https://bugzilla.redhat.com/show_bug.cgi?id=1107543 Bug ID: 1107543 Summary: Perl core-dumps if a hash is tied to SDBM_File before spawning a thread Product: Fedora Version: 19 Component: perl Severity: medium Assignee: jplesnik@xxxxxxxxxx Reporter: ppisar@xxxxxxxxxx QA Contact: extras-qa@xxxxxxxxxxxxxxxxx CC: cweyl@xxxxxxxxxxxxxxx, iarnell@xxxxxxxxx, jplesnik@xxxxxxxxxx, kasal@xxxxxx, perl-devel@xxxxxxxxxxxxxxxxxxxxxxx, ppisar@xxxxxxxxxx, psabata@xxxxxxxxxx, rc040203@xxxxxxxxxx, tbowling@xxxxxxxxxx, tcallawa@xxxxxxxxxx +++ This bug was initially created as a clone of Bug #1107542 +++ +++ This bug was initially created as a clone of Bug #1104827 +++ Description of problem: Perl script using SDBM_File module is core dumping. Seems to match this upstream bug: https://rt.perl.org/Public/Bug/Display.html?id=61912#txn-515026 [...] Steps to Reproduce: Create reproducer test script sdbm_test.pl containing the following lines, as described in the upstream bug report: #!/usr/bin/perl use strict; use Fcntl; use SDBM_File; use threads; use threads::shared; my %dbtest; tie(%dbtest, 'SDBM_File', "test.db", O_RDWR|O_CREAT, 0666); for (1 .. 2) { my $thr = threads->new(\&testThread, $_); $thr->detach(); } sleep 4; sub testThread { my $n = shift; print "thread #" . $n . " started\n"; } Make script executable and run which produces the following output: [root@util6vm ~]# chmod u+x sdbm_test.pl [root@util6vm ~]# ./sdbm_test.pl Expected results: No errors. Actual results: thread #1 started thread #2 started *** glibc detected *** /usr/bin/perl: double free or corruption (out): 0x0000000000e2c2c0 *** ======= Backtrace: ========= /lib64/libc.so.6[0x3d2ca76166] /lib64/libc.so.6[0x3d2ca78c93] /usr/lib64/perl5/auto/SDBM_File/SDBM_File.so(XS_SDBM_File_DESTROY+0xc0)[0x7f9d58fb06f0] [...] --- Additional comment from Petr Pisar on 2014-06-05 05:56:58 GMT --- This happens with any perl, even the development version. ---- All Fedoras are affected. -- You are receiving this mail because: You are on the CC list for the bug. Unsubscribe from this bug https://bugzilla.redhat.com/token.cgi?t=sO59ARuC6M&a=cc_unsubscribe -- Fedora Extras Perl SIG http://www.fedoraproject.org/wiki/Extras/SIGs/Perl perl-devel mailing list perl-devel@xxxxxxxxxxxxxxxxxxxxxxx https://admin.fedoraproject.org/mailman/listinfo/perl-devel
