Re: [BUGFIX][PATCH 1/2] x86, mem: separate x86_64 vmalloc_sync_all()into separate functions

From: H. Peter Anvin
Date: Wed Aug 25 2010 - 15:18:01 EST


On 08/25/2010 12:45 AM, Andi Kleen wrote:
> Haicheng Li <haicheng.li@xxxxxxxxxxxxxxx> 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@xxxxxxxxxxxxxxx>
>

The patches are mangled so they don't apply even with patch -l --
Haicheng, could you send me another copy, as an attachment if necessary?

-hpa
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