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Bug 1766698 - perl crash in 90threads.t of XML::LibXML
Summary: perl crash in 90threads.t of XML::LibXML
Keywords:
Status: CLOSED DUPLICATE of bug 1615923
Alias: None
Product: Red Hat Enterprise Linux 7
Classification: Red Hat
Component: perl-XML-LibXML
Version: 7.0
Hardware: Unspecified
OS: Unspecified
unspecified
unspecified
Target Milestone: rc
: ---
Assignee: perl-maint-list
QA Contact: RHEL Stacks Subsystem QE
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2019-10-29 16:58 UTC by Martin Kyral
Modified: 2019-11-21 15:16 UTC (History)
1 user (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Environment:
Last Closed: 2019-11-21 15:16:21 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)

Description Martin Kyral 2019-10-29 16:58:56 UTC 
Description of problem:
/distribution/rebuild test failed for perl-XML-LibXML on ppc64le due to the following crash in the 90threads.t test of the package in question. Subsequent rerun of the test on ppc64le passed.
I noticed the crash on the ppc64le architecture only, but given the random nature of the crash I can not exclude the possibility of of it on other architectures as well.

t/71overloads.t ...................... ok
t/72destruction.t .................... ok
t/80registryleak.t ................... ok
PmmREFCNT_dec: REFCNT decremented below 0 for 1000ab533c0! at t/90threads.t line 137.
*** Error in `/usr/bin/perl': corrupted size vs. prev_size: 0x000001000ab532d0 ***
======= Backtrace: =========
/lib64/libc.so.6(+0x937a8)[0x3fff7aef37a8]
/lib64/libc.so.6(cfree+0x8f0)[0x3fff7aefa050]
/usr/lib64/perl5/vendor_perl/auto/threads/threads.so(+0x2f24)[0x3fff7ae02f24]
/usr/lib64/perl5/vendor_perl/auto/threads/threads.so(ithread_mg_free+0x44)[0x3fff7ae030d4]
/usr/lib64/perl5/CORE/libperl.so(+0xe7bc8)[0x3fff7b3a7bc8]
/usr/lib64/perl5/CORE/libperl.so(Perl_sv_unmagic+0x38)[0x3fff7b3a7db8]
/usr/lib64/perl5/vendor_perl/auto/threads/threads.so(+0x3f34)[0x3fff7ae03f34]
/usr/lib64/perl5/CORE/libperl.so(Perl_pp_entersub+0x654)[0x3fff7b39bdb4]
/usr/lib64/perl5/CORE/libperl.so(Perl_call_sv+0x738)[0x3fff7b315d78]
/usr/lib64/perl5/CORE/libperl.so(+0xe5e04)[0x3fff7b3a5e04]
/usr/lib64/perl5/CORE/libperl.so(Perl_sv_clear+0x610)[0x3fff7b3a6a00]
/usr/lib64/perl5/CORE/libperl.so(Perl_sv_free2+0x70)[0x3fff7b3a70f0]
/usr/lib64/perl5/CORE/libperl.so(Perl_free_tmps+0xac)[0x3fff7b3d2d4c]
/usr/lib64/perl5/CORE/libperl.so(Perl_pp_nextstate+0xb4)[0x3fff7b393534]
/usr/lib64/perl5/CORE/libperl.so(Perl_runops_standard+0x38)[0x3fff7b392c58]
/usr/lib64/perl5/CORE/libperl.so(perl_run+0x32c)[0x3fff7b31bb4c]
/usr/bin/perl[0x10000e58]
/lib64/libc.so.6(+0x25100)[0x3fff7ae85100]
/lib64/libc.so.6(__libc_start_main+0xc4)[0x3fff7ae852f4]
======= Memory map: ========
10000000-10010000 r-xp 00000000 fd:00 100664548                          /usr/bin/perl
10010000-10020000 r--p 00000000 fd:00 100664548                          /usr/bin/perl
10020000-10030000 rw-p 00010000 fd:00 100664548                          /usr/bin/perl
100082f0000-10010c30000 rw-p 00000000 00:00 0                            [heap]
3ffec0000000-3ffec0030000 rw-p 00000000 00:00 0 
