[Bug 1647864] Re: google-perftools can deadlock with dlopen on startup
James Page
james.page at ubuntu.com
Fri May 5 14:48:28 UTC 2017
Re-uploaded to yakkety-proposed including the required patch
(apologies).
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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:
In Progress
Status in google-perftools source package in Yakkety:
In Progress
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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