Re: kernel threads holding /dev/console

[Måns Rullgård]

Andrew Morton <akpm@xxxxxxxx> writes:

> mru@xxxxxx (Måns Rullgård) wrote:
>>
>> I'm trying to set up a pivot_root hack to do some things, switch root,
>>  and then unmount the original root.  However, the unmount fails
>>  because ksoftirqd/0, events/0, kblockd/0 and aio/0 have /dev/console
>>  opened.  Why are they doing this?  Can it be prevented?  This happens
>>  when using kernel 2.6.3 (2.6.4 is reportedly broken on Alpha).  It
>>  works with a 2.4 kernel using the same script.  Does anyone have a
>>  hint?
>
> That's a bug.
>
> keventd and friends are currently holding /dev/console open three times. 
> It's all inherited from init.
>
> Steal the relevant parts of daemonize() to fix that up.

That did the trick.  Thanks for the quick response.

-- 
Måns Rullgård
mru@xxxxxx
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