On 7/11/07, Branden Sletteland <[EMAIL PROTECTED]> wrote: > On 7/11/07, Alan Stern <[EMAIL PROTECTED]> wrote: > > On Wed, 11 Jul 2007, Branden Sletteland wrote: > > > > > None of these patches exhibited the problem. The third one couldn't > > > read the USB device descriptor, but the 4th patch fixed that. > > > > > > I noticed these patches only touched files in drivers/usb/host, did > > > anything change in drivers/usb/core or other places in the same time > > > frame. > > > > Certainly. However the problem starts when your device is identified > > as full speed rather than high speed, and that identification is made > > within ehci-hcd. > > > > Maybe you could try taking the entire drivers/usb/host directory from > > 2.6.21, putting it in a 2.6.20 source tree, and building it. I don't > > know if that will work, but it's worth a try. > > > > Tried this and it actually built, exhibited the same full speed > problem as 2.6.21-rc1, so that seems to narrow it down to that > directory. > I guess it wasn't 100% the same result, if the storage device is plugged in during kernel initialization the device is detected as a high speed device, but if I power cycle the storage device it eventually gets detected as a high speed device, as you can see from the following dmesg dump.
<6>usb 4-1: new full speed USB device using ohci_hcd and address 2 <6>usb 4-1: not running at top speed; connect to a high speed hub <6>usb 4-1: configuration #1 chosen from 1 choice <6>scsi0 : SCSI emulation for USB Mass Storage devices <7>usb-storage: device found at 2 <7>usb-storage: waiting for device to settle before scanning <6>usb 4-1: reset full speed USB device using ohci_hcd and address 2 <3>usb 4-1: failed to restore interface 0 altsetting 0 (error=-62) <6>usb 4-1: USB disconnect, address 2 <7>usb-storage: device scan complete <6>usb 4-1: new full speed USB device using ohci_hcd and address 3 <6>usb 4-1: not running at top speed; connect to a high speed hub <6>usb 4-1: configuration #1 chosen from 1 choice <6>scsi1 : SCSI emulation for USB Mass Storage devices <7>usb-storage: device found at 3 <7>usb-storage: waiting for device to settle before scanning <5>scsi 1:0:0:0: Direct-Access Cypress Semi PQ: 0 ANSI: 0 <6>usb 4-1: reset full speed USB device using ohci_hcd and address 3 <5>SCSI device sda: 4001760 512-byte hdwr sectors (2049 MB) <5>sda: Write Protect is off <7>sda: Mode Sense: 27 00 00 00 <3>sda: assuming drive cache: write through <6>sd 1:0:0:0: ioctl_internal_command return code = 8000002 <6> : Current: sense key=0x0 <6> ASC=0x0 ASCQ=0x0 <5>SCSI device sda: 4001760 512-byte hdwr sectors (2049 MB) <5>sda: Write Protect is off <7>sda: Mode Sense: 27 00 00 00 <3>sda: assuming drive cache: write through <6> sda:<6>usb 4-1: reset full speed USB device using ohci_hcd and address 3 <4> sda1 <6>sd 1:0:0:0: ioctl_internal_command return code = 8000002 <6> : Current: sense key=0x0 <6> ASC=0x0 ASCQ=0x0 <5>sd 1:0:0:0: Attached scsi removable disk sda <7>usb-storage: device scan complete <6>usb 4-1: USB disconnect, address 3 <3>scsi 1:0:0:0: rejecting I/O to dead device <6>usb 3-1: new full speed USB device using ohci_hcd and address 2 <6>usb 3-1: not running at top speed; connect to a high speed hub <6>usb 3-1: configuration #1 chosen from 1 choice <6>scsi2 : SCSI emulation for USB Mass Storage devices <7>usb-storage: device found at 2 <7>usb-storage: waiting for device to settle before scanning <6>usb 2-1: new high speed USB device using ehci_hcd and address 2 <6>usb 2-1: configuration #1 chosen from 1 choice <6>scsi3 : SCSI emulation for USB Mass Storage devices <7>usb-storage: device found at 2 <7>usb-storage: waiting for device to settle before scanning <6>usb 2-2: new high speed USB device using ehci_hcd and address 3 <3>usb 2-2: device not accepting address 3, error -71 <6>usb 3-1: USB disconnect, address 2 <6>usb 2-1: USB disconnect, address 2 <6>usb 1-2: new high speed USB device using ehci_hcd and address 4 <6>usb 1-2: configuration #1 chosen from 1 choice <6>scsi4 : SCSI emulation for USB Mass Storage devices <7>usb-storage: device found at 4 <7>usb-storage: waiting for device to settle before scanning <5>scsi 4:0:0:0: Direct-Access Cypress Semi PQ: 0 ANSI: 0 <5>SCSI device sda: 4001760 512-byte hdwr sectors (2049 MB) <5>sda: Write Protect is off <7>sda: Mode Sense: 27 00 00 00 <3>sda: assuming drive cache: write through <6>sd 4:0:0:0: ioctl_internal_command return code = 8000002 <6> : Current: sense key=0x0 <6> ASC=0x0 ASCQ=0x0 <5>SCSI device sda: 4001760 512-byte hdwr sectors (2049 MB) <5>sda: Write Protect is off <7>sda: Mode Sense: 27 00 00 00 <3>sda: assuming drive cache: write through <6> sda:<6>usb 1-2: reset high speed USB device using ehci_hcd and address 4 <4> sda1 > Was the last patch in the previous emails the version of the files > that became 2.6.21-rc1 or should I start bisecting between that and > rc1. > > > > Or are there other patches prior to 2.6.21-rc1 that I can try? > > > > To get the complete set of changes you need to use Git. Then you can > > perform a bisection to find exactly where the problem starts. > > > > Linus Torvalds recently posted a message including a quick summary of > > how to do this. See > > > > http://marc.info/?l=linux-kernel&m=118408208816556&w=2 > > > > Alan Stern > > > > > ------------------------------------------------------------------------- This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. No limits. Just data. Click to get it now. http://sourceforge.net/powerbar/db2/ _______________________________________________ linux-usb-devel@lists.sourceforge.net To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
