[lldb-dev] Linux TOT has 20+ tests failing on my end

Todd Fiala tfiala at google.com
Thu Mar 6 22:34:04 PST 2014


This issue seems to be resolved in top of tree now AFAICT.


On Thu, Mar 6, 2014 at 5:00 PM, Todd Fiala <tfiala at google.com> wrote:

> Digging a little deeper, it looks like this change may have been what
> broke it:
>
> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20308391177308-0d34-0410-b5e6-96231b3b80d8
>
>
>
> On Thu, Mar 6, 2014 at 4:52 PM, Todd Fiala <tfiala at google.com> wrote:
>
>> FYI - the patch I suggested to Xu,Chiheng a few minutes ago does fix all
>> the errors above.
>>
>> I'm checking with some LLVM folks to see if that patch looks reasonable.
>>
>>
>> On Thu, Mar 6, 2014 at 11:44 AM, Todd Fiala <tfiala at google.com> wrote:
>>
>>> At least some of htese are hitting seg faults with back traces like the
>>> following (seems to be what Xu,Chiheng mentioned earlier today):
>>>
>>> Core was generated by `python
>>> /mnt/ssd/work/git/gen/llvm/tools/lldb/test/dotest.py -q --executable /mn'.
>>> Program terminated with signal SIGSEGV, Segmentation fault.
>>> #0  0x00007f01b2b72de4 in
>>> llvm::MCExternalSymbolizer::tryAddingSymbolicOperand (this=0x2d00860,
>>> MI=..., cStream=...,
>>>     Value=4198306, Address=4197171, IsBranch=true, Offset=1, InstSize=4)
>>>     at /mnt/ssd/work/git/gen/llvm/lib/MC/MCExternalSymbolizer.cpp:135
>>> 135       Expr = RelInfo->createExprForCAPIVariantKind(Expr,
>>> SymbolicOp.VariantKind);
>>> (gdb) bt
>>> #0  0x00007f01b2b72de4 in
>>> llvm::MCExternalSymbolizer::tryAddingSymbolicOperand (this=0x2d00860,
>>> MI=..., cStream=...,
>>>     Value=4198306, Address=4197171, IsBranch=true, Offset=1, InstSize=4)
>>>     at /mnt/ssd/work/git/gen/llvm/lib/MC/MCExternalSymbolizer.cpp:135
>>> #1  0x00007f01b2b618fe in llvm::MCDisassembler::tryAddingSymbolicOperand
>>> (this=0x2c89700, Inst=..., Value=4198306,
>>>     Address=4197171, IsBranch=true, Offset=1, InstSize=4) at
>>> /mnt/ssd/work/git/gen/llvm/lib/MC/MCDisassembler.cpp:47
>>> #2  0x00007f01b26e8bb9 in tryAddingSymbolicOperand (Value=4198306,
>>> isBranch=true, Address=4197171, Offset=1, Width=4,
>>>     MI=..., Dis=0x2c89700) at
>>> /mnt/ssd/work/git/gen/llvm/lib/Target/X86/Disassembler/X86Disassembler.cpp:210
>>> #3  0x00007f01b26e9242 in translateImmediate (mcInst=...,
>>> immediate=1130, operand=..., insn=..., Dis=0x2c89700)
>>>     at
>>> /mnt/ssd/work/git/gen/llvm/lib/Target/X86/Disassembler/X86Disassembler.cpp:387
>>> #4  0x00007f01b26ee349 in translateOperand (mcInst=..., operand=...,
>>> insn=..., Dis=0x2c89700)
>>>     at
>>> /mnt/ssd/work/git/gen/llvm/lib/Target/X86/Disassembler/X86Disassembler.cpp:740
>>> #5  0x00007f01b26ee573 in translateInstruction (mcInst=..., insn=...,
>>> Dis=0x2c89700)
>>>     at
>>> /mnt/ssd/work/git/gen/llvm/lib/Target/X86/Disassembler/X86Disassembler.cpp:796
>>> #6  0x00007f01b26e8ac0 in
>>> llvm::X86Disassembler::X86GenericDisassembler::getInstruction
>>> (this=0x2c89700, instr=...,
>>>     size=@0x7fff0119b510: 5, region=..., address=4197171, vStream=...,
>>> cStream=...)
>>>     at
>>> /mnt/ssd/work/git/gen/llvm/lib/Target/X86/Disassembler/X86Disassembler.cpp:160
>>> #7  0x00007f01b0ffd355 in
>>> DisassemblerLLVMC::LLVMCDisassembler::GetMCInst (this=0x2cb2bf0,
>>>     opcode_data=0x29dd3a8 "\350j\004", opcode_data_len=5, pc=4197171,
>>> mc_inst=...)
