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Re: FW: [Xen-devel] Creating domain crashes xend with the latest xenunstable tree



Ian Pratt wrote:
Mike, please can you take a look at this.
Thanks,
Ian

-----Original Message-----
From: xen-devel-bounces@xxxxxxxxxxxxxxxxxxx
[mailto:xen-devel-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of Li Ge
Sent: 16 May 2005 20:16
To: xen-devel@xxxxxxxxxxxxxxxxxxx
Subject: [Xen-devel] Creating domain crashes xend with the latest
xenunstable tree

I was able to build and boot Xen using May 16 unstable tree. But the
xend crashes when I create new domain on Fedora Core 3:

See comments below. Will need more info to diagnose this.

[root@bl3-2 ~]# xm create /images/xen-sarge/xen-sarge.config -c Using
config file "/images/xen-sarge/xen-sarge.config".
Traceback (most recent call last):
File "/usr/sbin/xm", line 10, in ?
main.main(sys.argv)
File "/usr/lib/python/xen/xm/main.py", line 901, in main
xm.main(args)
File "/usr/lib/python/xen/xm/main.py", line 133, in main
self.main_call(args)
File "/usr/lib/python/xen/xm/main.py", line 151, in main_call
p.main(args[1:])
File "/usr/lib/python/xen/xm/main.py", line 286, in main
create.main(args)
File "/usr/lib/python/xen/xm/create.py", line 623, in main (dom,
console) = make_domain(opts, config) File
"/usr/lib/python/xen/xm/create.py", line 578, in make_domain dominfo =
server.xend_domain_create(config) File
"/usr/lib/python/xen/xend/XendClient.py", line 192, in
xend_domain_create {'op' : 'create', File
"/usr/lib/python/xen/xend/XendClient.py", line 141, in xendPost return
self.client.xendPost(url, data) File
"/usr/lib/python/xen/xend/XendProtocol.py", line 80, in xendPost return
self.xendRequest(url, "POST", args) File
"/usr/lib/python/xen/xend/XendProtocol.py", line 151, in xendRequest
resp = conn.getresponse() File "/usr/lib/python2.3/httplib.py", line
778, in getresponse
response.begin()
File "/usr/lib/python2.3/httplib.py", line 273, in begin version,
status, reason = self._read_status() File
"/usr/lib/python2.3/httplib.py", line 237, in _read_status raise
BadStatusLine(line) httplib.BadStatusLine
[root@bl3-2 ~]# ps -ef|grep xend
root 3833 1 0 13:33 ? 00:00:00 python /usr/sbin/xend start root 3834
3833 0 13:33 ? 00:00:00 python /usr/sbin/xend start root 3835 3834 0
13:33 ? 00:00:00 python /usr/sbin/xend start root 3836 3834 0 13:33 ?
00:00:00 python /usr/sbin/xend start root 4523 3834 0 13:35 ? 00:00:00
python /usr/sbin/xend start root 4525 4478 0 13:35 ttyS0 00:00:00 grep
xend
[root@bl3-2 ~]# xm list
(111, 'Connection refused')
Error: Error connecting to xend, is xend running?
[root@bl3-2 ~]# xend start
4547 [DBG] XFRD>main>
4547 [DBG] XFRD>xfrd_main>
4547 [DBG] XFRD>xfrd_listen_socket>
4547 [DBG] XFRD>create_socket>
4547 [DBG] XFRD>create_socket> port=8002
4547 [DBG] XFRD>create_socket< err=0
4547 [DBG] XFRD>xfrd_listen_socket> listen...
4547 [DBG] XFRD>xfrd_listen_socket< err=0
4547 [DBG] XFRD>xfrd_select> socks: 3
[xend] INFO (__init__:988) Xend Daemon started [xend] INFO
(__init__:988) Virq 0 on port 3 [xend] INFO (__init__:988) Virq 1 on
port 6 [xend] INFO (__init__:988) Virq 2 on port 5 [xend] INFO
(__init__:988) Virq 3 on port 10 [xend] INFO (__init__:988) Virq 4 on
port 11 vm_recreate> savedinfo= (domain (id 0) (name Domain-0) (memory
495)) info= {'vcpu_to_cpu': [0, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1], 'cpu_time': 28740382934L,
'shutdown_reason': 0, 'dying': 0, 'dom': 0, 'running': 1, 'maxmem_kb':
-4096,
'paused': 0, 'crashed': 0, 'vcpus': 1, 'shutdown': 0, 'mem_kb': 506952,
'cpumap': [-1,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0], 'blocked': 0}


The stuff below here shows that xend found domain-1 in the list from xc,
but had no saved info for it. So showing 2 domains in the xm list is correct.
Something bad probably happened during domain create though.

Need to see the config used for the domain and the output from 
/var/log/xend.log.
If the problem is reproducible then starting 'xend trace_start'
and posting /var/log/xend.trace would also help.

[xend] INFO (__init__:988) Creating
entry for unknown domain: id=1 vm_recreate> savedinfo= 'None'
info= {'vcpu_to_cpu': [3, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-1, -1], 'cpu_time': 0L, 'shutdown_reason': 0,
'dying': 0, 'dom': 1, 'running': 0, 'maxmem_kb': 268435456, 'paused': 1,

              ^^^^^^^^^^

'crashed': 0, 'vcpus': 1, 'shutdown': 0, 'mem_kb': 262144, 'cpumap':
[-1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0], 'blocked': 0} unix path=
/var/lib/xend/xend-socket network start bridge=xen-br0 netdev=eth1
antispoof=no [xend] INFO (__init__:988) EVENT> xend.domain.create
['Domain-1', '1'] [xend] INFO (__init__:988) EVENT> xend.start 0
[root@bl3-2 ~]# xm list
Name Id Mem(MB) CPU VCPU(s) State Time(s) Console Domain-0 0 495 0 1
r---- 29.6
Domain-1 1 256 3 1 --p-- 0.0

Another problem I see here is just after I restarted xend, it showed
there were
two domains (Domain-0 and Domain-1) in the list which should be only one
(Domain-0).     


Thanks,

Li Ge

Linux Technology Center, IBM

Mike

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