(Please cc me on replies) I have three samsung hdds (/sys/block/sda/device/model says SAMSUNG SP2504C) in a raid configuration. My system frequently (2-3x/day) experiences temporary lockups, which produce messages as below in my dmesg/syslog. The system recovers, but the hang is annoying to say the least.
All three drives are connected to sata_nv ports. Oddly, it almost always happens on ata6 or ata7 (the second and third ports of that 4 port setup on my motherboard). There is an identical drive connected at ata5, but I've only once or twice seen it hit that drive. Googling around lkml.org, I found a few threads investigating what look like very similar problems, some of which never seemed to find the solution, but one of which came up with a fairly quick answer it seemed, namely that the drive's NCQ implementation was horked: http://lkml.org/lkml/2007/4/18/32 While I don't have older logs to verify exactly when this started, it was fairly recent, perhaps around my 2.6.20.1 to 2.6.21.1 kernel upgrade. Any other info or tests I can provide/run to help? Syslog snippet: Jun 21 10:35:23 cheetah kernel: ata6: EH in ADMA mode, notifier 0x0 notifier_error 0x0 gen_ctl 0x1501000 status 0x400 next cpb count 0x0 next cpb idx 0x0 Jun 21 10:35:24 cheetah kernel: ata6: CPB 0: ctl_flags 0x9, resp_flags 0x0 Jun 21 10:35:24 cheetah kernel: ata6: timeout waiting for ADMA IDLE, stat=0x400 Jun 21 10:35:24 cheetah kernel: ata6: timeout waiting for ADMA LEGACY, stat=0x400 Jun 21 10:35:24 cheetah kernel: ata6.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2 frozen Jun 21 10:35:24 cheetah kernel: ata6.00: cmd ea/00:00:00:00:00/00:00:00:00:00/a0 tag 0 cdb 0x0 data 0 Jun 21 10:35:24 cheetah kernel: res 40/00:00:00:4f:c2/00:00:00:00:00/00 Emask 0x4 (timeout) Jun 21 10:35:24 cheetah kernel: ata6: soft resetting port Jun 21 10:35:24 cheetah kernel: ata6: SATA link up 3.0 Gbps (SStatus 123 SControl 300) Jun 21 10:35:24 cheetah kernel: ata6.00: configured for UDMA/133 Jun 21 10:35:24 cheetah kernel: ata6: EH complete Jun 21 10:35:24 cheetah kernel: SCSI device sdb: 488397168 512-byte hdwr sectors (250059 MB) Jun 21 10:35:24 cheetah kernel: sdb: Write Protect is off Jun 21 10:35:24 cheetah kernel: sdb: Mode Sense: 00 3a 00 00 Jun 21 10:35:24 cheetah kernel: SCSI device sdb: write cache: enabled, read cache: enabled, doesn't support DPO or FUA # lspci 00:00.0 Memory controller: nVidia Corporation CK804 Memory Controller (rev a3) 00:01.0 ISA bridge: nVidia Corporation CK804 ISA Bridge (rev a3) 00:01.1 SMBus: nVidia Corporation CK804 SMBus (rev a2) 00:02.0 USB Controller: nVidia Corporation CK804 USB Controller (rev a2) 00:02.1 USB Controller: nVidia Corporation CK804 USB Controller (rev a3) 00:04.0 Multimedia audio controller: nVidia Corporation CK804 AC'97 Audio Controller (rev a2) 00:06.0 IDE interface: nVidia Corporation CK804 IDE (rev f2) 00:07.0 IDE interface: nVidia Corporation CK804 Serial ATA Controller (rev f3) 00:08.0 IDE interface: nVidia Corporation CK804 Serial ATA Controller (rev f3) 00:09.0 PCI bridge: nVidia Corporation CK804 PCI Bridge (rev a2) 00:0a.0 Bridge: nVidia Corporation CK804 Ethernet Controller (rev a3) 00:0b.0 PCI bridge: nVidia Corporation CK804 PCIE Bridge (rev a3) 00:0c.0 PCI bridge: nVidia Corporation CK804 PCIE Bridge (rev a3) 00:0d.0 PCI bridge: nVidia Corporation CK804 PCIE Bridge (rev a3) 00:0e.0 PCI bridge: nVidia Corporation CK804 PCIE Bridge (rev a3) 00:18.0 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] HyperTransport Technology Configuration 00:18.1 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] Address Map 00:18.2 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] DRAM Controller 00:18.3 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] Miscellaneous Control 01:0c.0 FireWire (IEEE 1394): VIA Technologies, Inc. IEEE 1394 Host Controller (rev 80) 01:0d.0 RAID bus controller: Silicon Image, Inc. SiI 3114 [SATALink/SATARaid] Serial ATA Controller (rev 02) 03:00.0 Ethernet controller: Marvell Technology Group Ltd. 88E8053 PCI-E Gigabit Ethernet Controller (rev 15) 05:00.0 VGA compatible controller: nVidia Corporation NV43 [GeForce 6600 GT] (rev a2) -- -Cheetah "Reality is that which, when you stop believing in it, doesn't go away". -- Philip K. Dick GPG pubkey fingerprint: A57F B354 FD30 A502 795B 9637 3EF1 3F22 A85E 2AD1 - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
