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Re: crash while testing imread.m


From: David Grundberg
Subject: Re: crash while testing imread.m
Date: Thu, 25 Feb 2010 17:29:36 +0100
User-agent: Thunderbird 2.0.0.23 (X11/20090812)

Ben Abbott wrote:
I encountered a new failure building today (its been about 2-3 weeks since my 
last build).

  scripts/image/imread.m .................................Assertion failed: 
(semaphore_info != (SemaphoreInfo *) NULL), function LockSemaphoreInfo, file 
magick/semaphore.c, line 525.

$ hg tip
changeset:   10353:7ed1f2e831ba
tag:         tip
user:        John W. Eaton <address@hidden>
date:        Wed Feb 24 16:53:46 2010 -0500
summary:     qr.cc: increase tolerance for test

>From gdb ...

Assertion failed: (semaphore_info != (SemaphoreInfo *) NULL), function 
LockSemaphoreInfo, file magick/semaphore.c, line 525.

Program received signal SIGABRT, Aborted.
0x94227732 in __kill ()
(gdb) bt
#0  0x94227732 in __kill ()
#1  0x94227724 in kill$UNIX2003 ()
#2  0x942ba98d in raise ()
#3  0x942d0a44 in abort ()
#4  0x942bd5ec in __assert_rtn ()
#5  0x1678a36c in LockSemaphoreInfo ()
#6  0x1675ace7 in GetMagickInfo ()
#7  0x16757a7a in SetImageInfo ()
#8  0x1672fd83 in ReadImage ()
#9  0x1660e115 in Magick::readImages<std::vector<Magick::Image, 
std::allocator<Magick::Image> > > (sequence_=0xbffe7f6c, address@hidden) at STL.h:2301
#10 0x16607de9 in F__magick_read__ (address@hidden, nargout=1) at 
DLD-FUNCTIONS/__magick_read__.cc:408

snip

I'm unfamiliar with this part of the code. Does anyone have an idea of what may 
have changed?

My graphicsmagick is at version 1.3.10-1

Ben


There have been changes in __magick_read__. There have also been trouble with recent GraphicsMagick releases (since 1.3.8 at least). They added an initialization that Octave isn't executing.

I'm running 1.3.6 and I'm not seeing this.

David


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