Anyone have any suggestions or pointers (resources,tutorials,etc) on how to debug segmentation faults? I'm not looking for an answer to what is causing this rather suggestions on how to find the problem.

I'm using XS to implement custom '~' magic on a variable. It all works fine except when the SV get's garbage collected. Regardless of whether or not I have magic virtual table functions it just keeps seg faulting. (If they are supplied they are called successfully but then BOOM!)

I have absolutely know idea how to debug this. I've checked that the SV and the MAGIC structures are valid and point to valid things and they do. Something during the freeing of this scalar is doing somthing naughty. (If the ref attached is an object it's destructor is executed before it blows up) So I know it must be in the freeing of the scalar but other than that I can't figure it out.

I'm running 5.6.1 compiled without the -DDEBUGGING flag. Should I make a new perl source and just put printfs everywhere?
Any suggestions, tools, etc would be appreciated.

Thanks,
-Lee

"To be civilized is to deny one's nature."

In reply to XS Debugging segmentation faults by shotgunefx

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