From mboxrd@z Thu Jan  1 00:00:00 1970
From: roneng@ca.ibm.com
Date: Thu, 18 May 2000 19:25:50 +0000
Subject: [Linux-ia64] Shared memory
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To: linux-ia64@vger.kernel.org


Hi,
Has anyone had a problem using the shmctl function to change the access
mode of a shared memory
block?

What I am doing is allocating shared memory using mode 666, and writing to
it, then I use shmctl to change its
mode to 600, switch to another userid using su, and try and read from the
shared memory block. on ia32 linux
I get an permission denied error, on ia64 with the latest turbolinux kernel
and glibc i can read from that memory
block.


Thank you,
Ronen Grosman
- Phone: Internal:778-4478     External: (416)-448-4478    Fax:
(416)448-4414
- e-mail roneng@ca.ibm.com