From: Andi Kleen <andi@firstfloor.org>
To: Haicheng Li <haicheng.li@linux.intel.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>, Ingo Molnar <mingo@redhat.com>,
Thomas Gleixner <tglx@linutronix.de>,
"akpm@linux-foundation.org" <akpm@linux-foundation.org>,
"ak@linux.intel.com" <ak@linux.intel.com>,
Wu Fengguang <fengguang.wu@intel.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"linux-mm@kvack.org" <linux-mm@kvack.org>
Subject: Re: [BUGFIX][PATCH 1/2] x86, mem: separate x86_64 vmalloc_sync_all() into separate functions
Date: Wed, 25 Aug 2010 09:45:13 +0200 [thread overview]
Message-ID: <87r5hni19y.fsf@basil.nowhere.org> (raw)
In-Reply-To: <4C6E4ECD.1090607@linux.intel.com> (Haicheng Li's message of "Fri, 20 Aug 2010 17:45:49 +0800")
Haicheng Li <haicheng.li@linux.intel.com> writes:
> hello,
>
> Resend these two patches for bug fixing:
>
> The bug is that when memory hotplug-adding happens for a large enough area that a new PGD entry is
> needed for the direct mapping, the PGDs of other processes would not get updated. This leads to some
> CPUs oopsing when they have to access the unmapped areas, e.g. onlining CPUs on the new added node.
The patches look good to me. Can we please move forward with this?
Reviewed-by: Andi Kleen <ak@linux.intel.com>
-Andi
--
ak@linux.intel.com -- Speaking for myself only.
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next prev parent reply other threads:[~2010-08-25 7:45 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-08-20 9:45 Haicheng Li
2010-08-20 9:50 ` [BUGFIX][PATCH 2/2] x86, mem: update all PGDs for direct mapping and vmemmap mapping changes on 64bit Haicheng Li
2010-08-25 7:45 ` Andi Kleen [this message]
2010-08-25 19:14 ` [BUGFIX][PATCH 1/2] x86, mem: separate x86_64 vmalloc_sync_all() into separate functions H. Peter Anvin
2010-08-25 21:36 ` H. Peter Anvin
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