zheng-da commented on a change in pull request #10336: Fix MKLDNN
sigmoid/softrelu issue
URL: https://github.com/apache/incubator-mxnet/pull/10336#discussion_r178316964
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File path: src/operator/nn/activation.cc
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@@ -82,7 +82,7 @@ void ActivationGradComputeExCPU(const nnvm::NodeAttrs& attrs,
const ActivationParam& param = nnvm::get<ActivationParam>(attrs.parsed);
if (SupportMKLDNN(inputs[0])) {
MKLDNN_OPCHECK_INIT(true, outputs.size(), inputs, outputs);
- MKLDNNActivationBackward(attrs, ctx, inputs[0], inputs[1], req[0],
+ MKLDNNActivationBackward(attrs, ctx, inputs[0], inputs[2], req[0],
outputs[0]);
Review comment:
`inputs[2]` doesn't exist. You need to modify `ActivationGrad` to pass input
data to backward.
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