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Message-ID: <20070206094108.GC18017@amd.com> Date: Tue, 6 Feb 2007 10:41:08 +0100 From: "Joerg Roedel" <joerg.roedel@....com> To: "Pekka Enberg" <penberg@...helsinki.fi> cc: logic@...nknet.ro, linux-kernel@...r.kernel.org Subject: Re: your mail On Mon, Feb 05, 2007 at 04:01:23PM +0200, Pekka Enberg wrote: > Hi Joerg, > > On 2/5/07, Joerg Roedel <joerg.roedel@....com> wrote: > >Hmm, this seems to be the same issue as in [1] and [2]. A page that is > >assumed to belong to the slab but is not longer marked as a slab page. > >Could this be a bug in the memory management? > > The BUG_ON triggers whenever you feed an invalid pointer to kfree() or > kmem_cache_free() so I am guessing the caller is simply broken. Note > that kernels prior to 2.6.18 would quietly corrupt the slab unless > CONFIG_SLAB_DEBUG was enabled which might explain why this hasn't been > noticed before. Ok. I was not aware of that. Thanks for clarification. Joerg -- Joerg Roedel Operating System Research Center AMD Saxony LLC & Co. KG - 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/
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