[llvm-dev] greendragon build noisy due to mmap_stress.cc

Tue Jan 12 12:35:35 PST 2016

Hi,

one of the greendragon bots is flaky due to mmap_stress.cc in compiler-rt.

In the last two days this bot failed three times (and recovered) due to 
thhe mmap_stress.cc test in compiler-rt:

http://lab.llvm.org:8080/green/job/clang-stage1-cmake-RA_check/9557/testReport/
http://lab.llvm.org:8080/green/job/clang-stage1-cmake-RA_check/9551/testReport/
http://lab.llvm.org:8080/green/job/clang-stage1-cmake-RA_check/9532/testReport/

Dmitry Vyukov, you seem to have committed this test case back in March.
Could you possibly have a look?

CCed Michael who owns this bot (afaiu).

Best,
Tobias

---------- Forwarded message ----------
From: ** <llvm.greendragon at gmail.com <mailto:llvm.greendragon at gmail.com>>
Date: 2016-01-13 0:00 GMT+05:00
Subject: Clang Stage 1: cmake, RA, using system compiler (Check) - Build
# 9557 - Failure!
To: Roman Gareev <gareevroman at gmail.com <mailto:gareevroman at gmail.com>>,
Simon Atanasyan <simon at atanasyan.com <mailto:simon at atanasyan.com>>,
Teresa Johnson <tejohnson at google.com <mailto:tejohnson at google.com>>,
Sanjay Patel <spatel at rotateright.com <mailto:spatel at rotateright.com>>
Cc: Mikhail Zolotukhin <mzolotukhin at apple.com
<mailto:mzolotukhin at apple.com>>

__

   [FAILURE] clang-stage1-cmake-RA_check [#9557]

Build URL:
http://lab.llvm.org:8080/green/job/clang-stage1-cmake-RA_check/9557/
Project:	clang-stage1-cmake-RA_check
Date of build:	Tue, 12 Jan 2016 10:37:00 -0800
Build duration:	23 min

     Identified problems:

   * Regression test failed: This build failed because a regression test
     in the test suite FAILed. See the test report <http://testReport/>
     for details.
       o Indication 1

<http://lab.llvm.org:8080/green//job/clang-stage1-cmake-RA_check/9557/consoleFull#-2455948548254eaf0-7326-4999-85b0-388101f2d404>
   * Ninja target failed: Below is a link to the first failed ninja target.
       o Indication 1

<http://lab.llvm.org:8080/green//job/clang-stage1-cmake-RA_check/9557/consoleFull#-676809979a1ca8a51-895e-46c6-af87-ce24fa4cd561>

     Tests:

Name: *AddressSanitizer-Unit*
Failed: 0 test(s), Passed: 486 test(s), Total: 486 test(s)
Name: *AddressSanitizer-i386-darwin*
Failed: 0 test(s), Passed: 345 test(s), Total: 345 test(s)
Name: *AddressSanitizer-x86_64-darwin*
Failed: 0 test(s), Passed: 345 test(s), Total: 345 test(s)
Name: *Clang*
Failed: 0 test(s), Passed: 7496 test(s), Total: 7496 test(s)
Name: *Clang Tools*
Failed: 0 test(s), Passed: 156 test(s), Total: 156 test(s)
Name: *Clang-Unit*
Failed: 0 test(s), Passed: 1385 test(s), Total: 1385 test(s)
Name: *Extra Tools Unit Tests*
Failed: 0 test(s), Passed: 73 test(s), Total: 73 test(s)
Name: *LLVM*
Failed: 0 test(s), Passed: 14153 test(s), Total: 14153 test(s)
Name: *LLVM-Unit*
Failed: 0 test(s), Passed: 1428 test(s), Total: 1428 test(s)
Name: *Profile*
Failed: 0 test(s), Passed: 25 test(s), Total: 25 test(s)
Name: *SafeStack*
Failed: 0 test(s), Passed: 7 test(s), Total: 7 test(s)
Name: *SanitizerCommon-Unit*
Failed: 0 test(s), Passed: 225 test(s), Total: 225 test(s)
Name: *SanitizerCommon-asan*
Failed: 0 test(s), Passed: 68 test(s), Total: 68 test(s)
Name: *ThreadSanitizer*
Failed: 1 test(s), Passed: 212 test(s), Total: 213 test(s)
*

   * Failed: ThreadSanitizer.ThreadSanitizer.mmap_stress.cc

<http://lab.llvm.org:8080/green/job/clang-stage1-cmake-RA_check/9557/testReport/junit/ThreadSanitizer/ThreadSanitizer/mmap_stress_cc>

