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Re^2: Win32 - Memory can not be "read"

by HuckinFappy (Pilgrim)
on Oct 04, 2006 at 22:07 UTC ( #576427=note: print w/replies, xml ) Need Help??

in reply to Re: Win32 - Memory can not be "read"
in thread Win32 - Memory can not be "read"

thanks for the translation. That's roughly in line with what I thought it was telling me. unfortunately, this is all very sporatic, so I'm not sure how to go about capturing a symbol dump.

I also don't see any stack dump in the System Event Viewer

This is perl 5.8.5 (I'll include perl -V at the end of this reply)

I don't have a specific code I'm suspicious of. I've see this happen apprently when my scripts are:

  • Running make
  • Using File::Find to gather find a collection of related files
  • Running 'reg query' to get registry settings
  • Spawning a variety of other system commands
Summary of my perl5 (revision 5 version 8 subversion 5) configuration: Platform: osname=MSWin32, osvers=4.0, archname=MSWin32-x86-multi-thread uname='' config_args='undef' hint=recommended, useposix=true, d_sigaction=undef usethreads=undef use5005threads=undef useithreads=define usemultip +licity=define useperlio=define d_sfio=undef uselargefiles=define usesocks=undef use64bitint=undef use64bitall=undef uselongdouble=undef usemymalloc=n, bincompat5005=undef Compiler: cc='cl', ccflags ='-nologo -Gf -W3 -MD -Zi -DNDEBUG -O1 -DWIN32 -D +_CONSOLE -DNO_STRICT -DHAVE_DES_FCRYPT -DPERL_IMPLICIT_CONTEXT -DPER +L_IMPLICIT_SYS -DUSE_PERLIO -DPERL_MSVCRT_READFIX', optimize='-MD -Zi -DNDEBUG -O1', cppflags='-DWIN32' ccversion='', gccversion='', gccosandvers='' intsize=4, longsize=4, ptrsize=4, doublesize=8, byteorder=1234 d_longlong=undef, longlongsize=8, d_longdbl=define, longdblsize=10 ivtype='long', ivsize=4, nvtype='double', nvsize=8, Off_t='__int64 +', lseeksize=8 alignbytes=8, prototype=define Linker and Libraries: ld='link', ldflags ='-nologo -nodefaultlib -debug -opt:ref,icf -l +ibpath:"t:\perl\5.8.5\lib\CORE" -machine:x86' libpth=\lib t:\perl\5.8.5\lib libs= oldnames.lib kernel32.lib user32.lib gdi32.lib winspool.lib + comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib netap +i32.lib uuid.lib wsock32.lib mpr.lib winmm.lib version.lib +b odbccp32.lib msvcrt.lib perllibs= oldnames.lib kernel32.lib user32.lib gdi32.lib winspool +.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib n +etapi32.lib uuid.lib wsock32.lib mpr.lib winmm.lib version.lib odbc3 +2.lib odbccp32.lib msvcrt.lib libc=msvcrt.lib, so=dll, useshrplib=yes, libperl=perl58.lib gnulibc_version='undef' Dynamic Linking: dlsrc=dl_win32.xs, dlext=dll, d_dlsymun=undef, ccdlflags=' ' cccdlflags=' ', lddlflags='-dll -nologo -nodefaultlib -debug -opt: +ref,icf -libpath:"t:\perl\5.8.5\lib\CORE" -machine:x86' Characteristics of this binary (from libperl): Compile-time options: MULTIPLICITY USE_ITHREADS USE_LARGE_FILES PERL +_IMPLICIT_CONTEXT PERL_IMPLICIT_SYS Built under MSWin32 Compiled at Aug 12 2004 13:37:45 @INC: c:/xgsPerl/5.8.5/lib c:/xgsPerl/site/5.8.5/lib c:/xgsPerl/site/lib .

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Re^3: Win32 - Memory can not be "read"
by syphilis (Archbishop) on Oct 04, 2006 at 22:24 UTC
    I'm not sure how to go about capturing a symbol dump

    Does the pop-up you get have an option (button) that provides a dump ? I've a vague notion there's a "More Info" type button you can select, which produces the dump to a file ... but I'm not altogether sure.

      You may be right, but we've hosed ourselves there.

      Since these machines are used in gigantic overnight builds that run thousands of jobs each, we're turned off all popups. So there's an indicator in the Event Viewer that a popup would have been generated, but it doesn't actually show up. This prevents a pop-up waiting for a user response from causing the build to hang

      I'll try and turn pop-ups back on selectively on our test network, and see if I can capture some more information


Re^3: Win32 - Memory can not be "read"
by GrandFather (Saint) on Oct 04, 2006 at 22:38 UTC

    Have you tried updating your Perl?

    DWIM is Perl's answer to Gödel
      I haven't tried upgrading. I can try that, but I have a couple of issues with that:
      1. Perl is part of our engineering development environment. Since we're a month away from final release of our product, we're under an environment freeze, so an upgrade to perl is considered extremely disruptive
      2. We'd been using the exact same version of perl, with the exact same code, for over a year with no issues, so I'm more interested in what may be causing this
      That being said, I have a test network I can install a version of 5.8.8 on.

      Thanks again

        From point 2 I infer that the problem has started recently. If so, what else has changed in your environment? Windows updates perhaps? Other applications or drivers installed? New hard drives or other hardware?

        DWIM is Perl's answer to Gödel

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