3ffec0030000-3ffec4000000 ---p 00000000 00:00 0 
3ffec8000000-3ffec8030000 rw-p 00000000 00:00 0 
3ffec8030000-3ffecc000000 ---p 00000000 00:00 0 
3ffecc000000-3ffecc030000 rw-p 00000000 00:00 0 
3ffecc030000-3ffed0000000 ---p 00000000 00:00 0 
3ffed0000000-3ffed0030000 rw-p 00000000 00:00 0 
3ffed0030000-3ffed4000000 ---p 00000000 00:00 0 
3ffed4000000-3ffed4030000 rw-p 00000000 00:00 0 
3ffed4030000-3ffed8000000 ---p 00000000 00:00 0 
3ffed8000000-3ffed8030000 rw-p 00000000 00:00 0 
3ffed8030000-3ffedc000000 ---p 00000000 00:00 0 
3ffedefe0000-3ffedeff0000 ---p 00000000 00:00 0 
3ffedeff0000-3ffedf7f0000 rw-p 00000000 00:00 0 
3ffedf7f0000-3ffedf800000 ---p 00000000 00:00 0 
3ffedf800000-3ffee0000000 rw-p 00000000 00:00 0 
3ffee0000000-3ffee0030000 rw-p 00000000 00:00 0 
3ffee0030000-3ffee4000000 ---p 00000000 00:00 0 
3ffee4000000-3ffee4030000 rw-p 00000000 00:00 0 
3ffee4030000-3ffee8000000 ---p 00000000 00:00 0 
3ffee8000000-3ffee8030000 rw-p 00000000 00:00 0 
3ffee8030000-3ffeec000000 ---p 00000000 00:00 0 
3ffeec000000-3ffeec030000 rw-p 00000000 00:00 0 
3ffeec030000-3ffef0000000 ---p 00000000 00:00 0 
3ffef0000000-3ffef0030000 rw-p 00000000 00:00 0 
3ffef0030000-3ffef4000000 ---p 00000000 00:00 0 
3ffef4000000-3ffef4030000 rw-p 00000000 00:00 0 
3ffef4030000-3ffef8000000 ---p 00000000 00:00 0 
3ffef8000000-3ffef8030000 rw-p 00000000 00:00 0 
3ffef8030000-3ffefc000000 ---p 00000000 00:00 0 
3ffefc000000-3ffefc030000 rw-p 00000000 00:00 0 
3ffefc030000-3fff00000000 ---p 00000000 00:00 0 
3fff00790000-3fff007a0000 ---p 00000000 00:00 0 
3fff007a0000-3fff00fa0000 rw-p 00000000 00:00 0 
3fff00fa0000-3fff00fb0000 ---p 00000000 00:00 0 
3fff00fb0000-3fff017b0000 rw-p 00000000 00:00 0 
3fff04000000-3fff04030000 rw-p 00000000 00:00 0 
3fff04030000-3fff08000000 ---p 00000000 00:00 0 
3fff08000000-3fff08030000 rw-p 00000000 00:00 0 
3fff08030000-3fff0c000000 ---p 00000000 00:00 0 
3fff0c000000-3fff0c030000 rw-p 00000000 00:00 0 
3fff0c030000-3fff10000000 ---p 00000000 00:00 0 
3fff10000000-3fff10030000 rw-p 00000000 00:00 0 
3fff10030000-3fff14000000 ---p 00000000 00:00 0 
3fff14000000-3fff14030000 rw-p 00000000 00:00 0 
3fff14030000-3fff18000000 ---p 00000000 00:00 0 
3fff18000000-3fff18030000 rw-p 00000000 00:00 0 
3fff18030000-3fff1c000000 ---p 00000000 00:00 0 
3fff1c000000-3fff1c030000 rw-p 00000000 00:00 0 
3fff1c030000-3fff20000000 ---p 00000000 00:00 0 
3fff20000000-3fff20030000 rw-p 00000000 00:00 0 
3fff20030000-3fff24000000 ---p 00000000 00:00 0 
3fff28000000-3fff28030000 rw-p 00000000 00:00 0 
3fff28030000-3fff2c000000 ---p 00000000 00:00 0 
3fff2c000000-3fff2c030000 rw-p 00000000 00:00 0 
3fff2c030000-3fff30000000 ---p 00000000 00:00 0 
3fff30000000-3fff30030000 rw-p 00000000 00:00 0 
3fff30030000-3fff34000000 ---p 00000000 00:00 0 
3fff34000000-3fff34030000 rw-p 00000000 00:00 0 
3fff34030000-3fff38000000 ---p 00000000 00:00 0 
3fff38000000-3fff38030000 rw-p 00000000 00:00 0 
3fff38030000-3fff3c000000 ---p 00000000 00:00 0 
3fff40000000-3fff40030000 rw-p 00000000 00:00 0 
3fff40030000-3fff44000000 ---p 00000000 00:00 0 
3fff44000000-3fff44030000 rw-p 00000000 00:00 0 