>>>     at
>>> /mnt/ssd/work/git/gen/llvm/tools/lldb/source/Plugins/Disassembler/llvm/DisassemblerLLVMC.cpp:528
>>> #8  0x00007f01b0ffc00d in InstructionLLVMC::Decode (this=0x2ba5fd0,
>>> disassembler=..., data=..., data_offset=24)
>>>     at
>>> /mnt/ssd/work/git/gen/llvm/tools/lldb/source/Plugins/Disassembler/llvm/DisassemblerLLVMC.cpp:212
>>> #9  0x00007f01b0ffe001 in DisassemblerLLVMC::DecodeInstructions
>>> (this=0x2c89590, base_addr=..., data=..., data_offset=0,
>>>     num_instructions=4294967295, append=false, data_from_file=true)
>>>     at
>>> /mnt/ssd/work/git/gen/llvm/tools/lldb/source/Plugins/Disassembler/llvm/DisassemblerLLVMC.cpp:721
>>> #10 0x00007f01b0e5416a in lldb_private::Disassembler::ParseInstructions
>>> (this=0x2c89590, exe_ctx=0x7fff0119b8e0,
>>>     range=..., error_strm_ptr=0x0, prefer_file_cache=true)
>>>     at
>>> /mnt/ssd/work/git/gen/llvm/tools/lldb/source/Core/Disassembler.cpp:1105
>>> #11 0x00007f01b0e50fb3 in lldb_private::Disassembler::DisassembleRange
>>> (arch=..., plugin_name=0x0, flavor=0x0, exe_ctx=
>>>     ..., range=..., prefer_file_cache=true) at
>>> /mnt/ssd/work/git/gen/llvm/tools/lldb/source/Core/Disassembler.cpp:250
>>> #12 0x00007f01b0fe4cc3 in
>>> lldb_private::ThreadPlanStepRange::GetInstructionsForAddress
>>> (this=0x288f630, addr=4197147,
>>>     range_index=@0x7fff0119b9e0: 18446744072233160264,
>>> insn_offset=@0x7fff0119b9e8: 140733211851824)
>>>     at
>>> /mnt/ssd/work/git/gen/llvm/tools/lldb/source/Target/ThreadPlanStepRange.cpp:307
>>> #13 0x00007f01b0fe4ff7 in
>>> lldb_private::ThreadPlanStepRange::SetNextBranchBreakpoint (this=0x288f630)
>>>     at
>>> /mnt/ssd/work/git/gen/llvm/tools/lldb/source/Target/ThreadPlanStepRange.cpp:365
>>> #14 0x00007f01b0fe3dae in lldb_private::ThreadPlanStepRange::DidPush
>>> (this=0x288f630)
>>>     at
>>> /mnt/ssd/work/git/gen/llvm/tools/lldb/source/Target/ThreadPlanStepRange.cpp:81
>>> #15 0x00007f01b0fcc9dc in lldb_private::Thread::PushPlan
>>> (this=0x7f01a8000910, thread_plan_sp=
>>>     std::shared_ptr (count 2, weak 0) 0x288f630) at
>>> /mnt/ssd/work/git/gen/llvm/tools/lldb/source/Target/Thread.cpp:1073
>>> #16 0x00007f01b0fcd2e7 in lldb_private::Thread::QueueThreadPlan
>>> (this=0x7f01a8000910,
>>>     thread_plan_sp=std::shared_ptr (count 2, weak 0) 0x288f630,
>>> abort_other_plans=false)
>>>     at
>>> /mnt/ssd/work/git/gen/llvm/tools/lldb/source/Target/Thread.cpp:1231
>>> #17 0x00007f01b0fcdad7 in
>>> lldb_private::Thread::QueueThreadPlanForStepOverRange (this=0x7f01a8000910,
>>>     abort_other_plans=false, range=..., addr_context=...,
>>> stop_other_threads=lldb::eOnlyDuringStepping)
>>>     at
>>> /mnt/ssd/work/git/gen/llvm/tools/lldb/source/Target/Thread.cpp:1434
>>> #18 0x00007f01b121a3a4 in
>>> CommandObjectThreadStepWithTypeAndScope::DoExecute (this=0x26ba680,
>>> command=..., result=...)
