excess timeouts accessing pci-sata card both ports

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* excess timeouts accessing pci-sata card both ports
@ 2008-01-24  8:19 drtyc
  2008-01-24 22:59 ` drtyc
  0 siblings, 1 reply; 5+ messages in thread
From: drtyc @ 2008-01-24  8:19 UTC (permalink / raw)
  To: linux-ide

Hello.

The scenario:
PCI bus with 2 cards (sata_via)
Each card has 2 SATA ports connected.
Each disk does 40MB/s in hdparm -t read test.

First card has the sda and sdb
Second card has the sdc and sdd
verified by watching the led blinking on the card

ok - accessing two ports at same time but each port on different card:
cat /dev/sda > /dev/null & cat /dev/sdc > /dev/null

problem - accessing two ports at same time and both ports on same card:
cat /dev/sda > /dev/null & cat /dev/sdb > /dev/null

side effect of the problem:
due to heavy traffic on one port the reset of the other port fails with timeout and port is disabled

logged error command at the initial problem (is it DMA read ext and DMA write log?):
ata2.00: exception Emask 0x2 SAct 0x0 SErr 0x3000400 action 0x2 frozen
ata2.00: cmd 25/00:68:b8:83:13/00:01:00:00:00/e0 tag 0 cdb 0x0 data 184320 in
         res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x6 (timeout)
ata2: port is slow to respond, please be patient (Status 0xd0)

ata2.00: exception Emask 0x2 SAct 0x0 SErr 0x3000400 action 0x2 frozen
ata2.00: cmd c8/00:60:70:50:08/00:00:00:00:00/e0 tag 0 cdb 0x0 data 49152 in
         res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x6 (timeout)
ata2: port is slow to respond, please be patient (Status 0xd0)

logged EH sequence failure:
ata2: port is slow to respond, please be patient (Status 0xd0)
ata2: device not ready (errno=-16), forcing hardreset
ata2: hard resetting port
ata2: port is slow to respond, please be patient (Status 0x80)
ata2: COMRESET failed (errno=-16)
ata2: hard resetting port
ata2: port is slow to respond, please be patient (Status 0x80)
ata2: COMRESET failed (errno=-16)
ata2: hard resetting port
ata2: port is slow to respond, please be patient (Status 0x80)
ata2: COMRESET failed (errno=-16)
ata2: hard resetting port
ata2: COMRESET failed (errno=-16)
ata2: reset failed, giving up
ata2.00: disabled
ata2: EH complete
sd 1:0:0:0: [sdb] Result: hostbyte=0x04 driverbyte=0x00

tried does not work:
- multiply the ATA_TMOUT values by 10 and later by 100 against vanilla 
- increase retry counters

some lines from dmesg below
libata version 2.21 loaded.
sata_via 0000:00:0d.0: version 2.3
ACPI: PCI Interrupt 0000:00:0d.0[A] -> Link [LNKA] -> GSI 11 (level, low) -> IRQ 11
sata_via 0000:00:0d.0: routed to hard irq line 11
scsi0 : sata_via
scsi1 : sata_via
scsi2 : sata_via
ata1: SATA max UDMA/133 cmd 0x0001b800 ctl 0x0001b80a bmdma 0x0001a400 irq 11
ata2: SATA max UDMA/133 cmd 0x0001b400 ctl 0x0001b40a bmdma 0x0001a408 irq 11
ata3: PATA max UDMA/133 cmd 0x0001b000 ctl 0x0001b00a bmdma 0x0001a410 irq 11
ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 310)
ata1.00: ATA-7: Maxtor 6L250S0, BANC1G10, max UDMA/133
ata1.00: 490234752 sectors, multi 16: LBA48 NCQ (not used)
ata1.00: configured for UDMA/133
ata2: SATA link up 1.5 Gbps (SStatus 113 SControl 310)
ata2.00: ATA-7: Maxtor 6L250S0, BANC1G10, max UDMA/133
ata2.00: 490234752 sectors, multi 16: LBA48 NCQ (not used)
ata2.00: configured for UDMA/133
scsi 0:0:0:0: Direct-Access     ATA      Maxtor 6L250S0   BANC PQ: 0 ANSI: 5
sd 0:0:0:0: [sda] 490234752 512-byte hardware sectors (251000 MB)
sd 0:0:0:0: [sda] Write Protect is off
sd 0:0:0:0: [sda] Mode Sense: 00 3a 00 00
sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
sd 0:0:0:0: [sda] 490234752 512-byte hardware sectors (251000 MB)
sd 0:0:0:0: [sda] Write Protect is off
sd 0:0:0:0: [sda] Mode Sense: 00 3a 00 00
sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
 sda: sda1 sda2 sda3
sd 0:0:0:0: [sda] Attached SCSI disk
sd 0:0:0:0: Attached scsi generic sg0 type 0
scsi 1:0:0:0: Direct-Access     ATA      Maxtor 6L250S0   BANC PQ: 0 ANSI: 5
sd 1:0:0:0: [sdb] 490234752 512-byte hardware sectors (251000 MB)
sd 1:0:0:0: [sdb] Write Protect is off
sd 1:0:0:0: [sdb] Mode Sense: 00 3a 00 00
sd 1:0:0:0: [sdb] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
sd 1:0:0:0: [sdb] 490234752 512-byte hardware sectors (251000 MB)
sd 1:0:0:0: [sdb] Write Protect is off
sd 1:0:0:0: [sdb] Mode Sense: 00 3a 00 00
sd 1:0:0:0: [sdb] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
 sdb: sdb1 sdb2 sdb3
sd 1:0:0:0: [sdb] Attached SCSI disk
sd 1:0:0:0: Attached scsi generic sg1 type 0
ACPI: PCI Interrupt Link [LNKB] enabled at IRQ 10
PCI: setting IRQ 10 as level-triggered
ACPI: PCI Interrupt 0000:00:0e.0[A] -> Link [LNKB] -> GSI 10 (level, low) -> IRQ 10
sata_via 0000:00:0e.0: routed to hard irq line 10
scsi3 : sata_via
scsi4 : sata_via
scsi5 : sata_via
ata4: SATA max UDMA/133 cmd 0x00019800 ctl 0x0001980a bmdma 0x00018400 irq 10
ata5: SATA max UDMA/133 cmd 0x00019400 ctl 0x0001940a bmdma 0x00018408 irq 10
ata6: PATA max UDMA/133 cmd 0x00019000 ctl 0x0001900a bmdma 0x00018410 irq 10
ata4: SATA link up 1.5 Gbps (SStatus 113 SControl 310)
ata4.00: ATA-7: Maxtor 6L250S0, BANC1G10, max UDMA/133
ata4.00: 490234752 sectors, multi 16: LBA48 NCQ (not used)
ata4.00: configured for UDMA/133
ata5: SATA link up 1.5 Gbps (SStatus 113 SControl 310)
ata5.00: ATA-7: Maxtor 6L250S0, BANC1G10, max UDMA/133
ata5.00: 490234752 sectors, multi 16: LBA48 NCQ (not used)
ata5.00: configured for UDMA/133
scsi 3:0:0:0: Direct-Access     ATA      Maxtor 6L250S0   BANC PQ: 0 ANSI: 5
sd 3:0:0:0: [sdc] 490234752 512-byte hardware sectors (251000 MB)
sd 3:0:0:0: [sdc] Write Protect is off
sd 3:0:0:0: [sdc] Mode Sense: 00 3a 00 00
sd 3:0:0:0: [sdc] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
sd 3:0:0:0: [sdc] 490234752 512-byte hardware sectors (251000 MB)
sd 3:0:0:0: [sdc] Write Protect is off
sd 3:0:0:0: [sdc] Mode Sense: 00 3a 00 00
sd 3:0:0:0: [sdc] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
 sdc: sdc1 sdc2 sdc3
sd 3:0:0:0: [sdc] Attached SCSI disk
sd 3:0:0:0: Attached scsi generic sg2 type 0
scsi 4:0:0:0: Direct-Access     ATA      Maxtor 6L250S0   BANC PQ: 0 ANSI: 5
sd 4:0:0:0: [sdd] 490234752 512-byte hardware sectors (251000 MB)
sd 4:0:0:0: [sdd] Write Protect is off
sd 4:0:0:0: [sdd] Mode Sense: 00 3a 00 00
sd 4:0:0:0: [sdd] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
sd 4:0:0:0: [sdd] 490234752 512-byte hardware sectors (251000 MB)
sd 4:0:0:0: [sdd] Write Protect is off
sd 4:0:0:0: [sdd] Mode Sense: 00 3a 00 00
sd 4:0:0:0: [sdd] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
 sdd: sdd1 sdd2 sdd3
sd 4:0:0:0: [sdd] Attached SCSI disk
sd 4:0:0:0: Attached scsi generic sg3 type 0

