Re: Segmentation fault with 8.3 FTS ISpell

It'd be nice to have text string which cause segfault
and sql script for configuration.

Oleg
On Tue, 15 Jan 2008, Hannes Dorbath wrote:

> Crash happens about 7 minutes after issuing the UPDATE statement with current
> CVS HEAD. The table has around 5 million rows. It's always reproducible.
>
> ISpell dict used:
> http://www.sai.msu.su/~megera/postgres/gist/tsearch/V2/dicts/ispell/ispell-german-compound.tar.gz
> (iconved to UTF-8)
>
> Welcome to psql 8.3RC1, the PostgreSQL interactive terminal.
>
> Type: \copyright for distribution terms
> \h for help with SQL commands
> \? for help with psql commands
> \g or terminate with semicolon to execute query
> \q to quit
>
> test=# \dFd+ german_ispell
> List of text search dictionaries
> Schema | Name | Template | Init options
> | Description
> --------+---------------+-------------------+---------------------------------------------------------------+-------------
> public | german_ispell | pg_catalog.ispell | dictfile = 'german', afffile =
> 'german', stopwords = 'german' |
> (1 row)
>
> test=# \dF+ german_ispell
> Text search configuration "pg_catalog.german_ispell"
> Parser: "pg_catalog.default"
> Token | Dictionaries
> -----------------+---------------------------
> asciihword | german_ispell,german_stem
> asciiword | german_ispell,german_stem
> email | simple
> file | simple
> float | simple
> host | simple
> hword | german_ispell,german_stem
> hword_asciipart | german_ispell,german_stem
> hword_numpart | simple
> hword_part | german_ispell,german_stem
> int | simple
> numhword | simple
> numword | simple
> sfloat | simple
> uint | simple
> url | simple
> url_path | simple
> version | simple
> word | german_ispell,german_stem
>
>
> test=# SELECT ts_debug('autofahren');
> ts_debug
> -----------------------------------------------------------------------------------------------------------------
> (asciiword,"Word, all
> ASCII",autofahren,"{german_ispell,german_stem}",german_ispell,"{autofahren,auto,fahren}")
> (1 row)
>
> test=# \d+ test
> Table "public.test"
> Column | Type | Modifiers | Description
> --------+----------+---------------------------------------------------+-------------
> id | integer | not null default nextval('test_id_seq'::regclass) |
> text | text | not null |
> tsv | tsvector | |
> Indexes:
> "test_pkey" PRIMARY KEY, btree (id)
> Has OIDs: no
>
> test=# UPDATE test SET tsv = to_tsvector(text);
> server closed the connection unexpectedly
> This probably means the server terminated abnormally
> before or while processing the request.
> The connection to the server was lost. Attempting reset: WARNING: terminating
> connection because of crash of another server process
> DETAIL: The postmaster has commanded this server process to roll back the
> current transaction and exit, because another server process exited
> abnormally and possibly corrupted shared memory.
> HINT: In a moment you should be able to reconnect to the database and repeat
> your command.
> Failed.
> !>
>
> Jan 15 11:32:50 brainchild postmaster[14815] general protection rip:5bb287
> rsp:7fff4ec80290 error:0
>
> Jan 15 11:32:50 brainchild postgres[14788]: [3-1] LOG: server process (PID
> 14815) was terminated by signal 11: Segmentation fault
> Jan 15 11:32:50 brainchild postgres[14788]: [4-1] LOG: terminating any other
> active server processes
> Jan 15 11:32:50 brainchild postgres[14843]: [3-1] WARNING: terminating
> connection because of crash of another server process
> Jan 15 11:32:50 brainchild postgres[14843]: [3-2] DETAIL: The postmaster has
> commanded this server process to roll back the current transaction and exit,
> because another server
> Jan 15 11:32:50 brainchild postgres[14843]: [3-3] process exited abnormally
> and possibly corrupted shared memory.
> Jan 15 11:32:50 brainchild postgres[14843]: [3-4] HINT: In a moment you
> should be able to reconnect to the database and repeat your command.
> Jan 15 11:32:50 brainchild postgres[14788]: [5-1] LOG: all server processes
> terminated; reinitializing
> Jan 15 11:32:50 brainchild postgres[14788]: [6-1] LOG: shmctl(1343488, 0, 0)
> failed: Invalid argument
> Jan 15 11:32:50 brainchild postgres[14844]: [7-1] LOG: database system was
> interrupted; last known up at 2008-01-15 11:32:33 CET
> Jan 15 11:32:50 brainchild postgres[14844]: [8-1] LOG: database system was
> not properly shut down; automatic recovery in progress
> Jan 15 11:32:50 brainchild postgres[14844]: [9-1] LOG: redo starts at
> 8/DC07E0A0
> Jan 15 11:32:54 brainchild postgres[14844]: [10-1] LOG: unexpected pageaddr
> 8/BD59C000 in log file 8, segment 236, offset 5881856
> Jan 15 11:32:54 brainchild postgres[14844]: [11-1] LOG: redo done at
> 8/EC59BEE0
> Jan 15 11:32:55 brainchild postgres[14847]: [7-1] LOG: autovacuum launcher
> started
> Jan 15 11:32:55 brainchild postgres[14788]: [7-1] LOG: database system is
> ready to accept connections
>
>
>

Regards,
Oleg
_____________________________________________________________
Oleg Bartunov, Research Scientist, Head of AstroNet (www.astronet.ru)
Sternberg Astronomical Institute, Moscow University, Russia
Internet: oleg(at)sai(dot)msu(dot)su, http://www.sai.msu.su/~megera/
phone: +007(495)939-16-83, +007(495)939-23-83