From: Thomas Falcon
Date: Tue, 9 Aug 2016 12:47:37 -0500
> If the device is running while the MTU is changed, ibmveth
> is closed and the bounce buffer is freed. If a transmission
> is sent before ibmveth can be reopened, ibmveth_start_xmit
> tries to copy to the null bounce buffer, leading to a
If the device is running while the MTU is changed, ibmveth
is closed and the bounce buffer is freed. If a transmission
is sent before ibmveth can be reopened, ibmveth_start_xmit
tries to copy to the null bounce buffer, leading to a kernel
oops. The proposed solution disables the tx queue until
ibmv
