From mboxrd@z Thu Jan 1 00:00:00 1970 From: Subject: Re: excess timeouts accessing pci-sata card both ports Date: Thu, 24 Jan 2008 23:59:12 +0100 Message-ID: <200801242359.10655@centrum.cz> References: <200801240919.2173@centrum.cz> Mime-Version: 1.0 Content-Type: text/plain; charset=windows-1250 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: Received: from mail1011.centrum.cz ([213.29.7.122]:43803 "EHLO mail1011.centrum.cz" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752156AbYAXW72 (ORCPT ); Thu, 24 Jan 2008 17:59:28 -0500 Received: by mail1011.centrum.cz id S537160850AbYAXW7M (ORCPT ); Thu, 24 Jan 2008 23:59:12 +0100 In-Reply-To: <200801240919.2173@centrum.cz> Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: linux-ide@vger.kernel.org Hi. More through test revealed that only the second port of each card is fa= iling. Accessing (cat /dev/sdX > /dev/null) just the sdb or sdd alone =3D 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 elimin= ate defective power cable to sdd. (ata3 and 6 are not connected PATA ports on each card) =46ailing is again port 2 and port 5 which is now originally flawlessly= working drives now failing. ______________________________________________________________ > Od: drtyc@centrum.cz > Komu: > Datum: 24.01.2008 09:27 > P=F8edm=ECt: 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 wit= h timeout and port is disabled > >logged error command at the initial problem (is it DMA read ext and DM= A 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 49= 152 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=3D-16), forcing hardreset >ata2: hard resetting port >ata2: port is slow to respond, please be patient (Status 0x80) >ata2: COMRESET failed (errno=3D-16) >ata2: hard resetting port >ata2: port is slow to respond, please be patient (Status 0x80) >ata2: COMRESET failed (errno=3D-16) >ata2: hard resetting port >ata2: port is slow to respond, please be patient (Status 0x80) >ata2: COMRESET failed (errno=3D-16) >ata2: hard resetting port >ata2: COMRESET failed (errno=3D-16) >ata2: reset failed, giving up >ata2.00: disabled >ata2: EH complete >sd 1:0:0:0: [sdb] Result: hostbyte=3D0x04 driverbyte=3D0x00 > >tried does not work: >- multiply the ATA_TMOUT values by 10 and later by 100 against vanilla= =20 >- 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, l= ow) -> 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, l= ow) -> 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=3Dmedium >TAb= ort- SERR- Latency: 32 > Interrupt: pin A routed to IRQ 11 > Region 0: I/O ports at b800 [size=3D16] > Region 1: I/O ports at b400 [size=3D16] > Region 2: I/O ports at b000 [size=3D16] > Region 3: I/O ports at a800 [size=3D16] > Region 4: I/O ports at a400 [size=3D32] > Region 5: I/O ports at a000 [size=3D256] > [virtual] Expansion ROM at 30100000 [disabled] [size=3D64K] > Capabilities: [e0] Power Management version 2 > Flags: PMEClk- DSI- D1- D2- AuxCurrent=3D0mA PME(D0-,D1-,D2-,D3hot-,D3cold-) > Status: D0 PME-Enable- DSel=3D0 DScale=3D0 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=3Dmedium >TAb= ort- SERR- Latency: 32 > Interrupt: pin A routed to IRQ 10 > Region 0: I/O ports at 9800 [size=3D16] > Region 1: I/O ports at 9400 [size=3D16] > Region 2: I/O ports at 9000 [size=3D16] > Region 3: I/O ports at 8800 [size=3D16] > Region 4: I/O ports at 8400 [size=3D32] > Region 5: I/O ports at 8000 [size=3D256] > [virtual] Expansion ROM at 30110000 [disabled] [size=3D64K] > Capabilities: [e0] Power Management version 2 > Flags: PMEClk- DSI- D1- D2- AuxCurrent=3D0mA PME(D0-,D1-,D2-,D3hot-,D3cold-) > Status: D0 PME-Enable- DSel=3D0 DScale=3D0 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 th= is correct and where should I start looking for the port to pci slot mappi= ng to group ports and where to add some kind of locking - first/second por= t. (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" i= n >the body of a message to majordomo@vger.kernel.org >More majordomo info at http://vger.kernel.org/majordomo-info.html >