Am Mit, den 26.11.2003 schrieb Alan Stern um 16:28: > Interesting. It shows everything working at first, and then the device > fails at the first large (>64 KB) read. > > Is this using the EHCI driver (is it a high-speed connection)? I've seen > problems similar to yours on systems where the EHCI driver was trying to > transfer data faster than the device could cope with.
Yes, it's using ehci driver at 480MBit/s. But it works with kernel 2.4.22! > > Can you try running exactly the same experiment (with usb-storage > debugging configured on) under 2.4.22? Comparing the two debugging logs > might provide some answers. Here is what dmesg shows (i loaded the modules and did a simple "fdisk -l /dev/sda"). usb.c: registered new driver usbdevfs usb.c: registered new driver hub PCI: Found IRQ 9 for device 02:0d.2 PCI: Sharing IRQ 9 with 00:1f.4 PCI: Sharing IRQ 9 with 02:0b.0 PCI: Sharing IRQ 9 with 02:0b.1 ehci_hcd 02:0d.2: PCI device 1106:3104 ehci_hcd 02:0d.2: irq 9, pci mem d4840000 usb.c: new USB bus registered, assigned bus number 1 ehci_hcd 02:0d.2: USB 2.0 enabled, EHCI 0.95, driver 2003-Jun-19/2.4 hub.c: USB hub found hub.c: 4 ports detected hub.c: new USB device 02:0d.2-1, assigned address 2 usb.c: USB device 2 (vend/prod 0x5e3/0x702) is not claimed by any active driver. usb-uhci.c: $Revision: 1.275 $ time 13:53:03 Nov 23 2003 usb-uhci.c: High bandwidth mode enabled PCI: Found IRQ 9 for device 00:1f.2 PCI: Setting latency timer of device 00:1f.2 to 64 usb-uhci.c: USB UHCI at I/O 0xa400, IRQ 9 usb-uhci.c: Detected 2 ports usb.c: new USB bus registered, assigned bus number 2 hub.c: USB hub found hub.c: 2 ports detected PCI: Found IRQ 9 for device 00:1f.4 PCI: Sharing IRQ 9 with 02:0b.0 PCI: Sharing IRQ 9 with 02:0b.1 PCI: Sharing IRQ 9 with 02:0d.2 PCI: Setting latency timer of device 00:1f.4 to 64 usb-uhci.c: USB UHCI at I/O 0xa000, IRQ 9 usb-uhci.c: Detected 2 ports usb.c: new USB bus registered, assigned bus number 3 hub.c: USB hub found hub.c: 2 ports detected PCI: Found IRQ 9 for device 02:0d.0 usb-uhci.c: USB UHCI at I/O 0xd400, IRQ 9 usb-uhci.c: Detected 2 ports usb.c: new USB bus registered, assigned bus number 4 hub.c: USB hub found hub.c: 2 ports detected PCI: Found IRQ 9 for device 02:0d.1 PCI: Sharing IRQ 9 with 02:0a.0 usb-uhci.c: USB UHCI at I/O 0xd000, IRQ 9 usb-uhci.c: Detected 2 ports usb.c: new USB bus registered, assigned bus number 5 hub.c: USB hub found hub.c: 2 ports detected usb-uhci.c: v1.275:USB Universal Host Controller Interface driver SCSI subsystem driver Revision: 1.00 Initializing USB Mass Storage driver... usb.c: registered new driver usb-storage usb-storage: act_altsettting is 0 usb-storage: id_index calculated to be: 73 usb-storage: Array length appears to be: 75 usb-storage: USB Mass Storage device detected usb-storage: Endpoints: In: 0xd37ad38c Out: 0xd37ad3a0 Int: 0x00000000 (Period 0) usb-storage: New GUID 05e307020000000000000000 usb-storage: GetMaxLUN command result is 1, data is 0 usb-storage: Transport: Bulk usb-storage: Protocol: Transparent SCSI usb-storage: *** thread sleeping. scsi0 : SCSI emulation for USB