[Xen-users] 1 vcpu missing

[tim.schmeling@xxxxxxxxxxx]

Hi,

i have 2 physical machines (OVS2.2)
and 3 virtual servers (Oracle Linux 6.1) running on it.

2 of them crashes and i can't login.
Just the console works fine, no SSH, no network, nothing.
The following message occurs in dmesg:

==========
Call Trace: 
 [<ffffffff8143b26e>] schedule+0x2e1/0x837 
 [<ffffffff8143c436>] do_nanosleep+0x68/0xa8 
 [<ffffffff810783c7>] hrtimer_wakeup+0xbf/0x140 
 [<ffffffff81078306>] hrtimer_start_range_ns+0x14/0x16 
 [<ffffffff810784a1>] sys_nanosleep+0x59/0x69 
 [<ffffffff81011cb2>] system_call_fastpath+0x16/0x1b 
Code: ff 39 85 08 ff ff ff 74 13 48 83 7d 10 00 74 0c 48 8b 55 10 ... 
RIP [<ffffffff104bb7c>] find_busiest_group+0x41f/0x7eb 
 TSP <ffff8802efb65c28> 
---[ end trace 934c90fc998a009f ]--- 
Kernel panic - not syncing: Fatal exception 
Pid: 7936, comm: mongod Tainted: G      D 
2.6.32-100.34.1.el6uek.x86_64 #1 
==========


I monitor the machines (physical) with
orca and write graphs with information from "xm list", liek vcpu,
etc. .
As the system crashes, i can see, that
each system has just 1 vcpu, but i configured each virtual server with
2 vcpu in vm.cfg.

After i restartet the crached systems
alls is fine and "xm list" (physical) and "cat /proc/cpuinfo"
displays 2 cpu's.

Any idea?


Greetz Tim
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