[llvm-dev] buildbot failure in LLVM on sanitizer-x86_64-linux-fast

[Greg Parker via llvm-dev]

> On Sep 1, 2016, at 9:20 PM, Greg Parker <gparker at apple.com> wrote:
> 
>> On Sep 1, 2016, at 9:06 PM, llvm.buildmaster at lab.llvm.org wrote:
>> 
>> The Buildbot has detected a new failure on builder sanitizer-x86_64-linux-fast while building llvm.
>> Full details are available at:
>> http://lab.llvm.org:8011/builders/sanitizer-x86_64-linux-fast/builds/16009
> 
> lit.py: /mnt/b/sanitizer-buildbot3/sanitizer-x86_64-linux-fast/build/llvm/utils/lit/lit/formats/googletest.py:39: error: unable to discover google-tests in '/mnt/b/sanitizer-buildbot3/sanitizer-x86_64-linux-fast/build/llvm_build_asan/unittests/MC/MCTests': Command '['/mnt/b/sanitizer-buildbot3/sanitizer-x86_64-linux-fast/build/llvm_build_asan/unittests/MC/MCTests', '--gtest_list_tests']' returned non-zero exit status 1
> 
> This is a new lit error message introduced by r280455. I expect that the MCTests executable is hitting an asan error when run to report what tests it contains. Before r280455 the test silently passed as a result. Now the test fails. 

Nine tests on five builders have test failures here. Again, these are old bugs that were previously undetected.

llvm/unittests/MC
http://lab.llvm.org:8011/builders/sanitizer-x86_64-linux-bootstrap/builds/12834
http://lab.llvm.org:8011/builders/sanitizer-x86_64-linux-fast/builds/16015

tsan/tests/rtl/TsanRtlTest
tsan/tests/unit/TsanUnitTest
http://lab.llvm.org:8011/builders/sanitizer_x86_64-freebsd/builds/13492

unittests/DebugInfo/DWARF
unittests/DebugInfo/PDB
unittests/ExecutionEngine/Orc
unittests/ExecutionEngine/MCJIT
unittests/Transforms/IPO
unittests/Transforms/Utils
http://lab.llvm.org:8011/builders/llvm-mips-linux/builds/17616
http://lab.llvm.org:8011/builders/clang-ppc64le-linux-multistage/builds/2331

If we need to get these builders clean quickly we can temporarily downgrade the new error to a warning. Patch:

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-- 
Greg Parker     gparker at apple.com     Runtime Wrangler