Re: pv_ops dom0 testing

[Jeremy Fitzhardinge <jeremy@goop.org>]

Todd Deshane wrote:
> On Sat, Nov 29, 2008 at 5:32 PM, Aviv Grafi <aviv@neocleus.com> wrote:
>   
>> I solved this one by adding "console=hvc0 earlyprintk=xen" to the dom0
>> kernel boot line (thanks to Jeremy Fitzhardinge [jeremy@goop.org]).
>>     
>
> Thanks again Aviv. I am really close now. The screen still shows nothing,
> but the debug output has the dom0 kernel boot.
> (Not sure why that would be... any thoughts?)
>
> In the debug output however I successfully get to the the
> (initramfs) prompt.
>
> Full output attached, but some interesting parts inline:
>
> (initramfs)cat /proc/cmdline
> root=/dev/sda1 ro console=tty0 xencons=ttyS0,115200 console=hvc0 earlyprintk=xen
>
> (initramfs) cat /proc/modules
> ata_piix 33586 1 - Loading 0xffffffffa0127000
> libata 196576 1 ata_piix, Live 0xffffffffa00f5000
> scsi_mod 184792 1 libata, Live 0xffffffffa00c5000
> r8169 46084 0 - Live 0xffffffffa00b7000
> mii 14464 1 r8169, Live 0xffffffffa00b1000
> tg3 139396 0 - Live 0xffffffffa008c000
> libphy 32896 1 tg3, Live 0xffffffffa007e000
> ehci_hcd 46726 1 - Loading 0xffffffffa0070000
> uhci_hcd 34037 1 - Loading 0xffffffffa0062000
> usbcore 174512 3 ehci_hcd,uhci_hcd, Live 0xffffffffa0035000
> thermal 27552 0 - Live 0xffffffffa002c000
> processor 55224 1 thermal, Live 0xffffffffa0019000
> fan 13832 0 - Live 0xffffffffa0013000
> fuse 65728 1 - Live 0xffffffffa0000000
>
> a listing of /dev doesn't show any sd* devices.
>   

What's your scsi host controller?

USB is known to have problems, so I generally disable it for now, until 
I've worked out what's failing.  You have an oops in your trace which 
could be leaving other things in a bad state.

> So I am guessing I am running into a driver issue at this
> point. I will dig around more and compare my working
> vanilla linux config with the dom0 kernel to see if there
> is something missing in my dom0 kernel.
>   

Yes, that would be interesting to compare.

> Thanks for the help so far and if anything comes to mind
> why I don't see console output on the screen (and only in
> the debug output) that would be helpful to me.
>
> I'll report back on progress.
>
> If there are any obvious known workarounds, problems, bugs etc.
> let me know. I know that the pv_ops dom0 kernel is very much in
> development, but I am willing to try to work through that.
>   

Thanks for playing with this.

    J