Re: [clocksource] INFO: possible irq lock inversion dependency detected

[Jet Chen]

On 04/08/2014 01:21 PM, Viresh Kumar wrote:
> On 8 April 2014 09:29, Jet Chen <jet.chen@xxxxxxxxx> wrote:
> > (Sorry for previous bad format email)
> > Your patch on my testing branch in LKP system:
> > git://bee.sh.intel.com/git/tchen37/linux.git timer_debug3 got the below
> > dmesg.
> > FYI, I applied your patch on the top of commit
> > 6378cb51af5f4743db0dcb3cbcf862eac5908754 - timer: don't migrate pinned
> > timers.
>
> Hi Jet,
>
> Thanks for your efforts. It looks like we must use spin_lock_irqsave() here.
> And that's all we need to fix this issue..

spin_lock_irqsave() does fix this issue.

Tested-by: Jet Chen <jet.chen@xxxxxxxxx>

> To get the right order in which patches must be applied (obviously with the
> updates I have), please pick this branch:
>
> git://git.linaro.org/people/viresh.kumar/linux.git isolate-cpusets
>
> I hope this fixes the issues you were getting.

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