[PD] pd 0.47.1 Changing Block Size in Audio Settings hangs program

[Christof Ressi]

Pd also freezes with the same symptoms (CPU usage rises to max) whenever you try to set a latency smaller than the block size. Pd should check against this case and issue a warning instead of freezing. since block size and latency are in different units (samples vs milliseconds) it's quite easiy to mess things up. This is true for ASIO, don't know about other platforms. maybe these to issues are somehow related?

> Gesendet: Mittwoch, 19. April 2017 um 12:30 Uhr
> Von: "Leo Wang TIC-work" <leointic at hotmail.com>
> An: "pd-list at lists.iem.at" <pd-list at lists.iem.at>
> Betreff: [PD] pd 0.47.1 Changing Block Size in Audio Settings hangs program
>
> It is possibly a bug. 
> OS: Mac OSX 10.11.6
> Problem: 
> when change the default value from 64 to 128. the program hangs. and you have to force quit PD. And the CPU utilisation shot to 100%.
> same thing happens on Windows10 pd0.47.1
> 
> Many thanks
> Leo
> 
> 
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