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From: "Rajeev Bector" <rajeev_bector@yahoo.com>
To: "Linux-Kernel" <linux-kernel@vger.kernel.org>
Subject: ptrace question
Date: Wed, 17 Oct 2001 09:23:38 -0700
Message-ID: <GIEMIEJKPLDGHDJKJELAEEBLCNAA.rajeev_bector@yahoo.com>
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I have a question on the ptrace system call
implementation:

In kernel/ptrace.c in the function access_one_page(),
why is read access denied to pages which are
marked PG_reserved ?

I have some pages in my driver which are reserved
and memory mapped to user applications which I'd
like to access in gdb.

Any clues to what is the risk if I were to enable
accessing of pages which are marked "reserved"

Thanks in advance !
Rajeev


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