The card information:
00:0d.0 RAID bus controller: VIA Technologies, Inc. VT6421 IDE RAID Controller (rev 50)
        Subsystem: VIA Technologies, Inc. VT6421 IDE RAID Controller
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
        Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
        Latency: 32
        Interrupt: pin A routed to IRQ 11
        Region 0: I/O ports at b800 [size=16]
        Region 1: I/O ports at b400 [size=16]
        Region 2: I/O ports at b000 [size=16]
        Region 3: I/O ports at a800 [size=16]
        Region 4: I/O ports at a400 [size=32]
        Region 5: I/O ports at a000 [size=256]
        [virtual] Expansion ROM at 30100000 [disabled] [size=64K]
        Capabilities: [e0] Power Management version 2
                Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
                Status: D0 PME-Enable- DSel=0 DScale=0 PME-
00: 06 11 49 32 07 00 90 02 50 00 04 01 00 20 00 00
10: 01 b8 00 00 01 b4 00 00 01 b0 00 00 01 a8 00 00
20: 01 a4 00 00 01 a0 00 00 00 00 00 00 06 11 49 32
30: 00 00 00 00 e0 00 00 00 00 00 00 00 0b 01 00 00
40: 33 03 f1 44 06 af 00 00 00 00 00 03 00 00 00 00
50: 00 00 00 00 00 00 00 00 00 10 10 00 05 00 20 00
60: 00 00 ff ff 00 00 00 00 00 00 00 00 00 00 ff ff
70: 00 00 00 00 01 f0 00 00 01 00 01 00 00 00 00 00
80: 00 00 00 00 00 00 00 00 00 20 f2 1f 00 10 b7 1f
90: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
a0: 0b f2 c9 35 10 ac c0 00 a8 a8 a8 a8 ff 00 b6 b6
b0: 0f 0f 0f 0f 34 00 00 00 00 00 20 00 00 00 00 00
c0: 00 02 00 00 00 00 00 00 00 02 00 00 00 00 00 00
d0: 02 01 00 00 00 00 00 00 02 01 00 00 00 00 00 00
e0: 01 00 02 00 00 00 00 00 50 01 49 32 06 11 49 32
f0: 00 00 70 00 00 00 00 00 00 00 00 00 00 00 00 00

00:0e.0 RAID bus controller: VIA Technologies, Inc. VT6421 IDE RAID Controller (rev 50)
        Subsystem: VIA Technologies, Inc. VT6421 IDE RAID Controller
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
        Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
        Latency: 32
        Interrupt: pin A routed to IRQ 10
        Region 0: I/O ports at 9800 [size=16]
        Region 1: I/O ports at 9400 [size=16]
        Region 2: I/O ports at 9000 [size=16]
        Region 3: I/O ports at 8800 [size=16]
        Region 4: I/O ports at 8400 [size=32]
        Region 5: I/O ports at 8000 [size=256]
        [virtual] Expansion ROM at 30110000 [disabled] [size=64K]
        Capabilities: [e0] Power Management version 2
                Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
                Status: D0 PME-Enable- DSel=0 DScale=0 PME-
00: 06 11 49 32 07 00 90 02 50 00 04 01 00 20 00 00
10: 01 98 00 00 01 94 00 00 01 90 00 00 01 88 00 00
20: 01 84 00 00 01 80 00 00 00 00 00 00 06 11 49 32
30: 00 00 00 00 e0 00 00 00 00 00 00 00 0a 01 00 00
40: 33 03 f1 44 06 af 00 00 00 00 00 03 00 00 00 00
50: 00 00 00 00 00 00 00 00 00 10 10 00 05 00 10 00
60: 00 00 ff ff 00 00 00 00 00 00 00 00 00 00 ff ff
70: 00 00 00 00 01 f0 00 00 01 00 01 00 00 00 00 00
80: 00 00 00 00 00 00 00 00 00 80 b6 1f 00 70 bb 1f
90: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
a0: 0b f2 c9 35 10 ac c0 00 a8 a8 a8 a8 ff 00 b6 b6
b0: 0f 0f 0f 0f 34 00 00 00 00 00 20 00 00 00 00 00
c0: 00 02 00 00 00 00 00 00 00 02 00 00 00 00 00 00
d0: 02 01 00 00 00 00 00 00 02 01 00 00 00 00 00 00
e0: 01 00 02 00 00 00 00 00 50 01 49 32 06 11 49 32
f0: 00 00 70 00 00 00 00 00 00 00 00 00 00 00 00 00

Thanks for everything and anything.

