From: linux@arm.linux.org.uk (Russell King - ARM Linux)
To: linux-arm-kernel@lists.infradead.org
Subject: Shutdown problem in SMP system happened on Tegra20
Date: Sat, 25 Aug 2012 08:52:21 +0100 [thread overview]
Message-ID: <20120825075221.GH18957@n2100.arm.linux.org.uk> (raw)
In-Reply-To: <20120825073624.GI31998@S2101-09.ap.freescale.net>
On Sat, Aug 25, 2012 at 03:36:27PM +0800, Shawn Guo wrote:
> On Fri, Aug 24, 2012 at 07:21:33PM +0100, Russell King - ARM Linux wrote:
> > Why not just ensure that CONFIG_PM_SLEEP_SMP is enabled if your platform
> > requires that the lowest CPU number be the CPU dealing with reboot?
>
> I have CONFIG_PM_SLEEP_SMP enabled for imx6q, but still see the imx6q
> restart hook running on cpu1 than cpu0. It seems that
> disable_nonboot_cpus is only called in kernel_power_off but never
> kernel_restart. We should probably patch kernel_restart or
> machine_restart to have disable_nonboot_cpus called?
Remember that this path gets called from IRQ context which makes calling
functions which sleep very dodgy.
next prev parent reply other threads:[~2012-08-25 7:52 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-08-24 8:23 Shutdown problem in SMP system happened on Tegra20 Bill Huang
2012-08-24 15:19 ` Stephen Warren
2012-08-24 18:21 ` Russell King - ARM Linux
2012-08-25 0:00 ` Bill Huang
2012-08-25 7:17 ` Russell King - ARM Linux
2012-08-27 5:43 ` Bill Huang
2012-08-25 7:36 ` Shawn Guo
2012-08-25 7:52 ` Russell King - ARM Linux [this message]
2012-08-25 10:33 ` Shawn Guo
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