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[Gcl-devel] Re: Flakiness: realp in fresh Maxima 5.9.0/GCL 2.5.0

From: Camm Maguire
Subject: [Gcl-devel] Re: Flakiness: realp in fresh Maxima 5.9.0/GCL 2.5.0
Date: 26 Feb 2003 19:18:31 -0500
User-agent: Gnus/5.09 (Gnus v5.9.0) Emacs/21.2

Greetings!  Well, I'm afraid if its Windows specific, our kindly Mike
Thomas and David Billinghurst are the ones with the knowledge to

In general, though, I'd compile with --enable-debug, set
compiler::*default-{c,h,data}-file* to t in the gcl image, configure
maxima with --enable-alt-gcl-link, rebuild maxima, run the program
under gdb (r -eval '(run)', image src/binary-gcl/maxima), and try to
break at the offending line.

There is probably a simpler way, though.

Good luck!

"Stavros Macrakis" <address@hidden> writes:

> Camm--
> I have a weird, hard-to-reproduce error in Maxima/GCL.
> I start Maxima 5.9.0.  Hit control-G to get into GCL.
> (realp 'a) crashes GCL (socket error).
> Tried reproducing it both in fresh Maximas and in restarted Maximas and
> it sometimes fails, sometimes works.  Same problem with isqrt (but not
> sqrt) and lisp-implementation-version (probably from the call to
> format).
> I am guessing there is some glitch in loading a DLL or something?
> I have tried reproducing this on standalone 2.5.0 and not succeeded.
> But that may just mean that it is some sort of race condition that just
> happens not to have come up.  Or it may have something to do with the
> global state of my machine -- I don't know how shared libraries operate
> on Windows.  If I were a patient guy, I would try rebooting to see if I
> could reproduce it, but....  Or even better, I would be running
> VirtualPC or VMWare and would be able to do an instantaneous virtual
> reboot, but I don't have them....
> Any ideas about how I can help you track this problem down?
>        -s

Camm Maguire                                            address@hidden
"The earth is but one country, and mankind its citizens."  --  Baha'u'llah

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