Todd Lipcon has submitted this change and it was merged.

Change subject: Suppress a TSAN error when multiple threads LOG(FATAL) 
concurrently
......................................................................


Suppress a TSAN error when multiple threads LOG(FATAL) concurrently

glog internally has a 'fatal_msg_data_shared' global which is used
when more than two threads call LOG(FATAL) at the same time. This
results in races like:

WARNING: ThreadSanitizer: data race (pid=9726)
  Write of size 8 at 0x7f288d596f98 by thread T121:
    #0 localtime_r 
/data1/jenkins-workspace/kudu-workspace/thirdparty/llvm-3.8.0.src/projects/compiler-rt/lib/tsan/../sanitizer_common/sanitizer_common_interceptors.inc:803
 (kudu-tserver+0x000000438fc3)
    #1 google::LogMessage::Init(char const*, int, int, void 
(google::LogMessage::*)()) 
/data1/jenkins-workspace/kudu-workspace/thirdparty/glog-0.3.4/src/logging.cc:1215:3
 (libglog.so.0+0x00000000a9c3)

I reported the issue upstream at https://github.com/google/glog/issues/80
but we can safely suppress it for now, as it only happens in the case
of LOG(FATAL)s.

Change-Id: I825da549c68d5226a8a3735aa6e43b407f258a8e
Reviewed-on: http://gerrit.cloudera.org:8080/2611
Reviewed-by: Adar Dembo <[email protected]>
Tested-by: Kudu Jenkins
---
M build-support/tsan-suppressions.txt
1 file changed, 5 insertions(+), 0 deletions(-)

Approvals:
  Adar Dembo: Looks good to me, approved
  Kudu Jenkins: Verified



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Gerrit-MessageType: merged
Gerrit-Change-Id: I825da549c68d5226a8a3735aa6e43b407f258a8e
Gerrit-PatchSet: 2
Gerrit-Project: kudu
Gerrit-Branch: master
Gerrit-Owner: Todd Lipcon <[email protected]>
Gerrit-Reviewer: Adar Dembo <[email protected]>
Gerrit-Reviewer: Kudu Jenkins
Gerrit-Reviewer: Mike Percy <[email protected]>
Gerrit-Reviewer: Todd Lipcon <[email protected]>

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