From: Mel Gorman <mgorman@suse.de>
To: Steven Rostedt <rostedt@goodmis.org>
Cc: linux-kernel@vger.kernel.org
Subject: Re: [REGRESSION] jump label safety checks break automatic numa balancing
Date: Mon, 7 Oct 2013 09:42:37 +0100 [thread overview]
Message-ID: <20131007084237.GE11028@suse.de> (raw)
In-Reply-To: <20131004110356.42a2d268@gandalf.local.home>
On Fri, Oct 04, 2013 at 11:03:56AM -0400, Steven Rostedt wrote:
>
> FYI, please remove my redhat email from your address book. I don't read
> my RH email when I travel (which I've been doing a lot lately).
>
>
> On Fri, 04 Oct 2013 10:44:00 -0400
> Mel Gorman <mgorman@suse.de> wrote:
>
> > With CONFIG_NUMA_BALANCING=y and booting with numa_balancing=enable
> > there is a crash very early in the lifetime of the system. By setting
> > earlyprintk=ttyS0,115200 the error is visible and looks something like
> > this
> >
> > [ 0.000000] Kernel command line: BOOT_IMAGE=/vmlinuz-3.11.0-vanilla+ root=/dev/sda5 reboot=pci console=tty0 console=ttyS0,115200 numa_balancing=enable earlyprintk=ttyS0,115200
> > [ 0.000000] Unexpected op at task_numa_fault+0x1d/0xa0 [ffffffff81085ded] (0f 1f 44 00 00) arch/x86/kernel/jump_label.c:53
> > PANIC: early exception 06 rip 10:ffffffff815b2663 error 0 cr2 ffff88107ffff000
>
> What's at ffffffff815b2663?
>
kernel/sched/fair.c:5901
--
Mel Gorman
SUSE Labs
next prev parent reply other threads:[~2013-10-07 8:42 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-09-30 14:39 [REGRESSION] jump label safety checks break automatic numa balancing Mel Gorman
2013-10-04 15:03 ` Steven Rostedt
2013-10-07 8:42 ` Mel Gorman [this message]
2013-10-08 10:33 ` Raghavendra KT
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