On Sun, 6 Mar 2005, Gerd v. Egidy wrote: > Switching the controller has helped! > > I bought an ALI as suggested. I still get a lot of usb resets but no > disconnects anymore. This means the backup works without being > killed but the overall speed is not good because of the time needed > for the resets.
This certainly supports the hypothesis that you're encountering hardware errors at some level. > The resets with the new controller look different than before. There are now > just two > different types of errors: > > usb-storage: Command READ_10 (10 bytes) > usb-storage: 28 00 12 5c 00 a7 00 00 08 00 > usb-storage: Bulk Command S 0x43425355 T 0x29ca L 4096 F 128 Trg 0 LUN 0 CL 10 > usb-storage: usb_stor_bulk_transfer_buf: xfer 31 bytes > usb-storage: Status code 0; transferred 31/31 > usb-storage: -- transfer complete > usb-storage: Bulk command transfer result=0 > usb-storage: usb_stor_bulk_transfer_sglist: xfer 4096 bytes, 1 entries > usb-storage: Status code 0; transferred 4096/4096 > usb-storage: -- transfer complete > usb-storage: Bulk data transfer result 0x0 > usb-storage: Attempting to get CSW... > usb-storage: usb_stor_bulk_transfer_buf: xfer 13 bytes > usb-storage: Status code 0; transferred 0/13 > usb-storage: -- short transfer > usb-storage: Received 0-length CSW; retrying... That could be another hardware problem. Are you using the ALI controller connected through an external hub? A number of other people have found they needed to that in order to fix a clock jitter problem in the ALI hardware. > and the second one: > > usb-storage: Command WRITE_10 (10 bytes) > usb-storage: 2a 00 0e 80 00 6f 00 00 08 00 > usb-storage: Bulk Command S 0x43425355 T 0x2d65 L 4096 F 0 Trg 0 LUN 0 CL 10 > usb-storage: usb_stor_bulk_transfer_buf: xfer 31 bytes > usb-storage: Status code 0; transferred 31/31 > usb-storage: 00 06 fc 02 27 00 00 08 00 > usb-storage: Bulk Command S 0x43425355 T 0x2dc0 L 4096 F 128 Trg 0 LUN 0 CL 10 This looks suspicious right here. Part of the log is missing. Did you take this from dmesg output or did it come from a file written by syslogd? Alan Stern ------------------------------------------------------- SF email is sponsored by - The IT Product Guide Read honest & candid reviews on hundreds of IT Products from real users. Discover which products truly live up to the hype. Start reading now. http://ads.osdn.com/?ad_id=6595&alloc_id=14396&op=click _______________________________________________ linux-usb-devel@lists.sourceforge.net To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
