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

From: Ye Xiaolong
Date: Thu Oct 13 2016 - 20:58:18 EST

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

Btw, you can try below commands to reproduce the error on your local
host, they will download the necessary images and run QEMU:

git clone git://
cd lkp-tests
bin/lkp qemu -k KERNEL job-script # job-script is attached in the original report email

>> 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>