Messages in this thread | | | Date | Mon, 23 Nov 2009 15:33:56 -0500 (EST) | From | Alan Stern <> | Subject | Re: Weird I/O errors with USB hard drive not remounting filesystem readonly |
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On Mon, 23 Nov 2009 tmhikaru@gmail.com wrote:
> Uhh, this could be a problem. CONFIG_USB_MON=y is set in my .config BUT, > although I followed the directions and debugfs is mounted, > > root@roll:/home/tm# mount > /dev/root on / type ext4 (rw,relatime,barrier=1,data=ordered,data_err=abort) > proc on /proc type proc (rw) > sysfs on /sys type sysfs (rw) > usbfs on /proc/bus/usb type usbfs (rw) > none_debugs on /sys/kernel/debug type debugfs (rw) > > I receive this message when I test if usbmon's directory exists: > > root@roll:/home/tm# ls /sys/kernel/debug/usbmon > ls: cannot access /sys/kernel/debug/usbmon: No such file or directory > > According to the kernel documentation usbmon should be loaded already. Help?
The documentation is slightly out of date. The usbmon directory has been moved down a level, to /sys/kernel/debug/usb/usbmon.
Alan Stern
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