[erlang-bugs] port_info crashes when called concurrently by two processes

[Anthony Ramine]

Le 12 mars 2015 à 16:00, Anthony Ramine <n.oxyde@REDACTED> a écrit :

> Le 11 mars 2015 à 19:12, Heinz Nikolaus Gies <heinz@REDACTED> a écrit :
> 
>> Adding more information,
>> this is related to SMP, if starting the erlang VM with -smp disable it does not crash.
> 
> Looked at it, the code uses static variables and that looks quite wrong.
> 
> https://github.com/erlang/otp/blob/36576d7de20e4e8cb7b3943cfe1b7e272b5e3971/erts/emulator/beam/io.c#L4484-4485

Removing static makes your test case not crash.

I made a pull request:

	https://github.com/erlang/otp/pull/643