I think its very very unlikely to have a different underlying cause, even
though I there is no guarantee. I assume that I am affected by the same problem
because:
(1) The problem manifests identical to other reports here
(2) The freeze happens particularly during idle times, not under heavy load
(3) This is the only freeze we encountered in years, on many different desktop
and server machines with partially identical or overlapping software setup,
and partially overlapping hardware (graphics boards, hard disks,
peripherals).
(4) The frequency of freezes was drastically reduced after I performed the
suggested steps: compiling a custom kernel with CONFIG_RCU_NOCB_CPU,
setting rcu_nocbs=0-15, and disabling ASLR.
It would be a very very rare coincidence if my issue is unrelated, albeit its
never impossible. I have also updated to latest BIOS but with no improvements.
I will report if there are further freezes.
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https://bugs.launchpad.net/bugs/1690085
Title:
Ryzen 1800X freeze - rcu_sched detected stalls on CPUs/tasks
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