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From: "Pekka Enberg" <penberg@cs.helsinki.fi>
To: Steve VanDeBogart <vandebo-lkml@nerdbox.net>
Cc: user-mode-linux-devel@lists.sourceforge.net,
	linux-kernel@vger.kernel.org,
	"Paul E. McKenney" <paulmck@us.ibm.com>,
	Ingo Molnar <mingo@elte.hu>,
	dkegel@google.com, jiayingz@google.com
Subject: Re: [uml-devel] [PATCH 5/6] slab: Annotate slab
Date: Thu, 4 Sep 2008 10:33:54 +0300	[thread overview]
Message-ID: <84144f020809040033h6872ecfdlfb7d7cdb57621b0d@mail.gmail.com> (raw)
In-Reply-To: <alpine.DEB.1.00.0809030833050.15543@abydos.NerdBox.Net>

Hi Steve,

On Wed, Sep 3, 2008 at 6:42 PM, Steve VanDeBogart
<vandebo-lkml@nerdbox.net> wrote:
> But which bits of a slab object should be marked as initialized at
> kmem_cache_alloc() time?  We can't mark all of them as initialized
> because the constructor may not initialize all of them (in fact, I've
> programmatically confirmed that there are constructors that don't
> initialize all the bytes of an object).  The only place to get the
> information of interest is to mark all bytes uninitialized and then
> run the constructor on the memory region.

Aah, indeed. We should fix kmemcheck as well then.

                      Pekka

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  reply	other threads:[~2008-09-04  7:33 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-08-29 23:12 [uml-devel] [PATCH 0/6] support valgrinding uml Steve VanDeBogart
2008-08-29 23:14 ` [uml-devel] [PATCH 1/6] base: Valgrind headers and Kconfig Steve VanDeBogart
2008-09-01  9:32   ` Andi Kleen
2008-09-01 14:06     ` Jeff Dike
2008-09-01 14:22       ` Andi Kleen
2008-09-01 15:47         ` Jeff Dike
2008-08-29 23:15 ` [uml-devel] [PATCH 2/6] UML: Don't valgrind userspace Steve VanDeBogart
2008-09-05 16:37   ` Jeff Dike
2008-09-06 20:55     ` John Reiser
2008-09-06 22:12       ` Jeff Dike
2008-08-29 23:16 ` [uml-devel] [PATCH 3/6] UML and sched: Annotate stacks Steve VanDeBogart
2008-08-29 23:16 ` [uml-devel] [PATCH 4/6] VM: Annotate pagealloc Steve VanDeBogart
2008-08-30 10:57   ` Pekka Enberg
2008-09-03  5:25     ` Steve VanDeBogart
2008-09-03  9:35       ` Pekka Enberg
2008-08-29 23:17 ` [uml-devel] [PATCH 5/6] slab: Annotate slab Steve VanDeBogart
2008-08-30 10:50   ` Pekka Enberg
2008-09-03  2:54     ` John Reiser
2008-09-03  9:39       ` Pekka J Enberg
2008-09-03  5:08     ` Steve VanDeBogart
2008-09-03  9:27       ` Pekka Enberg
2008-09-03  9:40         ` Pekka Enberg
2008-09-03 15:42         ` Steve VanDeBogart
2008-09-04  7:33           ` Pekka Enberg [this message]
2008-08-29 23:18 ` [uml-devel] [PATCH 6/6] VM: Annotate vmalloc Steve VanDeBogart

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