[Vm-dev] [OpenSmalltalk/opensmalltalk-vm] Reproduceable Segmentation fault while saving images (#444)

Eliot Miranda notifications at github.com
Tue Nov 19 04:21:50 UTC 2019


> If I run gccrash.st with the assert VM I get:
> 
> ```
> ((classIndex >= 1) && (classIndex <= (classTablePageSize()))) 50170
> 
> ((classIndex >= 1) && (classIndex <= (classTablePageSize()))) 50170
> ```
> 
> before the process seg faults.
> 
> Do these provide any additional information to help track down the issue? (I'll include more complete information below)

The way to use the assert failures to track down bugs is to run under the debugger, place a breakpoint in warning (the print function for assert failures), and then run.  When you reach an assert fail you can then print the stack trace, etc.  So the assert message on its own tells you something is wrong, but one needs to use the debugging facilities to get more information.


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