From mboxrd@z Thu Jan  1 00:00:00 1970
From: Pasi =?iso-8859-1?Q?K=E4rkk=E4inen?= <pasik@iki.fi>
Subject: Re: problem of build and install blktap2 module
Date: Thu, 7 Jan 2010 14:37:49 +0200
Message-ID: <20100107123749.GS25902@reaktio.net>
References: <001a01ca8f91$a4bf97d0$e538a60a@china.huawei.com>
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To: fanliang <fanliang@huawei.com>
Cc: cqj@huawei.com, xen-devel@lists.xensource.com
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On Thu, Jan 07, 2010 at 08:05:02PM +0800, fanliang wrote:
>    Hi,all:
>    I got warning messages as this :  WARNING: "xen_multi_update_va_mapping"
>    [drivers/xen/blktap2/blktap.ko] undefined!  when I tried to build the
>    blktap2 module. I can see that in linux-2.6.27 lots of changes in file
>    arch/i386/mm/hypervisor.c, but "xen_multi_update_va_mapping " is not used
>    in the blktap2 module. I don't know why this warning appeared. Can any
>    body help me?
>        And if I insert the module blktap.ko that I build out, the system told
>    me "insmod: error inserting 'blktap.ko': -1 Unknown symbol in module
>     " . It made me creazy . Kind if you can give me any suggestion.
>

What kernel exactly are you using?

-- Pasi