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Date: Fri, 15 Jul 2016 10:43:24 +0200
From: Ingo Molnar <mingo@kernel.org>
To: Anton Blanchard <anton@samba.org>
Cc: Anna-Maria Gleixner <anna-maria@linutronix.de>,
        LKML <linux-kernel@vger.kernel.org>,
        Peter Zijlstra <peterz@infradead.org>,
        Thomas Gleixner <tglx@linutronix.de>, rt@linutronix.de,
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        Andrew Morton <akpm@linux-foundation.org>,
        Benjamin Herrenschmidt <benh@kernel.crashing.org>,
        Bharata B Rao <bharata@linux.vnet.ibm.com>,
        Christophe Jaillet <christophe.jaillet@wanadoo.fr>,
        Linus Torvalds <torvalds@linux-foundation.org>,
        Michael Ellerman <mpe@ellerman.id.au>,
        Nikunj A Dadhania <nikunj@linux.vnet.ibm.com>,
        Paul Mackerras <paulus@samba.org>,
        Raghavendra K T <raghavendra.kt@linux.vnet.ibm.com>,
        linuxppc-dev@lists.ozlabs.org
Subject: Re: [patch V2 30/67] powerpc/numa: Convert to hotplug state machine
Message-ID: <20160715084324.GB1056@gmail.com>
References: <20160713153219.128052238@linutronix.de>
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* Anton Blanchard <anton@samba.org> wrote:

> Hi Anna-Maria,
> 
> > >> Install the callbacks via the state machine and let the core invoke
> > >> the callbacks on the already online CPUs.  
> > >
> > > This is causing an oops on ppc64le QEMU, looks like a NULL
> > > pointer:  
> > 
> > Did you tested it against tip WIP.hotplug?
> 
> I noticed tip started failing in my CI environment which tests on QEMU.
> The failure bisected to commit 425209e0abaf2c6e3a90ce4fedb935c10652bf80

That's very useful, thanks Anton!

I have removed this commit from the series for the time being, refactored the 
followup commits (there was one trivial conflict). We can re-try this patch when a 
fix is found.

Thanks,

	Ingo