linux-kernel - Re: malicious filesystems (was Re: [linux-pm] Re: [PATCH] Remove process freezer from suspend to RAM

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Message-ID: <20070721092819.GA1902@elf.ucw.cz>
Date:	Sat, 21 Jul 2007 11:28:19 +0200
From:	Pavel Machek <pavel@....cz>
To:	Miklos Szeredi <miklos@...redi.hu>
Cc:	oleg@...sign.ru, rjw@...k.pl, linux-kernel@...r.kernel.org
Subject: Re: malicious filesystems (was Re: [linux-pm] Re: [PATCH] Remove process freezer from suspend to RAM

On Sun 2007-07-15 15:06:59, Miklos Szeredi wrote:
> > > SIGKILL won't work on a stopped task.  Neither on a traced task.
> > 
> > Why do you think so? It works in both cases (ptracer can use
> > PT_TRACE_EXIT, but the task is killed anyway).
> 
> Just from experience with tasks stuck in "T" state.  After for example
> an UML dies, some of the processes only react to SIGCONT, but not to
> SIGKILL.
> 
> I have no idea why this happens.

Anyway that should be fixed, not used as excuse for fuse misbehaviour.
									Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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