linux-kernel - Re: kobj refcounting weirdness

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Message-ID: <20090309165807.GU25995@parisc-linux.org>
Date:	Mon, 9 Mar 2009 10:58:07 -0600
From:	Matthew Wilcox <matthew@....cx>
To:	Alex Chiang <achiang@...com>, Greg KH <greg@...ah.com>,
	kay.sievers@...y.org, rjw@...k.pl, linux-kernel@...r.kernel.org,
	linux-pci@...r.kernel.org
Subject: Re: kobj refcounting weirdness

On Mon, Mar 09, 2009 at 10:50:10AM -0600, Alex Chiang wrote:
> I thought about the allocators returning a pointer to the same
> location that maybe has some valid looking data hanging around,
> but it's not wise for someone like me to go pointing fingers at
> the allocator before I've proven the bug isn't in my code. ;)

Slab poisoning would be the logical next thing to try to decide whether
the allocator is wrong or you're using it wrong ;-)

-- 
Matthew Wilcox				Intel Open Source Technology Centre
"Bill, look, we understand that you're interested in selling us this
operating system, but compare it to ours.  We can't possibly take such
a retrograde step."
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