linux-kernel - Re: [BUG,2.6.28,s390] Fails to boot in Hercules S/390 emulator

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Message-Id: <200903080821.29609.elendil@planet.nl>
Date:	Sun, 8 Mar 2009 08:21:28 +0100
From:	Frans Pop <elendil@...net.nl>
To:	linux-s390@...r.kernel.org
Cc:	Roman Zippel <zippel@...ux-m68k.org>,
	John Stultz <johnstul@...ibm.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [BUG,2.6.28,s390] Fails to boot in Hercules S/390 emulator

On Sunday 08 March 2009, Frans Pop wrote:
> Kernels after 2.6.27 fail to boot in the Hercules S/390 emulator, quite
> early in the boot process:
>      0.141419! Initializing cgroup subsys ns
>      0.141605! Initializing cgroup subsys cpuacct
>      0.142009! Initializing cgroup subsys devices
>      0.180403! cpu: 2 configured CPUs, 0 standby CPUs
>
> I've bisected this to the following commit:
> commit 5cd1c9c5cf30d4b33df3d3f74d8142f278d536b7
> Author: Roman Zippel <zippel@...ux-m68k.org>
> Date:   Mon Sep 22 14:42:43 2008 -0700
>     timekeeping: fix rounding problem during clock update
>
> After reverting 5cd1c9c5cf30 and the somewhat related 6c9bacb41c10 on
> top of 2.6.28.7, the system boots OK again.

JFYI, with the same reverts 2.6.29-rc7 boots correctly too.
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