Xen devel - Jan 2013 - Reverting 26399:b0e618cb0233 (multiple frame buffers in Xen)

Hi Robert,

Although this passed my smoke tests this morning, I''m now seeing screen
corruption (missing updates) on a VNC connection to a 32-bit WinXP
guest (with HAP enabled, on an Intel machine).  Reverting this cset has
fixed the problem.

My config file looks like this:

name = "winxp"
builder = "hvm"
memory = 4096
vcpus = 2
hap = 0
vif = [ ''type=ioemu, bridge=xenbr0'' ]
disk = [ ''phy:/dev/loop0,hda,w'',
''file:/root/winxpsp3.iso,hdc:cdrom,r'' ]
usb = 1
usbdevice = "tablet"

and I''m connecting with a VNC client on a remote machine, to
qemu''s VMC
server.

Also, the guest seems to be running slower than usual, though that
might of course be unrelated. 

Tim.

Tim,

I just submitting a version of the patch that, I believe, fixes the bugs you
encountered.
As you surmised, I found them in my recent changes, changes that switched the
code to use [un]map_domain_page().

-- rsp
> -----Original Message-----
> From: Tim Deegan [mailto:tim@xen.org]
> Sent: Thursday, January 17, 2013 11:00 AM
> To: Robert Phillips
> Cc: xen-devel@lists.xen.org
> Subject: Reverting 26399:b0e618cb0233 (multiple frame buffers in Xen)
> 
> Hi Robert,
> 
> Although this passed my smoke tests this morning, I''m now seeing
screen
> corruption (missing updates) on a VNC connection to a 32-bit WinXP
> guest (with HAP enabled, on an Intel machine).  Reverting this cset has
> fixed the problem.
> 
> My config file looks like this:
> 
> name = "winxp"
> builder = "hvm"
> memory = 4096
> vcpus = 2
> hap = 0
> vif = [ ''type=ioemu, bridge=xenbr0'' ]
> disk = [ ''phy:/dev/loop0,hda,w'',
''file:/root/winxpsp3.iso,hdc:cdrom,r'' ]
> usb = 1
> usbdevice = "tablet"
> 
> and I''m connecting with a VNC client on a remote machine, to
qemu''s VMC
> server.
> 
> Also, the guest seems to be running slower than usual, though that
> might of course be unrelated.
> 
> Tim.