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Subjectunchecked MSR access error in throttle_active_work()
On most recent mainline kernels (such as 5.5-rc0 up to a6ed68d6468b), I see
the following output in dmesg during startup:

[ 78.016676] unchecked MSR access error: WRMSR to 0x19c (tried to write 0x00000000880f3a80) at rIP: 0xffffffff84ab5742 (throttle_active_work+0xf2/0x230)
[ 78.016686] Call Trace:
[ 78.016694] process_one_work+0x247/0x590
[ 78.016703] worker_thread+0x50/0x3b0
[ 78.016710] kthread+0x10a/0x140
[ 78.016715] ? process_one_work+0x590/0x590
[ 78.016735] ? kthread_park+0x90/0x90
[ 78.016740] ret_from_fork+0x3a/0x50

Any clues?

Thanks,
Dominik

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