[Boost-bugs] [Boost C++ Libraries] #3494: Boost::Test enters endless loop when running in vserver environment

Subject: [Boost-bugs] [Boost C++ Libraries] #3494: Boost::Test enters endless loop when running in vserver environment
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2009-09-29 07:11:05

#3494: Boost::Test enters endless loop when running in vserver environment
--------------------------------------------------+-------------------------
 Reporter:  Eduard Hein <eduard_hein@…>           |       Owner:  rogeeff
     Type:  Bugs                                  |      Status:  new    
Milestone:  Boost 1.41.0                          |   Component:  test   
  Version:  Boost 1.40.0                          |    Severity:  Problem
 Keywords:                                        |  
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 Boost::Test tries to find out if a debugger is attached by iterating
 through the process tree until ppid 0 is reached. Some vserver kernel
 emulate the init process in a way that ppid of process 1 is 1. This lets
 the debugger search function go into an endless loop.

 Since pid 1 is unlikely to be a debugger, we can safely ignore
 pid 1 and just quit searching when we reach pid 1 instead of 0. The
 attached patch implements this.

 We observed this bug with standard Debian Lenny vserver host (linux-
 image-2.6.26-2-vserver-amd64) running Debian Lenny guest and Centos 5
 guest.

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Ticket URL: <https://svn.boost.org/trac/boost/ticket/3494>
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