Re: Polygon contrib - Mailing list pgsql-patches

Well, i've done it.. and here what it's doing :



There is absolutely no warranty for GDB.  Type "show warranty" for
details.
This GDB was configured as "i386-linux"...(no debugging symbols
found)...

warning: core file may not match specified executable file.
Core was generated by `postgres: postgres SaDAMS 127.0.0.1'.
Program terminated with signal 11, Segmentation fault.
Reading symbols from /lib/libpam.so.0...(no debugging symbols
found)...done.
Loaded symbols for /lib/libpam.so.0
Reading symbols from /usr/lib/libssl.so.0.9.6...(no debugging symbols
found)...
done.
Loaded symbols for /usr/lib/libssl.so.0.9.6
Reading symbols from /usr/lib/libcrypto.so.0.9.6...
(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libcrypto.so.0.9.6
Reading symbols from /usr/lib/libz.so.1...(no debugging symbols
found)...done.
Loaded symbols for /usr/lib/libz.so.1
Reading symbols from /lib/libcrypt.so.1...(no debugging symbols
found)...done.
Loaded symbols for /lib/libcrypt.so.1
Reading symbols from /lib/libresolv.so.2...(no debugging symbols
found)...done.
Loaded symbols for /lib/libresolv.so.2
Reading symbols from /lib/libnsl.so.1...(no debugging symbols
found)...done.
Loaded symbols for /lib/libnsl.so.1
Reading symbols from /lib/libdl.so.2...(no debugging symbols
found)...done.
Loaded symbols for /lib/libdl.so.2
Reading symbols from /lib/libm.so.6...(no debugging symbols
found)...done.
Loaded symbols for /lib/libm.so.6
Reading symbols from /lib/libreadline.so.4...(no debugging symbols
found)...
done.
Loaded symbols for /lib/libreadline.so.4
Reading symbols from /lib/libc.so.6...(no debugging symbols
found)...done.
Loaded symbols for /lib/libc.so.6
Reading symbols from /lib/libncurses.so.5...(no debugging symbols
found)...
done.
Loaded symbols for /lib/libncurses.so.5
Reading symbols from /lib/ld-linux.so.2...(no debugging symbols
found)...done.
Loaded symbols for /lib/ld-linux.so.2
Reading symbols from /lib/libnss_files.so.2...(no debugging symbols
found)...
done.
Loaded symbols for /lib/libnss_files.so.2
Reading symbols from /usr/lib/postgresql/lib/polygons_utils.so...
(no debugging symbols found)...done.
Loaded symbols for /usr/lib/postgresql/lib/polygons_utils.so
#0  0x08152bd9 in pg_detoast_datum ()
(gdb) bt
#0  0x08152bd9 in pg_detoast_datum ()
#1  0x4001ab72 in poly_center () from
/usr/lib/postgresql/lib/polygons_utils.so
#2  0x08151c5e in fmgr_internal_function ()
#3  0x080c50bd in ExecMakeFunctionResult ()
#4  0x080c5122 in ExecMakeFunctionResult ()
#5  0x080c56a0 in ExecEvalExpr ()
#6  0x080c5989 in ExecCleanTargetListLength ()
#7  0x080c5c1b in ExecProject ()
#8  0x080cb413 in ExecResult ()
#9  0x080c4119 in ExecProcNode ()
#10 0x080c30fe in ExecutorEnd ()
#11 0x080c2797 in ExecutorRun ()
#12 0x081104de in ProcessQuery ()
#13 0x0810ed70 in pg_exec_query_string ()
#14 0x0810fd5e in PostgresMain ()
#15 0x080f6d4e in ClosePostmasterPorts ()
#16 0x080f669f in ClosePostmasterPorts ()
#17 0x080f5882 in PostmasterMain ()
#18 0x080f5391 in PostmasterMain ()
#19 0x080d4e18 in main ()
#20 0x401d414f in __libc_start_main () from /lib/libc.so.6



As i was expecting, it seems to segfaut because i use postgres code
spectific constants such as :
PG_FUNCTION_ARGS

in my contrib.....
i was quite easy and handy, so i have no hesitation to do it... ;( but
then.. seems to not be working... ;(((

is there a easy solution to make it work in contrib librarys ?

Pierre-Yves Landuré






Le jeu 08/08/2002 à 08:49, Pierre-Yves LANDURE a écrit :
> ok, will do that , thx for your help ;)
>
> Pierre-Yves Landuré
>
> Le jeu 08/08/2002 à 08:45, Tom Lane a écrit :
> > Pierre-Yves LANDURE <pylandur@ifremer.fr> writes:
> > > and, to ask a stupid question..... How can i do a stack trace ;))))
> >
> > Something like
> >
> >     gdb /path/to/postgres-executable /path/to/corefile
> >     gdb> bt
> >     gdb> quit
> >
> > If you do not see a core file in the $PGDATA/base/yourdbnumber/
> > directory, you probably are running the postmaster with core dumps
> > disabled by ulimit.  Try setting "ulimit -c unlimited" in the
> > script that starts it.
> >
> > If the bt command produces a bunch of numbers and no routine names, you
> > need to recompile with debug symbols --- rerun configure adding
> > "--enable-debug", then rebuild and reinstall.
> >
> >             regards, tom lane
> >
> > ---------------------------(end of broadcast)---------------------------
> > TIP 4: Don't 'kill -9' the postmaster
>
>
>
> ---------------------------(end of broadcast)---------------------------
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>
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