Problem related to fd

[seo-rii]

In some case, fd assigned by createFileDescriptor makes error while calling removeFileDescriptor. (e.g. TestTransfer_Accept_Send_Symmetric). Some case does not make this error.

It creates Assertion failed: (nsIter != appIter->second.fdToDomain.end()) error.

I tried to debug this in many way.

First, I ran asan, refering to similar discussion, but it didn't make any error. It just failed assertion as same as test without asan.

Then, I tried to use debugger, and found strange thing.

When I call createFileDescriptor, it returns fd=3.

But, at the assertion failure point, I believe debugger says there's only fd=4. --I still keeped breakpoint created before, so no other createFileDescriptor has been called.--

I want to ask two questions :

1. Is there any other debugging method I can use to solve this problem? Or can you provide any hint about this?
2. If I simply remove removeFileDescriptor, I get full point at least on given random seed. Is it okay to not calling removeFileDescriptor if I can't find reason until deadline?

Edit

Sorry for confusion. fd=4 was also created. But fd=3 should remained too.

[Pusnow]

Is there any other debugging method I can use to solve this problem? Or can you provide any hint about this?

Insert printf in createFileDescriptor and removeFileDescriptor and trace all fd creation and deletion. If you really don't know why the problem persist, send your source code to TAs. [email protected]

If I simply remove removeFileDescriptor, I get full point at least on given random seed. Is it okay to not calling removeFileDescriptor if I can't find reason until deadline?

As long as you pass all test cases (including test-kens-open-unreliable), it is okay.