Re: xenbackendd error

[Bruno Gruel <b.gruel%sdnet.info@localhost>]

On Thu, 27 Oct 2011 21:41:58 +0200, Manuel Bouyer wrote:
> On Thu, Oct 27, 2011 at 10:42:14AM +0200, Bruno Gruel wrote:
> > Re,
> >
> > I ha ve some new error message :
> >
> > At te third xm shutdown i have this :
> > xenbus: can't get state for backend/vbd/3/51712
>
> probably harmless
>
> > but the server don't reboot.
> >
> > After create the Fourth VM the server crash..
> >
> > I add this to my rc.conf
> >
> > savecore=YES
> > savecore_flags="-N /netbsd-XEN3_DOM0 -z"
> > savecore_dir="/var/crash"
> >
> > And pass ddb.onpanic?=0 to 1 in sysctl.conf file
> >
> > During the server boot i got this :
> > Oct 27 12:14:27  savecore: can't find device 3855/594455
>
> strange. What do you have in fstab, and how big is your swap 
> partition ?
>
> > And after the crash i don't have any core dump on /var/crash. But i
> > got some  kernel dump on sreen during the crash , but time is too
> > short before the reboot.
>
> It didn't drop to ddb ? strange, or maybe it's not the dom0 kernel
> which crashing but the hypervisor ...
>
> If you run
> sysctl ddb.onpanic
> what does it print ?

First thank's to take some time to follow my problem.

I have 2Go of swap

The content off my fstab file (it's a test env)

# NetBSD /etc/fstab
# See /usr/share/examples/fstab/ for more examples.
/dev/wd0a               /       ffs     rw               1 1
/dev/wd0b               none    swap    sw,dp            0 0
/dev/wd0e               /usr    ffs     rw               1 2
/dev/wd0f               /var    ffs     rw               1 2
/dev/wd0g               /home   ffs     rw               1 2
/dev/wd0h               /VM     ffs     rw               1 2
/dev/wd0b               /tmp    mfs     rw,-s=2048256
kernfs          /kern   kernfs  rw
ptyfs           /dev/pts        ptyfs   rw
procfs          /proc   procfs  rw
/dev/cd0a               /cdrom  cd9660  ro,noauto

The sysctl ddb.onpanic return 1
# sysctl ddb.onpanic
ddb.onpanic = 1

Heu.. sorry to ask this question but are you french ?? it's a french ML 
?

Thank's.

Bruno.
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