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

[Dexuan Cui]

> From: Alexandru Chirvasitu [mailto:achirvasub@xxxxxxxxx]
> Sent: Friday, December 22, 2017 06:21
> 
> In the absence of logs, the best I can do at the moment is attach a
> picture of the screen I am presented with on the apic=debug boot
> attempt.
> Alex

The panic happens in irq_matrix_assign_system+0x4e/0xd0 in your picture.
IMO we should find which line of code causes the panic. I suppose
"objdump -D kernel/irq/matrix.o" can help to do that.

Thanks,
-- Dexuan