Booting Solaris 11.3 (was Re: Booting r298488 as Xen Dom0 may break ZFS pool?)

[Roger Pau Monné]

On Sat, Apr 30, 2016 at 08:56:54PM +0000, Marcin Cieslak wrote:
> On Fri, 29 Apr 2016, Roger Pau Monné wrote:
> 
> > On Thu, Apr 28, 2016 at 08:01:23PM +0000, Marcin Cieslak wrote:
> > > On Tue, 26 Apr 2016, Roger Pau Monné wrote:
> > > 
> > > > On Tue, Apr 26, 2016 at 10:39:06AM +0000, Marcin Cieslak wrote:
> > > > > By the way, I just managed to crash a whole machine by trying to
> > > > > boot Solaris 11.3:
> > > > > 
> > > > > # builder = "hvm"
> > > > > memory = 2048
> > > > > vcpus = 1
> > > > > name = "Solaris0"
> > > > > disk = [ 'file:/root/sol-11_3-text-x86.iso,6:cdrom,r', '/dev/zvol/zroot/solaris0,raw,hda,w' ]
> > > > > kernel = "/root/xen/solaris/unix"
> > > > > ramdisk = "/root/xen/solaris/boot_archive"
> > > > > extra = "/platform/i86xpv/kernel/amd64/unix -B console=ttya,livemode=text"
> > > > > #boot = "c"
> > > > > usbdevice = 'tablet'
> > > > > vnc = 1
> > > > > vnclisten = '0.0.0.0'
> > > > > vif = [ 'bridge=bridge0' ]
> > > > > 
> > > > > /root/xen/solaris/unix and /root/xen/solaris/boot_archive where extracted from sol-11_3-text-x86.iso
> > > > > ("Intel text-only image").
> > > > 
> > > > I don't think you can boot Solaris as a PV guest anymore, you should instead 
> > > > boot it as a HVM guest. You will have to remove the kernel and ramdisk 
> > > > options and instead add builder="hvm" (that you have left commented out).
> > > 
> > > However supported or not, I think it should not crash a whole host system?...
> > 
> > Certainly. I assumed that you meant it crashed the VM, not the whole host. 
> > Can you please provide the trace of the crash?
> 
> Apologies, forgot to let Xen keep VGA:
> 
> http://marcincieslak.com/tmp/xencrash.png
> 
> Manual OCR:
> 
> FreeBSD/amd64 (o.saper.info) (xc0)
> 
> login: (XEN) vmx.c:2464:d0v0 EPT violation 0x182 (-w-/---), gpa 0x0000010178f000

Hello,

I've been able to debug this and found the issue. I have two patches that 
should be applied to FreeBSD in order to fix it, they can be found at:

https://people.freebsd.org/~royger/privcmd_fixes/

Could you please give them a try?

I have however been unable to boot a Solaris 11.3 guest under PV mode, but 
at least the host is not crashing anymore :).

Roger.