lkml.org 
[lkml]   [2012]   [Aug]   [25]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: Shutdown problem in SMP system happened on Tegra20
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.


\
 
 \ /
  Last update: 2012-08-25 10:21    [W:1.046 / U:0.176 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site