loop device

W. Michael Petullo (wp0002@drake.edu)
Mon, 10 May 1999 00:05:31 -0400 (EDT)

I am having trouble with the loop-back device in the 2.2.7 kernel. For
example:

Mounting a filesystem image with `mount -t ext2 -o loop=/dev/loop1 foo
bar` works fine -- the first time. Unmounting it also works. However
once I have executed the above mount/unmount commands, any successive
mount using /dev/loop1 fails with: "ioctl: LOOP_SET_FD: Device or resource
busy."

Also, after any mounts using loop-back devices have been unmounted, trying
to rmmod the loop device fails with a similar message.

I wasn't sure if this behavior was due to the kernel or umount (mount
2.9o) not freeing resources correctly. Either way, at this point I have
to reboot to use /dev/loop1 a second time.

`lsof` does not seem to report anything odd (like /dev/loop1 being left
open).

Does anyone have any ideas?

--
W. Michael Petullo


:wq






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