in reply to Re^2: glibc detected error with sth->{db2_more_results}
in thread glibc detected error with sth->{db2_more_results}

That "double free or corruption" error is coming from glibc. Means that one of your libraries is doing a double free on some variable somewhere. There's little you can do except find a version where that bug doesn't happen, or file a bug with the author of the problematic library (probably one of your database libraries).

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Re^4: glibc detected error with sth->{db2_more_results}
by Anonymous Monk on Jan 12, 2012 at 12:11 UTC

    Oh, forgot to mention: You can suppress that check with the environment variable MALLOC_CHECK_=0, but it's still a bug in one of your libraries and you are likely to crash sooner or later. GlibC's default behaviour is just to stop immediately.

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