Re: race condition in dm-crypt?

[Kasper Sandberg]

On Fri, 2007-03-23 at 21:41 +0100, Christoph Maier wrote:
> Jan C. Nordholz wrote:
> > I think I'm experiencing a race condition: Irregularly my kernel runs
> > into an Oops when it tries to initialize my crypt containers.
> 
> FYI, there are similiar reports on the net, going as far back as May 2006:
> http://article.gmane.org/gmane.linux.kernel.device-mapper.dm-crypt/1636 
> is the oldest one I could find.
> 
> Bugzilla entry: http://bugzilla.kernel.org/show_bug.cgi?id=7388
> 
> I, too, ran into the bug and failed to reproduce it. However, it might 
> be worth knowing that the system went to 100% iowait afterwards.
Very interresting actually. I myself run dm-crypt and somewhat regularly
my io stops for 5-10 seconds, with seemingly no errors or high load, io
just stalls, and then returns after a while.

> 
> Regards, Christoph Maier
> 
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