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Posted to commits@mxnet.apache.org by GitBox <gi...@apache.org> on 2020/08/16 06:19:15 UTC

[GitHub] [incubator-mxnet] leeyeetonn opened a new issue #18941: Segmentation fault in mxnet.contrib.autograd.mark_variables

leeyeetonn opened a new issue #18941:
URL: https://github.com/apache/incubator-mxnet/issues/18941


   ## Description
   (A clear and concise description of what the bug is.)
   It seems random ndarray can trigger `mxnet.contrib.autograd.mark_variables` to have segfault. Please see the provided code for example.
   ### Error Message
   (Paste the complete error message. Please also include stack trace by setting environment variable `DMLC_LOG_STACK_TRACE_DEPTH=10` before running your script.)
   >Segmentation fault: 11
   Stack trace:
     [bt] (0) /root/miniconda3/lib/python3.7/site-packages/mxnet/libmxnet.so(+0x3c27360) [0x7efea4dda360]
   ## To Reproduce
   (If you developed your own code, please provide a short script that reproduces the error. For existing examples, please provide link.)
   ```python
   import mxnet
   import numpy as np
   grads = mxnet.nd.array(np.random.rand(1))
   vars = mxnet.nd.array(np.random.rand(1))
   mxnet.contrib.autograd.mark_variables(gradients=grads, variables=vars)
   ```
   ### Steps to reproduce
   (Paste the commands you ran that produced the error.)
   
   1. run the provided code in python interpreter or as a script
   2.
   
   ## What have you tried to solve it?
   
   1.
   2.
   
   ## Environment
   
   We recommend using our script for collecting the diagnositc information. Run the following command and paste the outputs below:
   ```
   curl --retry 10 -s https://raw.githubusercontent.com/dmlc/gluon-nlp/master/tools/diagnose.py | python
   
   # paste outputs here
   ```
   Got 404 when trying to get the script.
   
   Some environment information:
   
   * OS: ubuntu 18.04
   * Python: 3.7.6
   * pip: 20.0.2
   * numpy: 1.18.5
   * mxnet: 1.6.0


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[GitHub] [incubator-mxnet] leeyeetonn closed issue #18941: Segmentation fault in mxnet.contrib.autograd.mark_variables

Posted by GitBox <gi...@apache.org>.
leeyeetonn closed issue #18941:
URL: https://github.com/apache/incubator-mxnet/issues/18941


   


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[GitHub] [incubator-mxnet] leeyeetonn commented on issue #18941: Segmentation fault in mxnet.contrib.autograd.mark_variables

Posted by GitBox <gi...@apache.org>.
leeyeetonn commented on issue #18941:
URL: https://github.com/apache/incubator-mxnet/issues/18941#issuecomment-674572092


   doesn't seem to be able to reproduce the provided example in the nightly version. Closing this one in favor of #18944.


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