linux-kernel - Re: [PATCH] Revert "x86: optimize page faults like all other achitectures and kill notifier cruft"

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Wed, 9 Jan 2008 08:17:27 +0100
From:	Christoph Hellwig <hch@....de>
To:	Dave Airlie <airlied@...ux.ie>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	torvalds@...ux-foundation.org, hch@....de, ak@...e.de, pq@....fi,
	jbeulich@...ell.com, mingo@...e.hu, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] Revert "x86: optimize page faults like all other achitectures and kill notifier cruft"

On Wed, Jan 09, 2008 at 02:34:46AM +0000, Dave Airlie wrote:
> 
> [This an initial RFC but I'd like to have this patch in before 2.6.24 goes 
> final as it really breaks this useful feature]
> 
> mmiotrace the MMIO access tracer used to reverse engineer binary blobs
> used this notifier interface and is planned on being pushed upstream.
> 
> Having users able to just use the tracer module without having to rebuild 
> their kernel to add in a page fault handler hack means we get a lot 
> greater coverage for reverse engineering efforts.
> 
> Signed-off-by: David Airlie <airlied@...ux.ie>
> 
> This reverts commit 74a0b5762713a26496db72eac34fbbed46f20fce.
> Conflicts:

NACK.   If you want to do it you'll need a much better reason and an
in-tree user.  And if you want to redo it it should be available for
all platforms with a consistant API.

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/