Re: Loopback, unable to release

Jens Axboe (axboe@suse.de)
Thu, 24 May 2001 00:31:46 +0200


On Wed, May 23 2001, Adam Schrotenboer wrote:
> Using 2.4.4-ac3 (as well as in 2.4.3*) I have found it impossible to
> unmap a loopback
>
> strace losetup -d /dev/loop0 (relevant portion)
>
> open("/dev/loop0", O_RDONLY) = 3
> ioctl(3, LOOP_CLR_FD, 0) = -1 EBUSY (Device or resource busy)
> open("/usr/share/locale/en_US/LC_MESSAGES/libc.mo", O_RDONLY) = -1
> ENOENT (No such file or directory)
> open("/usr/share/locale/en/LC_MESSAGES/libc.mo", O_RDONLY) = -1 ENOENT
> (No such file or directory)
> write(2, "ioctl: LOOP_CLR_FD: Device or re"..., 44ioctl: LOOP_CLR_FD:
> Device or resource busy) = 44
> _exit(1) = ?
>
> also I have loop.o as module, and use count never decreases, in fact
> right now it is at 294.

Uhm weird. Are you talking about module use count or loop reference
count?

-- 
Jens Axboe

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