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bbfa235
(Get the code!)
(i just sent this to the list, but putting here too)
While I agree that a coredump is not that likely to help, I would also
like to come to that conclusion after inspecting a coredump :) I've
found things in the heap before that give clues as to what real
problems are.
To this end, I've proposed [2] to keep coredumps. It's a little
hackish but I think gets the job done. [3] enables this and saves any
dumps to the logs in d-g.
As suggested, running under valgrind would be great but probably
impractical until we narrow it down a little. Another thing I've had
some success with is electric fence [4] which puts boundaries around
allocations so out-of-bounds access hits at the time of access. I've
proposed [5] to try this out, but it's not looking particularly
promising unfortunately. I'm open to suggestions, for example maybe
something like tcalloc might give us a different failure and could be
another clue. If we get something vaguely reliable here, our best bet
might be to run a parallel non-voting job on all changes to see what
we can pick up.
[1] https:/
[2] https:/
[3] https:/
[4] http://
[5] https:/