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From: Andrew Morton <akpm@linux-foundation.org>
To: Ingo Molnar <mingo@elte.hu>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>,
	Steven Rostedt <srostedt@redhat.com>,
	Lee Schermerhorn <Lee.Schermerhorn@hp.com>,
	linux-ia64 <linux-ia64@vger.kernel.org>,
	linux-kernel <linux-kernel@vger.kernel.org>,
	Tony Luck <tony.luck@intel.com>, Ingo Molnar <mingo@redhat.com>,
	Bob Picco <bob.picco@hp.com>, Eric Whitney <eric.whitney@hp.com>
Subject: Re: 2.6.25-rc2-mm1 - boot hangs on ia64
Date: Thu, 28 Feb 2008 10:13:43 -0800	[thread overview]
Message-ID: <20080228101343.1b9548e6.akpm@linux-foundation.org> (raw)
In-Reply-To: <20080228115041.GA22082@elte.hu>

On Thu, 28 Feb 2008 12:50:41 +0100 Ingo Molnar <mingo@elte.hu> wrote:

> @@ -1000,7 +1001,7 @@ void release_console_sem(void)
>  	 * If we try to wake up klogd while printing with the runqueue lock
>  	 * held, this will deadlock.
>  	 */
> -	if (wake_klogd && !runqueue_is_locked())
> +	if (wake_klogd)
>  		wake_up_klogd();
>  }

I don't think we shoudl have added that hack in the first place.  It solves a
problem which about three developers hit four times in five years but it
has made kernel logging less reliable for everyone.


  parent reply	other threads:[~2008-02-28 18:15 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-02-25 15:56 Lee Schermerhorn
2008-02-26 11:25 ` KOSAKI Motohiro
2008-02-26 11:31   ` Ingo Molnar
2008-02-27  1:42     ` KOSAKI Motohiro
2008-02-27  7:11       ` Ingo Molnar
2008-02-28 10:38         ` KOSAKI Motohiro
2008-02-28 11:50           ` Ingo Molnar
2008-02-28 12:13             ` KOSAKI Motohiro
2008-02-28 18:13             ` Andrew Morton [this message]
2008-02-28 19:12               ` Ingo Molnar
2008-02-28 19:24                 ` Andrew Morton
2008-02-28 19:32                   ` Ingo Molnar

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