On Fri, Oct 14, 2016 at 3:39 PM, Benoît Canet <ben...@cloudius-systems.com>
> Hello list,
> In the process of porting go to OSv I noticed that the Go runtime
> initialization stall half the time waiting in a read for /dev/urandom.
> The message OSv output is "random: blocking on read.".
> It then sometime proceeed to unblock itself a couple dozen of seconds
> Does it ring a bell ? Is it expected behavior from /dev/urandom ?
It looks like entropy pool was depleted. Maybe no hardware entropy sources
were detected and we were using only slow interrupt entropy harvesting.
Another option is that you are using virtio-rng and entropy was depleted on
your host. Check with `cat /proc/sys/kernel/random/entropy_avail`
Which hypervisor are you running on?
Can you show your debug console output?
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