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Re: [Chicken-meisters] Restart of apache required


From: Peter Bex
Subject: Re: [Chicken-meisters] Restart of apache required
Date: Sun, 8 May 2011 14:38:59 +0200
User-agent: Mutt/1.4.2.3i

On Wed, May 04, 2011 at 05:57:16AM -0400, Felix wrote:
> > I put the logs in /home/mario/spiffy-hang/2011-05-04
> > 
> > It says the following in init.log:
> > 
> > switching to #<thread: thread181594>
> > #<thread: thread181594> blocks for timeout -2147409012.0
> > ##sys#thread-block-for-timeout!: invalid timeout
> > [] 
> > ...more...
> > <CALL CHAIN HERE>
> > 
> > What's going on?
> 
> A negative timeout value. This seems to happen from time to time, I
> don't know the reason for this. The places where this procedure is
> called are the srfi-18 API functions, so this already is an invalid
> argument passed to library functions. There are some lowlevel eggs
> like sendfile that call these internal blocking-procedures, IIRC, and
> there also incorrect timeout-argument values are possible.

I'm not sure, but it looks like another bug today.  Spiffy didn't
respond either and at first I thought it had simply crashed, but when
I did a "restart" it killed off a process.  Have a look at
spiffy-hang/2011-05-08/debug.log: there you see LOTS of messages
"thread29893: closing off".  That shouldn't only happen once for each
thread.  Somehow the thread returned by (current-thread) is the same
more than once.  It should only get to the part where it says
"closing off" once.

Cheers,
Peter
-- 
http://sjamaan.ath.cx
--
"The process of preparing programs for a digital computer
 is especially attractive, not only because it can be economically
 and scientifically rewarding, but also because it can be an aesthetic
 experience much like composing poetry or music."
                                                        -- Donald Knuth



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