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[Xen-users] windows network freeze


  • To: xen-users@xxxxxxxxxxxxx
  • From: Dusan <fesz21@xxxxxxxxx>
  • Date: Mon, 13 Nov 2017 15:04:20 +0100
  • Delivery-date: Mon, 13 Nov 2017 14:05:42 +0000
  • List-id: Xen user discussion <xen-users.lists.xen.org>

Hi,

we ran hosts on xen 4.1 (on debian) for many years, about ten hosts (all linux 
debian) and one windows (windows 2008 R2).

After upgrade to 4.8 we start having issues with networking on windows host, after a 
while (once a few hours , once it was ok whole weekend): Windows say that have no 
internet connection, but "cable is connected", I can't ping from windows to 
dom0 or back from dom0 to windows, I can see in brctl show same state as it was working:

(in vif*-emu is state UNKOWN, in vif* state DOWN)

34: vif30.0-emu: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast 
master xenbr0 state UNKNOWN group default qlen 1000
     link/ether fe:ff:ff:ff:ff:ff brd ff:ff:ff:ff:ff:ff
     inet6 fe80::fcff:ffff:feff:ffff/64 scope link
        valid_lft forever preferred_lft forever
35: vif30.0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc mq master 
xenbr0 state DOWN group default qlen 32
     link/ether fe:ff:ff:ff:ff:ff brd ff:ff:ff:ff:ff:ff

After reboot of this windows host, network start working again.  All other 
hosts (linux debian) is working week without problem.

With upgrade to 4.8 we migrated data from LVM to ZFS, It looks like this issue 
happened when sending zfs snapshots to other hosts (or when is bigger load of 
system during week days), but it could be wrong thought and zfs don't have any 
fluence on this.
Config of this host in attachment.

Please can you point me where could be problem?

Thanks, Dusan


Attachment: win2k8.cfg
Description: Text document

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