[mlpack-git] [mlpack] segmentation fault with LogisticRegression API (#428)

[John Lees]

No, I hadn't touched it - thanks for the tip!

I've now uncommented the required line in /include/armadillo_bits/config.hpp and recompiled mlpack. However, I now get an out of memory error:

error: arma::memory::acquire(): out of memory

terminate called after throwing an instance of 'std::bad_alloc'
  what():  std::bad_alloc

Program received signal SIGABRT, Aborted.

When I look at the backtrace in gdb, I find that upon initialising the zero matrix, arma requests 4294970366 (i.e. 2^32 +/- rounding error) elements and then fails to allocate memory for it

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https://github.com/mlpack/mlpack/issues/428#issuecomment-88046399
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