tree 88142212532717ef4e2435420493eeab02d1eb11
parent 4811e726711e42781e7b9d56763588cef796e2f0
author Mathieu Chartier <mathieuc@google.com> 1465603460 -0700
committer Mathieu Chartier <mathieuc@google.com> 1465606356 -0700

Use ScopedObjectAccess in ThreadList::Dump

Prevent deadlocks if two different threads are calling Dump at the
same time:

Thread 1: Requests thread 2 to suspend
Thread 2: Requests thread 1 to suspend
Both threads are suspended and blocked on ScopedObjectAccess in
thread dumping.

Added to suspend all stress, reduced thread count to 4 temporarily
since this is the maximum number of simultaneous checkpoints.

Bug: 28988206

Change-Id: I9e4b8391ebad0bca0e42a03819c58c99ddba6b35