On Tue, Feb 25, 2014 at 10:45:26AM +0800, Michael wang wrote:
> Hi, Paul
>
> On 02/25/2014 08:30 AM, Paul E. McKenney wrote:
> [snip]
> >
> > I don't see an opportunity for load_balance() to loop with interrupts
> > disabled, but maybe I am looking at the wrong code. The NMI handler
> > looks to me like it is diagnosing rather than being the problem.
>
> Thanks for the comment :)
>
> It was a stuck inside pick_next_task_fair(), and we already got one
> solution now ;-)
What I get for too-late reply. Glad it is fixed!
Thanx, Paul
> Regards,
> Michael Wang
>
> >
> > Thanx, Paul
> >
> >> [<ffffffff8108a88f>] idle_balance+0x10f/0x1c0
> >> [<ffffffff8108aa5e>] pick_next_task_fair+0x11e/0x2a0
> >> [<ffffffff8107bbf3>] ? dequeue_task+0x73/0x90
> >> [<ffffffff815717fa>] __schedule+0x12a/0x670
> >> [<ffffffff81571e19>] schedule+0x29/0x70
> >> [<ffffffff81067daf>] worker_thread+0x1bf/0x370
> >> [<ffffffff81067bf0>] ? manage_workers+0x160/0x160
> >> [<ffffffff8106e799>] kthread+0xc9/0xe0
> >> [<ffffffff8106e6d0>] ? flush_kthread_worker+0xb0/0xb0
> >> [<ffffffff8157d62c>] ret_from_fork+0x7c/0xb0
> >> [<ffffffff8106e6d0>] ? flush_kthread_worker+0xb0/0xb0
> >> Kernel Offset: 0x0 from 0xffffffff81000000 (relocation range:
> >> 0xffffffff80000000-0xffffffff9fffffff)
> >
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