From: Paul Mackerras <paulus@samba.org>
To: Gabriel Paubert <paubert@iram.es>
Cc: 'Albert Cahalan' <acahalan@gmail.com>,
debian-powerpc@lists.debian.org, linuxppc-dev@ozlabs.org
Subject: Re: PowerPC paxtest results w/ gcc-4.1
Date: Wed, 16 Aug 2006 21:07:44 +1000 [thread overview]
Message-ID: <17634.64640.709200.871907@cargo.ozlabs.ibm.com> (raw)
In-Reply-To: <20060816105925.GB21865@iram.es>
Gabriel Paubert writes:
> I agree, but I don't know why you believe it would cause
> a machine check (0x200): from my docs, it is an ISI (0x400).
I don't believe it would cause a machine check either, but that is
what Matt Sealey was saying. I don't know where he got that idea.
> BTW, there is one way to make pages non executable: mark
> them as guarded, but it will have a significant cost in
> terms of performance.
Indeed. I guess we could do that as a config option for machines that
really want maximum security at the expense of performance, but I
don't think all users would want that.
Paul.
next prev parent reply other threads:[~2006-08-16 11:07 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-08-12 5:50 PowerPC paxtest results w/ gcc-4.1 Albert Cahalan
2006-08-12 11:35 ` Paul Mackerras
2006-08-12 14:36 ` Albert Cahalan
2006-08-12 23:54 ` Paul Mackerras
2006-08-13 2:48 ` Albert Cahalan
2006-08-13 3:23 ` Paul Mackerras
2006-08-13 4:11 ` Albert Cahalan
2006-08-13 16:45 ` Hollis Blanchard
2006-08-13 18:59 ` Albert Cahalan
2006-08-14 12:17 ` Matt Sealey
2006-08-14 14:20 ` Kumar Gala
2006-08-13 3:29 ` Alan Modra
2006-08-13 18:56 ` Albert Cahalan
2006-08-14 11:50 ` Matt Sealey
2006-08-15 3:59 ` Paul Mackerras
2006-08-16 10:59 ` Gabriel Paubert
2006-08-16 11:07 ` Paul Mackerras [this message]
2006-08-16 14:43 ` Albert Cahalan
2006-08-16 17:49 ` Segher Boessenkool
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