Mass Storage devices usb-storage: queuecommand() called usb-storage: *** thread awakened. usb-storage: Command INQUIRY (6 bytes) usb-storage: 12 00 00 00 ff 00 82 d3 ac 10 9d d2 usb-storage: Bulk command S 0x43425355 T 0x1 Trg 0 LUN 0 L 255 F 128 CL 6 usb-storage: Bulk command transfer result=0 usb-storage: usb_stor_transfer_partial(): xfer 255 bytes usb-storage: usb_stor_bulk_msg() returned 0 xferred 40/255 usb-storage: Bulk data transfer result 0x1 usb-storage: Attempting to get CSW... usb-storage: clearing endpoint halt for pipe 0xc0008280 usb-storage: usb_stor_clear_halt: result=0 usb-storage: Attempting to get CSW (2nd try)... usb-storage: Bulk status result = 0 usb-storage: Bulk status Sig 0x53425355 T 0x1 R 215 Stat 0x0 usb-storage: Fixing INQUIRY data to show SCSI rev 2 - was 0 usb-storage: scsi cmd done, result=0x0 usb-storage: *** thread sleeping. Vendor: ST360015 Model: A Rev: 0811 Type: Direct-Access ANSI SCSI revision: 02 usb-storage: queuecommand() called usb-storage: *** thread awakened. usb-storage: Bad target number (1/0) usb-storage: *** thread sleeping. usb-storage: queuecommand() called usb-storage: *** thread awakened. usb-storage: Bad target number (2/0) usb-storage: *** thread sleeping. usb-storage: queuecommand() called usb-storage: *** thread awakened. usb-storage: Bad target number (3/0) usb-storage: *** thread sleeping. usb-storage: queuecommand() called usb-storage: *** thread awakened. usb-storage: Bad target number (4/0) usb-storage: *** thread sleeping. usb-storage: queuecommand() called usb-storage: *** thread awakened. usb-storage: Bad target number (5/0) usb-storage: *** thread sleeping. usb-storage: queuecommand() called usb-storage: *** thread awakened. usb-storage: Bad target number (6/0) usb-storage: *** thread sleeping. usb-storage: queuecommand() called usb-storage: *** thread awakened. usb-storage: Bad target number (7/0) usb-storage: *** thread sleeping. Attached scsi disk sda at scsi0, channel 0, id 0, lun 0 usb-storage: queuecommand() called usb-storage: *** thread awakened. usb-storage: Command TEST_UNIT_READY (6 bytes) usb-storage: 00 00 00 00 00 00 00 00 00 00 00 00 usb-storage: Bulk command S 0x43425355 T 0x2 Trg 0 LUN 0 L 0 F 0 CL 6 usb-storage: Bulk command transfer result=0 usb-storage: Attempting to get CSW... usb-storage: Bulk status result = 0 usb-storage: Bulk status Sig 0x53425355 T 0x2 R 0 Stat 0x0 usb-storage: scsi cmd done, result=0x0 usb-storage: *** thread sleeping. usb-storage: queuecommand() called usb-storage: *** thread awakened. usb-storage: Command READ_CAPACITY (10 bytes) usb-storage: 25 00 00 00 00 00 00 00 00 00 00 00 usb-storage: Bulk command S 0x43425355 T 0x3 Trg 0 LUN 0 L 8 F 128 CL 10 usb-storage: Bulk command transfer result=0 usb-storage: usb_stor_transfer_partial(): xfer 8 bytes usb-storage: usb_stor_bulk_msg() returned 0 xferred 8/8 usb-storage: usb_stor_transfer_partial(): transfer complete usb-storage: Bulk data transfer result 0x0 usb-storage: Attempting to get CSW... usb-storage: Bulk status result = 0 usb-storage: Bulk status Sig 0x53425355 T 0x3 R 0 Stat 0x0 usb-storage: