Fix maxpool3d / avgpool3d crashs #5052
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zou3519
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you're doing a double-free of a THCTensor somewhere. See contbuild. |
ssnl
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Feb 5, 2018
aten/src/THC/generic/THCTensor.c
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| return self; | ||
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| // Collapses the first two dimensions of a tensor |
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@ssnl I looked at the code for |
ssnl
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Feb 5, 2018
soumith
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Feb 7, 2018
* Replace downcastOuter with newFoldBatchDim * Fix double free * Address comments
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Fixes #4835. This PR picks up from #4848
There's a bug in
THCDeviceTensor::downcastOuterwhere it sometimes doesn't recognize a contiguous tensor as being contiguous. This leads to crashes inmaxpool3d,avgpool3d.This PR removes usages of
THCDeviceTensor::downcastOuterand replaces it with a call tonewFoldBatchDim, which performs the same behavior of collapsing the batch and feature dims but usesnewViewinternally.cc @ssnl
Test Plan
New unit tests for maxpool3d and avgpool3d crashes. Run
test_nnto make sure maxpool3d, avgpool3d, and maxunpool3d still work.