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This queue is for tickets about the Apache-Session CPAN distribution.

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The Basics
Id: 30440
Status: resolved
Priority: 0/
Queue: Apache-Session

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Owner: CHORNY [...] cpan.org
Requestors: ANDK [...] cpan.org
Cc:
AdminCc:

Bug Information
Severity: Normal
Broken in: 1.84
Fixed in: 1.85



Subject: Cleaning up semaphores
Recently I discovered FAILs in my smokes and the reason was that the system refused to allocate semaphores or message queues or some such IPC stuff. So I knew I had to watch out for leaks in tests and this is my story: Show quoted text
>sand@k75:~/.cpan/build/Apache-Session-1.84-unVxoy% ipcs
Show quoted text
------ Shared Memory Segments -------- key shmid owner perms bytes nattch status
------ Semaphore Arrays -------- key semid owner perms nsems
------ Message Queues -------- key msqid owner perms used-bytes messages
>sand@k75:~/.cpan/build/Apache-Session-1.84-unVxoy% make test
PERL_DL_NONLAZY=1 /home/src/perl/repoperls/installed-perls/perl/pcwzNIg/perl-5.8.0@32213/bin/perl "-MExtUtils::Command::MM" "-e" "test_harness(0, 'blib/lib', 'blib/arch')" t/*.t t/99base64.........ok t/99dbfile.........ok t/99dbfilestore....ok t/99file...........ok t/99filelock.......ok t/99filestore......ok t/99flex...........v-string in use/require non-portable at t/99flex.t line 11. t/99flex...........ok t/99md5gen.........ok t/99moduniqgen.....ok t/99mysql..........skipped all skipped: Not running RDBM tests without APACHE_SESSION_MAINTAINER=1 t/99mysqllock......skipped all skipped: Not running RDBM tests without APACHE_SESSION_MAINTAINER=1 t/99mysqlstore.....skipped all skipped: Not running RDBM tests without APACHE_SESSION_MAINTAINER=1 t/99nulllock.......ok t/99oracle.........skipped all skipped: Not running RDBM tests without APACHE_SESSION_MAINTAINER=1 t/99postgres.......skipped all skipped: Not running RDBM tests without APACHE_SESSION_MAINTAINER=1 t/99semaphore......ok t/99storable.......ok t/99uue............ok All tests successful, 5 tests skipped. Files=18, Tests=130, 13 wallclock secs ( 2.80 cusr + 0.35 csys = 3.15 CPU)
>sand@k75:~/.cpan/build/Apache-Session-1.84-unVxoy% ipcs
------ Shared Memory Segments -------- key shmid owner perms bytes nattch status
------ Semaphore Arrays -------- key semid owner perms nsems 0x00000000 58425354 sand 700 32
------ Message Queues -------- key msqid owner perms used-bytes messages A failing test with a similar perl is here: http://www.nntp.perl.org/group/perl.cpan.testers/2007/11/msg734592.html Thanks,
Fixed in 1.85. -- Alexandr Ciornii, http://chorny.net
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I think I have to reopen but maybe it deserves a new ticket too. I have reached full semaphore space again: http://www.nntp.perl.org/group/perl.cpan.testers/2008/02/msg1011767.html I cleaned it up and ran make test for Apache::Session again and found again a leak of two semaphores. Maybe this is a different leak this time? This time the test failed due to "semctl not implemented" (last time it succeeded). CPAN::Reporter sent a report out but I do not yet have the URL.
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Feb 19 23:31:30 2008, ANDK wrote: Show quoted text
> I think I have to reopen but maybe it deserves a new ticket too. I have > reached full semaphore space again: > > http://www.nntp.perl.org/group/perl.cpan.testers/2008/02/msg1011767.html > > I cleaned it up and ran make test for Apache::Session again and found > again a leak of two semaphores. > > Maybe this is a different leak this time? This time the test failed due > to "semctl not implemented" (last time it succeeded). CPAN::Reporter > sent a report out but I do not yet have the URL.
Check for semctl availability was added in 1.86_01. 1.86_03 (1.87) has this test disabled. -- Alexandr Ciornii, http://chorny.net


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