Re: Help with pdumper

[Stefan Monnier <monnier@iro.umontreal.ca>]

>> I'm playing with replacing the linked-list of markers with an ordered
>> array of markers.  I'm now stuck (as is sadly often the case in such
>> endeavors) with a pdumper problem.
> Have you tried running under rr and using watchpoints (which fire even when
> running reversed) to figure out where the bad value is coming from?

I don't know which value is wrong, to be honest, and even less where
it's stored, making it difficult to trace its origin.

>> Any idea what I'm doing wrong in my code and/or why
>> `dump_find_relocation` might return a "relocation type" of
>> RELOC_NATIVE_SUBR for this marker?
>> Or any other thing I could try to track down the origin of the problem?
> Supposing we have the wrong relocation type in the dump itself, you can find
> the offset relative to dump start of the has value

The offset of what?  What has[h?] value?

Any comment about the diff I sent, like something that looked suspicious?
Or does it look sane and the problem is probably elsewhere (like some
memory corruption that just happens to mess up the dump)?


        Stefan "quite lost"