Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67;
Date:   Thu, 30 Aug 2018 15:04:39 +0200
From:   Peter Zijlstra <peterz@infradead.org>
To:     Siegfried Metz <frame@mailbox.org>
Cc:     linux-kernel@vger.kernel.org, tglx@linutronix.de,
        rafael.j.wysocki@intel.com, len.brown@intel.com, rjw@rjwysocki.net,
        diego.viola@gmail.com, rui.zhang@intel.com,
        viktor_jaegerskuepper@freenet.de
Subject: Re: REGRESSION: boot stalls on several old dual core Intel CPUs
Message-ID: <20180830130439.GM24082@hirez.programming.kicks-ass.net>
References: <74c5abc8-7430-5bc9-2f8a-a2205608bee7@mailbox.org>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <74c5abc8-7430-5bc9-2f8a-a2205608bee7@mailbox.org>
User-Agent: Mutt/1.10.0 (2018-05-17)
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

On Thu, Aug 30, 2018 at 12:55:30PM +0200, Siegfried Metz wrote:
> Dear kernel developers,
> 
> since mainline kernel 4.18 (up to the latest mainline kernel 4.18.5)
> Intel Core 2 Duo processors are affected by boot stalling early in the
> boot process. As it is so early there is no dmesg output (or any log).
> 
> A few users in the Arch Linux community used git bisect and tracked the
> issue down to this the bad commit:
> 7197e77abcb65a71d0b21d67beb24f153a96055e clocksource: Remove kthread

I just dug out my core2duo laptop (Lenovo T500) and build a tip/master
kernel for it (x86_64 debian distro .config).

Seems to boot just fine.. 3/3 so far.

Any other clues?