linux-kernel - Re: [BUG] TASK_DEAD task is able to be woken up in special condition

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Date:	Thu, 26 Jan 2012 16:24:27 -0500
From:	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>
To:	Mike Galbraith <efault@....de>
Cc:	peterz@...radead.org, oleg@...hat.com, y-goto@...fujitsu.com,
	mingo@...e.hu, kamezawa.hiroyu@...fujitsu.com,
	linux-kernel@...r.kernel.org
Subject: Re: [BUG] TASK_DEAD task is able to be woken up in special condition

>> >>                         task->state = TASK_UNINTERRUPTIBLE;
>> >>                         schedule()
>
> I think you meant:
>        __set_current_state(TASK_UNINTERRUPTIBLE);
>        schedule();
>
> The way you wrote it, task doesn't have to be current, so could be doing
> the bad thing Peter pointed out, diddling *another* tasks ->state.

Silly me. Thank you for following up me.
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