>>>     at
>>> /mnt/ssd/work/git/gen/llvm/tools/lldb/source/Commands/CommandObjectThread.cpp:541
>>> #19 0x00007f01b0ea2e71 in lldb_private::CommandObjectParsed::Execute
>>> (this=0x26ba680,
>>>     args_string=0x7f01ae7f13d8
>>> <std::string::_Rep::_S_empty_rep_storage+24> "", result=...)
>>>     at
>>> /mnt/ssd/work/git/gen/llvm/tools/lldb/source/Interpreter/CommandObject.cpp:1031
>>> #20 0x00007f01b0e91ace in
>>> lldb_private::CommandInterpreter::HandleCommand (this=0x22a0590,
>>>     command_line=0x7f01b86ea7d4 "n",
>>> lazy_add_to_history=lldb_private::eLazyBoolNo, result=...,
>>> override_context=0x0,
>>>     repeat_on_empty_command=true, no_context_switching=false)
>>>     at
>>> /mnt/ssd/work/git/gen/llvm/tools/lldb/source/Interpreter/CommandInterpreter.cpp:1858
>>> #21 0x00007f01b111fe61 in lldb::SBCommandInterpreter::HandleCommand
>>> (this=0x25e2e80, command_line=0x7f01b86ea7d4 "n",
>>>     result=..., add_to_history=false) at
>>> /mnt/ssd/work/git/gen/llvm/tools/lldb/source/API/SBCommandInterpreter.cpp:138
>>> #22 0x00007f01b0ce6796 in
>>> _wrap_SBCommandInterpreter_HandleCommand__SWIG_0 (args=0x2664100)
>>>     at tools/lldb/scripts/LLDBWrapPython.cpp:9591
>>> #23 0x00007f01b0ce6daa in _wrap_SBCommandInterpreter_HandleCommand
>>> (self=0x0, args=0x2664100)
>>>     at tools/lldb/scripts/LLDBWrapPython.cpp:9699
>>> #24 0x0000000000550138 in PyEval_EvalFrameEx ()
>>> #25 0x0000000000575d92 in PyEval_EvalCodeEx ()
>>>
>>> I'll have a look at the code.
>>>
>>>
>>> On Thu, Mar 6, 2014 at 10:59 AM, Todd Fiala <tfiala at google.com> wrote:
>>>
>>>> I'll start looking, but as of lldb r203139 I'm seeing a hefty number of
>>>> failures on Ubuntu 12.04 x86_64:
>>>>
>>>> Failing Tests (22)
>>>> FAIL: LLDB (suite) :: TestSBData.py (Linux tfiala2.mtv.corp.google.com3.2.5-gg1336 #1 SMP Thu Aug 29 02:37:18 PDT 2013 x86_64 x86_64)
>>>> FAIL: LLDB (suite) :: TestDisasmAPI.py (Linux
>>>> tfiala2.mtv.corp.google.com 3.2.5-gg1336 #1 SMP Thu Aug 29 02:37:18
>>>> PDT 2013 x86_64 x86_64)
>>>> FAIL: LLDB (suite) :: TestThreadAPI.py (Linux
>>>> tfiala2.mtv.corp.google.com 3.2.5-gg1336 #1 SMP Thu Aug 29 02:37:18
>>>> PDT 2013 x86_64 x86_64)
>>>> FAIL: LLDB (suite) :: TestClassTypesDisassembly.py (Linux
>>>> tfiala2.mtv.corp.google.com 3.2.5-gg1336 #1 SMP Thu Aug 29 02:37:18
>>>> PDT 2013 x86_64 x86_64)
>>>> FAIL: LLDB (suite) :: TestClassTypes.py (Linux
>>>> tfiala2.mtv.corp.google.com 3.2.5-gg1336 #1 SMP Thu Aug 29 02:37:18
>>>> PDT 2013 x86_64 x86_64)
>>>> FAIL: LLDB (suite) :: TestStepAndBreakpoints.py (Linux
>>>> tfiala2.mtv.corp.google.com 3.2.5-gg1336 #1 SMP Thu Aug 29 02:37:18
>>>> PDT 2013 x86_64 x86_64)
>>>> FAIL: LLDB (suite) :: TestConstVariables.py (Linux
>>>> tfiala2.mtv.corp.google.com 3.2.5-gg1336 #1 SMP Thu Aug 29 02:37:18
>>>> PDT 2013 x86_64 x86_64)
>>>> FAIL: LLDB (suite) :: TestInlineStepping.py (Linux
