Intermittent crashes on brolga in join.sql test

On 01/07/2018 03:51 PM, Thomas Munro wrote:

Hi Andrew,

As mentioned over here, but probably lost in the noise of that thread:

/messages/by-id/CAEepm=2r1svRUfeR1c9Z4UegkPdMw4gxyok4jCWf-h7kdqHHAA@mail.gmail.com

... there is an intermittent crash in my new Parallel Hash code that
occurs only on your 32 bit Windows XP + Cygwin animal "brolga".
Unfortunately I haven't managed to come up with a theory to explain
this using only brain power and tea.

Would you mind trying to get a backtrace from that system? Either
from a regular make check failure, or perhaps it can be provoked by
running the attached script? I don't know anything about Cygwin
myself but I see that it's possible to get a core file that gdb can
load with "dumper":

https://stackoverflow.com/questions/320001/using-a-stackdump-from-cygwin-executable
https://cygwin.com/cygwin-ug-net/dumper.html

Thanks,

This machine is now very old, and doesn't have gdb installed. The
chances of my getting a compatible one now are close to zero.

A better bet might be for me to revive my other 32 bit Cygwin instance,
cockatiel.

I'll look into that.

cheers

andrew

--
Andrew Dunstan https://www.2ndQuadrant.com
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