[llvm-dev] greendragon build noisy due to mmap_stress.cc
Kostya Serebryany via llvm-dev
llvm-dev at lists.llvm.org
Tue Jan 12 13:26:09 PST 2016
Hi Tobias,
What machine is that?
We have seen this and similar tests be flaky on older Linux kernels due to
kernel bug(s).
May I ask you to run the same test (just built with clang) on the same
machine for ~100000 times and see if it ever crashes?
clang++ ~/llvm/projects/compiler-rt/test/tsan/mmap_stress.cc -lpthread
while true; do for((i=0;i<10;i++)); do ./a.out || echo
===============FAILED================ & done ; wait; done
On Tue, Jan 12, 2016 at 12:35 PM, Tobias Grosser via llvm-dev <
llvm-dev at lists.llvm.org> wrote:
> 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
>
>
>
> _______________________________________________
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> llvm-dev at lists.llvm.org
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>
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