PS: to me it seems that the kernel treats both ports on one card as paralelly accessible SATA ports but the PCI/DMA makes it only one port a time and this missed fact is causing the problem. So the question is this correct and where should I start looking for the port to pci slot mapping to group ports and where to add some kind of locking - first/second port. (if nobody else has that already fixed somewhere)
Btw. how about 3 port and 4 port cards?


^ permalink raw reply	[flat|nested] 5+ messages in thread

* Re: excess timeouts accessing pci-sata card both ports
  2008-01-24  8:19 excess timeouts accessing pci-sata card both ports drtyc
@ 2008-01-24 22:59 ` drtyc
       [not found]   ` <200801250037.4195@centrum.cz>
  0 siblings, 1 reply; 5+ messages in thread
From: drtyc @ 2008-01-24 22:59 UTC (permalink / raw)
  To: linux-ide

Hi.

More through test revealed that only the second port of each card is failing.

Accessing (cat /dev/sdX > /dev/null) just the sdb or sdd alone = one drive at time produces the error message.

Switched data cables on the card. ata1 port for ata2 port. This should eliminate defective power cable to sdb.
And also switched ata4 port for ata5 port data cable. This sould eliminate defective power cable to sdd.
(ata3 and 6 are not connected PATA ports on each card)

Failing is again port 2 and port 5 which is now originally flawlessly working drives now failing.


