[Bug 1081734] Re: malloc hangs when ltp mallocstress is run repeatedly

[Launchpad Bug Tracker]

This bug was fixed in the package eglibc - 2.16-0ubuntu7

---------------
eglibc (2.16-0ubuntu7) raring; urgency=low

  * Merge with 2.16-0experimental1 from Debian, bringing in my
    upstream version of the C++ header autodetection patch, some
    packaging and upgrade fixes, and reducing our delta further.
  * Fix debian/tests/control syntax for autopkgtest (LP: #1081500)
  * Add patch ubuntu/local-disable-nscd-netgroup-caching.diff to
    disable netgroup caching in the default config (LP: #1068889)
  * Backport any/cvs-malloc-deadlock.diff from upstream to prevent
    glibc deadlocking in mallock arena retry paths (LP: #1081734)
 -- Adam Conrad <adconrad at ubuntu.com>   Sun, 25 Nov 2012 19:00:46 -0700

** Changed in: eglibc (Ubuntu)
       Status: Fix Committed => Fix Released

-- 
You received this bug notification because you are a member of Ubuntu
Foundations Bugs, which is subscribed to eglibc in Ubuntu.
https://bugs.launchpad.net/bugs/1081734

Title:
  malloc hangs when ltp mallocstress is run repeatedly

Status in “eglibc” package in Ubuntu:
  Fix Released
Status in “eglibc” source package in Precise:
  New

Bug description:
  - malloc sleeps continously when the mallocstress application which part of ltp package is executed in a loop.
  - From gdb backtrace it appears to be for a futex to be released in libc code. This is deadlock in glibc

  There are some discussions going on for including this fix in next eglibc release. 
  emails 
  http://sourceware.org/ml/libc-alpha/2012-06/msg00648.html
  http://permalink.gmane.org/gmane.comp.lib.glibc.alpha/23397
  http://sourceware.org/ml/libc-alpha/2012-07/msg00027.html
  http://sourceware.org/ml/libc-alpha/2012-08/msg00163.html
  http://permalink.gmane.org/gmane.linux.redhat.fedora.extras.cvs/832985

  discussion in http://sourceware-org.1504.n7.nabble.com/BZ-13939
  -malloc-deadlock-td13648.html#none

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/eglibc/+bug/1081734/+subscriptions