Comment 14 for bug 264336

I rebooted my machine with some logging in the postgres startup script.

[at boot time]
$ ipcs -m
------ Shared Memory Segments --------
key shmid owner perms bytes nattch status

$ sysctl -a | grep -i shm
kernel.shmmax = 33554432
kernel.shmall = 2097152
kernel.shmmni = 4096

[logged in later]
$ ipcs -m
------ Shared Memory Segments --------
key shmid owner perms bytes nattch status
0x00000000 0 root 700 16777216 1 dest
0x00000000 32769 root 700 16777216 1 dest
0x00000000 65538 root 700 16777216 1 dest

$ sysctl -a | grep -i shm
kernel.shmmax = 268435456
kernel.shmall = 2097152
kernel.shmmni = 4096