102 lines
2.9 KiB
Plaintext
102 lines
2.9 KiB
Plaintext
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PURPOSE of /tools/glibc/Regression/bz531576-memusage-cmd-segfaults-on-perl-scripts
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Description: Test for bz531576 ([RHEL5] memusage cmd segfaults if run on a perl)
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Author: Petr Muller <pmuller@redhat.com>
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Bug summary: [RHEL5] memusage cmd segfaults if run on a perl script that has 'use' in it
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Bugzilla link: https://bugzilla.redhat.com/show_bug.cgi?id=531576
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Description:
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Description of problem:
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memusage utility is part of glibc-devel
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memusage cmd segfaults if run on a perl script that has 'use' in it.
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Examples:
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[my_name@my_host ~]$ ./memusage --png=out.png -x 800 -y 300 ./perltest.pl
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This works (contents of perltest.pl):
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#!/usr/bin/perl -w
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print "my_name\n";
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This segfaults:
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#!/usr/bin/perl -w
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use Net::SSH::Perl;
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print "my_name\n";
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Version-Release number of selected component (if applicable):
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How reproducible:
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very
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Steps to Reproduce:
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1.create perl script:
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#!/usr/bin/perl -w
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# perltest.pl
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use Net::SSH::Perl;
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print "my_name\n";
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2. run memusage on script:
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[my_name@my_host ~]$ ./memusage --png=out.png -x 800 -y 300 ./perltest.pl
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Actual results:
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my_name@my_host /tmp % memusage --png=out.png -x 800 -y 300 ./perltest.pl
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/usr/bin/memusage: line 253: 29483 Segmentation fault (core dumped) LD_PRELOAD=/usr/\$LIB/libmemusage.so MEMUSAGE_OUTPUT=/tmp/memusage.S29480 "$@"
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/usr/bin/memusage: line 265: 29484 Floating point exception(core dumped) $memusagestat $memusagestat_args "$datafile" "$png"
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Expected results:
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my_name@my_host /tmp % memusage --png=out.png -x 800 -y 300 ./perltest.pl
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my_name
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Memory usage summary: heap total: 278236, heap peak: 271027, stack peak: 10816
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total calls total memory failed calls
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malloc| 684 277100 0
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realloc| 14 1136 0 (nomove:6, dec:1, free:0)
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calloc| 0 0 0
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free| 94 20735
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Histogram for block sizes:
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0-15 215 30% ==================================================
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16-31 110 15% =========================
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32-47 36 5% ========
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48-63 110 15% =========================
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64-79 34 4% =======
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80-95 64 9% ==============
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96-111 63 9% ==============
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112-127 3 <1%
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128-143 8 1% =
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144-159 2 <1%
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160-175 4 <1%
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240-255 4 <1%
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256-271 8 1% =
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512-527 2 <1%
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592-607 1 <1%
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800-815 3 <1%
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1024-1039 3 <1%
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1568-1583 1 <1%
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2400-2415 1 <1%
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4032-4047 2 <1%
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4048-4063 1 <1%
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4064-4079 1 <1%
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4080-4095 7 1% =
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4096-4111 10 1% ==
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4224-4239 1 <1%
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4368-4383 2 <1%
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7904-7919 1 <1%
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large 1 <1%
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Additional info:
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I have no ulimit and yet there does not appear to be a core file.
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