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Re: [Xen-users] I/O request not ready when VNC enabled
- To: daniel@xxxxxxxxxxxxxxx
- From: Molly Bloom <psalviato@xxxxxxxxx>
- Date: Thu, 9 Apr 2009 14:26:56 +0200
- Cc: xen-users@xxxxxxxxxxxxxxxxxxx
- Delivery-date: Thu, 09 Apr 2009 05:27:44 -0700
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Hello Daniel,
I have more or less the same problem, even if I'm running a scientific linux (derived from red hat) on both the dom0 and the domU, and the domU runs on a logical volume. I haven't found the way to fix this problem yet...
--paola
2009/4/9 <daniel@xxxxxxxxxxxxxxx>
I have a headless CentOS 5.3 box running Xen 3.3.1. The DomU (domcont) is
running off a DRBD device and the network bridge (br0) is running over a
bonded ethernet link. All network interfaces are running fine and the DRBD
devices replicate over their respective links. The DRBD device that I am
trying to boot off is /dev/drbd1 and is set to Primary on the Dom0 that is
running this DomU.
The current configuration file for the DomU is as follows:
kernel = "/usr/lib/xen/boot/hvmloader"
builder = 'hvm'
memory = '4096'
name = "domcont"
vcpus = 3
vif = [ 'bridge=br0' ]
disk = [ 'phy:/dev/drbd1,hda,w'
,'file:/mnt/images/2003Srvx64CD1.iso,hdc:cdrom,r']
device_model='/usr/lib64/xen/bin/qemu-dm'
cdrom='/dev/hdc'
ne2000=0
boot='c'
sdl=0
vnc=1
vncviewer=0
stdvga=0
The DomU can boot if vnc=0 in the DomUs configuration file but as soon as
I enable VNC it crashes with the following error in the qemu-dm log:
domid: 3
qemu: the number of cpus is 3
config qemu network with xen bridge for tap3.0 br0
Watching /local/domain/0/device-model/3/logdirty/next-active
Watching /local/domain/0/device-model/3/command
qemu_map_cache_init nr_buckets = 10000 size 3145728
shared page at pfn efffe
buffered io page at pfn efffc
Time offset set 0
Register xen platform.
Done register platform.
medium change watch on `hdc' (index: 1): /mnt/images/2003SrvCD1.iso I/O
request not ready: 0, ptr: 0, port: 0, data: 0, count: 0, size: 0 I/O
request not ready: 0, ptr: 0, port: 0, data: 0, count: 0, size: 0 I/O
request not ready: 0, ptr: 0, port: 0, data: 0, count: 0, size: 0
When I run 'xm create domcont' as root with vnc=1 in the configuration
file the DomU immediately crashes and does not show when I run 'xm list'.
Thanks for your help in advance.
Regards,
Daniel Davis
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