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by rwmj 1097 days ago
We had another report that it happens on RHEL 8 host, which is a very much older (franken) kernel.
1 comments

I noticed it hangs in similar way when you insert msleep anywhere before smp_prepare_cpus in kernel_init_freeable. But I have no idea whether sleeping is valid here.
Can confirm - just adding msleep(1) there causes the same failure. I'm also unclear if sleeping here is valid or not.