segfault with Hint (InterpreterT)
My program segfaults the second time it run runInterpreterT. Just wondering if that's not supposed to be allowed. I'm actually not sure what triggers the segfault -- it's also doing some MIDI I/O. D
On 03/02/17 01:16, Dennis Raddle wrote:
My program segfaults the second time it run runInterpreterT. Just wondering if that's not supposed to be allowed. I'm actually not sure what triggers the segfault -- it's also doing some MIDI I/O.
D
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Being able to see the code would be useful in order to help you in this case :) Anyway, from my experience, segfaults while using hint are usually caused by invalid type coercions. That's the first thing you should check.
You are right, I should try to construct a minimal example. I was hoping there might be some bit of information that could guide me in what to try, as far as taking my rather large program as-is and varying it. Constructing a minimal example will be, potentially a lot of work and may not even segfault -- but that is how it works, you are right, one must provide a minimal example or at least some actual code. D
There are also some other quick things you could try (unless you've done that already), e.g. making sure that all C code is compiled with `-g`, and use gdb to attach to the dying process (or the `core` dump file that your OS may write when the segfault happens) and use `bt` to check if the segfault is actually in the Haskell runtime or not. And then of course, if your code is open-source, you might also be able to provide it as a whole before putting in the effort to minimise it. Niklas On 03/02/17 15:19, Dennis Raddle wrote:
You are right, I should try to construct a minimal example. I was hoping there might be some bit of information that could guide me in what to try, as far as taking my rather large program as-is and varying it. Constructing a minimal example will be, potentially a lot of work and may not even segfault -- but that is how it works, you are right, one must provide a minimal example or at least some actual code.
participants (3)
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Dennis Raddle -
Lana Black -
Niklas Hambüchen