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This bug was fixed in the package google-perftools -
2.4-0ubuntu5.16.04.1
---------------
google-perftools (2.4-0ubuntu5.16.04.1) xenial; urgency=medium
* d/p/Use-initial-exec-tls-for-libunwind-s-recursion-flag.patch:
Use initial-exec tls for libunwind's recursion flag avoiding
deadlock in dlopen on startup (LP: #1647864).
-- James Page <james.page@xxxxxxxxxx> Tue, 02 May 2017 05:32:42 -0400
** Changed in: google-perftools (Ubuntu Xenial)
Status: Fix Committed => Fix Released
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https://bugs.launchpad.net/bugs/1647864
Title:
google-perftools can deadlock with dlopen on startup
Status in google-perftools package in Ubuntu:
Fix Released
Status in google-perftools source package in Xenial:
Fix Released
Status in google-perftools source package in Yakkety:
Fix Released
Bug description:
[Impact]
Applications use tcmalloc and deadlock on startup (specifically impacting upstream testing of Ceph).
[Test Case]
Hard to reproduce reliably, so we'll perform a regression test with Ceph in Ubuntu and look for feedback from upstream on occurrance of this problem.
[Regression Potential]
Low; patch is already in use in CentOS and RHEL and has been accepted into upstream.
[Original Bug Report]
On the xenial version of libgoogle-perftools, tcmalloc can deadlock with dlopen on startup. This was fixed upstream here:
https://github.com/gperftools/gperftools/issues/786
FWIW el7 also backported this fix to 2.4 to resolve this for us.
The ceph bug tracking this issue is here:
http://tracker.ceph.com/issues/13522
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