summary: Test for bz531576 ([RHEL5] memusage cmd segfaults if run on a perl)
description: |
    Bug summary: [RHEL5] memusage cmd segfaults if run on a perl script that has 'use' in it
    Bugzilla link: https://bugzilla.redhat.com/show_bug.cgi?id=531576

    Description:

    Description of problem:

    memusage utility is part of glibc-devel

    memusage cmd segfaults if run on a perl script that has 'use' in it.

    Examples:

    [my_name@my_host ~]$ ./memusage --png=out.png -x 800 -y 300 ./perltest.pl

    This works (contents of perltest.pl):

        #!/usr/bin/perl -w
        print "my_name\n";

    This segfaults:

        #!/usr/bin/perl -w
        use Net::SSH::Perl;
        print "my_name\n";

    Version-Release number of selected component (if applicable):


    How reproducible:

    very

    Steps to Reproduce:
    1.create perl script:

        #!/usr/bin/perl -w
        # perltest.pl
        use Net::SSH::Perl;
        print "my_name\n";

    2. run memusage on script:
        [my_name@my_host ~]$ ./memusage --png=out.png -x 800 -y 300 ./perltest.pl
      
    Actual results:


    my_name@my_host /tmp % memusage --png=out.png -x 800 -y 300 ./perltest.pl
    /usr/bin/memusage: line 253: 29483 Segmentation fault      (core dumped) LD_PRELOAD=/usr/\$LIB/libmemusage.so MEMUSAGE_OUTPUT=/tmp/memusage.S29480 "$@"
    /usr/bin/memusage: line 265: 29484 Floating point exception(core dumped) $memusagestat $memusagestat_args "$datafile" "$png"


    Expected results:

    my_name@my_host /tmp % memusage --png=out.png -x 800 -y 300 ./perltest.pl
    my_name

    Memory usage summary: heap total: 278236, heap peak: 271027, stack peak: 10816
             total calls   total memory   failed calls
     malloc|        684         277100              0
    realloc|         14           1136              0  (nomove:6, dec:1, free:0)
     calloc|          0              0              0
       free|         94          20735
    Histogram for block sizes:
        0-15            215  30% ==================================================
       16-31            110  15% =========================
       32-47             36   5% ========
       48-63            110  15% =========================
       64-79             34   4% =======
       80-95             64   9% ==============
       96-111            63   9% ==============
      112-127             3  <1%
      128-143             8   1% =
      144-159             2  <1%
      160-175             4  <1%
      240-255             4  <1%
      256-271             8   1% =
      512-527             2  <1%
      592-607             1  <1%
      800-815             3  <1%
     1024-1039            3  <1%
     1568-1583            1  <1%
     2400-2415            1  <1%
     4032-4047            2  <1%
     4048-4063            1  <1%
     4064-4079            1  <1%
     4080-4095            7   1% =
     4096-4111           10   1% ==
     4224-4239            1  <1%
     4368-4383            2  <1%
     7904-7919            1  <1%
       large              1  <1%



    Additional info:

    I have no ulimit and yet there does not appear to be a core file.
contact: Petr Muller <pmuller@redhat.com>
component:
  - glibc
test: ./runtest.sh
framework: beakerlib
recommend:
  - glibc
  - glibc-utils
  - python
  - python3
  - gcc
duration: 90m
link:
  - relates: https://bugzilla.redhat.com/show_bug.cgi?id=531576
extra-summary: /tools/glibc/Regression/bz531576-memusage-cmd-segfaults-on-perl-scripts
extra-task: /tools/glibc/Regression/bz531576-memusage-cmd-segfaults-on-perl-scripts