Re: [Linux-ia64] Max size of shared memory segment.

From: David Mosberger <>
Date: 2001-06-12 08:38:29
>>>>> On Mon, 11 Jun 2001 14:31:32 -0700, Michael Madore <> said:

  Mike> Hi, What is the maximum size a shared memory segment can have
  Mike> on linux IA64?

By default, it's 32MB but you can change that via
/proc/sys/kernel/shmmax.  There is no a priori limit for how big a
value you can install there, but on IA-64 Linux you'll be limited to
what fits in a single region.  With 16KB pages, that would be 16TB.

Received on Mon Jun 11 15:41:59 2001

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