On Sun, 13 Nov 2005, David Relson wrote: > Hi Alan, > > You're right, I didn't include much information. I have > CONFIG_USB_DEBUG enabled and CONFIG_USB_STORAGE_DEBUG disabled. > > Attached are the boot time messages for the USB hard drive.
They don't give any information about what's going wrong. At boot time everything looks normal. Do you have log messages from the time when the problem occurred? > I'm using BackupPC to backup my workstation (80GB, 70% full) to the USB > drive. The problem doesn't appear immediately. It may be several > hours into the backup process. > > At one time I tried building with CONFIG_USG_STORAGE_DEBUG=y and it > seemed that _every_ I/O operation got logged, which presented a problem > of too much data to store. One way to handle this may be to avoid storing debug-level messages in the system log. Configure the kernel with a large log-buffer size and use dmesg after the fact to retrieve the most recent (and most important) log entries. Of course, this won't work if the machine reboots... > As mentioned in my post a few days ago, on the occasions I've been > running overnight backups, the next morning my workstation is either > hung or has rebooted. If the backup isn't running the machine is fine > in the morning. > > FWIW, the workstation has 1G RAM and (recently) I added a 1G swap file > to supplement the 1G swap partition. With the 80GB HD and its 1M > files, BackupPC uses approx 1G RAM. > > I hope this helps explain the situation. I much like the idea of > backing up to a USB HD and am willing to do what I can to help > determine what's going on. Software problems shouldn't cause either a hang or a reboot. You could consider getting an add-on PCI USB controller card; it would at least avoid whatever hardware problems your motherboard might have. Alan Stern ------------------------------------------------------- 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. For more info visit: http://ads.osdn.com/?ad_id=7628&alloc_id=16845&op=click _______________________________________________ [email protected] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-users
