[PATCH] D104016: [Orc][examples] Join ListenerThread on early exit in LLJITWithRemoteDebugging

Thu Jun 10 02:54:34 PDT 2021

sgraenitz added a comment.

After commit 2f9ba6aa8b6d <https://reviews.llvm.org/rG2f9ba6aa8b6d805728b5df42b7b049b3c23d28a2> the test failure https://lab.llvm.org/buildbot/#/builders/61/builds/10796 occurred on one of the few build bots that include the examples. The patch doesn't affect any code exercised in this test and the bot turned green with the subsequent build. Thus, the test might be considered flaky. So far I failed to reproduce the exact error:

  ******************** TEST 'LLVM :: Examples/OrcV2Examples/lljit-with-remote-debugging.test' FAILED ********************
  Script:
  --
  : 'RUN: at line 4';   /vol/worker/mlir-nvidia/mlir-nvidia/llvm.obj/bin/LLJITWithRemoteDebugging /vol/worker/mlir-nvidia/mlir-nvidia/llvm.src/llvm/test/Examples/OrcV2Examples/Inputs/argc_sub1_elf.ll | /vol/worker/mlir-nvidia/mlir-nvidia/llvm.obj/bin/FileCheck --check-prefix=CHECK1 /vol/worker/mlir-nvidia/mlir-nvidia/llvm.src/llvm/test/Examples/OrcV2Examples/lljit-with-remote-debugging.test
  : 'RUN: at line 9';   /vol/worker/mlir-nvidia/mlir-nvidia/llvm.obj/bin/LLJITWithRemoteDebugging /vol/worker/mlir-nvidia/mlir-nvidia/llvm.src/llvm/test/Examples/OrcV2Examples/Inputs/argc_sub1_elf.ll --args 2nd 3rd 4th | /vol/worker/mlir-nvidia/mlir-nvidia/llvm.obj/bin/FileCheck --check-prefix=CHECK3 /vol/worker/mlir-nvidia/mlir-nvidia/llvm.src/llvm/test/Examples/OrcV2Examples/lljit-with-remote-debugging.test
  --
  Exit Code: 2
  Command Output (stderr):
  --
  + : 'RUN: at line 4'
  + /vol/worker/mlir-nvidia/mlir-nvidia/llvm.obj/bin/FileCheck --check-prefix=CHECK1 /vol/worker/mlir-nvidia/mlir-nvidia/llvm.src/llvm/test/Examples/OrcV2Examples/lljit-with-remote-debugging.test
  + /vol/worker/mlir-nvidia/mlir-nvidia/llvm.obj/bin/LLJITWithRemoteDebugging /vol/worker/mlir-nvidia/mlir-nvidia/llvm.src/llvm/test/Examples/OrcV2Examples/Inputs/argc_sub1_elf.ll
  LLJITWithRemoteDebugging: /vol/worker/mlir-nvidia/mlir-nvidia/llvm.src/llvm/include/llvm/ExecutionEngine/Orc/SymbolStringPool.h:157: llvm::orc::SymbolStringPool::~SymbolStringPool(): Assertion `Pool.empty() && "Dangling references at pool destruction time"' failed.
  PLEASE submit a bug report to https://bugs.llvm.org/ and include the crash backtrace.
  Stack dump:
  0.	Program arguments: /vol/worker/mlir-nvidia/mlir-nvidia/llvm.obj/bin/LLJITWithRemoteDebugging /vol/worker/mlir-nvidia/mlir-nvidia/llvm.src/llvm/test/Examples/OrcV2Examples/Inputs/argc_sub1_elf.ll
   #0 0x00007fd770a43753 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/vol/worker/mlir-nvidia/mlir-nvidia/llvm.obj/bin/../lib/libLLVMSupport.so.13git+0x1a0753)
   #1 0x00007fd770a413fe llvm::sys::RunSignalHandlers() (/vol/worker/mlir-nvidia/mlir-nvidia/llvm.obj/bin/../lib/libLLVMSupport.so.13git+0x19e3fe)
   #2 0x00007fd770a43c26 SignalHandler(int) Signals.cpp:0:0
   #3 0x00007fd7720ec980 __restore_rt (/lib/x86_64-linux-gnu/libpthread.so.0+0x12980)
   #4 0x00007fd76fbb1fb7 raise (/lib/x86_64-linux-gnu/libc.so.6+0x3efb7)
   #5 0x00007fd76fbb3921 abort (/lib/x86_64-linux-gnu/libc.so.6+0x40921)
   #6 0x00007fd76fba348a (/lib/x86_64-linux-gnu/libc.so.6+0x3048a)
   #7 0x00007fd76fba3502 (/lib/x86_64-linux-gnu/libc.so.6+0x30502)
   #8 0x00007fd7731b56b4 (/vol/worker/mlir-nvidia/mlir-nvidia/llvm.obj/bin/../lib/libLLVMOrcJIT.so.13git+0x646b4)
   #9 0x00007fd77323175f llvm::orc::TargetProcessControl::~TargetProcessControl() (/vol/worker/mlir-nvidia/mlir-nvidia/llvm.obj/bin/../lib/libLLVMOrcJIT.so.13git+0xe075f)
  #10 0x000000000040f109 llvm::orc::RemoteTargetProcessControl::~RemoteTargetProcessControl() (/vol/worker/mlir-nvidia/mlir-nvidia/llvm.obj/bin/LLJITWithRemoteDebugging+0x40f109)
  #11 0x00000000004113e1 llvm::orc::ChildProcessJITLinkExecutor::~ChildProcessJITLinkExecutor() (/vol/worker/mlir-nvidia/mlir-nvidia/llvm.obj/bin/LLJITWithRemoteDebugging+0x4113e1)
  #12 0x0000000000408ae1 main (/vol/worker/mlir-nvidia/mlir-nvidia/llvm.obj/bin/LLJITWithRemoteDebugging+0x408ae1)
  #13 0x00007fd76fb94bf7 __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21bf7)
  #14 0x00000000004064ea _start (/vol/worker/mlir-nvidia/mlir-nvidia/llvm.obj/bin/LLJITWithRemoteDebugging+0x4064ea)
  FileCheck error: '<stdin>' is empty.
  FileCheck command line:  /vol/worker/mlir-nvidia/mlir-nvidia/llvm.obj/bin/FileCheck --check-prefix=CHECK1 /vol/worker/mlir-nvidia/mlir-nvidia/llvm.src/llvm/test/Examples/OrcV2Examples/lljit-with-remote-debugging.test
  --
  ********************

Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D104016/new/

https://reviews.llvm.org/D104016