[GitHub] reminisce commented on issue #10392: Fix cudnn_conv and cudnn_deconv deadlock

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reminisce commented on issue #10392: Fix cudnn_conv and cudnn_deconv deadlock
URL: https://github.com/apache/incubator-mxnet/pull/10392#issuecomment-378665802
 
 
   @KellenSunderland @marcoabreu Thanks for the initial investigation of the root cause. Even though this should be a safe fix, I am still not clear why the deadlock could happen. It seems that a thread was running the pushed async function again and again, and hence the worker thread has to wait until the var is released. Could you provide some insights. GDB doesn't seem to help very much here. I had to add a lot of logging messages to see the execution.

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