linux-kernel - Re: 3.6rc6 slab corruption.

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Message-ID: <CA+55aFx4Bni8Wn_LMJZD1rkmuW0onUzjKJX1k72kf6SSp8wAjw@mail.gmail.com>
Date:	Tue, 18 Sep 2012 13:36:35 -0700
From:	Linus Torvalds <torvalds@...ux-foundation.org>
To:	David Rientjes <rientjes@...gle.com>
Cc:	Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>,
	Dave Jones <davej@...hat.com>,
	Linux Kernel <linux-kernel@...r.kernel.org>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Srivatsa Vaddagiri <vatsa@...ux.vnet.ibm.com>,
	Suzuki Poulose <suzuki@...ibm.com>,
	Raghavendra K T <raghavendra.kt@...ux.vnet.ibm.com>
Subject: Re: 3.6rc6 slab corruption.

On Tue, Sep 18, 2012 at 1:24 PM, David Rientjes <rientjes@...gle.com> wrote:
> On Tue, 18 Sep 2012, Konrad Rzeszutek Wilk wrote:
>
>>       u32 elements;
>> +     struct mutex lock;
>
> This should be a spinlock.

I don't think it can be a spinlock since it needs to protect the
user-space accesses (which Konrad admittedly didn't do, but that's
just a bug)

            Linus
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