| Issue |
182227
|
| Summary |
[Flaky test] llvm/unittests/Support/Caching.cpp
|
| Labels |
new issue
|
| Assignees |
|
| Reporter |
shafik
|
This test failed for me:
https://lab.llvm.org/buildbot/#/builders/94/builds/15466
and it looks like it fails intermittently. It looks like `WriteAfterCommit` is the problematic test:
```console
@@@BUILD_STEP sanitizer logs: stage2/msan check@@@
==SupportTests==1818925==ERROR: MemorySanitizer: SEGV on unknown address 0x000000000018 (pc 0xfffff7ae0568 bp 0xe32000013d00 sp 0xe32000013bf0 T1818925)
==SupportTests==1818925==The signal is caused by a READ memory access.
==SupportTests==1818925==Hint: address points to the zero page.
#0 0xfffff7ae0568 in syscall (/lib/aarch64-linux-gnu/libc.so.6+0xf0568) (BuildId: 399cf29a11ad91a5d31f063a4869f3535e7a4b7a)
#1 0xaaaaabd00e50 in SignalHandler(int, siginfo_t*, void*) /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/llvm/lib/Support/Unix/Signals.inc:448:7
#2 0xaaaaaadee964 in SignalAction(int, void*, void*) /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/compiler-rt/lib/msan/msan_interceptors.cpp:1166:3
#3 0xfffff7ffa9bc (linux-vdso.so.1+0x9bc) (BuildId: 41805f0c6eb974be8f97fe2dae4a43021fa91496)
#4 0xaaaaabcb8588 in llvm::raw_ostream::write(char const*, unsigned long) /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/llvm/lib/Support/raw_ostream.cpp:237:28
#5 0xaaaaaaf4b2a0 in Caching_WriteAfterCommit_Test::TestBody() /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/llvm/unittests/Support/Caching.cpp:109:20
#6 0xaaaaabd3d090 in HandleExceptionsInMethodIfSupported<testing::Test, void> /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/third-party/unittest/googletest/src/gtest.cc
#7 0xaaaaabd3d090 in testing::Test::Run() /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/third-party/unittest/googletest/src/gtest.cc:2688:5
#8 0xaaaaabd3f62c in testing::TestInfo::Run() /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/third-party/unittest/googletest/src/gtest.cc:2837:11
#9 0xaaaaabd41130 in testing::TestSuite::Run() /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/third-party/unittest/googletest/src/gtest.cc:3016:30
#10 0xaaaaabd66a3c in testing::internal::UnitTestImpl::RunAllTests() /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/third-party/unittest/googletest/src/gtest.cc:5921:44
#11 0xaaaaabd65a98 in HandleExceptionsInMethodIfSupported<testing::internal::UnitTestImpl, bool> /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/third-party/unittest/googletest/src/gtest.cc
#12 0xaaaaabd65a98 in testing::UnitTest::Run() /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/third-party/unittest/googletest/src/gtest.cc:5485:10
#13 0xaaaaabd14d80 in RUN_ALL_TESTS /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/third-party/unittest/googletest/include/gtest/gtest.h:2317:73
#14 0xaaaaabd14d80 in main /home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm-project/third-party/unittest/UnitTestMain/TestMain.cpp:55:10
#15 0xfffff7a122d8 (/lib/aarch64-linux-gnu/libc.so.6+0x222d8) (BuildId: 399cf29a11ad91a5d31f063a4869f3535e7a4b7a)
#16 0xfffff7a123b8 in __libc_start_main (/lib/aarch64-linux-gnu/libc.so.6+0x223b8) (BuildId: 399cf29a11ad91a5d31f063a4869f3535e7a4b7a)
#17 0xaaaaaad7282c in _start (/home/b/sanitizer-aarch64-linux-bootstrap-msan/build/llvm_build_msan/unittests/Support/SupportTests+0x2d282c)
```
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