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Date: Mon, 11 Aug 2008 21:40:15 +0200 From: Ingo Molnar <mingo@...e.hu> To: Andreas Herrmann <andreas.herrmann3@....com> Cc: "H. Peter Anvin" <hpa@...or.com>, Thomas Gleixner <tglx@...utronix.de>, linux-kernel@...r.kernel.org, akpm@...ux-foundation.org Subject: Re: [PATCH 0/2] x86: fix memory leaks when doing CPU hotplug * Andreas Herrmann <andreas.herrmann3@....com> wrote: > Following patches fix two memory leaks with CPU hotplug. Some per CPU > data is allocated each time a CPU is set online. But this space is > never freed. > > Usually this memory leak is not a big deal (for normal CPU hotplug > usage). But during stress tests with lots of CPU offline/online cycles > this really matters. > > The entire leak is 40K (10 pages) for each offline/online cycle per > CPU. I've verified both fixes performing more than 90000 CPU > offline/online cycles. applied to tip/x86/core, thanks Andreas. > This is not a regression but I think it's still 2.6.27 material. > Please apply. it's tricky code so i guess it's best to let it cook in tip/master a bit. If it does not show up upstream by say -rc4 time could you please ping us about it? Ingo -- 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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