[ovs-discuss] SegFault when adding or deleting a port from ovs bridge

Ben Pfaff blp at nicira.com
Fri Jul 18 00:20:44 UTC 2014


On Tue, Jul 15, 2014 at 11:46:05AM -0700, Jeffrey Milling wrote:
> I am experiencing a segfault in ovs when I start or stop a VM (using
> libvirt and qemu) which is adding and subtracting the ports vnet[0-9] to my
> network bridge. This is causing a temporary (~10 second) loss of
> connectivity across the switch, which is also accommodating the host
> computer's internet connection, and a loss of connection to the host is not
> acceptable in my application.
> 
> Here is the exact error reported in dmesg:
> 
> [ 3333.168972] device vnet0 entered promiscuous
> mode
> [ 3651.139430] device vnet0 left promiscuous
> mode
> [ 3690.607326] device vnet0 entered promiscuous
> mode
> [ 5767.812656] device vnet0 left promiscuous
> mode
> [ 5767.921245] ovs-vswitchd[4038]: segfault at 39 ip 00000000004597a0 sp
> 00007ffff0fd22b8 error 4 in ovs-v
> switchd[400000+12f000]

Please provide a backtrace.



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