tag 0867f8db5af71aa9048a2fc8873e66b5e8a3a6a8
tagger The Android Open Source Project <initial-contribution@android.com> Wed Nov 11 09:31:12 2020 -0800
object a3b75aea04f875da146c3ef71912e95f5ee903ac

Android CTS 11.0 Release 2 (6965179)

commit a3b75aea04f875da146c3ef71912e95f5ee903ac
author Hans Boehm <hboehm@google.com> Mon Jul 13 10:49:13 2020 -0700
committer Hans Boehm <hboehm@google.com> Tue Jul 14 17:58:03 2020 -0700
tree 88d328e3b2eb653b7417d1d640f0596f1a8cf16e
parent 337cf0aa8a455479ca0bcb53a484fd9046c06a91

Invoke futex wait with correct value

If we were woken up early, Mutex::ExclusiveLock() would mistakenly
retry the wait with the original state_and_contenders value,
in spite of the fact that the contenders part might have changed.
This could turn a mutex wait loop into a spin loop, causing
a battery issue, and an occasional livelock issue. Fix that
oversight.

Bug: 161005897
Test: Treehugger
Change-Id: Ie98ad188d0edbd9d9359954efa08d03e833f167b
Merged-In: Ie98ad188d0edbd9d9359954efa08d03e833f167b
(cherry picked from commit d4e6a992ad3b08585cbe50b7b55d23833ad32727)