Tvheadend

I tried upgrading by install on a beaglebone black from tvheadend 4.0.8 on debian wheezy to tvheadend 4.2 on ubuntu xenial, armhf.
It doesn't properly work, as tvheadend very often hangs the cpu, see http://tvheadend.org/boards/5/topics/30242.

Mark suggested filing this issue, as this line from the log doesn't look very promising:

2017-12-18 22:50:54.683 [  ERROR]:main: time value out of range (10143003829) of time_t
2017-12-18 22:50:54.692 [  ERROR]:main: time value out of range (10150786795) of time_t
2017-12-18 22:50:54.700 [  ERROR]:main: time value out of range (10142318432) of time_t
...

The symptom is that tvheadend totally brings the system to a halt. Following messages are appear on the console:

[ 3141.467510] INFO: rcu_sched self-detected stall on CPU
[ 3141.473910]  0-...: (5250 ticks this GP) idle=532/140000000000002/0 softirq=50525/50525 fqs=0
[ 3141.482929]   (t=5250 jiffies g=37261 c=37260 q=1)
[ 3141.488516] rcu_sched kthread starved for 5250 jiffies! g37261 c37260 f0x0 RCU_GP_WAIT_FQS(3) ->state=0x402 ->cpu=0
[ 3204.482254] INFO: rcu_sched self-detected stall on CPU
[ 3204.488405]  0-...: (20976 ticks this GP) idle=532/140000000000002/0 softirq=50525/50525 fqs=0
[ 3204.497514]   (t=21003 jiffies g=37261 c=37260 q=1)
[ 3204.503163] rcu_sched kthread starved for 21003 jiffies! g37261 c37260 f0x0 RCU_GP_WAIT_FQS(3) ->state=0x0 ->cpu=0