On Mon, Nov 16, 2015 at 2:51 PM, Bert <bier...@gmail.com> wrote: > I've just pulled and compiled the new code. > I'm running a TPC-DS like test on different PostgreSQL installations, but > running (max) 12queries in parallel on a server with 12cores. > I've configured max_parallel_degree to 2, and I get messages that backend > processes crash. > I am running the same test now with 6queries in parallel, and parallel > degree to 2, and they seem to work. for now. :) > > This is the output I get in /var/log/messages > Nov 16 20:40:05 woludwha02 kernel: postgres[22918]: segfault at 7fa3437bf104 > ip 0000000000490b56 sp 00007ffdf2f083a0 error 6 in postgres[400000+5b5000] > > Is there something else I should get?
Can you enable core dumps e.g. by passing the -c option to pg_ctl start? If you can get a core file, you can then get a backtrace using: gdb /path/to/postgres /path/to/core bt full q That should be enough to find and fix whatever the bug is. Thanks for testing. -- Robert Haas EnterpriseDB: http://www.enterprisedb.com The Enterprise PostgreSQL Company -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
