From mboxrd@z Thu Jan 1 00:00:00 1970 From: KAMEZAWA Hiroyuki Date: Tue, 12 Jul 2005 01:16:47 +0000 Subject: Re: [PATCH] enable to read region 5 from /dev/kmem Message-Id: <42D319FF.40604@jp.fujitsu.com> List-Id: References: <42C501CD.4010907@jp.fujitsu.com> In-Reply-To: <42C501CD.4010907@jp.fujitsu.com> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-ia64@vger.kernel.org Chen, Kenneth W wrote: > KAMEZAWA Hiroyuki wrote on Monday, July 11, 2005 5:14 PM > >>By the way, can ia64's copy_to_user(from, buf, size) catch bad "from" ? > > > Yes, it has exception handler for both source and destination address. > Thank you. One more question: Is a user allowd to access region 0-4 from /dev/kmem ? (I thnk it's not allowed) This patch disables that. Regards, Kamezawa Hiroyuki