linux-kernel - Re: [x86] 811565123a: BUG: kernel hang in early-boot stage, last printk: Probing EDD (edd=off to disable)... ok

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Date:   Fri, 14 Oct 2016 08:46:16 +0800
From:   Ye Xiaolong <xiaolong.ye@...el.com>
To:     Andi Kleen <andi@...stfloor.org>
Cc:     lkp@...org, hmh@....eng.br, linux-kernel@...r.kernel.org,
        x86@...nel.org
Subject: Re: [x86]  811565123a: BUG: kernel hang in early-boot stage, last
 printk: Probing EDD (edd=off to disable)... ok

On 10/13, Andi Kleen wrote:
>Andi Kleen <andi@...stfloor.org> writes:
>
>Any comments on this?
>
>I still cannot reproduce the failure unfortunately.

oh, sorry, missed you mail before, I'll try the tests you mentioned and
provide results later.

Thanks,
Xiaolong

>
>
>> Could you do two tests for me:
>>
>> - Enable CONFIG_MICROCODE_INTEL and see if it boots then
>>
>> - Add CONFIG_DEBUG_INFO to the config.
>> Add -s to the qemu command line and boot again. Then when it hangs 
>> connect gdb to see where it hangs
>>
>> gdb -ex "target remote localhost:1234" vmlinux
>> bt
>>
>> <show output>