From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: "Larry H." <research@subreption.com>
Cc: Ingo Molnar <mingo@elte.hu>, Rik van Riel <riel@redhat.com>,
linux-kernel@vger.kernel.org, Linus Torvalds <torvalds@osdl.org>,
linux-mm@kvack.org, Ingo Molnar <mingo@redhat.com>,
pageexec@freemail.hu
Subject: Re: [patch 0/5] Support for sanitization flag in low-level page allocator
Date: Fri, 22 May 2009 14:39:14 +0100 [thread overview]
Message-ID: <20090522143914.2019dd47@lxorguk.ukuu.org.uk> (raw)
In-Reply-To: <20090522113809.GB13971@oblivion.subreption.com>
> > performance point of view: we _dont_ want to clear the full stack
> > page for every kernel thread exiting.
>
> Burning the stack there is beyond overkill.
Yet most of our historic leaks have been padding bytes in stack based
structures. Your position seems very inconsistent.
next prev parent reply other threads:[~2009-05-22 13:39 UTC|newest]
Thread overview: 105+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-05-20 18:30 Larry H.
2009-05-20 20:42 ` Peter Zijlstra
2009-05-20 21:24 ` Larry H.
2009-05-21 15:21 ` Robin Holt
2009-05-21 18:43 ` Larry H.
2009-05-29 22:58 ` Andrew Morton
2009-05-30 7:12 ` Pekka Enberg
2009-05-30 7:35 ` Larry H.
2009-05-30 7:39 ` Pekka Enberg
2009-05-21 19:08 ` Rik van Riel
2009-05-21 19:26 ` Alan Cox
2009-05-21 19:56 ` Larry H.
2009-05-21 20:47 ` Alan Cox
[not found] ` <20090521214638.GL10756@oblivion.subreption.com>
2009-05-21 22:47 ` Alan Cox
2009-05-22 11:22 ` Larry H.
2009-05-22 13:37 ` Alan Cox
2009-05-26 19:02 ` Pavel Machek
[not found] ` <4A15A8C7.2030505@redhat.com>
[not found] ` <20090522073436.GA3612@elte.hu>
2009-05-22 11:38 ` Larry H.
2009-05-22 13:39 ` Alan Cox [this message]
2009-05-22 18:03 ` Larry H.
2009-05-22 18:21 ` Alan Cox
[not found] ` <20090522234031.GH13971@oblivion.subreption.com>
2009-05-23 8:09 ` Alan Cox
2009-05-23 15:56 ` Arjan van de Ven
2009-05-23 18:21 ` [PATCH] Support for unconditional page sanitization Larry H.
2009-05-23 21:05 ` Arjan van de Ven
2009-05-24 10:19 ` pageexec
2009-05-24 16:38 ` Arjan van de Ven
2009-05-28 19:36 ` [patch 0/5] Support for sanitization flag in low-level page allocator Peter Zijlstra
2009-05-29 14:32 ` Arjan van de Ven
2009-05-30 5:48 ` Larry H.
2009-05-30 10:39 ` Peter Zijlstra
2009-05-30 10:43 ` Larry H.
2009-05-30 11:42 ` pageexec
2009-05-30 13:21 ` Peter Zijlstra
2009-05-30 13:24 ` Peter Zijlstra
2009-05-30 13:54 ` pageexec
2009-05-30 14:04 ` Larry H.
2009-05-30 14:13 ` Rik van Riel
2009-05-30 14:08 ` Rik van Riel
[not found] ` <20090530153023.45600fd2@lxorguk.ukuu.org.uk>
2009-05-30 14:45 ` Peter Zijlstra
2009-05-30 14:48 ` Rik van Riel
2009-05-30 17:00 ` Larry H.
2009-05-30 17:25 ` Larry H.
2009-05-30 18:32 ` Ingo Molnar
2009-05-31 14:38 ` Arjan van de Ven
2009-05-31 15:03 ` Arjan van de Ven
2009-05-22 18:37 ` Nai Xia
2009-05-22 19:18 ` Nai Xia
2009-05-23 12:49 ` Ingo Molnar
2009-05-23 22:28 ` Larry H.
2009-05-23 22:42 ` Rik van Riel
2009-05-25 1:17 ` [PATCH] Sanitize memory on kfree() and kmem_cache_free() Larry H.
2009-05-27 22:34 ` [patch 0/5] Support for sanitization flag in low-level page allocator Ingo Molnar
2009-05-28 6:27 ` Alan Cox
2009-05-28 7:00 ` Larry H.
2009-05-28 9:08 ` Ingo Molnar
2009-05-28 11:50 ` Alan Cox
2009-05-28 19:44 ` Peter Zijlstra
2009-05-30 7:35 ` Pekka Enberg
2009-05-30 7:50 ` Larry H.
2009-05-30 7:53 ` Pekka Enberg
2009-05-30 8:20 ` Larry H.
2009-05-30 8:33 ` Pekka Enberg
2009-05-30 15:05 ` Ray Lee
2009-05-30 17:34 ` Ingo Molnar
2009-05-30 18:03 ` Larry H.
2009-05-30 18:21 ` Ingo Molnar
2009-05-30 18:45 ` Larry H.
2009-05-30 19:08 ` Ingo Molnar
2009-05-30 20:39 ` Rik van Riel
2009-05-30 20:53 ` Pekka Enberg
2009-05-30 21:33 ` Larry H.
2009-05-30 23:13 ` Alan Cox
2009-05-30 23:18 ` Larry H.
2009-05-31 6:30 ` Pekka Enberg
2009-05-31 11:49 ` Larry H.
2009-05-31 7:17 ` Pekka Enberg
2009-05-31 11:58 ` Larry H.
2009-05-31 12:16 ` Pekka Enberg
2009-05-31 12:30 ` Larry H.
2009-05-31 12:35 ` Pekka Enberg
2009-05-30 23:10 ` Alan Cox
2009-05-31 6:14 ` Pekka Enberg
2009-05-31 10:24 ` Alan Cox
2009-05-31 10:24 ` Pekka Enberg
2009-05-31 12:16 ` Larry H.
2009-05-31 12:19 ` Pekka Enberg
2009-05-31 16:25 ` Alan Cox
2009-05-30 22:10 ` Ingo Molnar
2009-05-30 23:15 ` Alan Cox
2009-05-30 20:22 ` Pekka Enberg
2009-05-30 22:14 ` Ingo Molnar
2009-05-30 17:39 ` Ingo Molnar
2009-05-30 7:57 ` Pekka Enberg
2009-05-30 9:05 ` Larry H.
2009-05-30 17:46 ` Ingo Molnar
2009-05-30 18:09 ` Larry H.
2009-05-30 8:31 ` Alan Cox
2009-05-30 8:35 ` Pekka Enberg
2009-05-30 9:27 ` Larry H.
2009-05-28 18:48 ` pageexec
2009-05-30 17:50 ` Ingo Molnar
2009-05-28 12:48 ` Pavel Machek
2009-05-28 12:55 ` Larry H.
2009-05-28 18:56 pageexec
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