On 04/20/2018 08:31 AM, Thomas Huth wrote: > On 19.04.2018 17:49, Christian Borntraeger wrote: >> On 04/18/2018 02:31 PM, Thomas Huth wrote: >>> The virtio-net receive buffers are filled asynchronously, so we should >>> make sure to properly shut down the virtio-net device before we jump into >>> the loaded kernel. Otherwise an incoming packet could destroy memory of >>> the OS kernel if it did not re-initialize the virtio-net device fast >>> enough yet. >> >> The normal bios does a full subsystem reset before we enter the OS. >> (see jump_to_IPL_code the diag 308). That should reset all virtio >> devices on the qemu level. Shouldnt we rather do the same for >> the net bios? > > That should fix this issue, too, right. I'll give it a try and include > it in v2 if I can make it work...
The advantage is that it also put the sclp console into a default state. > > Thomas >
