[BUGS] BUG #14462: Segment Fault recovery mode

The following bug has been logged on the website:

Bug reference:      14462
Logged by:          Lara Schembri
Email address:      lara.schembri@nyxgg.com
PostgreSQL version: 9.3.15
Operating system:   Centos 6.8
Description:

Hi,

While a running a vacuum, the database crashed for 20 seconds and went into
recovery mode.

< 2016-12-12 08:52:25.163 UTC >LOG:  server process (PID 40436) was
terminated by signal 11: Segmentation fault
< 2016-12-12 08:52:25.163 UTC >DETAIL:  Failed process was running: VACUUM
(FREEZE, VERBOSE, ANALYZE);
< 2016-12-12 08:52:25.163 UTC >LOG:  terminating any other active server
processes

INFO:  analyzing "public.<<table>>"
INFO:  "<<table>>": scanned 150000 of 14701352 pages, containing 6786398
live rows and 1026 dead rows; 150000 rows in sample, 665186112 estimated
total rows
vacuumdb: vacuuming of database "" failed: server closed the connection
unexpectedly
        This probably means the server terminated abnormally
        before or while processing the request.

In /var/messages/log

Dec 12 08:52:25 kernel: postmaster[40436]: segfault at 154f209d ip
000000000045da6c sp 00007ffe597fd7e0 error 4 in postgres[400000+519000]

Can you please help on what might be the issue?

Thanks and regards
Lara




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