On Tue, May 01, 2007 at 06:32:07AM +0200, Tejun Heo wrote: > [cc'ing linux-ide and Albert, Hi!] And be sure to keep me in CC, I'm not on any of these lists. > William Thompson wrote: > > On Mon, Apr 30, 2007 at 12:22:21PM +0200, Tejun Heo wrote: > >> William Thompson wrote: > >>> I've been playing with libata on a few machines and I found that this machine > >>> (An old Dell Dimension L866r) gives me this when it loads and does not give me > >>> access to the cdrom. This is the only machine that I've tested that I know > >>> for a fact cannot do DMA on the cdrom. I searched and noticed a similar > >>> problem with 2.6.19-rc versions but I'm not sure if it's the same problem. > >>> > >>> dmesg output: > >>> libata version 2.00 loaded. > >>> ata_piix 0000:00:1f.1: version 2.00ac7 > >>> PCI: Setting latency timer of device 0000:00:1f.1 to 64 > >>> ata1: PATA max UDMA/66 cmd 0x1F0 ctl 0x3F6 bmdma 0xFFA0 irq 14 > >>> ata2: PATA max UDMA/66 cmd 0x170 ctl 0x376 bmdma 0xFFA8 irq 15 > >>> scsi0 : ata_piix > >>> ata1.00: ATA-4, max UDMA/33, 10018890 sectors: LBA > >>> ata1.00: ata1: dev 0 multi count 16 > >>> ata1.00: configured for UDMA/33 > >>> scsi1 : ata_piix > >>> ata2.00: failed to IDENTIFY (I/O error, err_mask=0x1) > >> Hmm... IDENTIFY failed on the second port. How reproducible is the > >> problem? Every time? Does it work with the IDE driver? If so, please > >> post the result of 'hdparm -I /dev/hdX'. > > > > Reproducible? Everytime > > > > Yes, it works fine with the IDE driver, so long as DMA is disabled. > > > > hdparm -I: > > /dev/hdc: > > > > ATAPI CD-ROM, with removable media > > Model Number: Lite-On LTN483S 48x Max > > Serial Number: > > Firmware Revision: PD02 > > Standards: > > Used: ATAPI for CD-ROMs, SFF-8020i, r2.5 > > Supported: CD-ROM ATAPI-1 > > Configuration: > > DRQ response: <=10ms with INTRQ > > Packet size: 12 bytes > > Capabilities: > > LBA, IORDY(can be disabled) > > DMA: sdma0 sdma1 sdma2 mdma0 mdma1 mdma2 udma0 udma1 *udma2 > > Cycle time: min=120ns recommended=120ns > > PIO: pio0 pio1 pio2 pio3 pio4 > > Cycle time: no flow control=120ns IORDY flow control=120ns > > The err_mask is AC_ERR_DEV indicating that the device raised aborted the > IDENTIFY command. I wonder what's going on. FYI: This did work with ide-scsi. But I don't think that really matters. > Can you change "#undef ATA_DEBUG" in include/linux/libata.h to "#define > ATA_DEBUG" and report the resulting dmesg? There will be a LOT of > messages so you probably want to increase printk buffer size and detach > other devices if possible. It would be best if your root device isn't > driven by libata so that you can just insert the module and store the > resulting dmesg. Yes, definately. The system is a generic system bootable from usb, cdrom, or network. It's not installed on the local hard disk. The following is a diff between before loading any libata modules and after loading ata_piix. --- noata 2007-05-01 08:04:00.207711900 +0000 +++ libata-atapiix 2007-05-01 08:04:33.398212573 +0000 @@ -180,3 +180,162 @@ logips2pp: Detected unknown logitech mouse model 90 input: ImExPS/2 Logitech Explorer Mouse as /class/input/input1 