Re: NetBSD DomU (PV) hangs on Xen 4.13.1 / NetBSD 9.1

[Manuel Bouyer <bouyer%antioche.eu.org@localhost>]

On Tue, Dec 22, 2020 at 03:37:39PM +0100, Matthias Petermann wrote:
> Hi Brad,
> 
> Am 22.12.2020 um 13:36 schrieb Brad Spencer:
> > I have always had to use the block device when presenting devices to any
> > sort of PV type guest.  Try /dev/zvol/dsk/...  When I attempted to use
> > character devices I think I had the same problem that you have.
> 
> Thanks for the hint! With this using the block device instead of the raw
> device:
> 
> name = "builder91"
> type="pv"
> kernel = "/netbsd-XEN3_DOMU.gz"
> memory = 16384
> vcpus = 8
> vif = [ 'mac=00:16:3E:74:32:42,bridge=bridge0' ]
> disk = [
>    'phy:/dev/zvol/dsk/tank0/volumes/builder91,hda,rw',
> ]
> 
> The kernel seems to go further, but then panic into the debugger. Although
> it is not deterministic. I had it panic at different stages...one time it
> already arrived the rc.d scripts starting sshd and postfix (and then panic).
> So this is only one example:

Please test with a virtual disk backed by something else than a zvol ...

-- 
Manuel Bouyer <bouyer%antioche.eu.org@localhost>
     NetBSD: 26 ans d'experience feront toujours la difference
--