Subject: Re: CPU hotplug hang due to "swap: make each swap partition have one address_space"

From: Joseph Lo <[email-masked]>
Date: Mon, 4 Feb 2013 12:45:44 +0800

On Mon, 2013-02-04 at 10:36 +0800, Shaohua Li wrote:
> On Fri, Feb 01, 2013 at 10:02:33PM -0700, Stephen Warren wrote:
> > Shaohua,
> > 
> > In next-20130128, commit 174f064 "swap: make each swap partition have
> > one address_space" (from the mm/akpm tree) appears causes a hang/RCU
> > stall for me when hot-unplugging a CPU.
> 
> does this one work for you?
> http://marc.info/?l=linux-mm&m=135929599505624&w=2
> Or try a more recent linux-next. The patch is in akpm's tree.
> 
Hi Shaohua,

The patch you pointed out did fix the issue. Just verified on Tegra
device.

Thanks,
Joseph

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