kld regression

John Baldwin jhb at freebsd.org
Thu Jan 31 04:16:02 PST 2008

On Wednesday 30 January 2008 12:39:14 pm Andriy Gapon wrote:
> The problem is as follows:
> 1. put udf_load="YES" in loader.conf
> 2. you can mount and unmount udf filesystems
> 3. you can kldunload udf if no udf filesystems are mounted
> 4. now mount udf fs while udf.ko is unloaded
> 5. udf is auto loaded and fs is mounted
> 6. unmount fs
> 7. try to kldunload udf
> kldunload: can't unload file: Device busy
> kernel message: kldunload: attempt to unload file that was loaded by the
> kernel
> Yeah, it was loaded by kernel indeed, but WTF - what is the difference
> from manual/loader.conf loading and why I can not manage my modules as I
> wish?

Hmm, the relevant code (vfs_init.c) hasn't changed in 6.x since 6.0.  There 
were some changes in 7.0, but this should work in both branches.  What is the 
previous release that this worked on?

John Baldwin

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