Re: [tip:x86/debug] x86/kdump: No need to disable ioapic/ lapic in crash path
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- Subject: Re: [tip:x86/debug] x86/kdump: No need to disable ioapic/ lapic in crash path
- From: Yinghai Lu <yinghai@xxxxxxxxxx>
- Date: Mon, 13 Feb 2012 10:16:00 -0800
- Cc: linux-kernel@xxxxxxxxxxxxxxx, mingo@xxxxxxxxxx, hpa@xxxxxxxxx, torvalds@xxxxxxxxxxxxxxxxxxxx, kexec@xxxxxxxxxxxxxxxxxxx, vgoyal@xxxxxxxxxx, akpm@xxxxxxxxxxxxxxxxxxxx, tglx@xxxxxxxxxxxxx, dzickus@xxxxxxxxxx, mingo@xxxxxxx, linux-tip-commits@xxxxxxxxxxxxxxx
- In-reply-to: <CAE9FiQVj12UCGbOe4wZfx-L8tdab-1si-RA=vBnNeZ7cUNqyyg@mail.gmail.com>
On Mon, Feb 13, 2012 at 8:51 AM, Yinghai Lu <yinghai@xxxxxxxxxx> wrote:
>> So I suspect we have a bug in our apic initialization somewhere, but
>> apic initialization should happen after printk are enabled. Or at least
>> after early printks so the reset YH is reporting doesn't make much sense.
>
> will try Don's first version patch that only removing disable_IO_APIC.
first version patch (only removing disable_IO_APIC) is working.
Thanks
Yinghai
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