Re: NetBSD host rebooting automatically.

[Roger Pau Monné <roger.pau%citrix.com@localhost>]

On 03/09/13 17:48, Adiel de Lima Ribeiro wrote:
> Hi everyone again.
> I have NetBSD host 6.1 Stable amd64 with xenkernel42-4.2.2 and
> xentools42-4.2.2nb3, I'm working with the Xen xl toolstack. 
> The relevant parts in my xend-config.sxp are these:
> 
> (dom0-min-mem 196)
> (enable-dom0-ballooning no)
> (dom0-cpus 1)
> (enable-dump no)
> (xend-domains-path /xen/config)
> (device-create-timeout 30)
> (device-destroy-timeout 30)
> #(pci-passthrough-strict-check yes)

This is only relevant if you are using the xm toolstack, xl completely
ignores this file, take a look at xl.conf instead
(http://xenbits.xen.org/docs/unstable/man/xl.conf.5.html)

> 
> I have FreeBSD 9.2 Prerelease i386 guests, the config file is bellow:
> 
> builder='hvm'
> name="source"
> memory=200
> on_poweroff="destroy"
> disk = [ '/xen/domains/source/source.img,file:hda,w' ]
> vif = [ 'bridge=bridge0, type=vif' ]
> vnc=0
> boot='c'
> usb=0
> nographic=1
> 
> Everything works fine, except because that my NetBSD host reboots from
> about 5 and 5 days automatically. 
> The relevant part of qemu-dm-source.log is bellow:
> 
> xen be core: xen be core: can't open gnttab device
> can't open gnttab device
> Log-dirty: no command yet.
> I/O request not ready: 0, ptr: 0, port: 0, data: 0, count: 0, size: 0
> vcpu-set: watch node error.
> xs_read(/local/domain/6/log-throttling): read error
> qemu: ignoring not-understood drive `/local/domain/6/log-throttling'
> medium change watch on `/local/domain/6/log-throttling' - unknown
> device, ignored

You should attach a serial console to the host, so you can capture the
messages when the system reboots, without that it is impossible to know
what's going on.