Mikael Pettersson wrote:
> On Tue, 24 Jul 2007 17:32:29 +0900, Tejun Heo wrote:
>> Mikael Pettersson wrote:
>>> This machine has a known good Samsung SATA DVD on ICH8 [8086:2820].
>>> With kernel 2.6.23-rc1 I now get the following:
>>>
>>>> ata_piix 0000:00:1f.2: version 2.11
>>>> ata_piix 0000:00:1f.2: MAP [ P0 P2 P1 P3 ]
>>>> ACPI: PCI Interrupt 0000:00:1f.2[B] -> GSI 19 (level, low) -> IRQ 19
>>>> PCI: Setting latency timer of device 0000:00:1f.2 to 64
>>>> scsi2 : ata_piix
>>>> scsi3 : ata_piix
>>>> ata3: SATA max UDMA/133 cmd 0x0001ec00 ctl 0x0001e882 bmdma 0x0001e400 irq 19
>>>> ata4: SATA max UDMA/133 cmd 0x0001e800 ctl 0x0001e482 bmdma 0x0001e408 irq 19
>>>> ata4.00: ATAPI: TSSTcorpCD/DVDW SH-S183A, SB00, max UDMA/33
>>>> ata4.00: applying bridge limits
>>>> ata4.00: configured for UDMA/33
>>>> ata4: EH pending after completion, repeating EH (cnt=4)
>>>> scsi 3:0:0:0: CD-ROM            TSSTcorp CD/DVDW SH-S183A SB00 PQ: 0 ANSI: 5
>>> The "EH pending after completion" is new and did not occur with 2.6.22.
>>> Apart from that message, things seem fine.
>> Hmmm... That means someone requested EH while EH was in progress.
>> Weird.  Can you apply the attached patch and report what the kernel
>> says?  Thanks.
> 
> Here it is. As you can see from the traces, the machine also has a
> pdc20269 controller driven by pata_pdc2027x.

Hmm... I missed one path.  Can you please try the attached patch?  Thanks.

-- 
tejun