______________________________________________________________
> Od: drtyc@centrum.cz
> Komu: <linux-ide@vger.kernel.org>
> Datum: 24.01.2008 09:27
> Předmět: excess timeouts accessing pci-sata card both ports
>
>Hello.
>
>The scenario:
>PCI bus with 2 cards (sata_via)
>Each card has 2 SATA ports connected.
>Each disk does 40MB/s in hdparm -t read test.
>
>First card has the sda and sdb
>Second card has the sdc and sdd
>verified by watching the led blinking on the card
>
>ok - accessing two ports at same time but each port on different card:
>cat /dev/sda > /dev/null & cat /dev/sdc > /dev/null
>
>problem - accessing two ports at same time and both ports on same card:
>cat /dev/sda > /dev/null & cat /dev/sdb > /dev/null
>
>side effect of the problem:
>due to heavy traffic on one port the reset of the other port fails with
timeout and port is disabled
>
>logged error command at the initial problem (is it DMA read ext and DMA
write log?):
>ata2.00: exception Emask 0x2 SAct 0x0 SErr 0x3000400 action 0x2 frozen
>ata2.00: cmd 25/00:68:b8:83:13/00:01:00:00:00/e0 tag 0 cdb 0x0 data
184320 in
>         res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x6 (timeout)
>ata2: port is slow to respond, please be patient (Status 0xd0)
>
>ata2.00: exception Emask 0x2 SAct 0x0 SErr 0x3000400 action 0x2 frozen
>ata2.00: cmd c8/00:60:70:50:08/00:00:00:00:00/e0 tag 0 cdb 0x0 data 49152
in
>         res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x6 (timeout)
>ata2: port is slow to respond, please be patient (Status 0xd0)
>
>logged EH sequence failure:
>ata2: port is slow to respond, please be patient (Status 0xd0)
>ata2: device not ready (errno=-16), forcing hardreset
>ata2: hard resetting port
>ata2: port is slow to respond, please be patient (Status 0x80)
>ata2: COMRESET failed (errno=-16)
>ata2: hard resetting port
>ata2: port is slow to respond, please be patient (Status 0x80)
>ata2: COMRESET failed (errno=-16)
>ata2: hard resetting port
>ata2: port is slow to respond, please be patient (Status 0x80)
>ata2: COMRESET failed (errno=-16)
>ata2: hard resetting port
>ata2: COMRESET failed (errno=-16)
>ata2: reset failed, giving up
>ata2.00: disabled
>ata2: EH complete
>sd 1:0:0:0: [sdb] Result: hostbyte=0x04 driverbyte=0x00
>
>tried does not work:
>- multiply the ATA_TMOUT values by 10 and later by 100 against vanilla 
>- increase retry counters
>
>some lines from dmesg below
>libata version 2.21 loaded.
>sata_via 0000:00:0d.0: version 2.3
>ACPI: PCI Interrupt 0000:00:0d.0[A] -> Link [LNKA] -> GSI 11 (level, low)
-> IRQ 11
>sata_via 0000:00:0d.0: routed to hard irq line 11
>scsi0 : sata_via
>scsi1 : sata_via
>scsi2 : sata_via
>ata1: SATA max UDMA/133 cmd 0x0001b800 ctl 0x0001b80a bmdma 0x0001a400
irq 11
>ata2: SATA max UDMA/133 cmd 0x0001b400 ctl 0x0001b40a bmdma 0x0001a408
irq 11
>ata3: PATA max UDMA/133 cmd 0x0001b000 ctl 0x0001b00a bmdma 0x0001a410
irq 11
>ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 310)
>ata1.00: ATA-7: Maxtor 6L250S0, BANC1G10, max UDMA/133
>ata1.00: 490234752 sectors, multi 16: LBA48 NCQ (not used)
>ata1.00: configured for UDMA/133
>ata2: SATA link up 1.5 Gbps (SStatus 113 SControl 310)
>ata2.00: ATA-7: Maxtor 6L250S0, BANC1G10, max UDMA/133
>ata2.00: 490234752 sectors, multi 16: LBA48 NCQ (not used)
>ata2.00: configured for UDMA/133
>scsi 0:0:0:0: Direct-Access     ATA      Maxtor 6L250S0   BANC PQ: 0
ANSI: 5
>sd 0:0:0:0: [sda] 490234752 512-byte hardware sectors (251000 MB)
>sd 0:0:0:0: [sda] Write Protect is off
>sd 0:0:0:0: [sda] Mode Sense: 00 3a 00 00
>sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't
support DPO or FUA
>sd 0:0:0:0: [sda] 490234752 512-byte hardware sectors (251000 MB)
>sd 0:0:0:0: [sda] Write Protect is off
>sd 0:0:0:0: [sda] Mode Sense: 00 3a 00 00
>sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't
support DPO or FUA
> sda: sda1 sda2 sda3
>sd 0:0:0:0: [sda] Attached SCSI disk
>sd 0:0:0:0: Attached scsi generic sg0 type 0
>scsi 1:0:0:0: Direct-Access     ATA      Maxtor 6L250S0   BANC PQ: 0
ANSI: 5
>sd 1:0:0:0: [sdb] 490234752 512-byte hardware sectors (251000 MB)
>sd 1:0:0:0: [sdb] Write Protect is off
>sd 1:0:0:0: [sdb] Mode Sense: 00 3a 00 00
>sd 1:0:0:0: [sdb] Write cache: enabled, read cache: enabled, doesn't
support DPO or FUA
>sd 1:0:0:0: [sdb] 490234752 512-byte hardware sectors (251000 MB)
>sd 1:0:0:0: [sdb] Write Protect is off
>sd 1:0:0:0: [sdb] Mode Sense: 00 3a 00 00
>sd 1:0:0:0: [sdb] Write cache: enabled, read cache: enabled, doesn't
support DPO or FUA
> sdb: sdb1 sdb2 sdb3
>sd 1:0:0:0: [sdb] Attached SCSI disk
>sd 1:0:0:0: Attached scsi generic sg1 type 0
>ACPI: PCI Interrupt Link [LNKB] enabled at IRQ 10
>PCI: setting IRQ 10 as level-triggered
>ACPI: PCI Interrupt 0000:00:0e.0[A] -> Link [LNKB] -> GSI 10 (level, low)
-> IRQ 10
>sata_via 0000:00:0e.0: routed to hard irq line 10
>scsi3 : sata_via
>scsi4 : sata_via
>scsi5 : sata_via
>ata4: SATA max UDMA/133 cmd 0x00019800 ctl 0x0001980a bmdma 0x00018400
irq 10
>ata5: SATA max UDMA/133 cmd 0x00019400 ctl 0x0001940a bmdma 0x00018408
irq 10
>ata6: PATA max UDMA/133 cmd 0x00019000 ctl 0x0001900a bmdma 0x00018410
irq 10
>ata4: SATA link up 1.5 Gbps (SStatus 113 SControl 310)
>ata4.00: ATA-7: Maxtor 6L250S0, BANC1G10, max UDMA/133
>ata4.00: 490234752 sectors, multi 16: LBA48 NCQ (not used)
>ata4.00: configured for UDMA/133
>ata5: SATA link up 1.5 Gbps (SStatus 113 SControl 310)
>ata5.00: ATA-7: Maxtor 6L250S0, BANC1G10, max UDMA/133
>ata5.00: 490234752 sectors, multi 16: LBA48 NCQ (not used)
>ata5.00: configured for UDMA/133
