Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18;
MIME-Version: 1.0
References: <CALjTZvaiCzPQT6Jrx4pFW6KuZj2WLSQQpCbU-sg1jEgscQAKFQ@mail.gmail.com>
 <1587715859.28179.17.camel@suse.cz>
In-Reply-To: <1587715859.28179.17.camel@suse.cz>
From:   Rui Salvaterra <rsalvaterra@gmail.com>
Date:   Fri, 24 Apr 2020 09:21:37 +0100
Message-ID: <CALjTZvZ2B3X1F=tVOvC4h0yGAfEvfu6HUZERmydMrVRsXdOtuQ@mail.gmail.com>
Subject: Re: [BISECTED] bug/regression, x86-64: completely unbootable machine
To:     Giovanni Gherdovich <ggherdovich@suse.cz>
Cc:     x86@kernel.org, linux-kernel@vger.kernel.org
Content-Type: text/plain; charset="UTF-8"
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

On Fri, 24 Apr 2020 at 09:11, Giovanni Gherdovich <ggherdovich@suse.cz> wrote:
>
> Hello Rui,
>
> thanks for the report.
>
> The problem you encountered is due to a bug where the code doesn't work on
> machines with less than 4 physical CPU cores. It is fixed by this patch
> series:
>
> https://lore.kernel.org/lkml/20200416054745.740-1-ggherdovich@suse.cz/
>
> The series has been merged in the branch sched/urgent of the "tip" tree
> (https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git), the commit
> fixing the bug you observed is 23ccee22e834 (x86, sched: Account for CPUs
> with less than 4 cores in freq. invariance), and will be merged in Linus'
> tree at some point.
>
>
> Thanks,
> Giovanni Gherdovich

Hi, Giovanni,

Great, thanks for the quick turnaround. I wager it will have hit
Linus' tree by 5.7-rc3.

Best regards,
Rui