Hello Alan, On Sat, 25 Sep 2004, Alan Stern wrote: > A patch has been submitted to fix this problem, which shows up for a few > non-compliant devices. The patch hasn't been accepted yet, but it's > available at > https://lists.one-eyed-alien.net/pipermail/usb-storage/2004-August/000748.html
Thanks for your quick reply. After adding my device to the table, I could read it fine again, but writing is still a problem. My dmesg is still filled with messages like: SCSI error : <3 0 0 0> return code = 0x10070000 end_request: I/O error, dev sda, sector 228958 printk: 5 messages suppressed. Buffer I/O error on device sda1, logical block 228851 lost page write due to I/O error on sda1 .. and the file ends up corrupted on the device. If I completely back out the residue checking I don't get any errors (obviously), and the device still seems to "get" all data correctly. That is: after unplugging, replugging, remounting, the contents of the just written file is still correct. Adding a few printk-s tells us that the problems always occur on transfers of length 65536 where my device will report residue 65536. So I can copy files up to about 60k to the device (no residues nothing), but larger files will set off the underflow problem. I guess the no-check-residue-on-read is not good enough for this device. Doesn't really surprise me; the thing has given me no end of problems with corrupted data and stuff. But still the recent change in the USB Storage driver makes it totally impossible to use this device while it was working reasonably on earlier Linux versions; that is not very nice. Do you have any more ideas on this ? Thanks, Joris. ------------------------------------------------------- This SF.Net email is sponsored by: YOU BE THE JUDGE. Be one of 170 Project Admins to receive an Apple iPod Mini FREE for your judgement on who ports your project to Linux PPC the best. Sponsored by IBM. Deadline: Sept. 24. Go here: http://sf.net/ppc_contest.php _______________________________________________ [EMAIL PROTECTED] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
