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From: Andi Kleen <andi@firstfloor.org>
To: kernel test robot <xiaolong.ye@intel.com>
Cc: lkp@01.org, hmh@hmh.eng.br, linux-kernel@vger.kernel.org,
        x86@kernel.org
Subject: Re: [x86]  811565123a: BUG: kernel hang in early-boot stage, last printk: Probing EDD (edd=off to disable)... ok
References: <57ef269a.XbyeTJaMf4hvWm9O%xiaolong.ye@intel.com>
        <20161003212828.GK5871@two.firstfloor.org>
Date: Thu, 13 Oct 2016 13:34:55 -0700
In-Reply-To: <20161003212828.GK5871@two.firstfloor.org> (Andi Kleen's message
        of "Mon, 3 Oct 2016 14:28:29 -0700")
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Andi Kleen <andi@firstfloor.org> writes:

Any comments on this?

I still cannot reproduce the failure unfortunately.


> 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>