ata_piix multithreaded device probes breaks detection of SCSI device

ata_piix multithreaded device probes breaks detection of SCSI device

[Thomas Meyer]

head: d916faace3efc0bf19fe9a615a1ab8fa1a24cd93

Here a sequential probe, that boots fine:
"
[cut]
ata_piix 0000:00:1f.1: version 2.00ac6
ACPI: PCI Interrupt 0000:00:1f.1[A] -> GSI 18 (level, low) -> IRQ 18
PCI: Setting latency timer of device 0000:00:1f.1 to 64
ata1: PATA max UDMA/133 cmd 0x1F0 ctl 0x3F6 bmdma 0x40C0 irq 14
ata2: PATA max UDMA/133 cmd 0x170 ctl 0x376 bmdma 0x40C8 irq 15
scsi0 : ata_piix
ata1.00: ATAPI, max UDMA/66
ata1.00: configured for UDMA/66
scsi1 : ata_piix
ATA: abnormal status 0x7F on port 0x177
scsi 0:0:0:0: CD-ROM            MATSHITA DVD-R   UJ-857   HAE4 PQ: 0 ANSI: 5
ata_piix 0000:00:1f.2: MAP [ P0 P2 XX XX ]
ata_piix 0000:00:1f.2: invalid MAP value 0

PCI: Enabling device 0000:00:1f.2 (0005 -> 0007)
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
ata3: SATA max UDMA/133 cmd 0x40D8 ctl 0x40F6 bmdma 0x4020 irq 19
ata4: SATA max UDMA/133 cmd 0x40D0 ctl 0x40F2 bmdma 0x4028 irq 19
scsi2 : ata_piix
ATA: abnormal status 0x7F on port 0x40DF
ATA: abnormal status 0x7F on port 0x40DF
ata3.01: ATA-7, max UDMA/133, 156301488 sectors: LBA48 NCQ (depth 0/32)
ata3.01: ata3: dev 1 multi count 16
ata3.01: configured for UDMA/133
scsi3 : ata_piix
ATA: abnormal status 0x7F on port 0x40D7
scsi 2:0:1:0: Direct-Access     ATA      ST98823AS        7.01 PQ: 0 ANSI: 5
SCSI device sda: 156301488 512-byte hdwr sectors (80026 MB)
sda: Write Protect is off
sda: Mode Sense: 00 3a 00 00
SCSI device sda: drive cache: write back
SCSI device sda: 156301488 512-byte hdwr sectors (80026 MB)
sda: Write Protect is off
sda: Mode Sense: 00 3a 00 00
SCSI device sda: drive cache: write back
  sda: sda1 sda4 sda5 sda6 sda7 sda8 sda9 sda10
sd 2:0:1:0: Attached scsi disk sda
PNP: No PS/2 controller found. Probing ports directly.
[cut]"

Here what i could catch from a multithreaded pci boot:

http://m3y3r.de/bilder/piix.jpg

with kind regards
Thomas

Re: ata_piix multithreaded device probes breaks detection of SCSI device

[Jeff Garzik]

Thomas Meyer wrote:
> head: d916faace3efc0bf19fe9a615a1ab8fa1a24cd93
> 
> Here a sequential probe, that boots fine:

Known problem, unfortunately, for a -great- many drivers.

Please turn off this option until the authors fix it.

	Jeff

Re: ata_piix multithreaded device probes breaks detection of SCSI device

[Alan]

On Mon, 04 Dec 2006 15:48:04 -0500
Jeff Garzik <jeff@garzik.org> wrote:

> Thomas Meyer wrote:
> > head: d916faace3efc0bf19fe9a615a1ab8fa1a24cd93
> > 
> > Here a sequential probe, that boots fine:
> 
> Known problem, unfortunately, for a -great- many drivers.
> 
> Please turn off this option until the authors fix it.

I've aksed Linus to disable it for IDE (locking not safe) and Watchdog
(link order dependancy) already, really it has so many && !FOO it should
be removed and buried for now.