[Xen-devel] xend crash

[James Harper <JamesH@xxxxxxxxxxxxxxxx>]

I am finding that something is going wrong sometimes when I try to kill a domain. the domain will sit in a state with it's memory usage listed as 0 in 'xm list'. xend will stop but will not restart again. an orderly reboot of xen0 will cause an oops.

 

It seems to happen when the domain i'm trying to kill is writing lots of information to the console.

 

here's the crash I get when I try to restart xend:

 

# xend start
XendRoot>configure>
XendRoot>set_config> config_path= /etc/xen/xend-config.sxp
XendRoot>set_config> loading
XendRoot> config= ['xend-config', ['xend-port', '8000'], ['xend-address', ''], ['network-script', '/bin/true'], ['vif-bridge', 'xen-br0'], ['vif-script', 'vif-bridge'], ['vif-antispoof', 'no']]
[xend] INFO (SrvDaemon:604) Xend Daemon started
Traceback (most recent call last):
  File "/usr/sbin/xend", line 115, in ?
    sys.exit(main())
  File "/usr/sbin/xend", line 103, in main
    return daemon.start()
  File "/usr/lib/python2.3/site-packages/xen/xend/server/SrvDaemon.py", line 519, in start
    self.run()
  File "/usr/lib/python2.3/site-packages/xen/xend/server/SrvDaemon.py", line 610, in run
    SrvServer.create(bridge=1)
  File "/usr/lib/python2.3/site-packages/xen/xend/server/SrvServer.py", line 47, in create
    xend = SrvRoot()
  File "/usr/lib/python2.3/site-packages/xen/xend/server/SrvRoot.py", line 29, in __init__
    self.get(name)
  File "/usr/lib/python2.3/site-packages/xen/xend/server/SrvDir.py", line 69, in get
    val = val.getobj()
  File "/usr/lib/python2.3/site-packages/xen/xend/server/SrvDir.py", line 39, in getobj
    self.obj = klassobj()
  File "/usr/lib/python2.3/site-packages/xen/xend/server/SrvDomainDir.py", line 23, in __init__
    self.xd = XendDomain.instance()
  File "/usr/lib/python2.3/site-packages/xen/xend/XendDomain.py", line 802, in instance
    inst = XendDomain()
  File "/usr/lib/python2.3/site-packages/xen/xend/XendDomain.py", line 65, in __init__
    self.initial_refresh()
  File "/usr/lib/python2.3/site-packages/xen/xend/XendDomain.py", line 153, in initial_refresh
    d_dom = self._new_domain(config, doms[domid])
  File "/usr/lib/python2.3/site-packages/xen/xend/XendDomain.py", line 188, in _new_domain
    deferred = XendDomainInfo.vm_recreate(savedinfo, info)
  File "/usr/lib/python2.3/site-packages/xen/xend/XendDomainInfo.py", line 290, in vm_recreate
    d = vm.construct(config)
  File "/usr/lib/python2.3/site-packages/xen/xend/XendDomainInfo.py", line 509, in construct
    image_handler(self, image)
  File "/usr/lib/python2.3/site-packages/xen/xend/XendDomainInfo.py", line 1015, in vm_image_linux
    vm.create_domain("linux", kernel, ramdisk, cmdline, len(vifs))
  File "/usr/lib/python2.3/site-packages/xen/xend/XendDomainInfo.py", line 768, in create_domain
    self.console = xendConsole.console_create(self.dom, console_port=self.console_port)
  File "/usr/lib/python2.3/site-packages/xen/xend/XendConsole.py", line 36, in console_create
    consinfo = daemon.console_create(dom, console_port=console_port)
  File "/usr/lib/python2.3/site-packages/xen/xend/server/SrvDaemon.py", line 711, in console_create
    console = self.consoleCF.createInstance(dom, console_port)
  File "/usr/lib/python2.3/site-packages/xen/xend/server/console.py", line 90, in createInstance
    console = ConsoleController(self, dom, console_port)
  File "/usr/lib/python2.3/site-packages/xen/xend/server/console.py", line 124, in __init__
    self.registerChannel()
  File "/usr/lib/python2.3/site-packages/xen/xend/server/controller.py", line 220, in registerChannel
    self.channel = self.channelFactory.domChannel(self.dom)
  File "/usr/lib/python2.3/site-packages/xen/xend/server/channel.py", line 58, in domChannel
    chan = Channel(self, dom)
  File "/usr/lib/python2.3/site-packages/xen/xend/server/channel.py", line 212, in __init__
    self.port = self.factory.createPort(dom)
  File "/usr/lib/python2.3/site-packages/xen/xend/server/channel.py", line 97, in createPort
    return xu.port(dom)
xen.lowlevel.xu.PortError: Failed to map domain control interface