Re: udev and devfs - The final word

Diego Calleja
2004-01-08T17:26:15Z

El Thu, 8 Jan 2004 23:40:16 +0800 (WST) Ian Kent <raven@themaw.net> escribió:

>
> Again I'm also unable to find descriptions of the 'unsolvable' races.
>
> I wouldn't mind knowing what they are either. Anyone?

You can find tons of examples (several of them patches by Al Viro to fix them) by
searching with google with keywords like "devfs races". The "should fix" list
(http://www.kernel.org/pub/linux/kernel/people/akpm/must-fix) has this:

hch: devfs: there's a fundamental lookup vs devfsd race that's only
fixable by introducing a lookup vs devfs deadlock. I can't see how this is
fixable without getting rid of the current devfsd design. Mandrake seems
to have a workaround for this so this is at least not triggered so easily,
but that's not what I'd consider a fix..