Problems restoring big tables

Hi all,

I have to restore a database that its dump using custom format (-Fc)
takes about 2.3GB. To speed the restore first I have restored everything
except (played with pg_restore -l) the contents of some tables that's
where most of the data is stored. This server is a debian running
PostgreSQL 8.1.4. When I try to restore these table's contents I've got
an error:

$ time pg_restore -v -d espsm_asme -O -L
espsm_asme_components_statistics_data.list espsm_asme-20070105-0619.custom
pg_restore: connecting to database for restore
pg_restore: implied data-only restore
pg_restore: restoring data for table "statistics_operators"
pg_restore: ERROR: out of memory
DETAIL: Failed on request of size 32.
CONTEXT: COPY statistics_operators, line 25663678: "137320348 58618027
20060804220356-1-93-3096 \N 2006-08-04 22:03:56+02
1 34675522993 5755 71 1 6 \N"
pg_restore: [archiver (db)] error returned by PQendcopy: ERROR: out of
memory
DETAIL: Failed on request of size 32.
CONTEXT: COPY statistics_operators, line 25663678: "137320348 58618027
20060804220356-1-93-3096 \N 2006-08-04 22:03:56+02
1 34675522993 5755 71 1 6 \N"
pg_restore: *** aborted because of error

real 23m16.490s
user 1m55.203s
sys 0m5.672s

I don't know how I can solve this. This server has 4GB of RAM plenty of
space in the disks.

asme(at)SMLDB005:~/asme_restore$ df -h
Filesystem Size Used Avail Use% Mounted on
/dev/sda1 28G 2.8G 24G 11% /
tmpfs 2.0G 0 2.0G 0% /dev/shm
/dev/sdb1 34G 161M 32G 1% /dblog
/dev/sdc1 135G 6.2G 122G 5% /srv
tmpfs 10M 44K 10M 1% /dev

asme(at)SMLDB005:~/asme_restore$ cat /proc/sys/kernel/shmmax
163840000

Any idea about how to fix this?

Regards
--
Arnau