Re: PROBLEM: 4.15.0-rc3 APIC causes lockups on Core 2 Duo laptop

[Dou Liyang]

Hi Alexandru,

At 12/28/2017 10:51 AM, Alexandru Chirvasitu wrote:
> Ah, of course. Attached is the output of `journalctl --boot=-1` after
> booting, getting locked up, and then rebooting a good kernel.
For the Hard lockups on both CPUs after login:

Please try the patch in the attachment by

git am ./0001-x86-vector-Replace-the-raw_spin_lock-with-raw_spin_l.patch

or

patch -p1 < 
./0001-x86-vector-Replace-the-raw_spin_lock-with-raw_spin_l.patch

> Slightly different version of 4.15-rc5; this one has both patches
> applied, yours and Linus' for kexec, but the latter shouldn't make a
> difference.
>
> ---
>
> You'll see another trace in there that's been bugging me, about W=X
> checking. I'm not qualified to judge how related they are, but during
> these past few days I've compiled and tested many kernels, and many of
> them have exhibited the W+X thing but*not*  the lockups.

Yes, I found it, but I am not familiar with it and have no idea.

Thanks,
	dou.

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