*** This bug is a duplicate of bug 1799497 ***
https://bugs.launchpad.net/bugs/1799497
** This bug has been marked a duplicate of bug 1799497
4.15 kernel hard lockup about once a week
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Another freeze, end of dmesg below. Given that zram keeps being
mentioned in the error logs, I've now uninstalled zram-config to see if
that helps.
[71288.261364] NMI watchdog: Watchdog detected hard LOCKUP on cpu 0
[71288.261364] Modules linked in: cfg80211 xt_conntrack ipt_MASQUERADE
nf_nat_ma