>scsi 3:0:0:0: Direct-Access     ATA      Maxtor 6L250S0   BANC PQ: 0
ANSI: 5
>sd 3:0:0:0: [sdc] 490234752 512-byte hardware sectors (251000 MB)
>sd 3:0:0:0: [sdc] Write Protect is off
>sd 3:0:0:0: [sdc] Mode Sense: 00 3a 00 00
>sd 3:0:0:0: [sdc] Write cache: enabled, read cache: enabled, doesn't
support DPO or FUA
>sd 3:0:0:0: [sdc] 490234752 512-byte hardware sectors (251000 MB)
>sd 3:0:0:0: [sdc] Write Protect is off
>sd 3:0:0:0: [sdc] Mode Sense: 00 3a 00 00
>sd 3:0:0:0: [sdc] Write cache: enabled, read cache: enabled, doesn't
support DPO or FUA
> sdc: sdc1 sdc2 sdc3
>sd 3:0:0:0: [sdc] Attached SCSI disk
>sd 3:0:0:0: Attached scsi generic sg2 type 0
>scsi 4:0:0:0: Direct-Access     ATA      Maxtor 6L250S0   BANC PQ: 0
ANSI: 5
>sd 4:0:0:0: [sdd] 490234752 512-byte hardware sectors (251000 MB)
>sd 4:0:0:0: [sdd] Write Protect is off
>sd 4:0:0:0: [sdd] Mode Sense: 00 3a 00 00
>sd 4:0:0:0: [sdd] Write cache: enabled, read cache: enabled, doesn't
support DPO or FUA
>sd 4:0:0:0: [sdd] 490234752 512-byte hardware sectors (251000 MB)
>sd 4:0:0:0: [sdd] Write Protect is off
>sd 4:0:0:0: [sdd] Mode Sense: 00 3a 00 00
>sd 4:0:0:0: [sdd] Write cache: enabled, read cache: enabled, doesn't
support DPO or FUA
> sdd: sdd1 sdd2 sdd3
>sd 4:0:0:0: [sdd] Attached SCSI disk
>sd 4:0:0:0: Attached scsi generic sg3 type 0
>
>The card information:
>00:0d.0 RAID bus controller: VIA Technologies, Inc. VT6421 IDE RAID
Controller (rev 50)
>        Subsystem: VIA Technologies, Inc. VT6421 IDE RAID Controller
>        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B-
>        Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
>        Latency: 32
>        Interrupt: pin A routed to IRQ 11
>        Region 0: I/O ports at b800 [size=16]
>        Region 1: I/O ports at b400 [size=16]
>        Region 2: I/O ports at b000 [size=16]
>        Region 3: I/O ports at a800 [size=16]
>        Region 4: I/O ports at a400 [size=32]
>        Region 5: I/O ports at a000 [size=256]
>        [virtual] Expansion ROM at 30100000 [disabled] [size=64K]
>        Capabilities: [e0] Power Management version 2
>                Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA
PME(D0-,D1-,D2-,D3hot-,D3cold-)
>                Status: D0 PME-Enable- DSel=0 DScale=0 PME-
>00: 06 11 49 32 07 00 90 02 50 00 04 01 00 20 00 00
>10: 01 b8 00 00 01 b4 00 00 01 b0 00 00 01 a8 00 00
>20: 01 a4 00 00 01 a0 00 00 00 00 00 00 06 11 49 32
>30: 00 00 00 00 e0 00 00 00 00 00 00 00 0b 01 00 00
>40: 33 03 f1 44 06 af 00 00 00 00 00 03 00 00 00 00
>50: 00 00 00 00 00 00 00 00 00 10 10 00 05 00 20 00
>60: 00 00 ff ff 00 00 00 00 00 00 00 00 00 00 ff ff
>70: 00 00 00 00 01 f0 00 00 01 00 01 00 00 00 00 00
>80: 00 00 00 00 00 00 00 00 00 20 f2 1f 00 10 b7 1f
>90: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>a0: 0b f2 c9 35 10 ac c0 00 a8 a8 a8 a8 ff 00 b6 b6
>b0: 0f 0f 0f 0f 34 00 00 00 00 00 20 00 00 00 00 00
>c0: 00 02 00 00 00 00 00 00 00 02 00 00 00 00 00 00
>d0: 02 01 00 00 00 00 00 00 02 01 00 00 00 00 00 00
>e0: 01 00 02 00 00 00 00 00 50 01 49 32 06 11 49 32
>f0: 00 00 70 00 00 00 00 00 00 00 00 00 00 00 00 00
>
>00:0e.0 RAID bus controller: VIA Technologies, Inc. VT6421 IDE RAID
Controller (rev 50)
>        Subsystem: VIA Technologies, Inc. VT6421 IDE RAID Controller
>        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B-
>        Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
>        Latency: 32
>        Interrupt: pin A routed to IRQ 10
>        Region 0: I/O ports at 9800 [size=16]
>        Region 1: I/O ports at 9400 [size=16]
>        Region 2: I/O ports at 9000 [size=16]
>        Region 3: I/O ports at 8800 [size=16]
>        Region 4: I/O ports at 8400 [size=32]
>        Region 5: I/O ports at 8000 [size=256]
>        [virtual] Expansion ROM at 30110000 [disabled] [size=64K]
>        Capabilities: [e0] Power Management version 2
>                Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA
PME(D0-,D1-,D2-,D3hot-,D3cold-)
>                Status: D0 PME-Enable- DSel=0 DScale=0 PME-
>00: 06 11 49 32 07 00 90 02 50 00 04 01 00 20 00 00
>10: 01 98 00 00 01 94 00 00 01 90 00 00 01 88 00 00
>20: 01 84 00 00 01 80 00 00 00 00 00 00 06 11 49 32
>30: 00 00 00 00 e0 00 00 00 00 00 00 00 0a 01 00 00
>40: 33 03 f1 44 06 af 00 00 00 00 00 03 00 00 00 00
>50: 00 00 00 00 00 00 00 00 00 10 10 00 05 00 10 00
>60: 00 00 ff ff 00 00 00 00 00 00 00 00 00 00 ff ff
>70: 00 00 00 00 01 f0 00 00 01 00 01 00 00 00 00 00
>80: 00 00 00 00 00 00 00 00 00 80 b6 1f 00 70 bb 1f
>90: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>a0: 0b f2 c9 35 10 ac c0 00 a8 a8 a8 a8 ff 00 b6 b6
>b0: 0f 0f 0f 0f 34 00 00 00 00 00 20 00 00 00 00 00
>c0: 00 02 00 00 00 00 00 00 00 02 00 00 00 00 00 00
>d0: 02 01 00 00 00 00 00 00 02 01 00 00 00 00 00 00
>e0: 01 00 02 00 00 00 00 00 50 01 49 32 06 11 49 32
>f0: 00 00 70 00 00 00 00 00 00 00 00 00 00 00 00 00
>
>Thanks for everything and anything.
>
>PS: to me it seems that the kernel treats both ports on one card as
paralelly accessible SATA ports but the PCI/DMA makes it only one port a
time and this missed fact is causing the problem. So the question is this
correct and where should I start looking for the port to pci slot mapping
to group ports and where to add some kind of locking - first/second port.
(if nobody else has that already fixed somewhere)
>Btw. how about 3 port and 4 port cards?
>
>-
>To unsubscribe from this list: send the line "unsubscribe linux-ide" in
>the body of a message to majordomo@vger.kernel.org
>More majordomo info at  http://vger.kernel.org/majordomo-info.html
>


