From mboxrd@z Thu Jan  1 00:00:00 1970
From: Jeremy Fitzhardinge <jeremy@goop.org>
Subject: Re: [PATCH] [PVOPS] fix gntdev on PAE
Date: Tue, 09 Feb 2010 13:57:39 -0800
Message-ID: <4B71DA53.1080404@goop.org>
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To: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
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On 02/01/2010 07:46 AM, Stefano Stabellini wrote:
> On Mon, 1 Feb 2010, Stefano Stabellini wrote:
>    
>> Hi all,
>> this small patch fixes gntdev on Linux pvops kernels:
>> gnttab_set_map_op and gnttab_set_unmap_op shouldn't take unsigned long
>> as parameters for machine addresses because they are not big enough on
>> PAE systems.
>> This patch fixes the issue using phys_addr_t instead and enables
>> XEN_GNTDEV compilation again.
>>
>>
>> Signed-off-by: Stefano Stabellini<stefano.stabellini@eu.citrix.com>
>>
>>      
> BTW gntdev is used by qemu to provide the console backend to pv guests.
>    

Is that recent?  Console had been working before hadn't it?

The gntdev problems I saw were more locking related than anything to do 
with PAE.  Did you try testing with lock debugging enabled?

Thanks,
     J