Re: [Xen-devel] Reverting 26399:b0e618cb0233 (multiple frame buffers in Xen)

[Robert Phillips <robert.phillips@xxxxxxxxxx>]

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@xxxxxxx]
> Sent: Thursday, January 17, 2013 11:00 AM
> To: Robert Phillips
> Cc: xen-devel@xxxxxxxxxxxxx
> 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.

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