Hi,
>From shmget.2:
=======================================================================
SHMALL System wide maximum of shared memory pages. Since Linux 2.2,
the default value for this limit is
SHMMAX / PAGE_SIZE * (SHMMNI / 16)
Assuming a 4kB page size, this formula yields (since Linux 2.4)
the value 2^20 (2,097,152).
On Linux, this limit can be read and modified via /proc/sys/ker‐
nel/shmall.
=======================================================================
Linux 2.2 or 2.4 ?
I understand from lxr contant this is actually 2.4.
http://lxr.linux.no/#linux-old+v2.2.0/include/linux/shm.h#L53
http://lxr.linux.no/#linux-old+v2.4.0/include/linux/shm.h#L15
--
Simon Paillard
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