[llvm-dev] [LLD] [WASM] wasm/function-index.test failing

[Rui Ueyama via llvm-dev]

I cannot reproduce this error, but this could be real.

David, is this reproducible every time or is this flaky?

On Mon, Jan 7, 2019 at 5:03 PM Heejin Ahn via llvm-dev <
llvm-dev at lists.llvm.org> wrote:

> Hello David,
>
> I use x86_64 and it works on my machine. I also can't find this error on
> LLVM buildbot page. I'd appreciate if you help me reproduce the problem. I
> tested with debug/release/expensive-check builds and they all passed. Does
> anyone else have this problem?
>
> Regards,
> Heejin
>
> On Mon, Jan 7, 2019 at 10:11 AM David Greene via llvm-dev <
> llvm-dev at lists.llvm.org> wrote:
>
>> I'm seeing the following fail on Linux x86-64, for the last couple weeks
>> at least.  This is from 'ninja check-all'.
>>
>>                                  -David
>>
>> FAIL: lld :: wasm/function-index.test (1941 of 1955)
>> ******************** TEST 'lld :: wasm/function-index.test' FAILED
>> ********************
>> Script:
>> --
>> : 'RUN: at line 1';   /build/x86_64/bin/llc -filetype=obj
>> /src/lld/test/wasm/Inputs/ret32.ll -o
>> /build/x86_64/tools/lld/test/wasm/Output/function-index.test.tmp.ret32.o
>> : 'RUN: at line 2';   /build/x86_64/bin/llc -filetype=obj
>> /src/lld/test/wasm/Inputs/ret64.ll -o
>> /build/x86_64/tools/lld/test/wasm/Output/function-index.test.tmp.ret64.o
>> : 'RUN: at line 3';   /build/x86_64/bin/wasm-ld -r -o
>> /build/x86_64/tools/lld/test/wasm/Output/function-index.test.tmp.wasm
>> /build/x86_64/tools/lld/test/wasm/Output/function-index.test.tmp.ret32.o
>> /build/x86_64/tools/lld/test/wasm/Output/function-index.test.tmp.ret64.o
>> : 'RUN: at line 4';   /build/x86_64/bin/obj2yaml
>> /build/x86_64/tools/lld/test/wasm/Output/function-index.test.tmp.wasm |
>> /build/x86_64/bin/FileCheck /src/lld/test/wasm/function-index.test
>> --
>> Exit Code: 139
>>
>> Command Output (stderr):
>> --
>> + : 'RUN: at line 1'
>> + /build/x86_64/bin/llc -filetype=obj /src/lld/test/wasm/Inputs/ret32.ll
>> -o /build/x86_64/tools/lld/test/wasm/Output/function-index.test.tmp.ret32.o
>> + : 'RUN: at line 2'
>> + /build/x86_64/bin/llc -filetype=obj /src/lld/test/wasm/Inputs/ret64.ll
>> -o /build/x86_64/tools/lld/test/wasm/Output/function-index.test.tmp.ret64.o
>> + : 'RUN: at line 3'
>> + /build/x86_64/bin/wasm-ld -r -o
>> /build/x86_64/tools/lld/test/wasm/Output/function-index.test.tmp.wasm
>> /build/x86_64/tools/lld/test/wasm/Output/function-index.test.tmp.ret32.o
>> /build/x86_64/tools/lld/test/wasm/Output/function-index.test.tmp.ret64.o
>> Stack dump:
>> 0.      Program arguments: /build/x86_64/bin/wasm-ld -r -o
>> /build/x86_64/tools/lld/test/wasm/Output/function-index.test.tmp.wasm
>> /build/x86_64/tools/lld/test/wasm/Output/function-index.test.tmp.ret32.o
>> /build/x86_64/tools/lld/test/wasm/Output/function-index.test.tmp.ret64.o
>>  #0 0x0000000000571d1a llvm::sys::PrintStackTrace(llvm::raw_ostream&)
>> (/build/x86_64/bin/wasm-ld+0x571d1a)
>>  #1 0x000000000056f538 llvm::sys::RunSignalHandlers()
>> (/build/x86_64/bin/wasm-ld+0x56f538)
>>  #2 0x000000000056f64c SignalHandler(int)
>> (/build/x86_64/bin/wasm-ld+0x56f64c)
>>  #3 0x00007f7578656b00 __restore_rt (/lib64/libpthread.so.0+0x10b00)
>>  #4 0x00000000005b618b
>> llvm::SpecificBumpPtrAllocator<std::unique_ptr<llvm::MemoryBuffer,
>> std::default_delete<llvm::MemoryBuffer> > >::DestroyAll()
>> (/build/x86_64/bin/wasm-ld+0x5b618b)
>>  #5 0x000000000091af30 lld::freeArena()
>> (/build/x86_64/bin/wasm-ld+0x91af30)
>>  #6 0x00000000007b9e5c lld::wasm::link(llvm::ArrayRef<char const*>, bool,
>> llvm::raw_ostream&) (/build/x86_64/bin/wasm-ld+0x7b9e5c)
>>  #7 0x00000000004a67cf main (/build/x86_64/bin/wasm-ld+0x4a67cf)
>>  #8 0x00007f7576e656e5 __libc_start_main (/lib64/libc.so.6+0x206e5)
>>  #9 0x0000000000557729 _start
>> /home/abuild/rpmbuild/BUILD/glibc-2.22/csu/../sysdeps/x86_64/start.S:121:0
>> /build/x86_64/tools/lld/test/wasm/Output/function-index.test.script: line
>> 4: 368695 Segmentation fault      /build/x86_64/bin/wasm-ld -r -o
>> /build/x86_64/tools/lld/test/wasm/Output/function-index.test.tmp.wasm
>> /build/x86_64/tools/lld/test/wasm/Output/function-index.test.tmp.ret32.o
>> /build/x86_64/tools/lld/test/wasm/Output/function-index.test.tmp.ret64.o
>>
>>                                         -David
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