Re: [Xen-devel] Xen with dom0 pvops on ultra-recent "git tip" kernel on x86_64

[Christophe Saout <christophe@xxxxxxxx>]

Hi Pasi,

> > On my notebook (Core 2 Duo, SMP):
> > - 2.6.29-rc1 tip (with a lot of patch fiddling)
> > - dom0 working stable (AFAICT)
> > - CONFIG_EVICATBLE_LRU causes problems in exit_mmap
> > - CONFIG_PREEMPT seems generally broken with Xen
> > - AHCI works on SMP, has IRQ problem on UP
> > - all other hardware works
> > - X server won't come up (problem in "vgahw" init.), no BUG or Oops
>
> Nice work with finding the bugs!

Thanks.

> Does VGA console work for you in the pv_ops dom0 kernel? 

Yes, it does, without any kernel parameters by the way, otherwise I get
serial working but VGA stays blank.

The X server crashes in some I/O port "inb()" command.  Seems like the
io permissions aren't correctly passed through or something. (iopl or
ioperm or so)  I'll try to debug a bit more later.

> If it works for you, could you please post your grub.conf and kernel config?
> What Xen version are you using? 

Since 3.3.0 was working, I just sticked with that for now.
I am actually using extlinux, but that shouldn't really make a
difference:

LABEL linux-2.6.29-rc1-xen-cs1
MENU LABEL Gentoo + XEN-3.3.0 + 2.6.29-rc1-xen-cs1
KERNEL com32/mboot.c32
APPEND xen-3.3.0.gz --- vmlinux-2.6.29-rc1-xen-cs1.gz root=/dev/vg/root ro nopat

for serial console this (which I only tested under qemu):

LABEL linux-2.6.29-rc1-xen-cs1
MENU LABEL Gentoo + XEN-3.3.0 + 2.6.29-rc1-xen-cs1
KERNEL com32/mboot.c32
APPEND xen-3.3.0.gz console=com1,vga com1=9600,8n1 --- 
vmlinux-2.6.29-rc1-xen-cs1.gz earlyprintk=xen console=tty0 console=hvc0 
root=/dev/vg/root ro nopat

Cheers,
        Christophe



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