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[ID 20000301.004] DProf generates SEGV with perl-5.5.670

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From:
Fifer, Eric
Date:
March 1, 2000 04:13
Subject:
[ID 20000301.004] DProf generates SEGV with perl-5.5.670
Message ID:
779F20BCCE5AD31186A50008C75D99791716ED@SILLDN_MAIL1

This is a bug report for perl from efifer@sanwaint.com,
generated with the help of perlbug 1.27 running under perl v5.5.670.


-----------------------------------------------------------------

I'm getting core dumps on Solaris and Cygwin with Dprof
now that the DynaLoader is unloading all files at exit.

The final call to XS_DB_sub in DProf.xs occurs *after*
dl_unload_all_files.

Note that perl is still passing the lib/dprof.t test,
but a core is left behind.

-----------------------------------------------------------------

---
Site configuration information for perl v5.5.670:

Configured by FiferE at Wed Mar  1 09:10:56 GMT 2000.

Summary of my perl5 (revision 5.0 version 5 subversion 670) configuration:
  Platform:
    osname=cygwin, osvers=1.1.0(0.1732), archname=cygwin
    uname='cygwin_nt-4.0 sil2036 1.1.0(0.1732) 2000-02-29 01:26:33 i686
unknown '
    config_args='-d'
    hint=recommended, useposix=true, d_sigaction=define
    usethreads=undef use5005threads=undef useithreads=undef
usemultiplicity=undef
    useperlio=undef d_sfio=undef uselargefiles=define 
    use64bitint=undef use64bitall=undef uselongdouble=undef usesocks=undef
  Compiler:
    cc='gcc', optimize='-g', gccversion=2.95.2 19991024 (release)
    cppflags='-DDEBUGGING -fno-strict-aliasing -I/usr/local/include'
    ccflags ='-DDEBUGGING -fno-strict-aliasing -I/usr/local/include'
    stdchar='char', d_stdstdio=undef, usevfork=false
    intsize=4, longsize=4, ptrsize=4, doublesize=8
    d_longlong=define, longlongsize=8, d_longdbl=define, longdblsize=12
    ivtype='long', ivsize=4, nvtype='double', nvsize=8, Off_t='off_t',
lseeksize=4
    alignbytes=8, usemymalloc=y, prototype=define
  Linker and Libraries:
    ld='ld2', ldflags =' -L/usr/local/lib'
    libpth=/usr/local/lib /cygnus/cygwin-b21/usr/i686-pc-cygwin/lib
    libs=-lgdbm -ldb -lm -lcrypt -lcygipc -lcygwin -lkernel32
    libc=/cygnus/cygwin-b21/usr/i686-pc-cygwin/lib/libc.a, so=dll,
useshrplib=true, libperl=libperl5_5_670.a
  Dynamic Linking:
    dlsrc=dl_dlopen.xs, dlext=dll, d_dlsymun=undef, ccdlflags=' '
    cccdlflags=' ', lddlflags=' -L/usr/local/lib'

Locally applied patches:
    

---
@INC for perl v5.5.670:
    /usr/local/lib/perl5/5.5.670/cygwin
    /usr/local/lib/perl5/5.5.670
    /usr/local/lib/perl5/site_perl/5.5.670/cygwin
    /usr/local/lib/perl5/site_perl/5.5.670
    /usr/local/lib/perl5/site_perl
    .

---
Environment for perl v5.5.670:
    HOME=/efifer
    LANG (unset)
    LANGUAGE (unset)
    LD_LIBRARY_PATH (unset)
    LOGDIR (unset)
 
PATH=/cygnus/cygwin-b21/usr/bin:/cygnus/cygwin-b20/H-i586-cygwin32/bin:/usr/
local/bin:/usr/X11R6.4/bin:/usr/local/emacs/bin:/share/bin:/x86/bin:/usr/loc
al/lib:/cygdrive/t/sybase/dll:/cygdrive/c/progra~1/barra/aegis/shared
    PERL_BADLANG (unset)
    SHELL=/cygnus/cygwin-b20/H-i586-cygwin32/bin/bash.exe

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