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Date: Sun, 15 Mar 2009 18:47:13 +0100 From: Vegard Nossum <vegard.nossum@...il.com> To: Tetsuo Handa <penguin-kernel@...ove.sakura.ne.jp> Cc: penberg@...helsinki.fi, linux-kernel@...r.kernel.org Subject: Re: KMEMCHECK: linux-next: kernel BUG at arch/x86/mm/kmemcheck/kmemcheck.c:297! 2009/3/11 Tetsuo Handa <penguin-kernel@...ove.sakura.ne.jp>: > Hello. > > I encountered this. > > [ 0.004000] ------------[ cut here ]------------ > [ 0.004000] kernel BUG at arch/x86/mm/kmemcheck/kmemcheck.c:297! Hi, thanks for this report! I have a feeling that the following patch might fix it. Please try it out only if you have the time. I will also try to reproduce it when I have the time myself. Vegard diff --git a/arch/x86/mm/init.c b/arch/x86/mm/init.c index 6d63e3d..86f7398 100644 --- a/arch/x86/mm/init.c +++ b/arch/x86/mm/init.c @@ -146,7 +146,7 @@ unsigned long __init_refok init_memory_mapping(unsigned long start, if (!after_bootmem) init_gbpages(); -#ifdef CONFIG_DEBUG_PAGEALLOC +#if defined(CONFIG_DEBUG_PAGEALLOC) || defined(CONFIG_KMEMCHECK) /* * For CONFIG_DEBUG_PAGEALLOC, identity mapping will use small pages. * This will simplify cpa(), which otherwise needs to support splitting -- 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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