Hello, I have and laptop with an ICH6M SATA Controller and an Hitachi hard drive. While it worked well using the ahci module and with NCQ enabled using Linux 2.6.20, it does not work anymore (hang at boot) with 2.6.21-rc* My drive is among those that were recently blacklisted (see lkml post "[PATCH] libata: add NCQ blacklist entries from Silicon Image Windowsdriver) (Model Number: HTS541010G9SA00 and Firmware Revision: MBZOC60D) This blacklisting patch is in -mm now. So there is probably a drive related issue here, I'm just wondering why it just work flawlessly with a 2.6.20... Relevant part of kernel log: 2.6.20: [ 41.076963] SCSI subsystem initialized [ 41.083119] ACPI: PCI Interrupt 0000:00:1f.2[B] -> GSI 19 (level, low) -> IRQ 19 [ 42.083637] ahci 0000:00:1f.2: AHCI 0001.0000 32 slots 4 ports 1.5 Gbps 0x5 impl IDE mode [ 42.083695] ahci 0000:00:1f.2: flags: 64bit ncq pm led slum part [ 42.083825] ata1: SATA max UDMA/133 cmd 0xF8872D00 ctl 0x0 bmdma 0x0 irq 19 [ 42.083938] ata2: SATA max UDMA/133 cmd 0xF8872D80 ctl 0x0 bmdma 0x0 irq 19 [ 42.084049] ata3: SATA max UDMA/133 cmd 0xF8872E00 ctl 0x0 bmdma 0x0 irq 19 [ 42.084165] ata4: SATA max UDMA/133 cmd 0xF8872E80 ctl 0x0 bmdma 0x0 irq 19 [ 42.084221] scsi0 : ahci [ 42.541356] ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 300) [ 42.542404] ata1.00: ATA-7, max UDMA/100, 195371568 sectors: LBA48 NCQ (depth 31/32) [ 42.542460] ata1.00: ata1: dev 0 multi count 0 [ 42.543731] ata1.00: configured for UDMA/100 [ 42.543781] scsi1 : ahci [ 42.846169] ata2: SATA link down (SStatus 0 SControl 0) [ 42.846223] scsi2 : ahci [ 43.148995] ata3: SATA link down (SStatus 0 SControl 300) [ 43.149049] scsi3 : ahci [ 43.451821] ata4: SATA link down (SStatus 0 SControl 0) [ 43.451957] scsi 0:0:0:0: Direct-Access ATA HTS541010G9SA00 MBZO PQ: 0 ANSI: 5 [ 43.487465] SCSI device sda: 195371568 512-byte hdwr sectors (100030 MB) [ 43.487544] sda: Write Protect is off [ 43.487810] SCSI device sda: write cache: enabled, read cache: enabled, doesn't support DPO or FUA [ 43.488805] SCSI device sda: 195371568 512-byte hdwr sectors (100030 MB) [ 43.488879] sda: Write Protect is off [ 43.489462] SCSI device sda: write cache: enabled, read cache: enabled, doesn't support DPO or FUA 2.6.21-rc1: [ 14.580991] SCSI subsystem initialized [ 14.586026] ACPI: PCI Interrupt 0000:00:1f.2[B] -> GSI 19 (level, low) -> IRQ 19 [ 15.586790] ahci 0000:00:1f.2: AHCI 0001.0000 32 slots 4 ports 1.5 Gbps 0x5 impl IDE mode [ 15.586847] ahci 0000:00:1f.2: flags: 64bit ncq pm led slum part [ 15.586974] ata1: SATA max UDMA/133 cmd 0xf8824d00 ctl 0x00000000 bmdma 0x00000000 irq 19 [ 15.587093] ata2: SATA max UDMA/133 cmd 0xf8824d80 ctl 0x00000000 bmdma 0x00000000 irq 19 [ 15.587211] ata3: SATA max UDMA/133 cmd 0xf8824e00 ctl 0x00000000 bmdma 0x00000000 irq 19 [ 15.587331] ata4: SATA max UDMA/133 cmd 0xf8824e80 ctl 0x00000000 bmdma 0x00000000 irq 19 [ 15.587394] scsi0 : ahci [ 16.044663] ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 300) [ 16.089475] ata1.00: ATA-7: HTS541010G9SA00, MBZOC60D, max UDMA/100 [ 16.089525] ata1.00: 195371568 sectors, multi 0: LBA48 NCQ (depth 31/32) [ 16.091804] ata1.00: configured for UDMA/100 [ 16.091855] scsi1 : ahci [ 16.394567] ata2: SATA link down (SStatus 0 SControl 0) [ 16.394620] scsi2 : ahci [ 16.697494] ata3: SATA link down (SStatus 0 SControl 300) [ 16.697547] scsi3 : ahci [ 17.000422] ata4: SATA link down (SStatus 0 SControl 0) [ 17.000552] scsi 0:0:0:0: Direct-Access ATA HTS541010G9SA00 MBZO PQ: 0 ANSI: 5 [....] [ 18.151756] SCSI device sda: write cache: enabled, read cache: enabled, doesn't support DPO or FUA [ 18.151856] SCSI device sda: 195371568 512-byte hdwr sectors (100030 MB) [ 18.151911] sda: Write Protect is off [ 18.151977] SCSI device sda: write cache: enabled, read cache: enabled, doesn't support DPO or FUA [....] [ 48.143940] ata1.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x2 frozen [ 48.143999] ata1.00: cmd 60/08:00:00:00:00/00:00:00:00:00/40 tag 0 cdb 0x0 data 4096 in [ 48.144000] res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout) [ 48.446854] ata1: soft resetting port [ 48.601835] ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 300) [ 48.607218] ata1.00: configured for UDMA/100 [ 48.607272] ata1: EH complete [ 48.607355] SCSI device sda: 195371568 512-byte hdwr sectors (100030 MB) [ 48.607411] sda: Write Protect is off [ 48.607478] SCSI device sda: write cache: enabled, read cache: enabled, doesn't support DPO or FUA [ 78.599605] ata1.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x2 frozen [ 78.599659] ata1.00: cmd 60/08:00:00:00:00/00:00:00:00:00/40 tag 0 cdb 0x0 data 4096 in [ 78.599661] res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout) [ 78.902526] ata1: soft resetting port [ 79.057505] ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 300) [ 79.062836] ata1.00: configured for UDMA/100 [ 79.062887] ata1: EH complete [ 79.062957] SCSI device sda: 195371568 512-byte hdwr sectors (100030 MB) [ 79.063011] sda: Write Protect is off [ 79.063077] SCSI device sda: write cache: enabled, read cache: enabled, doesn't support DPO or FUA [ 109.055268] ata1.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x2 frozen [ 109.055324] ata1.00: cmd 60/08:00:00:00:00/00:00:00:00:00/40 tag 0 cdb 0x0 data 4096 in [ 109.055325] res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout) [ 109.358190] ata1: soft resetting port [ 109.513168] ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 300) [ 109.518528] ata1.00: configured for UDMA/100 [ 109.518579] ata1: EH complete [ 109.518648] SCSI device sda: 195371568 512-byte hdwr sectors (100030 MB) [ 109.518703] sda: Write Protect is off [ 109.518769] SCSI device sda: write cache: enabled, read cache: enabled, doesn't support DPO or FUA [looping forever with this error] Thanks. (Please CC me) -- Mathieu Bérard - 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
