lxd-armhf1 (on swirlix01) has run without any lockup since the host
kernel update to 4.4. I created a new lxd-armhf2 yesterday (on
swirlix08) which also survived without any workaround. At the same time
I created a new lxd-armhf3 (on swirlix16) which has locked up pretty
well every < 15 minutes (I got a ton of watchdog reboot messages over
the night). I deployed the "rcu_nocb_poll rcutree.kthread_prio=90
rcuperf.verbose=1" thing on that now.
I also asked #is about the host kernels. My suspicion is that
swirlix{01,08} got updated to 4.4 while swirlix16 is still running an
older one.
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https://bugs.launchpad.net/bugs/1531768
Title:
[arm64] lockups some time after booting
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