916660] ata2: SRST failed (errno=-16)
> [   60.929993] ata2: reset failed, giving up
> [   60.946660] scsi 0:0:0:0: Direct-Access     ATA      SAMSUNG
> MP0402H  UC10 PQ: 0 ANSI: 5

Ah.. okay.  Now I see what's going on.  Jeff, this is another device
which doesn't set nsect and lbal to 1 after reset.  Gregor, please try
the attached patch.

Thanks.

-- 
tejun