3fff44030000-3fff48000000 ---p 00000000 00:00 0 
3fff48000000-3fff48030000 rw-p 00000000 00:00 0 
3fff48030000-3fff4c000000 ---p 00000000 00:00 0 
3fff4c000000-3fff4c030000 rw-p 00000000 00:00 0 
3fff4c030000-3fff50000000 ---p 00000000 00:00 0 
3fff50000000-3fff50030000 rw-p 00000000 00:00 0 
3fff50030000-3fff54000000 ---p 00000000 00:00 0 
3fff54000000-3fff54030000 rw-p 00000000 00:00 0 
3fff54030000-3fff58000000 ---p 00000000 00:00 0 
3fff58000000-3fff58030000 rw-p 00000000 00:00 0 
3fff58030000-3fff5c000000 ---p 00000000 00:00 0 
3fff5c000000-3fff5c030000 rw-p 00000000 00:00 0 
3fff5c030000-3fff60000000 ---p 00000000 00:00 0 
3fff60000000-3fff60030000 rw-p 00000000 00:00 0 
3fff60030000-3fff64000000 ---p 00000000 00:00 0 
3fff64000000-3fff64030000 rw-p 00000000 00:00 0 
3fff64030000-3fff68000000 ---p 00000000 00:00 0 
3fff68000000-3fff68030000 rw-p 00000000 00:00 0 
3fff68030000-3fff6c000000 ---p 00000000 00:00 0 
3fff6c000000-3fff6c030000 rw-p 00000000 00:00 0 
3fff6c030000-3fff70000000 ---p 00000000 00:00 0 
3fff70000000-3fff70030000 rw-p 00000000 00:00 0 
3fff70030000-3fff74000000 ---p 00000000 00:00 0 
3fff7a930000-3fff7a940000 r-xp 00000000 fd:00 33591091                   /usr/lib64/perl5/auto/Fcntl/Fcntl.so
3fff7a940000-3fff7a950000 r--p 00000000 fd:00 33591091                   /usr/lib64/perl5/auto/Fcntl/Fcntl.so
3fff7a950000-3fff7a960000 rw-p 00000000 00:00 0 
3fff7a960000-3fff7a970000 r-xp 00000000 fd:00 48287                      /usr/lib64/perl5/auto/attributes/attributes.so
3fff7a970000-3fff7a980000 r--p 00000000 fd:00 48287                      /usr/lib64/perl5/auto/attributes/attributes.so
3fff7a980000-3fff7a990000 rw-p 00000000 00:00 0 
3fff7a990000-3fff7a9d0000 r-xp 00000000 fd:00 45967                      /usr/lib64/liblzma.so.5.2.2
3fff7a9d0000-3fff7a9e0000 r--p 00030000 fd:00 45967                      /usr/lib64/liblzma.so.5.2.2
3fff7a9e0000-3fff7a9f0000 rw-p 00000000 00:00 0 
3fff7a9f0000-3fff7aa10000 r-xp 00000000 fd:00 45961                      /usr/lib64/libz.so.1.2.7
3fff7aa10000-3fff7aa20000 r--p 00010000 fd:00 45961                      /usr/lib64/libz.so.1.2.7
3fff7aa20000-3fff7aa30000 rw-p 00020000 fd:00 45961                      /usr/lib64/libz.so.1.2.7
3fff7aa30000-3fff7ac50000 r-xp 00000000 fd:00 46005                      /usr/lib64/libxml2.so.2.9.1
3fff7ac50000-3fff7ac60000 r--p 00210000 fd:00 46005                      /usr/lib64/libxml2.so.2.9.1
3fff7ac60000-3fff7ac70000 rw-p 00220000 fd:00 46005                      /usr/lib64/libxml2.so.2.9.1
3fff7ac70000-3fff7acf0000 r-xp 00000000 fd:00 34661324                   /home/rebuild-perl-XML-LibXML/rpmbuild/BUILD/XML-LibXML-2.0018/blib/arch/auto/XML/LibXML/LibXML.so
3fff7acf0000-3fff7ad00000 r--p 00070000 fd:00 34661324                   /home/rebuild-perl-XML-LibXML/rpmbuild/BUILD/XML-LibXML-2.0018/blib/arch/auto/XML/LibXML/LibXML.so
3fff7ad00000-3fff7ad10000 rw-p 00000000 00:00 0 
3fff7ad10000-3fff7ad20000 r-xp 00000000 fd:00 100682726                  /usr/lib64/perl5/auto/IO/IO.so
3fff7ad20000-3fff7ad30000 r--p 00000000 fd:00 100682726                  /usr/lib64/perl5/auto/IO/IO.so
