From: "David Shirley" <tephra@gmail.com>
To: linux-kernel@vger.kernel.org
Subject: SATA DMA problem (sata_uli)
Date: Wed, 13 Dec 2006 16:02:21 +1100 [thread overview]
Message-ID: <f0e65c090612122102o327ac693u2f24a74a9ba973ef@mail.gmail.com> (raw)
Hi Chaps,
Basically I detected this problem because I added another drive to my
PCI SATA card, and now the system is running dog slow.
I tracked it down to one of the drives being forced into PIO4 mode
rather than UDMA mode; dmesg bits:
sata_nv 0000:00:0b.0: version 2.0
ACPI: PCI Interrupt Link [LSID] enabled at IRQ 11
PCI: setting IRQ 11 as level-triggered
ACPI: PCI Interrupt 0000:00:0b.0[A] -> Link [LSID] -> GSI 11 (level,
low) -> IRQ 11
PCI: Setting latency timer of device 0000:00:0b.0 to 64
ata1: SATA max UDMA/133 cmd 0x9F0 ctl 0xBF2 bmdma 0xE800 irq 11
ata2: SATA max UDMA/133 cmd 0x970 ctl 0xB72 bmdma 0xE808 irq 11
scsi0 : sata_nv
ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
ata1.00: ATA-7, max UDMA/133, 586072368 sectors: LBA48 NCQ (depth 0/32)
ata1.00: ata1: dev 0 multi count 16
ata1.00: configured for UDMA/133
scsi1 : sata_nv
ata2: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
ata2.00: ATA-7, max UDMA/133, 586072368 sectors: LBA48 NCQ (depth 0/32)
ata2.00: ata2: dev 0 multi count 16
ata2.00: configured for UDMA/133
scsi 0:0:0:0: Direct-Access ATA ST3300831AS 3.06 PQ: 0 ANSI: 5
SCSI device sda: 586072368 512-byte hdwr sectors (300069 MB)
sda: Write Protect is off
sda: Mode Sense: 00 3a 00 00
SCSI device sda: drive cache: write back
SCSI device sda: 586072368 512-byte hdwr sectors (300069 MB)
sda: Write Protect is off
sda: Mode Sense: 00 3a 00 00
SCSI device sda: drive cache: write back
sda: sda1 sda2
sd 0:0:0:0: Attached scsi disk sda
sd 0:0:0:0: Attached scsi generic sg0 type 0
scsi 1:0:0:0: Direct-Access ATA ST3300831AS 3.06 PQ: 0 ANSI: 5
SCSI device sdb: 586072368 512-byte hdwr sectors (300069 MB)
sdb: Write Protect is off
sdb: Mode Sense: 00 3a 00 00
SCSI device sdb: drive cache: write back
SCSI device sdb: 586072368 512-byte hdwr sectors (300069 MB)
sdb: Write Protect is off
sdb: Mode Sense: 00 3a 00 00
SCSI device sdb: drive cache: write back
sdb: sdb1 sdb2
sd 1:0:0:0: Attached scsi disk sdb
sd 1:0:0:0: Attached scsi generic sg1 type 0
sata_uli 0000:01:06.0: version 1.0
ACPI: PCI Interrupt 0000:01:06.0[A] -> Link [LNK3] -> GSI 10 (level,
low) -> IRQ 10
ata3: SATA max UDMA/133 cmd 0x7000 ctl 0x7402 bmdma 0x8000 irq 10
ata4: SATA max UDMA/133 cmd 0x7800 ctl 0x7C02 bmdma 0x8008 irq 10
scsi2 : sata_uli
ata3: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
ata3.00: ATA-7, max UDMA/133, 625142448 sectors: LBA48 NCQ (depth 0/32)
ata3.00: ata3: dev 0 multi count 16
ata3.00: configured for UDMA/133
scsi3 : sata_uli
ata4: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
ata4.00: ATA-7, max UDMA/133, 586072368 sectors: LBA48 NCQ (depth 0/32)
ata4.00: ata4: dev 0 multi count 16
ata4.00: simplex DMA is claimed by other device, disabling DMA
ata4.00: configured for PIO4
scsi 2:0:0:0: Direct-Access ATA ST3320620AS 3.AA PQ: 0 ANSI: 5
SCSI device sdc: 625142448 512-byte hdwr sectors (320073 MB)
sdc: Write Protect is off
sdc: Mode Sense: 00 3a 00 00
SCSI device sdc: drive cache: write back
SCSI device sdc: 625142448 512-byte hdwr sectors (320073 MB)
sdc: Write Protect is off
sdc: Mode Sense: 00 3a 00 00
SCSI device sdc: drive cache: write back
sdc: sdc1 sdc2
sd 2:0:0:0: Attached scsi disk sdc
sd 2:0:0:0: Attached scsi generic sg2 type 0
scsi 3:0:0:0: Direct-Access ATA ST3300831AS 3.06 PQ: 0 ANSI: 5
SCSI device sdd: 586072368 512-byte hdwr sectors (300069 MB)
sdd: Write Protect is off
sdd: Mode Sense: 00 3a 00 00
SCSI device sdd: drive cache: write back
SCSI device sdd: 586072368 512-byte hdwr sectors (300069 MB)
sdd: Write Protect is off
sdd: Mode Sense: 00 3a 00 00
SCSI device sdd: drive cache: write back
sdd: sdd1 sdd2
sd 3:0:0:0: Attached scsi disk sdd
sd 3:0:0:0: Attached scsi generic sg3 type 0
Why is ata4 reporting "simplex DMA is claimed by another device" and
how can I get it to work correctly?
Please let me know if you need more information.
Cheers
David
next reply other threads:[~2006-12-13 5:02 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-12-13 5:02 David Shirley [this message]
2006-12-13 11:20 ` Alan
2006-12-16 16:13 ` Jeff Garzik
2006-12-20 0:32 ` Tejun Heo
2006-12-20 0:39 ` Jeff Garzik
2006-12-20 2:44 ` Tejun Heo
2006-12-27 13:44 ` Tejun Heo
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=f0e65c090612122102o327ac693u2f24a74a9ba973ef@mail.gmail.com \
--to=tephra@gmail.com \
--cc=linux-kernel@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
all inboxes | Powered by JetHome®