A segmentation fault occurs if one uses DataLoader with num_workers > 0 after calling set_num_threads with a sufficiently high value. I observed this behaviour in PyTorch 1.8.0 and 1.8.1, but I am unable to reproduce it with PyTorch 1.7.1. To Reproduce
Segmentation fault in PyTorch dataloader #54716 Bug I encountered a segmentation fault error when running the program Vamb and the developer suggested it was related to the C or C++ implementation of pytorch's dataloader. This error arose when running the Snakemake workflow for Vamb, specifically in the rule that runs the Vamb program itself.
Nov 30, 2018 · I can successfully run the same program on my local computer with pytorch 0.4.1 and ubuntu 16.04, Then I tried to print out message to locate the line in my code that created this issue. I found that the segmentation fault was raised then executing multiprocessing in _DataLoaderIter method of dataloader code.
20.05.2021 · _error_if_any_worker_fails() RuntimeError: DataLoader worker (pid 89199) is killed by signal: Segmentation fault. The dataset that I am using is massive 1.6M videos but I can never seem to do even a single pass of my data before I see this crash.
20.08.2018 · Segmentation fault perry_wu August 20, 2018, 9:57am #1 I used pytorch to train a cnn+ctc OCR model whose input images with increasing width size. Every time at 95-99% of first epoch, the system crashed with little information (Segmentation fault). I am sure the GPU and CPU memory were enough.
Segmentation fault in PyTorch dataloader #54716 Bug I encountered a segmentation fault error when running the program Vamb and the developer suggested it was related to the C or C++ implementation of pytorch's dataloader. This error arose when running the Snakemake workflow for Vamb, specifically in the rule that runs the Vamb program itself.
edited by pytorch-probot bot Bug A segmentation fault occurs if one uses DataLoader with num_workers > 0 after calling set_num_threads with a sufficiently high value. I observed this behaviour in PyTorch 1.8.0 and 1.8.1, but I am unable to reproduce it …
Jan 01, 2020 · If also possible (once you switch to a newer version of PyTorch), attaching gdb and getting a backtrace at the segfault point would also be helpful. ezyang changed the title Segmentation Fault (core dumped) DataLoader: Segmentation Fault (core dumped) on Jan 2, 2020
30.11.2018 · I can successfully run the same program on my local computer with pytorch 0.4.1 and ubuntu 16.04, Then I tried to print out message to locate the line in my code that created this issue. I found that the segmentation fault was raised then executing multiprocessing in _DataLoaderIter method of dataloader code.
26.02.2020 · I don't have enough low level linux knowledge to point out exactly what was the issue but if you replace these dependencies using sudo apt-get install package (in my case it was numpy and opencv-python) and make sure your environment is using that, it solved the segmentation errors. dreaquil closed this on Feb 28, 2020.
29.11.2018 · I can successfully run the same program on my local computer with pytorch 0.4.1 and ubuntu 16.04, Then I tried to print out message to locate the line in my code that created this issue. I found that the segmentation fault was raised then executing multiprocessing in _DataLoaderIter method of dataloader code.
🐛 Bug I get a segmentation fault in the dataloader upgrading to pytorch v1.8.0. The worker crash immediately. With pytorch v1.7.1 it works without any issues. Is there anything substantial that cha...