Re: [Xen-devel] PCI-Passthrough Error: transmit queue timed out

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 31.01.15 at 09:49, <openlui@xxxxxxx> wrote:
> 2015-01-31T04:53:45.005161-05:00 linux-gbze kernel: [63331.820079] 
> ------------[ cut here ]------------
> 2015-01-31T04:53:45.005187-05:00 linux-gbze kernel: [63331.820163] WARNING: 
> CPU: 
> 0 PID: 0 at net/sched/sch_generic.c:264 dev_watchdog+0x266/0x270()
> 2015-01-31T04:53:45.005190-05:00 linux-gbze kernel: [63331.820196] NETDEV 
> WATCHDOG: eth0 (ixgbe): transmit queue 1 timed out

Please keep in mind that Intel officially doesn't support passing
through physical functions of NICs to guests; only SR-IOV VF
pass-through is supported from what they've been telling us. This
may well have to do with (wild guess!) them knowing their PF
drivers not working reliably in unprivileged guests - in any event
your report seems to hint towards a driver issue.

Jan


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