[BUGS] BUG #14790: pg_restore - segfault

The following bug has been logged on the website:

Bug reference:      14790
Logged by:          Laurent Soulis
Email address:      soleuu@gmail.com
PostgreSQL version: 9.5.8
Operating system:   linux - debian8 - amd64
Description:

Hello,


We are experiencing segfault during pg_restore. 
The problem appear to be a mix with multiple jobs (-j option) and table Data
exclusion (-l option). 
If we use 1 jobs and table exclusion => OK
if we use >=2 jobs without -l options => OK


We use a bash script every night to import prod database on dev
environnement. 
Since this update from 9.5.7 to 9.5.8, those error appeared at the first
excluded table DATA.


Here is a sample database test where we have segfault.


-----------------------------------------
## shell commands

#create test database with some fake data
createdb test_import
/usr/lib/postgresql/9.5/bin/psql -c 'create table "aaa" as SELECT
generate_series(1,10000) AS id, md5(random()::text) AS descr;' test_import
/usr/lib/postgresql/9.5/bin/psql -c 'create table "bbb" as SELECT
generate_series(1,10000) AS id, md5(random()::text) AS descr;' test_import

#dump database
pg_dump -Fc test_import -f test_import.dump

#exclude some "table Data" from list
pg_restore -l test_import.dump | egrep -v 'TABLE DATA public ('"aaa"') '  >
test_dump.list

#import in new database
createdb test_import2  
/usr/lib/postgresql/9.5/bin/pg_restore -v  -Fc -L test_dump.list -j 5 -d
test_import2 test_import.dump
-----------------------------

pg_restore ouput (verbose):

pg_restore: connexion à la base de données pour la restauration
pg_restore: traitement de l'élément 2107 ENCODING ENCODING
pg_restore: traitement de l'élément 2108 STDSTRINGS STDSTRINGS
pg_restore: traitement de l'élément 2109 DATABASE test_import
pg_restore: traitement de l'élément 6 SCHEMA public
pg_restore: création de SCHEMA « public »
pg_restore: traitement de l'élément 1 EXTENSION plpgsql
pg_restore: création de EXTENSION « plpgsql »
pg_restore: traitement de l'élément 181 TABLE aaa
pg_restore: création de TABLE « public.aaa »
Erreur de segmentation

Laurent S.


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