[llvm-dev] lib/CodeGen/AsmPrinter/DwarfDebug.h:131: void llvm::DbgVariable::addMMIEntry(const llvm::DbgVariable&): Assertion `V.Var == Var && "conflicting variable"' failed.

Tue May 9 10:53:25 PDT 2017

Thanks again! The bots are delighted :)

On Tue, May 9, 2017 at 9:47 AM, Reid Kleckner <rnk at google.com> wrote:

> This wasn't either of my changes, it was actually Adrian's r302469, which
> Hans reverted this morning. See http://llvm.org/PR32977
>
> On Mon, May 8, 2017 at 6:56 PM, Reid Kleckner <rnk at google.com> wrote:
>
>> I take it back, that build doesn't have that revision. It could be r302461,
>> which is from the first failing build: http://lab.llvm.org:801
>> 1/builders/sanitizer-x86_64-linux/builds/1815
>>
>> That revision is much safer, though. I am rebuilding with debug info
>> enabled. First I ran check-msan without RelWithDebInfo, and of course I
>> didn't reproduce the problem.
>>
>> On Mon, May 8, 2017 at 6:28 PM, Kostya Serebryany <kcc at google.com> wrote:
>>
>>> Thanks!
>>>
>>> On Mon, May 8, 2017 at 6:25 PM, Reid Kleckner <rnk at google.com> wrote:
>>>
>>>> I give it 99% odds it was r302483. Let's revert and debug it tomorrow.
>>>>
>>>> On Mon, May 8, 2017 at 6:20 PM, Kostya Serebryany via llvm-dev <
>>>> llvm-dev at lists.llvm.org> wrote:
>>>>
>>>>> David, Dean, all,
>>>>>
>>>>> The bots got red today with assertion failures in
>>>>> llvm::DbgVariable::addMMIEntry:
>>>>> http://lab.llvm.org:8011/builders/sanitizer-x86_64-linux/bui
>>>>> lds/1816/steps/check-msan%20in%20gcc%20build/logs/stdio
>>>>> I did not find the offender yet. Any ideas?
>>>>>
>>>>> clang-5.0: /mnt/b/sanitizer-buildbot1/sanitizer-x86_64-linux/build/llvm/lib/CodeGen/AsmPrinter/DwarfDebug.h:131: void llvm::DbgVariable::addMMIEntry(const llvm::DbgVariable&): Assertion `V.Var == Var && "conflicting variable"' failed.
>>>>> clang-5.0: /mnt/b/sanitizer-buildbot1/sanitizer-x86_64-linux/build/llvm/lib/CodeGen/AsmPrinter/DwarfDebug.h:131: void llvm::DbgVariable::addMMIEntry(const llvm::DbgVariable&): Assertion `V.Var == Var && "conflicting variable"' failed.
>>>>> #0 0x0000000002000bea llvm::sys::PrintStackTrace(llvm::raw_ostream&) /mnt/b/sanitizer-buildbot1/sanitizer-x86_64-linux/build/llvm/lib/Support/Unix/Signals.inc:402:0
>>>>> #1 0x0000000001ffea1e llvm::sys::RunSignalHandlers() /mnt/b/sanitizer-buildbot1/sanitizer-x86_64-linux/build/llvm/lib/Support/Signals.cpp:44:0
>>>>> #2 0x0000000001ffeb92 SignalHandler(int) /mnt/b/sanitizer-buildbot1/sanitizer-x86_64-linux/build/llvm/lib/Support/Unix/Signals.inc:242:0
>>>>> #3 0x00007fa903bee390 __restore_rt (/lib/x86_64-linux-gnu/libpthread.so.0+0x11390)
>>>>> #4 0x00007fa902b7b428 gsignal (/lib/x86_64-linux-gnu/libc.so.6+0x35428)
>>>>> #5 0x00007fa902b7d02a abort (/lib/x86_64-linux-gnu/libc.so.6+0x3702a)
>>>>> #6 0x00007fa902b73bd7 (/lib/x86_64-linux-gnu/libc.so.6+0x2dbd7)
>>>>> #7 0x00007fa902b73c82 (/lib/x86_64-linux-gnu/libc.so.6+0x2dc82)
>>>>> #8 0x0000000002601cd4 llvm::DbgVariable::addMMIEntry(llvm::DbgVariable const&) /mnt/b/sanitizer-buildbot1/sanitizer-x86_64-linux/build/llvm/lib/CodeGen/AsmPrinter/DwarfDebug.h:130:0
>>>>> #9 0x0000000002601cd4 llvm::DwarfFile::addScopeVariable(llvm::LexicalScope*, llvm::DbgVariable*) /mnt/b/sanitizer-buildbot1/sanitizer-x86_64-linux/build/llvm/lib/CodeGen/AsmPrinter/DwarfFile.cpp:104:0
>>>>> #10 0x00000000025f5a29 llvm::DwarfDebug::createAbstractVariable(llvm::DILocalVariable const*, llvm::LexicalScope*) /mnt/b/sanitizer-buildbot1/sanitizer-x86_64-linux/build/llvm/lib/CodeGen/AsmPrinter/DwarfDebug.cpp:746:0#11 0x00000000025f5cf4 llvm::DwarfDebug::ensureAbstractVariableIsCreatedIfScoped(std::pair<llvm::DILocalVariable const*, llvm::DILocation const*>, llvm::MDNode const*) /mnt/b/sanitizer-buildbot1/sanitizer-x86_64-linux/build/llvm/lib/CodeGen/AsmPrinter/DwarfDebug.cpp:767:0
>>>>> #12 0x00000000025f5d38 llvm::DwarfDebug::createConcreteVariable(llvm::LexicalScope&, std::pair<llvm::DILocalVariable const*, llvm::DILocation const*>) /mnt/b/sanitizer-buildbot1/sanitizer-x86_64-linux/build/llvm/lib/CodeGen/AsmPrinter/DwarfDebug.cpp:961:0
>>>>> #13 0x00000000025f901c llvm::DwarfDebug::collectVariableInfo(llvm::DwarfCompileUnit&, llvm::DISubprogram const*, llvm::DenseSet<std::pair<llvm::DILocalVariable const*, llvm::DILocation const*>, llvm::DenseMapInfo<std::pair<llvm::DILocalVariable const*, llvm::DILocation const*> > >&) /mnt/b/sanitizer-buildbot1/sanitizer-x86_64-linux/build/llvm/lib/CodeGen/AsmPrinter/DwarfDebug.cpp:1005:0
>>>>> #14 0x00000000025f9ae8 llvm::DwarfDebug::endFunctionImpl(llvm::MachineFunction const*) /mnt/b/sanitizer-buildbot1/sanitizer-x86_64-linux/build/llvm/lib/CodeGen/AsmPrinter/DwarfDebug.cpp:1208:0
>>>>> #15 0x000000000262f75a llvm::DebugHandlerBase::endFunction(llvm::MachineFunction const*) /mnt/b/sanitizer-buildbot1/sanitizer-x86_64-linux/build/llvm/lib/CodeGen/AsmPrinter/DebugHandlerBase.cpp:256:0
>>>>>
>>>>>
>>>>> _______________________________________________
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>>>>>
>>>>>
>>>>
>>>
>>
>
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