Re: [RFC, PATCH] locks: remove posix deadlock detection

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On Sun, 28 Oct 2007, Matthew Wilcox wrote:

> You can't fix the false EDEADLK detection without solving the halting
> problem.  Best of luck with that.

Could you please elaborate a little bit more on this? I don't see how 
detecting loops in graph relates to solving halting problem.

Of course the halting problem can be transformed to deadlock-detection 
problem, but this relates to static code analysis, right? Not anything we 
are interested in, i.e. tracking things in runtime and detecting loops in 
simple dependency graphs.

-- 
Jiri Kosina
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