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Re: possible hash deadlock with recent changes


From: dsmich
Subject: Re: possible hash deadlock with recent changes
Date: Sun, 8 May 2011 14:43:21 -0400

---- "Ludovic Courtès" <address@hidden> wrote: 
> Hi,
> 
> <address@hidden> writes:
> 
> > Recent changes to stable-2.0 seem to cause a deadlock in scwm.  Here is the 
> > last 10 frames of a backtrace.
> 
> I’m not sure if this is related but there’s this new error that has
> started happening from time to time:
> 
[ removed ]

Hmm. Might be.  Andy noted this on #guile:

<wingo> one can reproduce easily
<wingo> scheme@(guile-user)> (make-weak-value-hash-table )
<wingo> $1 = #<weak-value-hash-table 0/31>
<wingo> scheme@(guile-user)> (hash-set! $1 "foo" "bar")
<wingo> $2 = "bar"
<wingo> scheme@(guile-user)> (hash-set! $1 "foo" "baz")
<wingo> [hang.]


-Dale




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