How do you swarm guys make valgrind work?

[Paul E. Johnson]

Several people recommended I try Valgrind as a way to find the memory 
problem in the program that one of the users sent me.  

I've developed this weird problem with a Swarm list, where I only put in 
Person objects, but then after a while, the program crashes saying the 
IndexLinked_List does not answer to getAge, one of the methods in 
Person. So, obviously, somehow I'm getting an index written where I 
should have a person, and I can't for the life of me figure out why.

I downloaded the last stable Valgrind 1.0.4 as well as their development 
versions and I get the same result either way.  I can't even get my 
program to start up.  Obviously, on these RedHat Linux systems, I need 
some special exclusions to make this work?  Can anybody who gets it to 
work tell me exactly how?

I've tried this on both Redhat 7.3 (glibc 2.2) and Redhat 8.0 (with the 
fishy glibc 2.3) and the same happens.  Same with my programs or heatbugs.

$ /usr/local/valgrind/bin/valgrind ./v6
==1569== Memcheck, a.k.a. Valgrind, a memory error detector for x86-linux.
==1569== Copyright (C) 2002, and GNU GPL'd, by Julian Seward.
==1569== Using valgrind-1.9.3, a program instrumentation system for 
x86-linux.
==1569== Copyright (C) 2000-2002, and GNU GPL'd, by Julian Seward.
==1569== Estimated CPU clock rate is 550 MHz
==1569== For more details, rerun with: -v
==1569==
Double word alignment of malloc allocations not guaranteed
on local machine architecture.
Please report to address@hidden
Standard fixup taken, execution continuing...
==1569== Invalid write of size 4
==1569==    at 0x403CE545: _i_Zone_c__allocIVars_ 
(/home/pauljohn/LinuxDownloads/redhat/BUILD/swarm-2.1.141.20021019/src/defobj/Zone.m:183)
==1569==    by 0x403CCF86: initModules 
(/home/pauljohn/LinuxDownloads/redhat/BUILD/swarm-2.1.141.20021019/src/defobj/Program.m:140)
==1569==    by 0x403CD862: _obj_initModule 
(/home/pauljohn/LinuxDownloads/redhat/BUILD/swarm-2.1.141.20021019/src/defobj/Program.m:260)
==1569==    by 0x401FEFE0: _c_SwarmEnvironment__createBegin 
(/home/pauljohn/LinuxDownloads/redhat/BUILD/swarm-2.1.141.20021019/src/SwarmEnvironment.m:90)
==1569==    Address 0x18 is not stack'd, malloc'd or free'd
Segmentation fault

 

--
Paul E. Johnson                       email: address@hidden
Dept. of Political Science            http://lark.cc.ukans.edu/~pauljohn
University of Kansas                  Office: (785) 864-9086
Lawrence, Kansas 66045                FAX: (785) 864-5700



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