From: Anton Blanchard <anton@samba.org>
To: Anna-Maria Gleixner <anna-maria@linutronix.de>
Cc: LKML <linux-kernel@vger.kernel.org>,
Peter Zijlstra <peterz@infradead.org>,
Ingo Molnar <mingo@kernel.org>,
Thomas Gleixner <tglx@linutronix.de>, <rt@linutronix.de>,
Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
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
Date: Fri, 15 Jul 2016 10:28:25 +1000 [thread overview]
Message-ID: <20160715102825.34d60395@kryten> (raw)
In-Reply-To: <9e878731c9b447ee5e8318237822c492@www.linutronix.de>
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
It reproduces running ppc64le QEMU on a x86-64 box. On Ubuntu:
sudo apt-get install qemu-system-ppc gcc-powerpc64le-linux-gnu
make ARCH=powerpc pseries_le_defconfig
make ARCH=powerpc CROSS_COMPILE=powerpc64le-linux-gnu- vmlinux -j4
qemu-system-ppc64 -nographic -vga none -kernel vmlinux
Anton
next prev parent reply other threads:[~2016-07-15 0:29 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20160713153219.128052238@linutronix.de>
2016-07-13 17:16 ` [patch V2 18/67] powerpc/perf: Convert book3s notifier to state machine callbacks Anna-Maria Gleixner
2016-07-13 17:16 ` [patch V2 30/67] powerpc/numa: Convert to hotplug state machine Anna-Maria Gleixner
2016-07-14 21:42 ` Anton Blanchard
2016-07-14 23:37 ` Anna-Maria Gleixner
2016-07-15 0:28 ` Anton Blanchard [this message]
2016-07-15 8:43 ` Ingo Molnar
2016-07-15 12:14 ` Anton Blanchard
2016-07-15 16:20 ` Sebastian Andrzej Siewior
2016-07-18 14:07 ` [PATCH v2] " Sebastian Andrzej Siewior
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