From mboxrd@z Thu Jan 1 00:00:00 1970 Received: by fg-out-1718.google.com with SMTP id e12so68932fga.4 for ; Thu, 21 Feb 2008 08:25:30 -0800 (PST) Message-ID: <6101e8c40802210825v534f0ce3wf80a18ebd6dee925@mail.gmail.com> Date: Thu, 21 Feb 2008 17:25:29 +0100 From: "Oliver Pinter" Subject: Re: SMP-related kernel memory leak In-Reply-To: <6101e8c40802210821w626bc831uaf4c3f66fb097094@mail.gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline References: <6101e8c40802191018t668faf3avba9beeff34f7f853@mail.gmail.com> <6101e8c40802201342y7e792e70lbd398f84a58a38bd@mail.gmail.com> <6101e8c40802210821w626bc831uaf4c3f66fb097094@mail.gmail.com> Sender: owner-linux-mm@kvack.org Return-Path: To: Bart Van Assche Cc: linux-mm@kvack.org, Christoph Lameter , linux-mm@vger.kernel.org, Peter Zijlstra List-ID: and add plus CC's On 2/21/08, Oliver Pinter wrote: > it is reproductable with SLUB? > /* sorry for the bad english, but i not learned it .. */ > On 2/21/08, Bart Van Assche wrote: > > On Thu, Feb 21, 2008 at 9:48 AM, Bart Van Assche > > wrote: > > > On Wed, Feb 20, 2008 at 10:42 PM, Oliver Pinter > > wrote: > > > > > > > > hmm it is with slub or slab? > > > > > > All tests were performed with SLAB. Please note that it's not yet > > > clear to me whether this is an issue with the SLAB allocator or > > > another memory allocation mechanism. In the meantime I also noticed > > > different behavior between the 2.6.22.18 and 2.6.24.2 kernel: with > > > 2.6.22.18 I see unbounded growth of the memory used, while with > > > 2.6.24.2 memory usage increases from about 30 MB to about 70 MB and > > > then keeps at the same level. I am still performing more tests (a.o. > > > minimizing the kernel config). I will add the results of these tests > > > to the kernel bugzilla entry. > > > > I have added a new graph to > > http://bugzilla.kernel.org/show_bug.cgi?id=9991, namely a graph > > showing memory usage for a PAE-kernel booted with mem=1G and with a > > minimized kernel config. The graph shows that memory usage increases > > to a certain limit. Other tests have shown that this limit is > > proportional to the amount of memory specified in mem=... This is not > > a SLAB leak: as the numbers show, slab usage remains constant during > > all tests. > > > > I'm puzzled by these results ... > > > > Bart. > > -- > > Met vriendelijke groeten, > > > > Bart Van Assche. > > > -- > Thanks, > Oliver > -- Thanks, Oliver -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org