Pkg xen devel - Aug 2011 - Bug#636594: xen: VM restarting too fast. Refusing to restart to avoid loops.

Package: xen-hypervisor-4.1-amd64
Version: 4.1.1-1
Severity: normal
File: xen
Tags: sid

I can't start new domain. xend logs writes

[2011-08-04 14:24:29 1905] INFO (XendDomainInfo:169) Recreating domain 18394,
UUID 879e3aba-7d21-4767-80e9-851c562ee8e6. at /local/domain/18394
[2011-08-04 14:24:29 1905] INFO (XendDomainInfo:2078) Domain has shutdown:
name=windows_2008 id=18394 reason=reboot.
[2011-08-04 14:24:29 1905] ERROR (XendDomainInfo:2195) VM windows_2008
restarting too fast (Elapsed time: 0.297588 seconds). Refusing to restart to
avoid loops.

Domain config is 

arch='i686'
kernel = "/usr/lib/xen-default/boot/hvmloader"
builder='hvm'
memory = 768
shadow_memory = 10
name = "windows_2008"
pae=1
acpi=1
apic=1
vif = [ 'type=ioemu, bridge=eth2' ]
disk = [ 'file:/mnt/virtual/win_2008/win_2008.img,hda,w'
,'file:/mnt/virtual/win_2008/win_2008.iso,hdc:cdrom,r' ]
device_model = '/usr/lib/xen-4.1/bin/qemu-dm'
boot="d"
sdl=0
vnc=1
vncunused=1
vnclisten="0.0.0.0"
vncconsole=1
stdvga=1
serial='pty'
usbdevice='tablet'
on_poweroff = 'destroy'
on_reboot   = 'restart'
on_crash    = 'restart'

qemu-dm log is 

domid: 18294
Strip off blktap sub-type prefix to /mnt/virtual/win_2008/win_2008.img (drv
'aio')
Using file /mnt/virtual/win_2008/win_2008.img in read-write mode
Strip off blktap sub-type prefix to /mnt/virtual/win_2008/win_2008.iso (drv
'aio')
Using file /mnt/virtual/win_2008/win_2008.iso in read-only mode
Watching /local/domain/0/device-model/18294/logdirty/cmd
Watching /local/domain/0/device-model/18294/command
Watching /local/domain/18294/cpu
char device redirected to /dev/pts/5
qemu_map_cache_init nr_buckets = 10000 size 4194304
shared page at pfn feffd
buffered io page at pfn feffb
Guest uuid = fbd53dd4-0ee0-445d-a798-d47cec227d14
xen be core: xen be core: can't open gnttab device
can't open gnttab device
xen be core: xen be core: can't open gnttab device
can't open gnttab device
xen be core: xen be core: can't open gnttab device
can't open gnttab device
populating video RAM at ff000000
mapping video RAM from ff000000
Register xen platform.
Done register platform.
platform_fixed_ioport: changed ro/rw state of ROM memory area. now is rw state.
xs_read(/local/domain/0/device-model/18294/xen_extended_power_mgmt): read error
xs_read(): vncpasswd get error.
/vm/fbd53dd4-0ee0-445d-a798-d47cec227d14/vncpasswd.
medium change watch on `hdc' (index: 1):
aio:/mnt/virtual/win_2008/win_2008.iso
I/O request not ready: 0, ptr: 0, port: 0, data: 0, count: 0, size: 0
Log-dirty: no command yet.
vcpu-set: watch node error.
xs_read(/local/domain/18294/log-throttling): read error
qemu: ignoring not-understood drive `/local/domain/18294/log-throttling'
medium change watch on `/local/domain/18294/log-throttling' - unknown
device, ignored

By the way 

$ aptitude search ~ixen
i A libxenstore3.0                                                    - Xenstore
communications library for Xen
i   xen-docs-4.1                                                      -
Documentation for Xen
i   xen-hypervisor-4.1-amd64                                          - Xen
Hypervisor on AMD64
i   xen-linux-system-3.0.0-1-amd64                                    - Xen
system with Linux 3.0.0 on 64-bit PCs (meta-package)
i   xen-tools                                                         - Tools to
manage Xen virtual servers
i   xen-utils-4.1                                                     - XEN
administrative tools
i A xen-utils-common                                                  - XEN
administrative tools - common files
i A xenstore-utils                                                    - Xenstore
utilities for Xen
$ uname -a
Linux host 3.0.0-1-amd64 #1 SMP Sun Jul 24 02:24:44 UTC 2011 x86_64 GNU/Linux
$ cat /etc/issue
Debian GNU/Linux wheezy/sid

I haven't found any information about this issue in the internet.

-- System Information:
Debian Release: wheezy/sid
  APT prefers unstable
  APT policy: (500, 'unstable'), (500, 'testing'), (1,
'experimental')
Architecture: amd64 (x86_64)

Kernel: Linux 3.0.0-1-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

xen-hypervisor-4.1-amd64 depends on no packages.

Versions of packages xen-hypervisor-4.1-amd64 recommends:
ii  xen-utils-4.1                 4.1.1-1    XEN administrative tools

Versions of packages xen-hypervisor-4.1-amd64 suggests:
ii  xen-docs-4.1                  4.1.1-1    Documentation for Xen

-- no debconf information

By the way seems to me problem independs from kernel.
I've installed 2.6.39 kernel and tried to start domain with xl create
and it is the same problem.
When i try to start domain with xm i get error:

Error: Device 768 (vbd) could not be connected. Path closed or removed
during hotplug add: backend/vbd/2/768 state: 1

On 3.0.0 with xm i don't see such error. It works like xl.

On Thu, Aug 4, 2011 at 8:09 AM, rush <rush1503 at gmail.com>
wrote:
> Package: xen-hypervisor-4.1-amd64
> Version: 4.1.1-1
> Severity: normal
> File: xen
> Tags: sid
>
> I can't start new domain. xend logs writes
Do Linux PV or Linux HVM guests start?

Other good resources:
http://wiki.xensource.com/xenwiki/Linux_30_bugs
http://wiki.xensource.com/xenwiki/XenCommonProblems


-- 
Todd Deshane
http://www.linkedin.com/in/deshantm
http://www.xen.org/products/cloudxen.html
http://runningxen.com/

I was hit by that bug too on my debian and ubuntu test machines.
Well, at least I think this is the same problem. Short answer: xen 4.1.1
compiled by gcc 4.6 (debian testing/unstable and ubuntu oneiric use that
version) produce a broken hvmloader.

Long answer [1]

Packages with fix (for ubuntu) [2]

Maybe someone can use this to fix the packages in debian?

[1]
https://bugs.launchpad.net/ubuntu/+source/xen/+bug/811951

[2]
https://launchpad.net/~bderzhavets/+archive/xen-hg

hth,
Mark

Your message dated Wed, 21 Dec 2011 01:13:41 +0800
with message-id <4EF0C245.6070409 at goirand.fr>
and subject line This bug isn't relevant anymore
has caused the Debian Bug report #636594,
regarding xen: VM restarting too fast. Refusing to restart to avoid loops.
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.

(NB: If you are a system administrator and have no idea what this
message is talking about, this may indicate a serious mail system
misconfiguration somewhere. Please contact owner at bugs.debian.org
immediately.)


-- 
636594: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=636594
Debian Bug Tracking System
Contact owner at bugs.debian.org with problems
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