Re: [PATCH] Revert "x86/apic: Remove init_bsp_APIC()"

From: Dou Liyang
Date: Sun Dec 03 2017 - 22:29:02 EST


Hi Ville,

[...]

So, the true thing I want to get is the log without the revert.
or could you tell me the phenomenon and reason of your machine hang
directly. :-)

IIRC the last thing in the log is the "Hierarchical SRCU implementation."
line, after which the CPU seems to start spinning somewhere (the fan turns
on pretty quickly). Where exactly it spins, I don't know at this time.


Yes, I see. Sometimes, positioning the source of a problem is difficult.

Seems initcalls have been executed, we can add "initcall_debug" option
in the kernel command line for tracing initcalls as they are executed.

So, we can make this patch more reasonable.

Thanks
dou