[PD] Pd and computer crash/freeze when using [comport], bug?

[Alexandros]

This has to do with the abstraction I made then. We did discuss about it 
on Pd's forum, but it didn't occur to me that this could be the case. 
I'll have a look at it and get back to you.

On 9/4/21 5:10 μ.μ., Nicklas Lundberg wrote:
> Hmm, it does not crash when [serial_print any] is disconnected. You 
> can quit normally.
>
> This may be relevant:
>
> Pd console reports no errors when communication fails when trying too 
> fast updates (with [serial_print any] disconnected less than 30 ms).
>
> I uploaded a similar setup (pd patch+arduino sketch) to the folder. 
> Here it does not crash even if updates are sent every 1 ms. And the pd 
> console starts to write error messages when the communication is too 
> fast (starts around 7 ms).
>
> Den fre 9 apr. 2021 kl 15:37 skrev Martin Peach <chakekatzil at gmail.com 
> <mailto:chakekatzil at gmail.com>>:
>
>     Does it still crash if you disconnect the [serial_print-any]
>     abstraction from [comport]?
>
>     Martin
>
>     On Fri, Apr 9, 2021 at 7:45 AM Nicklas Lundberg
>     <nlundberg at gmail.com <mailto:nlundberg at gmail.com>> wrote:
>     >>
>     >> On Fri, 2021-04-09 at 09:31 +0200, Nicklas Lundberg wrote:
>     >>
>     >> > [comport] is communicating with an Arduino Nano over USB to
>     control
>     >> > PWM pins.
>     >> >
>     >> > If [comport] is receiving messages faster than 50 ms Pd will
>     freeze,
>     >> > has to be force quitted, system gets sluggish, and the
>     computer has
>     >> > to be restarted.
>     >> >
>     >> > I can replicate it and it happens every time. I wonder if
>     this should
>     >> > be reported as a bug or if it is expected behavior in the
>     specific
>     >> > setting.
>     >>
>     >>
>     >> While not suggesting that I'd be able to help, can you provide some
>     >> more information, ideally providing a minimal patch that
>     triggers the
>     >> behaviour?
>     >>
>     >> Also what versions are involved: OS, Pd, comport?
>     >>
>     >> Roman
>     >
>     >
>     > Pd/Arduino codes and crash instructions in this folder:
>     >
>     >
>     https://drive.google.com/drive/folders/1oDxeFCc63tvdgP6CWguJmBdfekAAMOrQ?usp=sharing
>     <https://drive.google.com/drive/folders/1oDxeFCc63tvdgP6CWguJmBdfekAAMOrQ?usp=sharing>
>     >
>     > comport 1.1.1
>     > Pd-0.51-4
>     > MacOS Mojave 10.14.6
>     > MacBook Air 11" mid 2012
>     >
>     > to crash pd and computer:
>     > Upload sketch to Ardunio (Nano)
>     > Open comport serial communication
>     > activate dsp
>     > Set metro object to less than 50 ms
>     > Toggle metro on to crash
>     > _______________________________________________
>     > Pd-list at lists.iem.at <mailto:Pd-list at lists.iem.at> mailing list
>     > UNSUBSCRIBE and account-management ->
>     https://lists.puredata.info/listinfo/pd-list
>     <https://lists.puredata.info/listinfo/pd-list>
>
>
> _______________________________________________
> Pd-list at lists.iem.at mailing list
> UNSUBSCRIBE and account-management -> https://lists.puredata.info/listinfo/pd-list
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.puredata.info/pipermail/pd-list/attachments/20210409/a68d453a/attachment-0001.htm>