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[Colin Higgs <colin.higgs@xxxxxxxx>]

** Description changed:

  Description:	Ubuntu 12.04 LTS
  Release:	12.04
  
  # apt-cache policy libxml-libxml-perl
  libxml-libxml-perl:
-   Installed: 1.89+dfsg-1
-   Candidate: 1.89+dfsg-1
-   Version table:
-  *** 1.89+dfsg-1 0
-         500 http://gb.archive.ubuntu.com/ubuntu/ precise/main amd64 Packages
-         100 /var/lib/dpkg/status
+   Installed: 1.89+dfsg-1
+   Candidate: 1.89+dfsg-1
+   Version table:
+  *** 1.89+dfsg-1 0
+         500 http://gb.archive.ubuntu.com/ubuntu/ precise/main amd64 Packages
+         100 /var/lib/dpkg/status
  
  perl program testfail.pl:
  
  #!/usr/bin/perl
  
  use XML::LibXML;
  
  my $elt = XML::LibXML::Element->new("top");
  my @nodes = $elt->findnodes("/");
  print @nodes . "\n";
  
  should ouput '1' and a newline.
  
  instead this will randomly either:
  
  - work as expected or,
  - emit something like "PmmREFCNT_dec: REFCNT decremented below 0 for 176c5b0!." and segfault
  
  with roughly equal probability.
  
  I have fixed this for myself by upgrading to the latest version of
- XML::LibXML (1.92 at time of writing):
+ XML::LibXML (1.97 at time of writing):
  
  # cpanm XML::LibXML
  
  I thought it best to submit a bug report so this can be fixed in the
  distribution.
  
  Anyone with the same problem reading this should note that you'll need a
  few things first before the above 'cpanm' command will work:
  
  # apt-get install cpanminus, libxml2-dev, zlib1g-dev
+ 
+ EDIT (it was obviously too late at night for me to be reporting bugs):
+ 
+ 1) I typo'd the new version of XML::LibXML I installed (1.97 instead of
+ 1.92 as originally written).
+ 
+ 2) The new version still doesn't work properly. The following script is
+ enough to cause the original error to reappear:
+ 
+ #!/usr/bin/perl
+ 
+ #use Machination::MPath;
+ use XML::LibXML;
+ my $elt = XML::LibXML::Element->new("top");
+ print $elt->toString . "\n";
+ my @nodes = $elt->findnodes("/");
+ print @nodes . "\n";
+ 
+ Given that the latest version of XML::LibXML still has problems, perhaps
+ this is an upstream bug. It's still early here: I'll investigate later
+ and maybe send a report to the XML::LibXML maintainers.

** Description changed:

  Description:	Ubuntu 12.04 LTS
  Release:	12.04
  
  # apt-cache policy libxml-libxml-perl
  libxml-libxml-perl:
    Installed: 1.89+dfsg-1
    Candidate: 1.89+dfsg-1
    Version table:
   *** 1.89+dfsg-1 0
          500 http://gb.archive.ubuntu.com/ubuntu/ precise/main amd64 Packages
          100 /var/lib/dpkg/status
  
  perl program testfail.pl:
  
  #!/usr/bin/perl
  
  use XML::LibXML;
  
  my $elt = XML::LibXML::Element->new("top");
  my @nodes = $elt->findnodes("/");
  print @nodes . "\n";
  
  should ouput '1' and a newline.
  
  instead this will randomly either:
  
  - work as expected or,
  - emit something like "PmmREFCNT_dec: REFCNT decremented below 0 for 176c5b0!." and segfault
  
  with roughly equal probability.
  
  I have fixed this for myself by upgrading to the latest version of
  XML::LibXML (1.97 at time of writing):
  
  # cpanm XML::LibXML
  
  I thought it best to submit a bug report so this can be fixed in the
  distribution.
  
  Anyone with the same problem reading this should note that you'll need a
  few things first before the above 'cpanm' command will work:
  
  # apt-get install cpanminus, libxml2-dev, zlib1g-dev
  
  EDIT (it was obviously too late at night for me to be reporting bugs):
  
  1) I typo'd the new version of XML::LibXML I installed (1.97 instead of
  1.92 as originally written).
  
  2) The new version still doesn't work properly. The following script is
  enough to cause the original error to reappear:
  
  #!/usr/bin/perl
  
- #use Machination::MPath;
  use XML::LibXML;
  my $elt = XML::LibXML::Element->new("top");
  print $elt->toString . "\n";
  my @nodes = $elt->findnodes("/");
  print @nodes . "\n";
  
  Given that the latest version of XML::LibXML still has problems, perhaps
  this is an upstream bug. It's still early here: I'll investigate later
  and maybe send a report to the XML::LibXML maintainers.

-- 
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https://bugs.launchpad.net/bugs/995670

Title:
  XML::LibXML 1.89 + perl 5.14.2: segfault

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