linux-kernel - Re: [patch] BFS 420: a tiny step forward

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Message-ID: <CA+i8gKKDdsG95GFkPskH1fZHBw8oMGu+4DW84Xq1-mLzzgFbrQ@mail.gmail.com>
Date:	Sun, 17 Jun 2012 17:46:00 +0700
From:	Emmanuel Benisty <benisty.e@...il.com>
To:	Hillf Danton <dhillf@...il.com>
Cc:	LKML <linux-kernel@...r.kernel.org>,
	Manuel Krause <manuelkrause@...nline.de>
Subject: Re: [patch] BFS 420: a tiny step forward

Hi Hillf,

On Thu, Jun 7, 2012 at 8:05 PM, Hillf Danton <dhillf@...il.com> wrote:
> On Thu, Jun 7, 2012 at 8:37 PM, Hillf Danton <dhillf@...il.com> wrote:
>> Hi Emmanuel
>>
>> On Wed, Jun 6, 2012 at 11:51 PM, Emmanuel Benisty <benisty.e@...il.com> wrote:
>>>
>>> Unfortunately, the issue is still there.
>>>
>> Hang at same place?
>>
> And try to revert handling CPU_ONLINE, please.
>
>
> --- a/kernel/sched/bfs.c        Sat Jun  2 17:30:28 2012
> +++ b/kernel/sched/bfs.c        Thu Jun  7 20:58:36 2012
> @@ -5352,7 +5352,7 @@ migration_call(struct notifier_block *nf
>                /* Update our root-domain */
>                grq_lock_irqsave(&flags);
>                if (rq->rd) {
> -                       BUG_ON(cpumask_test_cpu(cpu, rq->rd->span));
> +                       BUG_ON(!cpumask_test_cpu(cpu, rq->rd->span));
>
>                        set_rq_online(rq);
>                }
> --

Sorry for the late reply. This patch did solve the issue, thanks.
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