I have also noticed this delay and have through instrumenting code have found that every block in the device gets read in. I never checked if it was something in the df, filesystem, SCSI, or USB subsystems that was causing this. I am usually doing df on USB storage devices formated as FAT 32 w/ and w/o LBA.
Branden On 7/31/07, Alan Stern <[EMAIL PROTECTED]> wrote: > On Tue, 31 Jul 2007, Kostas Peletidis wrote: > > > Hi Alan, > > > > I enabled CONFIG_USB_DEBUG and reproduced the problem but didn't see any > > messages in the dmesg output. To ensure that the debug code was indeed > > built in I unplugged the disk then plugged it back in. I got quite a few > > messages, here are the last of them: > > > I see most of these messages at boot time even with older 2.6 kernels. > > Yes, they are normal. > > > The problem appears after the "device scan complete" message is traced. > > > > The patch that caused this issue was added between the 2.6.21.5 and > > 2.6.22 releases. The only patch that led to 2.6.21.6 had to do with > > nf_conntrack_h323 so this leaves us with the patches between 2.6.21.6 > > and 2.6.22. There are quite a few usb changes in that changelog so I was > > hoping that someone might recognise/remember something relevant. > > I'd guess that this was caused by a change somewhere else in the > kernel, not in the USB stack. My advice now is the same as Matt's was: > turn on CONFIG_USB_STORAGE_DEBUG and see what you get. > > Alan Stern > > > ------------------------------------------------------------------------- > This SF.net email is sponsored by: Splunk Inc. > Still grepping through log files to find problems? Stop. > Now Search log events and configuration files using AJAX and a browser. > Download your FREE copy of Splunk now >> http://get.splunk.com/ > _______________________________________________ > linux-usb-devel@lists.sourceforge.net > To unsubscribe, use the last form field at: > https://lists.sourceforge.net/lists/listinfo/linux-usb-devel > ------------------------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now >> http://get.splunk.com/ _______________________________________________ linux-usb-devel@lists.sourceforge.net To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