eth0: setting full-duplex. +libata version 2.00 loaded. +piix_init: pci_register_driver +ata_piix 0000:00:1f.1: version 2.00ac7 +ata_pci_init_one: ENTER +PCI: Setting latency timer of device 0000:00:1f.1 to 64 +ata_device_add: ENTER +ata_port_add: ENTER +ata_port_start: prd alloc, virt cd0f3000, dma d0f3000 +ata1: PATA max UDMA/66 cmd 0x1F0 ctl 0x3F6 bmdma 0xFFA0 irq 14 +__ata_port_freeze: ata1 port frozen +ata_port_add: ENTER +ata_port_start: prd alloc, virt cd0eb000, dma d0eb000 +ata2: PATA max UDMA/66 cmd 0x170 ctl 0x376 bmdma 0xFFA8 irq 15 +__ata_port_freeze: ata2 port frozen +ata_device_add: probe begin +scsi1 : ata_piix +ata_port_schedule_eh: port EH scheduled +ata_scsi_error: ENTER +ata_port_flush_task: ENTER +ata_port_flush_task: flush #1 +ata1: ata_port_flush_task: flush #2 +ata1: ata_port_flush_task: EXIT +ata_eh_autopsy: ENTER +ata_eh_recover: ENTER +ata_eh_prep_resume: ENTER +ata_eh_prep_resume: EXIT +__ata_port_freeze: ata1 port frozen +ata_std_softreset: ENTER +ata_std_softreset: about to softreset, devmask=3 +ata_bus_softreset: ata1: bus reset via SRST +ata_dev_classify: found ATA device by sig +ata_dev_classify: found ATA device by sig +ata_std_softreset: EXIT, classes[0]=1 [1]=5 +ata_std_postreset: ENTER +ata_std_postreset: EXIT +ata_eh_thaw_port: ata1 port thawed +ata_eh_revalidate_and_attach: ENTER +ata1.00: ata_dev_read_id: ENTER, host 1, dev 0 +ata_exec_command_pio: ata1: cmd 0xEC +ata_hsm_move: ata1: protocol 2 task_state 1 (dev_stat 0x58) +ata_pio_sector: data read +ata_hsm_move: ata1: protocol 2 task_state 2 (dev_stat 0x50) +ata_hsm_move: ata1: dev 0 command complete, drv_stat 0x50 +ata_port_flush_task: ENTER +ata_port_flush_task: flush #1 +ata1: ata_port_flush_task: flush #2 +ata1: ata_port_flush_task: EXIT +ata1.00: ATA-4, max UDMA/33, 10018890 sectors: LBA +ata1.00: ata1: dev 0 multi count 16 +ata_eh_revalidate_and_attach: EXIT +ata_eh_resume: ENTER +ata_eh_resume: EXIT +ata_dev_set_xfermode: set features - xfer mode +ata_exec_command_pio: ata1: cmd 0xEF +ata_hsm_move: ata1: protocol 1 task_state 2 (dev_stat 0x50) +ata_hsm_move: ata1: dev 0 command complete, drv_stat 0x50 +ata_port_flush_task: ENTER +ata_port_flush_task: flush #1 +ata1: ata_port_flush_task: flush #2 +ata1: ata_port_flush_task: EXIT +ata_dev_set_xfermode: EXIT, err_mask=0 +ata1.00: ata_dev_read_id: ENTER, host 1, dev 0 +ata_exec_command_pio: ata1: cmd 0xEC +ata_hsm_move: ata1: protocol 2 task_state 1 (dev_stat 0x58) +ata_pio_sector: data read +ata_hsm_move: ata1: protocol 2 task_state 2 (dev_stat 0x50) +ata_hsm_move: ata1: dev 0 command complete, drv_stat 0x50 +ata_port_flush_task: ENTER +ata_port_flush_task: flush #1 +ata1: ata_port_flush_task: flush #2 +ata1: ata_port_flush_task: EXIT +ata_dev_set_mode: xfer_shift=12, xfer_mode=0x42 +ata1.00: configured for UDMA/33 +ata_eh_suspend: ENTER +ata_eh_suspend: EXIT +ata_eh_recover: EXIT, rc=0 +ata_scsi_error: EXIT +scsi2 : ata_piix +ata_port_schedule_eh: port EH scheduled +ata_scsi_error: ENTER +ata_port_flush_task: ENTER +ata_port_flush_task: flush #1 +ata2: ata_port_flush_task: flush #2 +ata2: ata_port_flush_task: EXIT +ata_eh_autopsy: ENTER +ata_eh_recover: