Killing the backends

SELECT int8in(8);
OVER psql do:
llamados=> SELECT int8in(8);
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:
Failed.
!>

In psql superuser an other terminal:
NOTICE: Message from PostgreSQL backend:
The Postmaster has informed me that some other backend
died abnormally and possibly corrupted shared
memory.
I have rolled back the current
transaction and am
going to terminate your database
system connection and exit.
Please reconnect to the
database system and repeat your query.

In other Terminal
BEFORE
:~$ pidof postmaster
15489 15488 15474 338 337 335
AFTER
:~$ pidof postmaster
338 337 335

PC:
i386->Celeron300
Linux->Debian->Kernel 2.2.18
Postgresql->7.2.1-2woody2 -> PostgreSQL 7.2.1 on i686-pc-linux-gnu,
compiled by GCC 2.95.4
BYE

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