3fff7ad30000-3fff7ad40000 rw-p 00000000 00:00 0 
3fff7ad40000-3fff7ad50000 r-xp 00000000 fd:00 67366502                   /usr/lib64/perl5/vendor_perl/auto/Data/Dumper/Dumper.so
3fff7ad50000-3fff7ad60000 r--p 00000000 fd:00 67366502                   /usr/lib64/perl5/vendor_perl/auto/Data/Dumper/Dumper.so
3fff7ad60000-3fff7ad70000 rw-p 00000000 00:00 0 
3fff7ad70000-3fff7ad80000 r-xp 00000000 fd:00 67201591                   /usr/lib64/perl5/vendor_perl/auto/Encode/Encode.so
3fff7ad80000-3fff7ad90000 r--p 00000000 fd:00 67201591                   /usr/lib64/perl5/vendor_perl/auto/Encode/Encode.so
3fff7ad90000-3fff7ada0000 rw-p 00000000 00:00 0 
3fff7ada0000-3fff7adb0000 r-xp 00000000 fd:00 67201615                   /usr/lib64/perl5/vendor_perl/auto/threads/shared/shared.so
3fff7adb0000-3fff7adc0000 r--p 00000000 fd:00 67201615                   /usr/lib64/perl5/vendor_perl/auto/threads/shared/shared.so
3fff7adc0000-3fff7add0000 rw-p 00010000 fd:00 67201615                   /usr/lib64/perl5/vendor_perl/auto/threads/shared/shared.so
3fff7add0000-3fff7ade0000 r-xp 00000000 fd:00 33591024                   /usr/lib64/perl5/vendor_perl/auto/List/Util/Util.so
3fff7ade0000-3fff7adf0000 r--p 00000000 fd:00 33591024                   /usr/lib64/perl5/vendor_perl/auto/List/Util/Util.so
3fff7adf0000-3fff7ae00000 rw-p 00000000 00:00 0 
3fff7ae00000-3fff7ae10000 r-xp 00000000 fd:00 67201597                   /usr/lib64/perl5/vendor_perl/auto/threads/threads.so
3fff7ae10000-3fff7ae20000 r--p 00000000 fd:00 67201597                   /usr/lib64/perl5/vendor_perl/auto/threads/threads.so
3fff7ae20000-3fff7ae30000 rw-p 00010000 fd:00 67201597                   /usr/lib64/perl5/vendor_perl/auto/threads/threads.so
3fff7ae30000-3fff7ae40000 r-xp 00000000 fd:00 45525                      /usr/lib64/libfreebl3.so
3fff7ae40000-3fff7ae50000 r--p 00000000 fd:00 45525                      /usr/lib64/libfreebl3.so
3fff7ae50000-3fff7ae60000 rw-p 00000000 00:00 0 
3fff7ae60000-3fff7b030000 r-xp 00000000 fd:00 45803                      /usr/lib64/libc-2.17.so
3fff7b030000-3fff7b040000 r--p 001c0000 fd:00 45803                      /usr/lib64/libc-2.17.so
3fff7b040000-3fff7b050000 rw-p 001d0000 fd:00 45803                      /usr/lib64/libc-2.17.so
3fff7b050000-3fff7b070000 r-xp 00000000 fd:00 45829                      /usr/lib64/libpthread-2.17.so
3fff7b070000-3fff7b080000 r--p 00010000 fd:00 45829                      /usr/lib64/libpthread-2.17.so
3fff7b080000-3fff7b090000 rw-p 00020000 fd:00 45829                      /usr/lib64/libpthread-2.17.so
3fff7b090000-3fff7b0a0000 r-xp 00000000 fd:00 45837                      /usr/lib64/libutil-2.17.so
3fff7b0a0000-3fff7b0b0000 r--p 00000000 fd:00 45837                      /usr/lib64/libutil-2.17.so
3fff7b0b0000-3fff7b0c0000 rw-p 00000000 00:00 0 
3fff7b0c0000-3fff7b0d0000 r-xp 00000000 fd:00 45807                      /usr/lib64/libcrypt-2.17.so
3fff7b0d0000-3fff7b0e0000 r--p 00000000 fd:00 45807                      /usr/lib64/libcrypt-2.17.so
3fff7b0e0000-3fff7b110000 rw-p 00000000 00:00 0 
3fff7b110000-3fff7b1e0000 r-xp 00000000 fd:00 45811                      /usr/lib64/libm-2.17.so
