I happened to build in a shell that was still set up for the clang
address sanitizer, and got the attached report. On a rerun it was
repeatable. XLogInsert() seems to read past the end of a variable
allocated on the stack in doPickSplit(). I haven't tried to analyze
it past that, since this part of the code is unfamiliar to me.
--
Kevin Grittner
EDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company