scsi cmd done, result=0x0 usb-storage: *** thread sleeping. SCSI device sda: 117231408 512-byte hdwr sectors (60022 MB) sda:<7>usb-storage: queuecommand() called usb-storage: *** thread awakened. usb-storage: Command READ_10 (10 bytes) usb-storage: 28 00 00 00 00 00 00 00 08 00 00 00 usb-storage: Bulk command S 0x43425355 T 0x4 Trg 0 LUN 0 L 4096 F 128 CL 10 usb-storage: Bulk command transfer result=0 usb-storage: usb_stor_transfer_partial(): xfer 4096 bytes usb-storage: usb_stor_bulk_msg() returned 0 xferred 4096/4096 usb-storage: usb_stor_transfer_partial(): transfer complete usb-storage: Bulk data transfer result 0x0 usb-storage: Attempting to get CSW... usb-storage: Bulk status result = 0 usb-storage: Bulk status Sig 0x53425355 T 0x4 R 0 Stat 0x0 usb-storage: scsi cmd done, result=0x0 usb-storage: *** thread sleeping. sda1 WARNING: USB Mass Storage data integrity not assured USB Mass Storage device found at 2 USB Mass Storage support registered. usb-storage: queuecommand() called usb-storage: *** thread awakened. usb-storage: Command READ_10 (10 bytes) usb-storage: 28 00 00 00 00 00 00 00 08 00 00 00 usb-storage: Bulk command S 0x43425355 T 0x5 Trg 0 LUN 0 L 4096 F 128 CL 10 usb-storage: Bulk command transfer result=0 usb-storage: usb_stor_transfer_partial(): xfer 4096 bytes usb-storage: usb_stor_bulk_msg() returned 0 xferred 4096/4096 usb-storage: usb_stor_transfer_partial(): transfer complete usb-storage: Bulk data transfer result 0x0 usb-storage: Attempting to get CSW... usb-storage: Bulk status result = 0 usb-storage: Bulk status Sig 0x53425355 T 0x5 R 0 Stat 0x0 usb-storage: scsi cmd done, result=0x0 usb-storage: *** thread sleeping. usb-storage: queuecommand() called usb-storage: *** thread awakened. usb-storage: Command READ_10 (10 bytes) usb-storage: 28 00 00 00 00 08 00 00 20 00 00 00 usb-storage: Bulk command S 0x43425355 T 0x6 Trg 0 LUN 0 L 16384 F 128 CL 10 usb-storage: Bulk command transfer result=0 usb-storage: usb_stor_transfer_partial(): xfer 4096 bytes usb-storage: usb_stor_bulk_msg() returned 0 xferred 4096/4096 usb-storage: usb_stor_transfer_partial(): transfer complete usb-storage: usb_stor_transfer_partial(): xfer 4096 bytes usb-storage: usb_stor_bulk_msg() returned 0 xferred 4096/4096 usb-storage: usb_stor_transfer_partial(): transfer complete usb-storage: usb_stor_transfer_partial(): xfer 4096 bytes usb-storage: usb_stor_bulk_msg() returned 0 xferred 4096/4096 usb-storage: usb_stor_transfer_partial(): transfer complete usb-storage: usb_stor_transfer_partial(): xfer 4096 bytes usb-storage: usb_stor_bulk_msg() returned 0 xferred 4096/4096 usb-storage: usb_stor_transfer_partial(): transfer complete usb-storage: Bulk data transfer result 0x0 usb-storage: Attempting to get CSW... usb-storage: Bulk status result = 0 usb-storage: Bulk status Sig 0x53425355 T 0x6 R 0 Stat 0x0 usb-storage: scsi cmd done, result=0x0 usb-storage: *** thread sleeping. regards, hampel ------------------------------------------------------- This SF.net email is sponsored by: SF.net Giveback Program. 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