[Bug 264868] Re: Thread race in glibc timer_delete

[Rolf Leggewie]

Hardy has seen the end of its life and is no longer receiving any
updates. Marking the Hardy task for this ticket as "Won't Fix".

** Changed in: glibc (Ubuntu Hardy)
       Status: Incomplete => Won't Fix

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https://bugs.launchpad.net/bugs/264868

Title:
  Thread race in glibc timer_delete

Status in “glibc” package in Ubuntu:
  Fix Released
Status in “glibc” source package in Hardy:
  Won't Fix

Bug description:
  There is a race between timer_delete freeing memory and the timers helper thread
  accessing that memory.

  Upstream bug...
   http://sourceware.org/bugzilla/show_bug.cgi?id=5220

  Upstream version of glibc already has a patch to fix this. 
   http://sources.redhat.com/cgi-bin/cvsweb.cgi/libc/nptl/sysdeps/unix/sysv/linux/timer_routines.c.diff?r1=1.9&r2=1.10&cvsroot=glibc

  It causes major problems in our timer dependent code and a unknown
  degree of flakiness in any other packages using timer_delete

  Unfortunately it is not something that can be worked around in user
  code.

  
  lsb_release -rd
  Description:	Ubuntu 8.04.1
  Release:	8.04

  apt-cache policy glibc-source
  glibc-source:
    Installed: 2.7-10ubuntu3
    Candidate: 2.7-10ubuntu3
    Version table:
   *** 2.7-10ubuntu3 0
          500 http://parore.tait.co.nz hardy/universe Packages
          100 /var/lib/dpkg/status

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