[Bug 1427981] Re: pthread_join failure

[Adam Conrad]

What versions of glibc and gcc were you testing on CentOS and Fedora?
"Doesn't happen on other distros" isn't very helpful without that.

-- 
You received this bug notification because you are a member of Ubuntu
Foundations Bugs, which is subscribed to glibc in Ubuntu.
https://bugs.launchpad.net/bugs/1427981

Title:
  pthread_join failure

Status in glibc package in Ubuntu:
  New

Bug description:
  pthread_join() appears to behave differently depending on gcc
  optimization is on or off. Build the attached source file with gcc -O2
  or gcc -O0 has shown different joining results.

  E.g., with `gcc pthread_join.c -lpthread -g -O2` it passes without
  issue.

  with `gcc pthread_join.c -lpthread -g -O0`, the program fails at
  pthread_join() with ESRCH.

  The same does not happen on other distros (tested on CentOS and
  Fedora).

  Some additional info:

  [macbeth at tests]$cat /etc/issue
  Ubuntu 14.04 LTS \n \l

  [macbeth at tests]$gcc --version
  gcc (Ubuntu 4.8.2-19ubuntu1) 4.8.2
  Copyright (C) 2013 Free Software Foundation, Inc.
  This is free software; see the source for copying conditions.  There is NO
  warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

  [macbeth at tests]$dpkg -l libc6
  Desired=Unknown/Install/Remove/Purge/Hold
  | Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
  |/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
  ||/ Name                                   Version                  Architecture             Description
  +++-======================================-========================-========================-==================================================================================
  ii  libc6:amd64                            2.19-0ubuntu6            amd64                    Embedded GNU C Library: Shared libraries

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/glibc/+bug/1427981/+subscriptions