Bug 215709 - Some modules have incorrect ref count after first use
Summary: Some modules have incorrect ref count after first use
Alias: None
Product: Fedora
Classification: Fedora
Component: kernel
Version: 6
Hardware: i686
OS: Linux
Target Milestone: ---
Assignee: Kernel Maintainer List
QA Contact: Brian Brock
Depends On:
TreeView+ depends on / blocked
Reported: 2006-11-15 10:55 UTC by vvs
Modified: 2007-11-30 22:11 UTC (History)
1 user (show)

Clone Of:
Last Closed: 2007-01-22 13:24:10 UTC

Attachments (Terms of Use)

Description vvs 2006-11-15 10:55:02 UTC
Description of problem:

Some kernel modules (e.g. loop, floppy, ide-cd) have incorrect ref count after
their first use, which prevent them from unloading.

Version-Release number of selected component (if applicable):


How reproducible:


Steps to Reproduce:
1. modprobe loop
2. lsmod
3. take note of ref count ("Used by"), should be zero
4. losetup /dev/loopx somefile (where loopx is free loop device)
5. losetup -d /dev/loopx
6. lsmod
Actual results:

The ref count is NOT zero

Expected results:

It should be zero

Additional info:

It's important that you do the above steps right after loading kernel module. It
may be necessary to modify modprobe.conf to make this module unavailable during
system boot and enable it later.

The same thing happens with floppy and ide-cd modules.

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