*
Name: *UBSan-ASan-i386*
Failed: 0 test(s), Passed: 34 test(s), Total: 34 test(s)
Name: *UBSan-ASan-x86_64*
Failed: 0 test(s), Passed: 34 test(s), Total: 34 test(s)
Name: *UBSan-Standalone-i386*
Failed: 0 test(s), Passed: 34 test(s), Total: 34 test(s)
Name: *UBSan-Standalone-x86_64*
Failed: 0 test(s), Passed: 34 test(s), Total: 34 test(s)
Name: *UBSan-TSan-x86_64*
Failed: 0 test(s), Passed: 34 test(s), Total: 34 test(s)
Name: *cfi*
Failed: 0 test(s), Passed: 17 test(s), Total: 17 test(s)
Name: *libc++*
Failed: 0 test(s), Passed: 5023 test(s), Total: 5023 test(s)

     Changes

   * Commit *257497* by *spatel:*

     function names start with a lower case letter ; NFC

       o *edit*: llvm-revision.src/cfe/trunk/lib/CodeGen/CodeGenFunction.cpp

   * Commit *257496* by *spatel:*

     function names start with a lower case letter ; NFC

       o *edit*: llvm-revision.src/llvm/trunk/include/llvm/IR/IRBuilder.h
       o *edit*:

llvm-revision.src/llvm/trunk/lib/Transforms/InstCombine/InstCombineMulDivRem.cpp
       o *edit*:

llvm-revision.src/llvm/trunk/lib/Transforms/InstCombine/InstCombineSelect.cpp
       o *edit*:
         llvm-revision.src/llvm/trunk/lib/Transforms/Utils/LoopUtils.cpp
       o *edit*:

llvm-revision.src/llvm/trunk/lib/Transforms/Utils/SimplifyLibCalls.cpp
       o *edit*:

llvm-revision.src/llvm/trunk/lib/Transforms/Vectorize/SLPVectorizer.cpp
       o *edit*: llvm-revision.src/llvm/trunk/unittests/IR/IRBuilderTest.cpp

   * Commit *257495* by *romangareev:*

     We do not need to schedule another loop interchange pass after
     Polly, as Polly should perform loop interchanges itself. This also
     fixes a bug we see due to the "loop-interchange" pass producing
     incorrect IR when compiling linpack-pc.c from the LLVM test-suite
     with "-polly-position=before-vectorizer". Reviewed-by: Tobias
     Grosser ____

       o *edit*: 
llvm-revision.src/polly/trunk/lib/CodeGen/CodegenCleanup.cpp

   * Commit *257494* by *tejohnson:*

     Fix bot failure from r257493: remove extraneous temp file read This
     was left from an earlier version of the test.

       o *edit*:

llvm-revision.src/llvm/trunk/test/Transforms/FunctionImport/funcimport_alias.ll

   * Commit *257493* by *tejohnson:*

     [ThinLTO] Handle an external call from an import to an alias in dest
     The findExternalCalls routine ignores calls to functions already
     defined in the dest module. This was not handling the case where the
     definition in the current module is actually an alias to a function
     call.

       o *edit*:
         llvm-revision.src/llvm/trunk/lib/Transforms/IPO/FunctionImport.cpp
       o *add*:

llvm-revision.src/llvm/trunk/test/Transforms/FunctionImport/Inputs/funcimport_alias.ll
       o *add*:

llvm-revision.src/llvm/trunk/test/Transforms/FunctionImport/funcimport_alias.ll

   * Commit *257492* by *atanasyan:*

     [ELF][MIPS] Do not create dynamic relocations against _gp_disp
     symbol MIPS _gp_disp designates offset between start of function and
     gp pointer into GOT therefore any relocations against it do not
     require dynamic relocation.

       o *edit*: llvm-revision.src/lld/trunk/ELF/Writer.cpp
       o *edit*: llvm-revision.src/lld/trunk/test/ELF/mips-gp-disp.s

   * Commit *257491* by *spatel:*

     [LibCallSimplifier] use instruction-level fast-math-flags to
     transform pow(exp(x)) calls See also:
     http://reviews.llvm.org/rL255555 http://reviews.llvm.org/rL256871
     http://reviews.llvm.org/rL256964 http://reviews.llvm.org/rL257400
     http://reviews.llvm.org/rL257404 http://reviews.llvm.org/rL257414

       o *edit*:

llvm-revision.src/llvm/trunk/lib/Transforms/Utils/SimplifyLibCalls.cpp
       o *edit*:
         llvm-revision.src/llvm/trunk/test/Transforms/InstCombine/pow-exp.ll