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This queue is for tickets about the PAR-Packer CPAN distribution.

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The Basics
Id: 118094
Status: resolved
Priority: 0/
Queue: PAR-Packer

People
Owner: Nobody in particular
Requestors: mrose [...] sjm.com
Cc:
AdminCc:

Bug Information
Severity: Important
Broken in:
  • 1.017
  • 1.032
Fixed in: 1.035_002



Subject: Race condition exists when building cache for pp built executables
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Perl version: 5.16.3 OS: RHEL 7.2 I receive errors similar to the following when running pp built executables. Data/Dumper.pm did not return a true value at /usr/share/perl5/site_perl/CUSTOMMODULEA.pm line 23. IO/Socket.pm did not return a true value at /usr/share/perl5/site_perl/CUSTOMMODULEB.pm line 63. These errors only seem to occur when: 1. multiple instances of the executable is started simultaneously; the more instances started the more likely the problem is to occur. 2. The par cache for the executable has not been built yet (e.g. the executable has never been run or rm -rf /tmp/par-UNIQUEID) PP Version: PAR Packager, version 1.017 (PAR version 1.010) [also tried PAR Packager, version 1.032-2] PP Command: pp -c -f Bleach -F Bleach -o target src.pl Note: I think the same problem would occur even if the script and modules weren't being "bleached".
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On 2016-09-26 16:31:25, mrose@sjm.com wrote: Show quoted text
> These errors only seem to occur when: > 1. multiple instances of the executable is started simultaneously; the > more instances started the more likely the problem is to occur.
Yeah, during bootstrap (and later) files are extracted from the executable and written to the cache area without any precaution that several concurrently running processes might do the same. Fixed in versions PAR 1.014 and PAR::Packer 1.036, just uploaded to CPAN. Cheers, Roderich


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