[erlang-questions] Monitor limitations

[Siri Hansen]

>From the notes in the ticket:

"Some analysis yields that the cause is that the gen_server:start() call
ends up in erlang:spawn_opt(..., [monitor]) which return {Pid, Monitor},
making the proc_lib:sync_wait() wait for {Pid, Monitor} and not Pid
which is what the newly spawned process sends in the ack-message."

I haven't investigated further, so I don't know anything more about it. It
doesn't seem too hard to solve, though, so it seems strange that the
solution was to throw a badarg. Or maybe I missed something crucial...

/siri


2014-03-22 11:44 GMT+01:00 Michał Ptaszek <erlang@REDACTED>:

> Hey everyone,
>
> can anyone please shed some more light on OTP-6345?
>
> For some reasons we can not atomically spawn processes with
> proc_lib:spawn_opt with 'monitor' flag. The same problem happens with
> erlang:spawn_opt/5 where we can not spawn a remote process with 'monitor'
> (however linking is totally ok).
>
> Thanks,
> Michal
>
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