[Pkg-xen-devel] Graphics driver fixes for squeeze kernel-xen ?

[Ian Campbell]

On Wed, 2010-08-25 at 13:07 +0100, Ben Hutchings wrote:
> On Wed, 2010-08-25 at 09:54 +0100, Ian Campbell wrote:
> > On Wed, 2010-08-25 at 07:11 +0100, Ian Campbell wrote:
> > > On Wed, 2010-08-25 at 01:13 +0100, Ben Hutchings wrote:
> > > > I have had to revert the addition of pvhvm because it causes
> > > > an instant panic under KVM (at least in a 64-bit kernel).
> > > 
> > > Ouch, I didn't think to try that combo!
> > > 
> > > I don't suppose you managed to catch the stack anywhere? I'll try and
> > > repro today.
> > 
> > So the fix is pretty simple (and the omission pretty embarrassing) but I
> > guess you'd prefer me to wait until after 2.6.32-21 before I update the
> > patches?
> [...]
> 
> I'm not going to restart the build now, but we can reenable them in -22.

Sure.

> Relatedly, why did you set CONFIG_XEN_PLATFORM_PCI=y and not =m?  It's
> generally preferable to enable features as modules where possible so
> they don't waste memory for users that don't need them.

I did set it =m at first but there is no explicit dependency between
e.g. net-blkfront and the platform-pci driver so things like mkinitramfs
would not pick it up automatically without modifications to the
userspace stuff.

The module is ~1.7k so I figured building it in was a worthwhile
trade-off in this case. (actually, I think this size includes init text
+data etc, looking at objdump -h the final size looks to be .text 0xc0
+ .data 0xe0 + .bss 0x20 + .rodata 0x168 = ~0.8k total)

Ian.
-- 
Ian Campbell

  Talking about a piece of movie dialogue: Let's have some new
  cliches. -Samuel Goldwyn