3fff7b1e0000-3fff7b1f0000 r--p 000c0000 fd:00 45811                      /usr/lib64/libm-2.17.so
3fff7b1f0000-3fff7b200000 rw-p 000d0000 fd:00 45811                      /usr/lib64/libm-2.17.so
3fff7b200000-3fff7b210000 r-xp 00000000 fd:00 45809                      /usr/lib64/libdl-2.17.so
3fff7b210000-3fff7b220000 r--p 00000000 fd:00 45809                      /usr/lib64/libdl-2.17.so
3fff7b220000-3fff7b230000 rw-p 00000000 00:00 0 
3fff7b230000-3fff7b250000 r-xp 00000000 fd:00 45813                      /usr/lib64/libnsl-2.17.so
3fff7b250000-3fff7b260000 r--p 00010000 fd:00 45813                      /usr/lib64/libnsl-2.17.so
3fff7b260000-3fff7b270000 rw-p 00000000 00:00 0 
3fff7b270000-3fff7b290000 r-xp 00000000 fd:00 45831                      /usr/lib64/libresolv-2.17.so
3fff7b290000-3fff7b2a0000 r--p 00010000 fd:00 45831                      /usr/lib64/libresolv-2.17.so
3fff7b2a0000-3fff7b2b0000 rw-p 00020000 fd:00 45831                      /usr/lib64/libresolv-2.17.so
3fff7b2b0000-3fff7b2c0000 rw-p 00000000 00:00 0 
3fff7b2c0000-3fff7b480000 r-xp 00000000 fd:00 33555057                   /usr/lib64/perl5/CORE/libperl.so
3fff7b480000-3fff7b490000 ---p 001c0000 fd:00 33555057                   /usr/lib64/perl5/CORE/libperl.so
3fff7b490000-3fff7b4a0000 r--p 001c0000 fd:00 33555057                   /usr/lib64/perl5/CORE/libperl.so
3fff7b4a0000-3fff7b4b0000 rw-p 001d0000 fd:00 33555057                   /usr/lib64/perl5/CORE/libperl.so
3fff7b4b0000-3fff7b4d0000 r-xp 00000000 00:00 0                          [vdso]
3fff7b4d0000-3fff7b500000 r-xp 00000000 fd:00 45796                      /usr/lib64/ld-2.17.so
3fff7b500000-3fff7b510000 r--p 00020000 fd:00 45796                      /usr/lib64/ld-2.17.so
3fff7b510000-3fff7b520000 rw-p 00030000 fd:00 45796                      /usr/lib64/ld-2.17.so
3fffe7e00000-3fffe7e30000 rw-p 00000000 00:00 0                          [stack]
t/90threads.t ........................ 
Failed 17/24 subtests 
t/pod.t .............................. ok
t/style-trailing-space.t ............. skipped: Test::TrailingSpace required for trailing space test.

Test Summary Report
-------------------
t/90threads.t                      (Wstat: 6 Tests: 7 Failed: 0)
  Non-zero wait status: 6
  Parse errors: Bad plan.  You planned 24 tests but ran 7.
Files=60, Tests=2471, 51 wallclock secs ( 0.36 usr  0.07 sys + 54.10 cusr 20.88 csys = 75.41 CPU)
Result: FAIL
Failed 1/60 test programs.


Version-Release number of selected component (if applicable):
perl-5.16.3-295.el7

How reproducible:
randomly

Steps to Reproduce:
1. rebuild perl-XML-LibXML package
2.
3.

Actual results:


Expected results:


Additional info:
Comment 2 Petr Pisar 2019-10-30 11:14:24 UTC 
This is a known bug #1224731. The test crashes randomly because the module is not thread-safe. A correct fix is to remove the t/90threads.t test because thread-safeness is not a supported feature by the upstream.
Comment 4 Petr Pisar 2019-11-21 15:16:21 UTC 

*** This bug has been marked as a duplicate of bug 1615923 ***
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