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Re: panic on xen guest shutdown
> On Thu, Dec 16, 2010 at 05:29:00PM +0100, Christoph Egger wrote:
> >
> > > > > > Hi!
> > > > > >
> > > > > > When I start a xen guest I get this message:
> > > > > >
> > > > > > xbdback backend/vbd/1/832: can't VOP_OPEN device 0xe13: 16
> > > > >
> > > > > 16 is EBUSY. is it a HVM guest, or a PV guest ?
> > > >
> > > > HVM guest
> > >
> > > So it looks like qemu has the device already open, which prevents the
> > > backend to opening it as well. In my case, qemu-dm has the file open,
> > > not the vnd device.
> > > how did you specify the virtual disk(s) in your config file ?
> >
> > disk = [ 'file:/images/netbsd_64b.img,hda,w',
> 'file:/images/netbsd_64b-disk2.img,hdb,w' ]
>
> Don't you miss the ioemu flag here ?
It's optional since Xen 3.4.
> Can you check what ioemu is opening (fstat should help with this) ?
>
root qemu-dm 824 wd / 4789638 drwxr-xr-x 4096 r
root qemu-dm 824 0 / 4789656 crw-rw-rw- null r
root qemu-dm 824 1 / 13191995 -rw-r--r-- 2214 w
root qemu-dm 824 2 / 13191995 -rw-r--r-- 2214 w
root qemu-dm 824 3* pipe 0xffffa000261a8640 <- 0xffffa000261a9000 rn
root qemu-dm 824 4* pipe 0xffffa000261a9000 -> 0xffffa000261a8640 wn
root qemu-dm 824 5* tap 0
root qemu-dm 824 6 - - ?(b) -
root qemu-dm 824 7* unix stream ffffa00001340c80 <->
ffffa00001340f00
root qemu-dm 824 8* pipe 0xffffa000261a8140 <- 0xffffa000261a9500 rn
root qemu-dm 824 9* pipe 0xffffa000261a9500 -> 0xffffa000261a8140 wn
root qemu-dm 824 10 / 10787931 -rw-r--r-- 1048576000 rw
root qemu-dm 824 11 / 1154349 -rw-r--r-- 104857600000 rw
root qemu-dm 824 12* unix stream ffffa00001340880 <->
ffffa000012f8280
root qemu-dm 824 13 /dev/pts 6 crw-rw-rw- ptyp1 rw
root qemu-dm 824 14* pipe 0xffffa000261a8280 <- 0xffffa000261a9140 r
root qemu-dm 824 15* pipe 0xffffa000261a9140 -> 0xffffa000261a8280 w
root qemu-dm 824 16 - - ?(b) -
root qemu-dm 824 5* misc 0xffffa00001397000
root qemu-dm 824 18* internet stream tcp ffffa0000121c000 *:5900
root qemu-dm 824 19* pipe 0xffffa000261a83c0 <- 0xffffa000261a9280 r
root qemu-dm 824 20* pipe 0xffffa000261a9280 -> 0xffffa000261a83c0 w
root qemu-dm 824 25 / 18256750 prw------- 0 rw
FD 10 and 11 are the disk images.
Christoph
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