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SubjectRe: [PATCH] smpboot.c: move setup_vector_irq after set_cpu_online
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Hi Joerg,

On 7/2/2015 2:52 PM, Joerg Roedel wrote:
> Hi Jin,
>
> On Thu, Jul 02, 2015 at 12:24:34PM +0800, xiao jin wrote:
>> [ 106.107851] BUG: unable to handle kernel NULL pointer dereference at 0000000000000040
>> [ 106.116702] IP:
>> [ 106.118490] [<ffffffff810044f6>] check_irq_vectors_for_cpu_disable+0x76/0x180
> This might be the same issue I fixed with:
>
> d97eb8966c91 x86/irq: Check for valid irq descriptor in check_irq_vectors_for_cpu_disable()
>
> Can you try whether applying this patch on your kernel fixes your
> issue?
>
Yes, I agree d97eb8966c91 fix the IPANIC. I just notice a description
from http://lkml.kernel.org/r/20150204132754.GA10078@suse.de.

I wish to share the debug result and root cause from my side.

> Thanks,
>
> Joerg
>

Thanks.


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