ENTER +ata_eh_prep_resume: ENTER +ata_eh_prep_resume: EXIT +__ata_port_freeze: ata2 port frozen +ata_std_softreset: ENTER +ata_std_softreset: about to softreset, devmask=1 +ata_bus_softreset: ata2: bus reset via SRST +ata_dev_classify: found ATA device by sig +ata_dev_classify: unknown device +ata_std_softreset: EXIT, classes[0]=1 [1]=5 +ata_std_postreset: ENTER +ata_std_postreset: EXIT +ata_eh_thaw_port: ata2 port thawed +ata_eh_revalidate_and_attach: ENTER +ata2.00: ata_dev_read_id: ENTER, host 2, dev 0 +ata_exec_command_pio: ata2: cmd 0xEC +ata_hsm_move: ata2: protocol 2 task_state 1 (dev_stat 0x51) +ata_hsm_move: ata2: protocol 2 task_state 3 (dev_stat 0x51) +ata_port_flush_task: ENTER +ata_port_flush_task: flush #1 +ata2: ata_port_flush_task: flush #2 +ata2: ata_port_flush_task: EXIT +ata2.00: failed to IDENTIFY (I/O error, err_mask=0x1) +ata_eh_revalidate_and_attach: EXIT +ata_eh_prep_resume: ENTER +ata_eh_prep_resume: EXIT +__ata_port_freeze: ata2 port frozen +ata_std_softreset: ENTER +ata_std_softreset: about to softreset, devmask=1 +ata_bus_softreset: ata2: bus reset via SRST +ata_dev_classify: unknown device +ata_std_softreset: EXIT, classes[0]=5 [1]=5 +ata_std_postreset: ENTER +ata_std_postreset: EXIT, no device +ata_eh_thaw_port: ata2 port thawed +ata_eh_revalidate_and_attach: ENTER +ata_eh_revalidate_and_attach: EXIT +ata_eh_resume: ENTER +ata_eh_resume: EXIT +ata_eh_suspend: ENTER +ata_eh_suspend: EXIT +ata_eh_recover: EXIT, rc=0 +ata_scsi_error: EXIT +ata_device_add: host probe begin +ata_scsi_dump_cdb: CDB (1:0,0,0) 12 00 00 00 24 00 00 00 00 +ata_scsi_dump_cdb: CDB (1:0,0,0) 12 00 00 00 60 00 00 00 00 +scsi 1:0:0:0: Direct-Access ATA QUANTUM FIREBALL A08. PQ: 0 ANSI: 5 +ata_scsi_dump_cdb: CDB (1:0,0,0) 00 00 00 00 00 00 00 00 00 +ata_scsi_dump_cdb: CDB (1:0,0,0) 25 00 00 00 00 00 00 00 00 +SCSI device sdb: 10018890 512-byte hdwr sectors (5130 MB) +ata_scsi_dump_cdb: CDB (1:0,0,0) 5a 00 3f 00 00 00 00 00 08 +sdb: Write Protect is off +sdb: Mode Sense: 00 3a 00 00 +ata_scsi_dump_cdb: CDB (1:0,0,0) 5a 00 08 00 00 00 00 00 08 +ata_scsi_dump_cdb: CDB (1:0,0,0) 5a 00 08 00 00 00 00 00 24 +SCSI device sdb: write cache: enabled, read cache: enabled, doesn't support DPO or FUA +ata_scsi_dump_cdb: CDB (1:0,0,0) 00 00 00 00 00 00 00 00 24 +ata_scsi_dump_cdb: CDB (1:0,0,0) 25 00 00 00 00 00 00 00 00 +SCSI device sdb: 10018890 512-byte hdwr sectors (5130 MB) +ata_scsi_dump_cdb: CDB (1:0,0,0) 5a 00 3f 00 00 00 00 00 08 +sdb: Write Protect is off +sdb: Mode Sense: 00 3a 00 00 +ata_scsi_dump_cdb: CDB (1:0,0,0) 5a 00 08 00 00 00 00 00 08 +ata_scsi_dump_cdb: CDB (1:0,0,0) 5a 00 08 00 00 00 00 00 24 +SCSI device sdb: write cache: enabled, read cache: enabled, doesn't support DPO or FUA + sdb:<3>ata_scsi_dump_cdb: CDB (1:0,0,0) 28 00 00 00 00 00 00 00 08 +ata_sg_setup: 1 sg elements mapped +ata_exec_command_pio: ata1: cmd 0xC8 +ata_hsm_move: ata1: protocol 3 task_state 2 (dev_stat 0x50) +ata_hsm_move: ata1: dev 0 command complete, drv_stat 0x50 + sdb1 +sd 1:0:0:0: Attached scsi disk sdb +sd 1:0:0:0: Attached scsi generic sg1 type 0 +piix_init: done - 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
