Hi, When booting a recent kernel under KVM with the virtio-rng device enabled, the boot process was stalling. Bisect pointed to a commit made during the 3.15 window to fetch randomness from newly-registered devices in the hwrng core. The details are in the patches. I considered a couple of approaches, but basing on the init() function being registered, as is done in patch 1 here, seems like the best idea, since quite a few drivers need to initialize their devices before data is fetched off them. Please review and apply if appropriate, Amit Shah (2): hwrng: don't fetch rng from sources without init virtio: rng: introduce an init fn for hwrng core drivers/char/hw_random/core.c | 8 +++++--- drivers/char/hw_random/virtio-rng.c | 11 +++++++++++ 2 files changed, 16 insertions(+), 3 deletions(-) -- 1.9.3 _______________________________________________ Virtualization mailing list Virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linuxfoundation.org/mailman/listinfo/virtualization
