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Re: [Xen-devel] Xen master hangs

On 24/07/15 17:52, Doug Goldstein wrote:
<I apologize for the double email, clearly I can't handle keyboard shortcuts>

I am currently trying to get Xen to boot on my Lenovo T430 laptop with
BIOS 2.68 and using master results in no output to the screen and the
machine being completely hung (must pull the power cable). I've gone
ahead and bisected it and the resultant commit is:

commit 4824bdfdabebd4042277461cb3cbefa61c624804
Author: Chao Peng <chao.p.peng@xxxxxxxxxxxxxxx>
Date:   Tue Jul 7 15:42:49 2015 +0200

    x86: add socket_cpumask

    Maintain socket_cpumask which contains all the HT and core siblings
    in the same socket.

    Signed-off-by: Chao Peng <chao.p.peng@xxxxxxxxxxxxxxx>
    Acked-by: Jan Beulich <jbeulich@xxxxxxxx>

Since I'm not getting any output I'm at a loss how to debug this problem
further. I do have Intel AMT setup with Serial Over LAN working so if its
at all possible to get more info over serial I will do that. I am already booting
Xen with console=vga,com1 com1=115200,amt loglvl=all so not sure what
else to add.

This commit broke booting on just about every server.

New master has the fix it in, although there is one further fix ahead of that.  Try using bc299d01b925d934219b6e8c29fadcd1f1a9210b which is two ahead of current master.

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