Re: [Xen-users] Remus crashes only with Windows Server 2003

[Shriram Rajagopalan <rshriram@xxxxxxxxx>]

On Fri, Jan 13, 2012 at 9:05 AM,  <xen-users-request@xxxxxxxxxxxxxxxxxxx> wrote:
> I have setup Remus on Debian Squeeze and kernel 3.1.5. Remus and disk 
> replication works perfect  for Ubuntu systems,
> but when I start Remus for Windows Sever 2003 (running Microsoft Exchange 
> Enterprise 2003) it crashes giving the
> following error:
>

Is that Ubuntu VM a PV or HVM ?
I presume that remus with --no-net works properly ?

> root@neutrino:~/working-remus# xm create exchange-hvm.cfg
> root@neutrino:~/working-remus# remus exchange-hvm 192.168.2.4
> qemu logdirty mode: enable
> xc: error: Error when writing to state file (4a) (errno 104) (104 = 
> Connection reset by peer): Internal error
> qemu logdirty mode: disable
> PROF: resumed at 1326315866.106150
> resuming QEMU
> tc filter del dev vif3.0 parent ffff: proto ip pref 10 u32
> RTNETLINK answers: Invalid argument
> We have an error talking to the kernel
> Exception xen.remus.util.PipeException: PipeException('tc failed: 2, No such 
> file or directory',) in <bound method BufferedNIC.__del__ of 
> <xen.remus.device.BufferedNIC object at 0x24b7510>> ignored

This error tells me nothing. "Connection reset by peer" could result
from a lot of issues.
A. check the syslog in primary and backup, for errors related to tapdisk
B. Check the xend.log file in backup
C. If your system works with --no-net, then try to boot up the VM
without remus, and make sure that
there is a vif interface for the VM. And make sure that interface is
on the bridge (if you have bridging enabled).
Remus tries to install a network buffer (sch_plug) to the vif interface.



> root@neutrino:~/working-remus#
>
> It seems that on the backup remus or Xen cannot assign a vif1.0 to the DomU 
> since #ifconfig -a doesn't show a new vif there
> when starting remus.
>
> Any help would be highly appreciated!
>
> Tony.

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