On Fri, Jan 15, 2010 at 3:43 PM, Krzysztof Halasa <khc@xxxxxxxxx> wrote: > Robert Hancock <hancockrwd@xxxxxxxxx> writes: > >> It would be interesting to see what happens if you actually plug >> something into that port that's having the issues, and see what >> happens. I'm kind of inclined to suspect it's a hardware fault, though >> it would likely require a report from someone else with the same or >> similar board model to confirm that.. > > 2.6.32.3 with the patch disabling JMB363 and "catch all AHCI" applied. > Nothing connected to SATA, only PATA in use. > > I understand the following doesn't set the AHCI_HFLAG_IGN_IRQ_IF_ERR > and thus doesn't ignore PORT_IRQ_IF_ERR, but the latter doesn't seem to > be set. > > # echo -n 197b 2363 > new_id > > ahci 0000:02:00.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16 > ahci 0000:02:00.0: AHCI 0001.0000 32 slots 2 ports 3 Gbps 0x3 impl SATA mode > ahci 0000:02:00.0: flags: 64bit ncq pm led clo pmp pio slum part > ahci 0000:02:00.0: setting latency timer to 64 > scsi9 : ahci > scsi10 : ahci > ata9: SATA max UDMA/133 abar m8192@0xfe9fe000 port 0xfe9fe100 irq 16 > ata10: SATA max UDMA/133 abar m8192@0xfe9fe000 port 0xfe9fe180 irq 16 > ata10: SATA link down (SStatus 0 SControl 300) > ata9: SATA link down (SStatus 0 SControl 300) > > ata10: exception Emask 0x10 SAct 0x0 SErr 0x4040000 action 0xe frozen > ata10: irq_stat 0x00000040, connection status changed > ata10: SError: { CommWake DevExch } > ata10: hard resetting link > ata10: SATA link down (SStatus 0 SControl 300) > ata10: EH complete > ata10: exception Emask 0x10 SAct 0x0 SErr 0x4040000 action 0xe frozen > ata10: irq_stat 0x00000040, connection status changed > ata10: SError: { CommWake DevExch } > ata10: limiting SATA link speed to 1.5 Gbps > ata10: hard resetting link > ata10: SATA link down (SStatus 0 SControl 310) > ata10: EH complete > ... > > sometimes the two lines become: > > ata10: exception Emask 0x10 SAct 0x0 SErr 0x4060000 action 0xe frozen > ata10: SError: { PHYInt CommWake DevExch } > > Now plugging something into the mb connector (1.5 Gbps device, the same > which my VT6421A-based miniPCI card doesn't like): > > ata10: exception Emask 0x10 SAct 0x0 SErr 0x4050000 action 0xe frozen > ata10: irq_stat 0x00400040, connection status changed > ata10: SError: { PHYRdyChg CommWake DevExch } > ata10: hard resetting link > ata10: SATA link up 1.5 Gbps (SStatus 113 SControl 300) > ata10.00: ATA-7: Kingston SSDNow V Series 64GB, B090428a, max UDMA/100 > ata10.00: 125045424 sectors, multi 1: LBA > ata10.00: configured for UDMA/100 > ata10: EH complete > scsi 10:0:0:0: Direct-Access ATA Kingston SSDNow B090 PQ: 0 ANSI: 5 > sd 10:0:0:0: Attached scsi generic sg8 type 0 > sd 10:0:0:0: [sdh] 125045424 512-byte logical blocks: (64.0 GB/59.6 GiB) > sd 10:0:0:0: [sdh] Write Protect is off > sd 10:0:0:0: [sdh] Mode Sense: 00 3a 00 00 > sd 10:0:0:0: [sdh] Write cache: disabled, read cache: enabled, doesn't support DPO or FUA > sd 10:0:0:0: [sdh] Attached SCSI disk > > Absolutely no problems with fs access, expected linear transfer speed > etc. > > Well, let's unplug it. Power down first: > > ata10: exception Emask 0x10 SAct 0x0 SErr 0x990000 action 0xe frozen > ata10: irq_stat 0x00400000, PHY RDY changed > ata10: SError: { PHYRdyChg 10B8B Dispar LinkSeq } > ata10: hard resetting link > ata10: SATA link down (SStatus 0 SControl 300) > ata10: hard resetting link > ata10: SATA link down (SStatus 0 SControl 300) > ata10: limiting SATA link speed to 1.5 Gbps > ata10: hard resetting link > ata10: SATA link down (SStatus 0 SControl 310) > ata10.00: disabled > ata10: EH complete > ata10.00: detaching (SCSI 10:0:0:0) > sd 10:0:0:0: [sdh] Stopping disk > sd 10:0:0:0: [sdh] START_STOP FAILED > sd 10:0:0:0: [sdh] Result: hostbyte=DID_BAD_TARGET driverbyte=DRIVER_OK > > Seems stable at this point, no additional messages. > > Then removing the plug from (unpowered) SSD - IRQs start appearing again > every few seconds. Mostly: > > ata10: exception Emask 0x10 SAct 0x0 SErr 0x4000000 action 0xe frozen > ata10: irq_stat 0x00000040, connection status changed > ata10: SError: { DevExch } > ata10: limiting SATA link speed to 1.5 Gbps > ata10: hard resetting link > ata10: SATA link down (SStatus 0 SControl 310) > ata10: EH complete > > sometimes SErr 0x4060000 and 0x4040000 > > Fine, so let's connect it again (device still not powered): > Messages stopped. > > Disconnected again, messages started, reconnected, stopped. > > Am I to use the SSD as a passive SATA terminator? > > Any further ideas welcome :-) Hmm.. From those test results I really suspect some kind of hardware fault. Could be a defective motherboard - I don't know if that chip needs any terminating resistors on the motherboard for the SATA signal lines or something, if so, could be they weren't installed properly.. -- To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html