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Date: Wed, 25 Sep 2002 04:10:38 -0700
From: Francis Upton <francisu AT ieee DOT org>
Subject: sevg using perl 5.8.0
To: cygwin AT cygwin DOT com
Message-id: <5.1.0.14.0.20020925035954.0266a408@postoffice.pacbell.net>
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I had this same problem on 5.6.1 as well, and installed 5.8.0 hoping it 
would go away.

I run a script that opens mysql and it gets a seg fault.  Here is the script:

#!/usr/local/bin/perl -w

use strict;
use Getopt::Std;
use DBI qw( :utils :sql_types );


my $dbh = DBI->connect( "dbi:mysql:logdb;host=localhost",
                         "root",
                         undef,
                       {
                         PrintError => 1,
                         RaiseError => 1,
                         AutoCommit => 1
                       } );

unless ( $dbh ) {
         print "$0: $DBI::errstr\n";
         exit;
}


/d/src/admin/logdb> perl -V
Summary of my perl5 (revision 5.0 version 8 subversion 0) configuration:
   Platform:
     osname=cygwin, osvers=1.3.12(0.5432), archname=cygwin-multi-64int
     uname='cygwin_nt-5.0 kmbestst 1.3.12(0.5432) 2002-07-06 02:16 i686 
unknown '
     config_args='-de -Dmksymlinks -Dusemultiplicity -Duse64bitint 
-Doptimize=-O2 -Dman3ext=3pm'
     hint=recommended, useposix=true, d_sigaction=define
     usethreads=undef use5005threads=undef useithreads=undef 
usemultiplicity=define
     useperlio=define d_sfio=undef uselargefiles=define usesocks=undef
     use64bitint=define use64bitall=undef uselongdouble=undef
     usemymalloc=y, bincompat5005=undef
   Compiler:
     cc='gcc', ccflags ='-DPERL_USE_SAFE_PUTENV -fno-strict-aliasing',
     optimize='-O2',
     cppflags='-DPERL_USE_SAFE_PUTENV -fno-strict-aliasing'
     ccversion='', gccversion='3.1.1 20020718 (prerelease)', gccosandvers=''
     intsize=4, longsize=4, ptrsize=4, doublesize=8, byteorder=12345678
     d_longlong=define, longlongsize=8, d_longdbl=define, longdblsize=12
     ivtype='long long', ivsize=8, nvtype='double', nvsize=8, 
Off_t='off_t', lseeksize=4
     alignbytes=8, prototype=define
   Linker and Libraries:
     ld='ld2', ldflags =' -s -L/usr/local/lib'
     libpth=/usr/local/lib /usr/lib /lib
     libs=-lgdbm -lcrypt -lutil
     perllibs=-lcrypt -lutil
     libc=/usr/lib/libc.a, so=dll, useshrplib=true, libperl=libperl.a
     gnulibc_version=''
   Dynamic Linking:
     dlsrc=dl_dlopen.xs, dlext=dll, d_dlsymun=undef, ccdlflags=' -s'
     cccdlflags=' ', lddlflags=' -s -L/usr/local/lib'


Characteristics of this binary (from libperl):
   Compile-time options: MULTIPLICITY USE_64_BIT_INT USE_LARGE_FILES 
PERL_IMPLICIT_CONTEXT
   Built under cygwin
   Compiled at Jul 24 2002 18:47:09
   %ENV:
     CYGWIN=""
   @INC:
     /usr/lib/perl5/5.8.0/cygwin-multi-64int
     /usr/lib/perl5/5.8.0
     /usr/lib/perl5/site_perl/5.8.0/cygwin-multi-64int
     /usr/lib/perl5/site_perl/5.8.0
     /usr/lib/perl5/site_perl
     .
/d/src/admin/logdb>

Here is the stackdump:

/d/src/admin/logdb> more perl.exe.stackdump
Exception: STATUS_ACCESS_VIOLATION at eip=20348A9C
eax=00000000 ebx=8DB9E5D0 ecx=0000007E edx=10124014 esi=E36E7974 edi=00000000
ebp=00040000 esp=0022F34C program=c:\kits\cygwin\bin\perl.exe
cs=001B ds=0023 es=0023 fs=0038 gs=0000 ss=0023
Stack trace:
Frame     Function  Args
    1420 [main] perl 2456 handle_exceptions: Error while dumping state 
(probably corrupted stack)
/d/src/admin/logdb>


When i try to run it with perl -d, I get this:

/d/src/admin/logdb> perl -d test.pl

Loading DB routines from perl5db.pl version 1.19
Editor support available.

Enter h or `h h' for help, or `man perldebug' for more help.

<then it loops forever, fully consuming the CPU>


Also, It gets a segv when running CPAN, after it goes through all of the 
CPAN questions.


When I was on 5.6.1, the problems were similar, though perl -d worked 
better and i could run my test program with it and get a perl stack 
trace.  If this is helpful, i can reinstall 5.6.1 and post that trace.

I'm running win2000, SP2 (5.0.2195).

Other perl programs seem to work ok.

SHould I just reinstall all of cygwin, or is there anything else I can check?

Thanks,

Francis


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