I can fully second this... Using some drives on the lates kernel, different USB enclosures, and all of them give me some amount of issues every now and again. At least 20% of the time I either get kernel panics, SCSI errors or simply filesystem corruptions. I have really not had the time to do full debugging and log dumping and the like, mostly because I can't actually reproduce the errors easily.
I know this is not really what you wanted to hear, but there it is. It feels as though USB2 on linux 2.6 is faulty. I know the reasonings well why these drives function properly in Windows, and I know that you guys are trying your best to handle faulty hardware, but it doesn't change the user's perception that USB on linux 2.6 is buggy. Johan van den Berg On Tue, 2005-10-25 at 14:55 +0100, MAL wrote: > Alan Stern wrote: > > On Wed, 31 Aug 2005, MAL wrote: > > > >>I have been using Linux with USB 2 for ~3 years, mostly as a means of > >>imaging hard disks (reading and writing via usb-storage and sd-mod), but > >>also to run ATAPI CD/DVD writers. I have had no problem with the latter > >>(apart from throughput speed), but the former has given me no end of grief. > >> > ... > >> > >>Before I get the details and post them here, I wanted to make sure this > >>isn't a common problem and that I wouldn't be flogging a dead horse by > >>posting a load more error logs. > >> > >>Is USB 2 known to be stable in Linux on a large portion of host > >>controller hardware? > > > > Before you start posting all sorts of debugging information and error > > logs, try using the recently-released 2.6.13 kernel. It includes a change > > to the error-recovery procedure in the usb-storage driver, which now will > > work more or less the same as error-recovery in Windows. > > ok, I've been using 2.6.13 for a while now and while the error recovery > does now work (I can power cycle the device after it has a fit and it > reconnects as a new USB device), the problem with random SCSI errors to > USB2 hard disks continues, making them frustratingly unreliable. > > I have uploaded a kernel log here: > > http://dmesg:[EMAIL PROTECTED]/dmesg-20051025/dmesg.log > > I fresh booted the PC, (x86) with the USB-IDE caddy connected (shows up > as sdb with 4 partitions), made ext3 filesystems on sdb1, 3 and 4, and > made a swap filesystem on sdb2, then mounted the partitions and unpacked > a tarball system image onto the partitions (~500MB of data). > > Part way through the unpacking, the device offlines and the tar fails > horribly. This happens regularily for me, but NOT every time. > > Here is the lsusb -v output for the HDD caddy and the lspci -vv output > for the host controller: > > http://dmesg:[EMAIL PROTECTED]/dmesg-20051025/lsusb.log > http://dmesg:[EMAIL PROTECTED]/dmesg-20051025/lspci.log > > I'd be happy to provide more info if needed. > > Thanks all, > MAL > > > ------------------------------------------------------- > This SF.Net email is sponsored by the JBoss Inc. > Get Certified Today * Register for a JBoss Training Course > Free Certification Exam for All Training Attendees Through End of 2005 > Visit http://www.jboss.com/services/certification for more information > _______________________________________________ > [email protected] > To unsubscribe, use the last form field at: > https://lists.sourceforge.net/lists/listinfo/linux-usb-users ------------------------------------------------------- This SF.Net email is sponsored by the JBoss Inc. Get Certified Today * Register for a JBoss Training Course Free Certification Exam for All Training Attendees Through End of 2005 Visit http://www.jboss.com/services/certification for more information _______________________________________________ [email protected] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-users
