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Re: [Xen-devel] Announcing xen/master: pvops git trees rearranged

To: Pasi Kärkkäinen <pasik@xxxxxx>
Subject: Re: [Xen-devel] Announcing xen/master: pvops git trees rearranged
From: "Marc - A. Dahlhaus [ Administration | Westermann GmbH ]" <mad@xxxxxx>
Date: Mon, 21 Sep 2009 10:49:03 +0200
Cc: Jeremy Fitzhardinge <jeremy@xxxxxxxx>, Xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx>
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Am Montag, den 21.09.2009, 09:22 +0300 schrieb Pasi Kärkkäinen:
> On Sun, Sep 20, 2009 at 09:29:46PM +0200, Marc - A. Dahlhaus wrote:
> > Marc - A. Dahlhaus schrieb:
> > >Hello Jeremy,
> > >
> > >Jeremy Fitzhardinge schrieb:
> > >>Well, my current pvops/dom0 tree is finally (reasonably) stable.  There
> > >>was a fairly nasty bug which ended up corrupting dom0 memory when doing
> > >>IO on behalf of domains, but that is finally fixed.
> > >>
> > >>In honour of this, I've renamed the rebase/* branches to xen/* (moving
> > >>the old remaining xen/* branches to xen-old/*); xen/master is now the
> > >>preferred branch for fetching current dom0 work.
> > >>
> > --8<--
> > >>See http://wiki.xensource.com/xenwiki/XenParavirtOps for general
> > >>directions on configuration, compilation and use.
> > >
> > >I think it would be a good idea to add some backtrace and debug related 
> > >options to the CONFIG_ options listed on the wiki page so that one gets 
> > >all the details needed from the testers when some bug shows up (CCd 
> > >Pasi). The NETXEN_NIC option looks unrelated to xen...
> > 
> > Somehow my mail gateway got problems with umlauts and rewrote 
> > mailadress, so this is another try to CC pasi...
> >
> Heh. It's kinda funny to have all these charset/umlaut problems still in 2009 
> :)

Stange problem as we don't had such problems with other mail addresses
that used umlauts in headers, we're working on reproducing it. Looks
like a Perl-Module related problem in the spam filter as far as we got
until now...

> > >>This is definitely a work-in-progress kernel.  I'd appreciate all bug
> > >>*and* success reports so I can get some idea of how many people are
> > >>using this thing, and how often there are problems.  Patches gratefully
> > >>accepted.
> > >
> > >Will report something back soon,
> > 
> > Had no luck. It crashed during irq initialization. Somehow the serial 
> > logs aren't fully transmitted. All i could catch is attached. Also is 
> > attached the .config used to build the dom0 kernel. Will give xen 3.4.1 
> > and unstable another try tomorrow.
> > 
> Please paste your grub.conf. I'm going to try xen/master tree today..
> -- Pasi

title XEN pv_ops dom0
root (hd0,1)
kernel /boot/xen.gz dom0_mem=512M loglvl=all guest_loglvl=all
module /boot/bzImage-2.6.31-xen ro root=LABEL=ROOT earlyprintk=xen 4
module /boot/initramfs-2.6.31-xen

With this one i get no output from the kernel itself at all, i think i
have some things build as modules in my .config that needs to be buildin
for a working vga console (might be that i need to change the
earlyprintk param to vga) but didn't had the time to hunt the problem

title XEN pv_ops dom0 with serial console
root (hd0,1)
kernel /boot/xen.gz dom0_mem=512M loglvl=all guest_loglvl=all
com1=9600,8n1 console=com1
module /boot/bzImage-2.6.31-xen ro root=LABEL=ROOT console=ttyS0,9600n8
earlyprintk=xen 4
module /boot/initramfs-2.6.31-xen

That's the one i used to grab the log.

This is a i945 based box with an Core 2 Duo E8400 and 4GB Ram installed
but only 2912584k usable because of an PCI-Card that supports only 32bit
addressing (appropriated-ram-crap). Could this be a problem? I try to
test again with 2GB Ram installed this evening and report if it gets any


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