[erlang-questions] Port process exits with status einval while external program still runs

[Khitai Pang]

No it can't be the case, port_command will return error and the data 
will not be sent to the port.  This is really weird, this erlang app has 
been running for a month and millions and millions of messages have been 
processed by the ports, and this is first time I see port process exit 
with einval and external prog still runs.

Thanks
Khitai

On 2017/5/27 23:42, Khitai Pang wrote:
> The port is opened with {packet, 2}, I'm guessing that the data sent to
> the port is too big and it's size can't fit in a two-byte integer.
>
> Thanks
> Khitai
>
> On 2017/5/27 23:31, Khitai Pang wrote:
>> I have observed a situation where the port process exits with reason
>> 'einval' but the external program still runs.  The connected process of
>> the port receives {EXIT,#Port<0.3069817>,einval}.  What makes a port
>> process exit with 'einval' while the external program still runs?
>>
>>
>> Thanks
>> Khitai
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