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:   Thu, 13 Oct 2016 13:34:55 -0700
From:   Andi Kleen <andi@...stfloor.org>
To:     kernel test robot <xiaolong.ye@...el.com>
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

Andi Kleen <andi@...stfloor.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>