FATAL: shmat(id=3342337) failed: Cannot allocate memory

Hi all

We are running postgres 9.1 on CentOS 5. We can’t start up postgres . It
complains about memory allocation . Please help

FATAL: shmat(id=3342337) failed: Cannot allocate memory

# - Memory -

shared_buffers = 310251

# (change requires restart)

#temp_buffers = 8MB # min 800kB

#max_prepared_transactions = 0 # zero disables the feature

# (change requires restart)

# Note: Increasing max_prepared_transactions costs ~600 bytes of shared
memory

# per transaction slot, plus lock space (see max_locks_per_transaction).

# It is not advisable to set max_prepared_transactions nonzero unless you

# actively intend to use prepared transactions.

work_mem = 32MB # min 64kB

maintenance_work_mem = 512MB # min 1MB

#max_stack_depth = 2MB # min 100kB

/etc/sysctl.conf

# Controls the default maxmimum size of a mesage queue

kernel.msgmax = 65536

# Controls the maximum shared segment size, in bytes

kernel.shmmax = 4294967295

# Controls the maximum number of shared memory segments, in pages

kernel.shmall = 26843545

------ Shared Memory Segments --------

key shmid owner perms bytes nattch status

0x7a014a02 32768 zabbix 666 971500 6

------ Semaphore Arrays --------

key semid owner perms nsems

0x7a014a02 0 zabbix 666 3

------ Message Queues --------

key msqid owner perms used-bytes messages

Thanks

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