[Solved][AutoTVM] RuntimeError (Return code=4) when runing tune_relay_x86.py

Troubleshooting
#1

hello I running on code tutorial/tune_relay_x86.py but I met some error

No: 78	GFLOPS: 0.00/0.00	result: MeasureResult(costs=(RuntimeError('Traceback (most recent call last):\n  [bt] (8) /home/jaehun/workspace/chameleon/build/libtvm.so(tvm::runtime::RPCSession::ServerLoop()+0x11a) [0x7f581676e12a]\n  [bt] (7) /home/jaehun/workspace/chameleon/build/libtvm.so(tvm::runtime::RPCSession::HandleUntilReturnEvent(tvm::runtime::TVMRetValue*, bool, tvm::runtime::PackedFunc const*)+0x9b1) [0x7f581676d621]\n  [bt] (6) /home/jaehun/workspace/chameleon/build/libtvm.so(+0xc77628) [0x7f581676c628]\n  [bt] (5) /home/jaehun/workspace/chameleon/build/libtvm.so(tvm::runtime::RPCSession::EventHandler::HandleRecvPackedSeqArg()+0x355) [0x7f5816772c55]\n  [bt] (4) /home/jaehun/workspace/chameleon/build/libtvm.so(tvm::runtime::RPCSession::EventHandler::SwitchToState(tvm::runtime::RPCSession::EventHandler::State)+0x365) [0x7f5816771775]\n  [bt] (3) /home/jaehun/workspace/chameleon/build/libtvm.so(tvm::runtime::RPCSession::EventHandler::HandlePackedCall()+0x30f) [0x7f581676bc0f]\n  [bt] (2) /home/jaehun/workspace/chameleon/build/libtvm.so(+0xc75d5e) [0x7f581676ad5e]\n  [bt] (1) /h',),), error_no=4, all_cost=0.49059247970581055, timestamp=1585063703.720035)	[('tile_ic', [-1, 1]), ('tile_oc', [-1, 32]), ('tile_ow', [-1, 16]), ('unroll_kw', True)],None,168
No: 79	GFLOPS: 0.00/0.00	result: MeasureResult(costs=(RuntimeError('Traceback (most recent call last):\n  [bt] (8) /home/jaehun/workspace/chameleon/build/libtvm.so(tvm::runtime::RPCSession::ServerLoop()+0x11a) [0x7f581676e12a]\n  [bt] (7) /home/jaehun/workspace/chameleon/build/libtvm.so(tvm::runtime::RPCSession::HandleUntilReturnEvent(tvm::runtime::TVMRetValue*, bool, tvm::runtime::PackedFunc const*)+0x9b1) [0x7f581676d621]\n  [bt] (6) /home/jaehun/workspace/chameleon/build/libtvm.so(+0xc77628) [0x7f581676c628]\n  [bt] (5) /home/jaehun/workspace/chameleon/build/libtvm.so(tvm::runtime::RPCSession::EventHandler::HandleRecvPackedSeqArg()+0x355) [0x7f5816772c55]\n  [bt] (4) /home/jaehun/workspace/chameleon/build/libtvm.so(tvm::runtime::RPCSession::EventHandler::SwitchToState(tvm::runtime::RPCSession::EventHandler::State)+0x365) [0x7f5816771775]\n  [bt] (3) /home/jaehun/workspace/chameleon/build/libtvm.so(tvm::runtime::RPCSession::EventHandler::HandlePackedCall()+0x30f) [0x7f581676bc0f]\n  [bt] (2) /home/jaehun/workspace/chameleon/build/libtvm.so(+0xc75d5e) [0x7f581676ad5e]\n  [bt] (1) /h',),), error_no=4, all_cost=0.7490992546081543, timestamp=1585063703.946389)	[('tile_ic', [-1, 3]), ('tile_oc', [-1, 8]), ('tile_ow', [-1, 28]), ('unroll_kw', True)],None,227
No: 80	GFLOPS: 0.00/0.00	result: MeasureResult(costs=(RuntimeError('Traceback (most recent call last):\n  [bt] (8) /home/jaehun/workspace/chameleon/build/libtvm.so(tvm::runtime::RPCSession::ServerLoop()+0x11a) [0x7f581676e12a]\n  [bt] (7) /home/jaehun/workspace/chameleon/build/libtvm.so(tvm::runtime::RPCSession::HandleUntilReturnEvent(tvm::runtime::TVMRetValue*, bool, tvm::runtime::PackedFunc const*)+0x9b1) [0x7f581676d621]\n  [bt] (6) /home/jaehun/workspace/chameleon/build/libtvm.so(+0xc77628) [0x7f581676c628]\n  [bt] (5) /home/jaehun/workspace/chameleon/build/libtvm.so(tvm::runtime::RPCSession::EventHandler::HandleRecvPackedSeqArg()+0x355) [0x7f5816772c55]\n  [bt] (4) /home/jaehun/workspace/chameleon/build/libtvm.so(tvm::runtime::RPCSession::EventHandler::SwitchToState(tvm::runtime::RPCSession::EventHandler::State)+0x365) [0x7f5816771775]\n  [bt] (3) /home/jaehun/workspace/chameleon/build/libtvm.so(tvm::runtime::RPCSession::EventHandler::HandlePackedCall()+0x30f) [0x7f581676bc0f]\n  [bt] (2) /home/jaehun/workspace/chameleon/build/libtvm.so(+0xc75d5e) [0x7f581676ad5e]\n  [bt] (1) /h',),), error_no=4, all_cost=0.3643784523010254, timestamp=1585063704.1763315)	[('tile_ic', [-1, 1]), ('tile_oc', [-1, 64]), ('tile_ow', [-1, 4]), ('unroll_kw', True)],None,93

system info ubuntu 16.04 clang-6(install pre build)

the only change of config.cmake is ‘set(USE_LLVM ON)’

#2

Oh, fortunately, i solved it, I had installed lots of clang and build lots of clang and install. So I remove all of the include and binary file about clang. Maybe it is about conflict some of llvm. if you encounter the above error, I recommend removing all of thing about llvm and clean install llvm.