Comment # 8
on bug 108309
from Samantha McVey
Also to clarify: The first dmesg I uploaded had `rcu: INFO: rcu_sched detected stalls on CPUs/tasks:` in the log. Adding `idle=nomwait` to kernel cmdline has so far fully resolved this and other messages which sometimes would appear which not always referenced rcu_sched but seemed to imply a cpu or thread had stalled. There seem to be several Ryzen errata related to mwait (https://www.amd.com/system/files/TechDocs/55449_Fam_17h_M_00h-0Fh_Rev_Guide.pdf) so I think that issue is fixed though the amdgpu/drm issues seem to have remained.
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