[lkml]   [2018]   [Apr]   [26]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: Linux messages full of `random: get_random_u32 called from`
On Thu, Apr 26, 2018 at 10:47:49PM +0200, Christian Brauner wrote:
> We have observed a similiar problem with libvirt. As soon as entropy is
> provided the boot finishes otherwise it hangs for a long time.
> This is not happening with v4.17-rc1 afaict.

For libvirt there is at least an easy workaround. Make surue the
guest kernel has CONFIG_HW_RANDOM_VIRTIO enabled, and then make sure
qemu is started with the options:

-object rng-random,filename=/dev/urandom,id=rng0 \
-device virtio-rng-pci,rng=rng0


- Ted

 \ /
  Last update: 2018-04-27 02:01    [W:0.234 / U:0.112 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site