[Pharo-project] Instruments for headless images

Stéphane Ducasse stephane.ducasse at inria.fr
Fri Jan 21 14:48:20 EST 2011

> What is interesting (and we might make that an option) is that the 'no display' error results in the image being saved 'headfull' so that you can start it up using a display to debug it (suspended process/debugger).
>> That could be done.. but not as userful as simply report an error.
>> Usually we (developers) knowing what we want to do,
>> and what i don't want to see in my headless image is any attempts to
>> access display/ui.
> Yeah, that's why I said it would better be an option. The first thing to do is simply report the error (and quit, or maybe that should be an option too). But many people playing with headless images (myself included) have had blocking/locked up images: having a log would be great, but adding this option to debug the cause further would be great.
> Sven

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