^ permalink raw reply	[flat|nested] 5+ messages in thread

[parent not found: <200801250037.4195@centrum.cz>]

* Re: excess timeouts accessing pci-sata card both ports
       [not found]   ` <200801250037.4195@centrum.cz>
@ 2008-01-24 23:55     ` drtyc
  2008-02-02  5:11       ` Tejun Heo
  0 siblings, 1 reply; 5+ messages in thread
From: drtyc @ 2008-01-24 23:55 UTC (permalink / raw)
  To: linux-ide

Hmm.

Removed 3 drives. Both data and power.
Left only port1 connected
It's the drive and power cable that in the first test was port2 failing
and in second test was port1 and ok
both cards plugged in and initialized.
third test it's the port1 alone sda working ok
fourth test it's the port2 alone sda failing.

any idea what's wrong as this does not seem to be power related problem.

vanilla 2.6.23.14
sata_via module... details in the inlined emails.

(4th test config)
ata1: SATA link down (SStatus 0 SControl 310)
ata2: SATA link up 1.5 Gbps (SStatus 113 SControl 310)
ata4: SATA link down (SStatus 0 SControl 310)
ata5: SATA link down (SStatus 0 SControl 310)

Faulty card? Both cards? Driver bug? Or design bug/incompatibility on second port?
______________________________________________________________
> Od: drtyc@centrum.cz
> Komu: <linux-ide@vger.kernel.org>
> Datum: 24.01.2008 23:59
> Předmět: Re: excess timeouts accessing pci-sata card both ports
>
>Hi.
>
>More through test revealed that only the second port of each card is
failing.
>
>Accessing (cat /dev/sdX > /dev/null) just the sdb or sdd alone = one
drive at time produces the error message.
>
>Switched data cables on the card. ata1 port for ata2 port. This should
eliminate defective power cable to sdb.
>And also switched ata4 port for ata5 port data cable. This sould
eliminate defective power cable to sdd.
>(ata3 and 6 are not connected PATA ports on each card)
>
>Failing is again port 2 and port 5 which is now originally flawlessly
working drives now failing.
>
>
>______________________________________________________________
>> Od: drtyc@centrum.cz
>> Komu: <linux-ide@vger.kernel.org>
>> Datum: 24.01.2008 09:27
>> Předmět: excess timeouts accessing pci-sata card both ports
>>
>>Hello.
>>
>>The scenario:
>>PCI bus with 2 cards (sata_via)
>>Each card has 2 SATA ports connected.
>>Each disk does 40MB/s in hdparm -t read test.
>>
>>First card has the sda and sdb
>>Second card has the sdc and sdd
>>verified by watching the led blinking on the card
>>
>>ok - accessing two ports at same time but each port on different card:
>>cat /dev/sda > /dev/null & cat /dev/sdc > /dev/null
>>
>>problem - accessing two ports at same time and both ports on same card:
>>cat /dev/sda > /dev/null & cat /dev/sdb > /dev/null
>>
>>side effect of the problem:
>>due to heavy traffic on one port the reset of the other port fails with
>timeout and port is disabled
>>
>>logged error command at the initial problem (is it DMA read ext and DMA
>write log?):
>>ata2.00: exception Emask 0x2 SAct 0x0 SErr 0x3000400 action 0x2 frozen
>>ata2.00: cmd 25/00:68:b8:83:13/00:01:00:00:00/e0 tag 0 cdb 0x0 data
>184320 in
>>         res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x6 (timeout)
>>ata2: port is slow to respond, please be patient (Status 0xd0)
>>
>>ata2.00: exception Emask 0x2 SAct 0x0 SErr 0x3000400 action 0x2 frozen
>>ata2.00: cmd c8/00:60:70:50:08/00:00:00:00:00/e0 tag 0 cdb 0x0 data
49152
>in
>>         res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x6 (timeout)
>>ata2: port is slow to respond, please be patient (Status 0xd0)
>>
>>logged EH sequence failure:
>>ata2: port is slow to respond, please be patient (Status 0xd0)
>>ata2: device not ready (errno=-16), forcing hardreset
>>ata2: hard resetting port
>>ata2: port is slow to respond, please be patient (Status 0x80)
>>ata2: COMRESET failed (errno=-16)
>>ata2: hard resetting port
>>ata2: port is slow to respond, please be patient (Status 0x80)
>>ata2: COMRESET failed (errno=-16)
>>ata2: hard resetting port
>>ata2: port is slow to respond, please be patient (Status 0x80)
>>ata2: COMRESET failed (errno=-16)
>>ata2: hard resetting port
>>ata2: COMRESET failed (errno=-16)
>>ata2: reset failed, giving up
>>ata2.00: disabled
>>ata2: EH complete
>>sd 1:0:0:0: [sdb] Result: hostbyte=0x04 driverbyte=0x00
>>
>>tried does not work:
>>- multiply the ATA_TMOUT values by 10 and later by 100 against vanilla 
>>- increase retry counters
>>
>>some lines from dmesg below
>>libata version 2.21 loaded.
>>sata_via 0000:00:0d.0: version 2.3
>>ACPI: PCI Interrupt 0000:00:0d.0[A] -> Link [LNKA] -> GSI 11 (level,
low)
>-> IRQ 11
>>sata_via 0000:00:0d.0: routed to hard irq line 11
>>scsi0 : sata_via
>>scsi1 : sata_via
>>scsi2 : sata_via
>>ata1: SATA max UDMA/133 cmd 0x0001b800 ctl 0x0001b80a bmdma 0x0001a400
>irq 11
>>ata2: SATA max UDMA/133 cmd 0x0001b400 ctl 0x0001b40a bmdma 0x0001a408
>irq 11
>>ata3: PATA max UDMA/133 cmd 0x0001b000 ctl 0x0001b00a bmdma 0x0001a410
>irq 11
>>ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 310)
>>ata1.00: ATA-7: Maxtor 6L250S0, BANC1G10, max UDMA/133
>>ata1.00: 490234752 sectors, multi 16: LBA48 NCQ (not used)
>>ata1.00: configured for UDMA/133
>>ata2: SATA link up 1.5 Gbps (SStatus 113 SControl 310)
>>ata2.00: ATA-7: Maxtor 6L250S0, BANC1G10, max UDMA/133
>>ata2.00: 490234752 sectors, multi 16: LBA48 NCQ (not used)
>>ata2.00: configured for UDMA/133
>>scsi 0:0:0:0: Direct-Access     ATA      Maxtor 6L250S0   BANC PQ: 0
>ANSI: 5
>>sd 0:0:0:0: [sda] 490234752 512-byte hardware sectors (251000 MB)
>>sd 0:0:0:0: [sda] Write Protect is off
>>sd 0:0:0:0: [sda] Mode Sense: 00 3a 00 00
>>sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't
>support DPO or FUA
>>sd 0:0:0:0: [sda] 490234752 512-byte hardware sectors (251000 MB)
>>sd 0:0:0:0: [sda] Write Protect is off
>>sd 0:0:0:0: [sda] Mode Sense: 00 3a 00 00
>>sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't
>support DPO or FUA
>> sda: sda1 sda2 sda3
>>sd 0:0:0:0: [sda] Attached SCSI disk
>>sd 0:0:0:0: Attached scsi generic sg0 type 0
>>scsi 1:0:0:0: Direct-Access     ATA      Maxtor 6L250S0   BANC PQ: 0
>ANSI: 5
>>sd 1:0:0:0: [sdb] 490234752 512-byte hardware sectors (251000 MB)
>>sd 1:0:0:0: [sdb] Write Protect is off
>>sd 1:0:0:0: [sdb] Mode Sense: 00 3a 00 00
>>sd 1:0:0:0: [sdb] Write cache: enabled, read cache: enabled, doesn't
>support DPO or FUA
>>sd 1:0:0:0: [sdb] 490234752 512-byte hardware sectors (251000 MB)
>>sd 1:0:0:0: [sdb] Write Protect is off
>>sd 1:0:0:0: [sdb] Mode Sense: 00 3a 00 00
>>sd 1:0:0:0: [sdb] Write cache: enabled, read cache: enabled, doesn't
>support DPO or FUA
>> sdb: sdb1 sdb2 sdb3
>>sd 1:0:0:0: [sdb] Attached SCSI disk
>>sd 1:0:0:0: Attached scsi generic sg1 type 0
>>ACPI: PCI Interrupt Link [LNKB] enabled at IRQ 10
>>PCI: setting IRQ 10 as level-triggered
>>ACPI: PCI Interrupt 0000:00:0e.0[A] -> Link [LNKB] -> GSI 10 (level,