>>>> tfiala2.mtv.corp.google.com 3.2.5-gg1336 #1 SMP Thu Aug 29 02:37:18
>>>> PDT 2013 x86_64 x86_64)
>>>> FAIL: LLDB (suite) :: TestCommandScript.py (Linux
>>>> tfiala2.mtv.corp.google.com 3.2.5-gg1336 #1 SMP Thu Aug 29 02:37:18
>>>> PDT 2013 x86_64 x86_64)
>>>> FAIL: LLDB (suite) :: TestInferiorAssert.py (Linux
>>>> tfiala2.mtv.corp.google.com 3.2.5-gg1336 #1 SMP Thu Aug 29 02:37:18
>>>> PDT 2013 x86_64 x86_64)
>>>> FAIL: LLDB (suite) :: TestInferiorCrashing.py (Linux
>>>> tfiala2.mtv.corp.google.com 3.2.5-gg1336 #1 SMP Thu Aug 29 02:37:18
>>>> PDT 2013 x86_64 x86_64)
>>>> FAIL: LLDB (suite) :: TestConvenienceVariables.py (Linux
>>>> tfiala2.mtv.corp.google.com 3.2.5-gg1336 #1 SMP Thu Aug 29 02:37:18
>>>> PDT 2013 x86_64 x86_64)
>>>> FAIL: LLDB (suite) :: TestLongjmp.py (Linux tfiala2.mtv.corp.google.com3.2.5-gg1336 #1 SMP Thu Aug 29 02:37:18 PDT 2013 x86_64 x86_64)
>>>> FAIL: LLDB (suite) :: TestTypeCompletion.py (Linux
>>>> tfiala2.mtv.corp.google.com 3.2.5-gg1336 #1 SMP Thu Aug 29 02:37:18
>>>> PDT 2013 x86_64 x86_64)
>>>> FAIL: LLDB (suite) :: TestLoadUnload.py (Linux
>>>> tfiala2.mtv.corp.google.com 3.2.5-gg1336 #1 SMP Thu Aug 29 02:37:18
>>>> PDT 2013 x86_64 x86_64)
>>>> FAIL: LLDB (suite) :: TestThreadJump.py (Linux
>>>> tfiala2.mtv.corp.google.com 3.2.5-gg1336 #1 SMP Thu Aug 29 02:37:18
>>>> PDT 2013 x86_64 x86_64)
>>>> FAIL: LLDB (suite) :: TestExitDuringStep.py (Linux
>>>> tfiala2.mtv.corp.google.com 3.2.5-gg1336 #1 SMP Thu Aug 29 02:37:18
>>>> PDT 2013 x86_64 x86_64)
>>>> FAIL: LLDB (suite) :: TestCreateDuringStep.py (Linux
>>>> tfiala2.mtv.corp.google.com 3.2.5-gg1336 #1 SMP Thu Aug 29 02:37:18
>>>> PDT 2013 x86_64 x86_64)
>>>> FAIL: LLDB (suite) :: TestDataFormatterScript.py (Linux
>>>> tfiala2.mtv.corp.google.com 3.2.5-gg1336 #1 SMP Thu Aug 29 02:37:18
>>>> PDT 2013 x86_64 x86_64)
>>>> FAIL: LLDB (suite) :: Test-rdar-9974002.py (Linux
>>>> tfiala2.mtv.corp.google.com 3.2.5-gg1336 #1 SMP Thu Aug 29 02:37:18
>>>> PDT 2013 x86_64 x86_64)
>>>> FAIL: LLDB (suite) :: TestDataFormatterStdString.py (Linux
>>>> tfiala2.mtv.corp.google.com 3.2.5-gg1336 #1 SMP Thu Aug 29 02:37:18
>>>> PDT 2013 x86_64 x86_64)
>>>> FAIL: LLDB (suite) :: TestDataFormatterStdList.py (Linux
>>>> tfiala2.mtv.corp.google.com 3.2.5-gg1336 #1 SMP Thu Aug 29 02:37:18
>>>> PDT 2013 x86_64 x86_64)
>>>>
>>>> --
>>>> Todd Fiala | Software Engineer |  tfiala at google.com |  650-943-3180
>>>>
>>>
>>>
>>>
>>> --
>>> Todd Fiala | Software Engineer |  tfiala at google.com |  650-943-3180
>>>
>>
>>
>>
>> --
>> Todd Fiala | Software Engineer |  tfiala at google.com |  650-943-3180
>>
>
>
>
> --
> Todd Fiala | Software Engineer |  tfiala at google.com |  650-943-3180
>



-- 
Todd Fiala | Software Engineer | tfiala at google.com | 650-943-3180
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