Re: [sched/core] 8a8c69c327: WARNING: CPU: 0 PID: 8 at kernel/locking/lockdep.c:3548 lock_release

From	Wanpeng Li <kernellwp@gmail.com>
Newsgroups	linux.kernel
Subject	Re: [sched/core] 8a8c69c327: WARNING: CPU: 0 PID: 8 at kernel/locking/lockdep.c:3548 lock_release
Date	2017-03-19 03:30 +0100
Message-ID	<tmyLw-7ff-3@gated-at.bofh.it> (permalink)
References	<tlJSG-3pV-17@gated-at.bofh.it> <tlZNL-6Td-5@gated-at.bofh.it> <tm0gO-77w-13@gated-at.bofh.it> <tm0Tv-7D7-19@gated-at.bofh.it> <tm0Tv-7D7-17@gated-at.bofh.it>
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2017-03-17 22:13 GMT+08:00 Peter Zijlstra <peterz@infradead.org>:
> On Fri, Mar 17, 2017 at 03:09:09PM +0100, Peter Zijlstra wrote:
>> On Fri, Mar 17, 2017 at 09:24:11PM +0800, Wanpeng Li wrote:
>> > I have another version of patch which utilizes raw_spin_lock_irqsave()
>> > instead of rq_lock_irqsave() in __balance_callback() as before, which
>> > one do you like, Peterz?
>>
>> Hurm.. the raw_spin_lock_irqsave() one I suspect. No point in pinning
>> and then unpinning.
>
> Took your other version and edited that to make it do this.

Please refer to https://lkml.org/lkml/2017/3/17/704 :)

Regards,
Wanpeng Li

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Re: [sched/core] 8a8c69c327: WARNING: CPU: 0 PID: 8 at  kernel/locking/lockdep.c:3548 lock_release Wanpeng Li <kernellwp@gmail.com> - 2017-03-17 14:10 +0100
  Re: [sched/core] 8a8c69c327: WARNING: CPU: 0 PID: 8 at  kernel/locking/lockdep.c:3548 lock_release Wanpeng Li <kernellwp@gmail.com> - 2017-03-17 14:40 +0100
    Re: [sched/core] 8a8c69c327: WARNING: CPU: 0 PID: 8 at  kernel/locking/lockdep.c:3548 lock_release Peter Zijlstra <peterz@infradead.org> - 2017-03-17 15:20 +0100
      Re: [sched/core] 8a8c69c327: WARNING: CPU: 0 PID: 8 at  kernel/locking/lockdep.c:3548 lock_release Peter Zijlstra <peterz@infradead.org> - 2017-03-17 15:20 +0100
        Re: [sched/core] 8a8c69c327: WARNING: CPU: 0 PID: 8 at  kernel/locking/lockdep.c:3548 lock_release Wanpeng Li <kernellwp@gmail.com> - 2017-03-19 03:30 +0100

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