low)
>-> IRQ 10
>>sata_via 0000:00:0e.0: routed to hard irq line 10
>>scsi3 : sata_via
>>scsi4 : sata_via
>>scsi5 : sata_via
>>ata4: SATA max UDMA/133 cmd 0x00019800 ctl 0x0001980a bmdma 0x00018400
>irq 10
>>ata5: SATA max UDMA/133 cmd 0x00019400 ctl 0x0001940a bmdma 0x00018408
>irq 10
>>ata6: PATA max UDMA/133 cmd 0x00019000 ctl 0x0001900a bmdma 0x00018410
>irq 10
>>ata4: SATA link up 1.5 Gbps (SStatus 113 SControl 310)
>>ata4.00: ATA-7: Maxtor 6L250S0, BANC1G10, max UDMA/133
>>ata4.00: 490234752 sectors, multi 16: LBA48 NCQ (not used)
>>ata4.00: configured for UDMA/133
>>ata5: SATA link up 1.5 Gbps (SStatus 113 SControl 310)
>>ata5.00: ATA-7: Maxtor 6L250S0, BANC1G10, max UDMA/133
>>ata5.00: 490234752 sectors, multi 16: LBA48 NCQ (not used)
>>ata5.00: configured for UDMA/133
>>scsi 3:0:0:0: Direct-Access     ATA      Maxtor 6L250S0   BANC PQ: 0
>ANSI: 5
>>sd 3:0:0:0: [sdc] 490234752 512-byte hardware sectors (251000 MB)
>>sd 3:0:0:0: [sdc] Write Protect is off
>>sd 3:0:0:0: [sdc] Mode Sense: 00 3a 00 00
>>sd 3:0:0:0: [sdc] Write cache: enabled, read cache: enabled, doesn't
>support DPO or FUA
>>sd 3:0:0:0: [sdc] 490234752 512-byte hardware sectors (251000 MB)
>>sd 3:0:0:0: [sdc] Write Protect is off
>>sd 3:0:0:0: [sdc] Mode Sense: 00 3a 00 00
>>sd 3:0:0:0: [sdc] Write cache: enabled, read cache: enabled, doesn't
>support DPO or FUA
>> sdc: sdc1 sdc2 sdc3
>>sd 3:0:0:0: [sdc] Attached SCSI disk
>>sd 3:0:0:0: Attached scsi generic sg2 type 0
>>scsi 4:0:0:0: Direct-Access     ATA      Maxtor 6L250S0   BANC PQ: 0
>ANSI: 5
>>sd 4:0:0:0: [sdd] 490234752 512-byte hardware sectors (251000 MB)
>>sd 4:0:0:0: [sdd] Write Protect is off
>>sd 4:0:0:0: [sdd] Mode Sense: 00 3a 00 00
>>sd 4:0:0:0: [sdd] Write cache: enabled, read cache: enabled, doesn't
>support DPO or FUA
>>sd 4:0:0:0: [sdd] 490234752 512-byte hardware sectors (251000 MB)
>>sd 4:0:0:0: [sdd] Write Protect is off
>>sd 4:0:0:0: [sdd] Mode Sense: 00 3a 00 00
>>sd 4:0:0:0: [sdd] Write cache: enabled, read cache: enabled, doesn't
>support DPO or FUA
>> sdd: sdd1 sdd2 sdd3
>>sd 4:0:0:0: [sdd] Attached SCSI disk
>>sd 4:0:0:0: Attached scsi generic sg3 type 0
>>
>>The card information:
>>00:0d.0 RAID bus controller: VIA Technologies, Inc. VT6421 IDE RAID
>Controller (rev 50)
>>        Subsystem: VIA Technologies, Inc. VT6421 IDE RAID Controller
>>        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
>ParErr- Stepping- SERR- FastB2B-
>>        Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
><TAbort- <MAbort- >SERR- <PERR-
>>        Latency: 32
>>        Interrupt: pin A routed to IRQ 11
>>        Region 0: I/O ports at b800 [size=16]
>>        Region 1: I/O ports at b400 [size=16]
>>        Region 2: I/O ports at b000 [size=16]
>>        Region 3: I/O ports at a800 [size=16]
>>        Region 4: I/O ports at a400 [size=32]
>>        Region 5: I/O ports at a000 [size=256]
>>        [virtual] Expansion ROM at 30100000 [disabled] [size=64K]
>>        Capabilities: [e0] Power Management version 2
>>                Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA
>PME(D0-,D1-,D2-,D3hot-,D3cold-)
>>                Status: D0 PME-Enable- DSel=0 DScale=0 PME-
>>00: 06 11 49 32 07 00 90 02 50 00 04 01 00 20 00 00
>>10: 01 b8 00 00 01 b4 00 00 01 b0 00 00 01 a8 00 00
>>20: 01 a4 00 00 01 a0 00 00 00 00 00 00 06 11 49 32
>>30: 00 00 00 00 e0 00 00 00 00 00 00 00 0b 01 00 00
>>40: 33 03 f1 44 06 af 00 00 00 00 00 03 00 00 00 00
>>50: 00 00 00 00 00 00 00 00 00 10 10 00 05 00 20 00
>>60: 00 00 ff ff 00 00 00 00 00 00 00 00 00 00 ff ff
>>70: 00 00 00 00 01 f0 00 00 01 00 01 00 00 00 00 00
>>80: 00 00 00 00 00 00 00 00 00 20 f2 1f 00 10 b7 1f
>>90: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>>a0: 0b f2 c9 35 10 ac c0 00 a8 a8 a8 a8 ff 00 b6 b6
>>b0: 0f 0f 0f 0f 34 00 00 00 00 00 20 00 00 00 00 00
>>c0: 00 02 00 00 00 00 00 00 00 02 00 00 00 00 00 00
>>d0: 02 01 00 00 00 00 00 00 02 01 00 00 00 00 00 00
>>e0: 01 00 02 00 00 00 00 00 50 01 49 32 06 11 49 32
>>f0: 00 00 70 00 00 00 00 00 00 00 00 00 00 00 00 00
>>
>>00:0e.0 RAID bus controller: VIA Technologies, Inc. VT6421 IDE RAID
>Controller (rev 50)
>>        Subsystem: VIA Technologies, Inc. VT6421 IDE RAID Controller
>>        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
>ParErr- Stepping- SERR- FastB2B-
>>        Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
><TAbort- <MAbort- >SERR- <PERR-
>>        Latency: 32
>>        Interrupt: pin A routed to IRQ 10
>>        Region 0: I/O ports at 9800 [size=16]
>>        Region 1: I/O ports at 9400 [size=16]
>>        Region 2: I/O ports at 9000 [size=16]
>>        Region 3: I/O ports at 8800 [size=16]
>>        Region 4: I/O ports at 8400 [size=32]
>>        Region 5: I/O ports at 8000 [size=256]
>>        [virtual] Expansion ROM at 30110000 [disabled] [size=64K]
>>        Capabilities: [e0] Power Management version 2
>>                Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA
>PME(D0-,D1-,D2-,D3hot-,D3cold-)
>>                Status: D0 PME-Enable- DSel=0 DScale=0 PME-
>>00: 06 11 49 32 07 00 90 02 50 00 04 01 00 20 00 00
>>10: 01 98 00 00 01 94 00 00 01 90 00 00 01 88 00 00
>>20: 01 84 00 00 01 80 00 00 00 00 00 00 06 11 49 32
>>30: 00 00 00 00 e0 00 00 00 00 00 00 00 0a 01 00 00
>>40: 33 03 f1 44 06 af 00 00 00 00 00 03 00 00 00 00
>>50: 00 00 00 00 00 00 00 00 00 10 10 00 05 00 10 00
>>60: 00 00 ff ff 00 00 00 00 00 00 00 00 00 00 ff ff
>>70: 00 00 00 00 01 f0 00 00 01 00 01 00 00 00 00 00
>>80: 00 00 00 00 00 00 00 00 00 80 b6 1f 00 70 bb 1f
>>90: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>>a0: 0b f2 c9 35 10 ac c0 00 a8 a8 a8 a8 ff 00 b6 b6
>>b0: 0f 0f 0f 0f 34 00 00 00 00 00 20 00 00 00 00 00
>>c0: 00 02 00 00 00 00 00 00 00 02 00 00 00 00 00 00
>>d0: 02 01 00 00 00 00 00 00 02 01 00 00 00 00 00 00
>>e0: 01 00 02 00 00 00 00 00 50 01 49 32 06 11 49 32
>>f0: 00 00 70 00 00 00 00 00 00 00 00 00 00 00 00 00
>>
>>Thanks for everything and anything.
>>
>>PS: to me it seems that the kernel treats both ports on one card as
>paralelly accessible SATA ports but the PCI/DMA makes it only one port a
>time and this missed fact is causing the problem. So the question is this
>correct and where should I start looking for the port to pci slot mapping
>to group ports and where to add some kind of locking - first/second port.
>(if nobody else has that already fixed somewhere)
>>Btw. how about 3 port and 4 port cards?
>>
>>-
>>To unsubscribe from this list: send the line "unsubscribe linux-ide" in
>>the body of a message to majordomo@vger.kernel.org
>>More majordomo info at  http://vger.kernel.org/majordomo-info.html
>>
>
>-
>To unsubscribe from this list: send the line "unsubscribe linux-ide" in
>the body of a message to majordomo@vger.kernel.org
>More majordomo info at  http://vger.kernel.org/majordomo-info.html
>


