Messages in this thread |  | | Subject | Re: 2f47e7e19f ("x86/mm/kaiser: Use PCID feature to make user and .."): WARNING: CPU: 0 PID: 1 at mm/early_ioremap.c:114 __early_ioremap | From | Dave Hansen <> | Date | Mon, 27 Nov 2017 06:51:12 -0800 |
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On 11/27/2017 02:18 AM, Ingo Molnar wrote: > Any ideas about this bug?
I suspect that it's not bisected perfectly. I did some testing with that config and it pretty much boots or crashes randomly.
Booting in a VM on a CPU without PCID support gets crashes in early userspace, which has tended to be a TLB flushing problem. I'll narrow it down some more today.
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