[Fedora-xen] FW: [Xen-ia64-devel] Add ptc.l emulation for 2.6.17 xenlinux to fixfederon-xen-ia64 boot

[Yang, Fred]

Re-forward to the correct mail list 

-----Original Message-----
From: Zhang, Xiantao 
Sent: Wednesday, May 24, 2006 6:59 AM
Subject: RE: [Xen-ia64-devel] Add ptc.l emulation for 2.6.17 xenlinux to
fixfederon-xen-ia64 boot

	After many times' try, I think the main issue is the initrd
which created for booting FC6 couldn't match with rhel4-u2. Maybe their
module format is different. I think we should set up FC6 environment to
try next step. If so, I think debugging work maybe easier :) 

> >> -----Original Message-----
> >> From: xen-ia64-devel-bounces at lists.xensource.com
> >> [mailto:xen-ia64-devel-bounces at lists.xensource.com] On
> >Behalf Of Zhang,
> >> Xiantao
> >> Sent: Wednesday, May 24, 2006 4:26 AM
> >> To: xen-ia64-devel at lists.xensource.com; fedora-ia64-list at redhat.com
> >> Subject: [Xen-ia64-devel] Add ptc.l emulation for 2.6.17 xenlinux
to
> >> fixfederon-xen-ia64 boot
> >>
> >> This patch adds support for ptc.l emulation. In 2.6.16 kernel
> >> flush_tlb_range will call global_tlb_purge directly, so
> >ptc.l shouldn't
> >> be used when CONFIG_SMP enable.
> >> But in order to enhance performance (maybe), 2.6.17 kernel in smp
> >> environment
> >> will do mm check first. If mm is current->active_mm and the mm
> >> (corresponding process) just runs on the local processor, kernel
only
> >> needs to do ptc.l at local processor instead of global
> >purge. So ptc.l
> >> emulation is necessary for 2.6.17 kernel.
> >>
> >> Hi Aron,
> >> With this patch, federon-xen-ia64 with rhel4-u2 can boot to
> >"switch to
> >> new root". Seems this error is related to FC6 OS, due to
> >lack of FC6 at
> >> hand, we couldn't try to boot it on FC6. Anyway, this patch is a
must
> >> for boot 2.6.17 kernel.
> >> In addition, I attached the boot log, anyone can help to try
> >on FC6 with
> >> this patch?
> >>
> >> Thanks
> >> -Xiantao
> >
> >
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