^ permalink raw reply	[flat|nested] 5+ messages in thread

* Re: excess timeouts accessing pci-sata card both ports
  2008-01-24 23:55     ` drtyc
@ 2008-02-02  5:11       ` Tejun Heo
  2008-03-16  0:19         ` drtyc
  0 siblings, 1 reply; 5+ messages in thread
From: Tejun Heo @ 2008-02-02  5:11 UTC (permalink / raw)
  To: drtyc; +Cc: linux-ide

drtyc@centrum.cz wrote:
> Removed 3 drives. Both data and power.
> Left only port1 connected
> It's the drive and power cable that in the first test was port2 failing
> and in second test was port1 and ok
> both cards plugged in and initialized.
> third test it's the port1 alone sda working ok
> fourth test it's the port2 alone sda failing.
> 
> any idea what's wrong as this does not seem to be power related problem.
> 
> vanilla 2.6.23.14
> sata_via module... details in the inlined emails.
> 
> (4th test config)
> ata1: SATA link down (SStatus 0 SControl 310)
> ata2: SATA link up 1.5 Gbps (SStatus 113 SControl 310)
> ata4: SATA link down (SStatus 0 SControl 310)
> ata5: SATA link down (SStatus 0 SControl 310)
> 
> Faulty card? Both cards? Driver bug? Or design bug/incompatibility on second port?

It seems like you're experiencing transmission problems on reads.
SError value of 0x3000400 is Protocol Error, Link Sequence Error and
Transport State Transition Error.  Hardresetting the link should usually
recover from such conditions but error handling on via has never been
reliable.  How easily can you trigger the problem?

Thanks.

-- 
tejun

^ permalink raw reply	[flat|nested] 5+ messages in thread

* Re: excess timeouts accessing pci-sata card both ports
  2008-02-02  5:11       ` Tejun Heo
@ 2008-03-16  0:19         ` drtyc
  0 siblings, 0 replies; 5+ messages in thread
From: drtyc @ 2008-03-16  0:19 UTC (permalink / raw)
  To: htejun, drtyc; +Cc: linux-ide

Hi.

Reproducible with only one disk and one card on one SATA port.
The card has 3 ports. 2 internal, 1 external. The internal closer to the external and the extrenal has the problem.

Just doing cat /dev/disk > /dev/null
or any intensive IO - it happens in less then aprox 30sec.

Or setting raid speed min and max to some high number and do a resync with multiple disks can trigger similar write error.
Anyway got already 6 different cards and all behave similarly plus one of the internal ports is rock solid while the other has problems so I take it as falty design and RMA hoprfully last time now to legaly request money back.
______________________________________________________________
> Od: htejun@gmail.com
> Komu: drtyc@centrum.cz
> CC: linux-ide@vger.kernel.org
> Datum: 02.02.2008 06:11
> Předmět: Re: excess timeouts accessing pci-sata card both ports
>
>drtyc@centrum.cz wrote:
>> Removed 3 drives. Both data and power.
>> Left only port1 connected
>> It's the drive and power cable that in the first test was port2 failing
>> and in second test was port1 and ok
>> both cards plugged in and initialized.
>> third test it's the port1 alone sda working ok
>> fourth test it's the port2 alone sda failing.
>> 
>> any idea what's wrong as this does not seem to be power related
problem.
>> 
>> vanilla 2.6.23.14
>> sata_via module... details in the inlined emails.
>> 
>> (4th test config)
>> ata1: SATA link down (SStatus 0 SControl 310)
>> ata2: SATA link up 1.5 Gbps (SStatus 113 SControl 310)
>> ata4: SATA link down (SStatus 0 SControl 310)
>> ata5: SATA link down (SStatus 0 SControl 310)
>> 
>> Faulty card? Both cards? Driver bug? Or design bug/incompatibility on
second port?
>
>It seems like you're experiencing transmission problems on reads.
>SError value of 0x3000400 is Protocol Error, Link Sequence Error and
>Transport State Transition Error.  Hardresetting the link should usually
>recover from such conditions but error handling on via has never been
>reliable.  How easily can you trigger the problem?
>
>Thanks.
>
>-- 
>tejun
>


^ permalink raw reply	[flat|nested] 5+ messages in thread

end of thread, other threads:[~2008-03-16  2:00 UTC | newest]

Thread overview: 5+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2008-01-24  8:19 excess timeouts accessing pci-sata card both ports drtyc
2008-01-24 22:59 ` drtyc
     [not found]   ` <200801250037.4195@centrum.cz>
2008-01-24 23:55     ` drtyc
2008-02-02  5:11       ` Tejun Heo
2008-03-16  0:19         ` drtyc

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