linux-kernel - Re: 4.14.9 doesn't boot (regression)

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Date:   Fri, 29 Dec 2017 16:52:59 +0100
From:   Toralf Förster <toralf.foerster@....de>
To:     Alexander Tsoy <alexander@...y.me>, stable@...r.kernel.org
Cc:     Linux Kernel <linux-kernel@...r.kernel.org>
Subject: Re: 4.14.9 doesn't boot (regression)

On 12/29/2017 04:48 PM, Alexander Tsoy wrote:
> В Пт, 29/12/2017 в 12:14 +0100, Toralf Förster пишет:
>> I can confirm now, that that kernel breaks both a desktop (an
>> ThinkPad T440s i5) and a headless server (i3930) setup. For the
>> server the attached .config works fine but switching from
>> CONFIG_GENERIC_CPU to CONFIG_MCORE2 legt them hang at boot w/op any
>> messages. Similar picture at the desktop.
> 
> You most likely have the same problem as me:
> https://lkml.org/lkml/2017/12/29/279
> 

Indeed, I got a similar message at my ThinkPad too when I tried to bisect it:

>[   21.776011] INFO: rcu_preempt detected stalls on CPUs/tasks:
>[   21.w77008]  0-...!: (0 ticks this GP) idle=c56/140000000000000/0
>softirq=73/73 fqs=0 
>[   21.777008]  (detected by 1, t=21002 jiffies, g=-255, c=-256, q=4)


-- 
Toralf
PGP C4EACDDE 0076E94E