Re: Re: xen 4.1.1 with current linus tree as dom0 [ 0.000000] BUG: unable to handle kernel NULL pointer dereference at (null) [ 0.000000] IP: [<ffffffff810074d4>] xen_set_pte+0x24/0xe0

[Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>]

On Wed, Aug 03, 2011 at 05:05:24PM +0200, Sander Eikelenboom wrote:
> Hi Konrad,
> 
> Thx, after applying those patches it boots as dom0 and xen-pciback seems to work as well from my first tests.

Could you reply to that email thread with 'Tested-by: ' if it is not too much trouble?

> The compile problems reported in my earlier mail are still present (related to tracing and i think jeremy's patches).
> 
> Something that catched my eye when doing a make menuconfig:
>           <*>   Xen virtual block device support
>           <*>   Block-device backend driver
> 
> I think the backend description should also start with "Xen" as all xen specific drivers do ?

I've gotten this patch queued up (if you think of a better name or if you think
the description could use some re-wording - please do provide some ideas):

commit 4beb84ffeacbf8df21b41ca8c05d099e19c579a3
Author: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Date:   Wed Aug 3 11:12:17 2011 -0400

    xen/blkback: Make description more obvious.
    
    With the frontend having Xen but the backend not, it just looks odd:
    
      <*>   Xen virtual block device support
      <*>   Block-device backend driver
    
    Fix it to have the 'Xen' in front of it.
    
    Reported-by: Sander Eikelenboom <linux@eikelenboom.it>
    Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>

diff --git a/drivers/block/Kconfig b/drivers/block/Kconfig
index 717d6e4..a89ebf1 100644
--- a/drivers/block/Kconfig
+++ b/drivers/block/Kconfig
@@ -471,7 +471,7 @@ config XEN_BLKDEV_FRONTEND
 	  in another domain which drives the actual block device.
 
 config XEN_BLKDEV_BACKEND
-	tristate "Block-device backend driver"
+	tristate "Xen block-device backend driver"
 	depends on XEN_BACKEND
 	help
 	  The block-device backend driver allows the kernel to export its