[Bug] fatal python error :Segmentation fault

initiater commented 1 year ago

Prerequisite

[X] I have searched Issues and Discussions but cannot get the expected help.
[X] I have read the FAQ documentation but cannot get the expected help.
[X] The bug has not been fixed in the latest version (master) or latest version (3.x).

Task

I'm using the official example scripts/configs for the officially supported tasks/models/datasets.

Branch

master branch https://github.com/open-mmlab/mmdetection

Environment

/home/scholar/anaconda3/envs/zhang/lib/python3.9/site-packages/mmcv/init.py:20: UserWarning: On January 1, 2023, MMCV will release v2.0.0, in which it will remove components related to the training process and add a data transformation module. In addition, it will rename the package names mmcv to mmcv-lite and mmcv-full to mmcv. See https://github.com/open-mmlab/mmcv/blob/master/docs/en/compatibility.md for more details. warnings.warn( sys.platform: linux Python: 3.9.16 (main, Mar 8 2023, 14:00:05) [GCC 11.2.0] CUDA available: True GPU 0: NVIDIA GeForce RTX 3090 Ti CUDA_HOME: /home/scholar/anaconda3/envs/zhang NVCC: Cuda compilation tools, release 11.6, V11.6.124 GCC: gcc (Ubuntu 9.4.0-1ubuntu1~20.04.1) 9.4.0 PyTorch: 1.13.1 PyTorch compiling details: PyTorch built with:

GCC 9.3
C++ Version: 201402
Intel(R) oneAPI Math Kernel Library Version 2021.4-Product Build 20210904 for Intel(R) 64 architecture applications
Intel(R) MKL-DNN v2.6.0 (Git Hash 52b5f107dd9cf10910aaa19cb47f3abf9b349815)
OpenMP 201511 (a.k.a. OpenMP 4.5)
LAPACK is enabled (usually provided by MKL)
NNPACK is enabled
CPU capability usage: AVX2
CUDA Runtime 11.6
NVCC architecture flags: -gencode;arch=compute_37,code=sm_37;-gencode;arch=compute_50,code=sm_50;-gencode;arch=compute_60,code=sm_60;-gencode;arch=compute_61,code=sm_61;-gencode;arch=compute_70,code=sm_70;-gencode;arch=compute_75,code=sm_75;-gencode;arch=compute_80,code=sm_80;-gencode;arch=compute_86,code=sm_86;-gencode;arch=compute_37,code=compute_37
CuDNN 8.3.2 (built against CUDA 11.5)
Magma 2.6.1
Build settings: BLAS_INFO=mkl, BUILD_TYPE=Release, CUDA_VERSION=11.6, CUDNN_VERSION=8.3.2, CXX_COMPILER=/opt/rh/devtoolset-9/root/usr/bin/c++, CXX_FLAGS= -fabi-version=11 -Wno-deprecated -fvisibility-inlines-hidden -DUSE_PTHREADPOOL -fopenmp -DNDEBUG -DUSE_KINETO -DUSE_FBGEMM -DUSE_QNNPACK -DUSE_PYTORCH_QNNPACK -DUSE_XNNPACK -DSYMBOLICATE_MOBILE_DEBUG_HANDLE -DEDGE_PROFILER_USE_KINETO -O2 -fPIC -Wno-narrowing -Wall -Wextra -Werror=return-type -Werror=non-virtual-dtor -Wno-missing-field-initializers -Wno-type-limits -Wno-array-bounds -Wno-unknown-pragmas -Wunused-local-typedefs -Wno-unused-parameter -Wno-unused-function -Wno-unused-result -Wno-strict-overflow -Wno-strict-aliasing -Wno-error=deprecated-declarations -Wno-stringop-overflow -Wno-psabi -Wno-error=pedantic -Wno-error=redundant-decls -Wno-error=old-style-cast -fdiagnostics-color=always -faligned-new -Wno-unused-but-set-variable -Wno-maybe-uninitialized -fno-math-errno -fno-trapping-math -Werror=format -Werror=cast-function-type -Wno-stringop-overflow, LAPACK_INFO=mkl, PERF_WITH_AVX=1, PERF_WITH_AVX2=1, PERF_WITH_AVX512=1, TORCH_VERSION=1.13.1, USE_CUDA=ON, USE_CUDNN=ON, USE_EXCEPTION_PTR=1, USE_GFLAGS=OFF, USE_GLOG=OFF, USE_MKL=ON, USE_MKLDNN=ON, USE_MPI=OFF, USE_NCCL=ON, USE_NNPACK=ON, USE_OPENMP=ON, USE_ROCM=OFF,

TorchVision: 0.14.1 OpenCV: 4.7.0 MMCV: 1.7.1 MMCV Compiler: GCC 9.3 MMCV CUDA Compiler: 11.6 MMDetection: 2.28.2+e9cae2d

Reproduces the problem - code sample

Fatal Python error: Segmentation fault

Thread 0x00007efc318a9700 (most recent call first): File "/home/scholar/anaconda3/envs/zhang/lib/python3.9/threading.py", line 312 in wait File "/home/scholar/anaconda3/envs/zhang/lib/python3.9/multiprocessing/queues.py", line 231 in _feed File "/home/scholar/anaconda3/envs/zhang/lib/python3.9/threading.py", line 917 in run File "/home/scholar/anaconda3/envs/zhang/lib/python3.9/threading.py", line 980 in _bootstrap_inner File "/home/scholar/anaconda3/envs/zhang/lib/python3.9/threading.py", line 937 in _bootstrap

Thread 0x00007efc340aa700 (most recent call first):

Current thread 0x00007efd2c2e2180 (most recent call first): File "/home/scholar/anaconda3/envs/zhang/lib/python3.9/site-packages/mmcv/runner/epoch_based_runner.py", line 40 in run_iter File "/home/scholar/anaconda3/envs/zhang/lib/python3.9/site-packages/mmcv/runner/epoch_based_runner.py", line 53 in train File "/home/scholar/anaconda3/envs/zhang/lib/python3.9/site-packages/mmcv/runner/epoch_based_runner.py", line 136 in run File "/home/scholar/Documents/mmdetection/mmdet/apis/train.py", line 246 in train_detector File "/home/scholar/Documents/mmdetection/tools/train.py", line 238 in main File "/home/scholar/Documents/mmdetection/tools/train.py", line 249 in Segmentation fault (core dumped) ### Reproduces the problem - command or script "I tried to debug using gdb. This is an error reported. How should I handle it?" ### Reproduces the problem - error message I suspect it's a multithreading problem, but how can I solve it? ### Additional information _No response_

initiater commented 1 year ago

Please help me see where the problem is.

hhaAndroid commented 1 year ago

@initiater Can you try the mmdet 3.x branch?

initiater commented 1 year ago

@initiater Can you try the mmdet 3.x branch?

Ok, I'll give it a try and give feedback on the results.

initiater commented 1 year ago

@initiater Can you try the mmdet 3.x branch?

Based on your suggestions, I updated mmcv and mmdet mmcv=2.0.0.0rc4, mmdet=3.0.0rc6

"But the error is still Fatal Python error: The segmentation fault is the same as the previous error. What should I do?"

nh2522 commented 9 months ago

@initiater Can you try the mmdet 3.x branch?

Based on your suggestions, I updated mmcv and mmdet mmcv=2.0.0.0rc4, mmdet=3.0.0rc6

"But the error is still Fatal Python error: The segmentation fault is the same as the previous error. What should I do?"

I have this issue as well! Were you successful in fixing it?

open-mmlab / mmdetection