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Date: Wed, 5 Nov 2008 19:11:51 +0300
From: Cyrill Gorcunov <gorcunov@gmail.com>
To: Theodore Tso <tytso@mit.edu>, Yinghai Lu <yinghai@kernel.org>,
       linux-kernel@vger.kernel.org, Thomas Gleixner <tglx@linutronix.de>
Subject: Re: 2.6.28-rc2: REGRESSION in early boot
Message-ID: <20081105161151.GA7286@localhost>
References: <20081104224510.GA7672@mit.edu> <86802c440811041614i5ab5e7f5hf910211ef57423e7@mail.gmail.com> <20081105153508.GB22998@mit.edu>
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[Theodore Tso - Wed, Nov 05, 2008 at 10:35:08AM -0500]
| On Tue, Nov 04, 2008 at 04:14:14PM -0800, Yinghai Lu wrote:
| > 
| > please check http://lkml.org/lkml/2008/11/4/431
| > 
| 
| So do you believe that applying this fix will address the failure I
| was seeing?  In a follow up to your thread you replyed to Ben
| Hurchings saying:
| 
| >your patch is still needed...
| >also please add one WARN_ON when nr > NR_IRQS.
| >YH
| 
| Is there some other patch I should look at as well?

I suppose Yinghai meant this one

	http://lkml.org/lkml/2008/11/5/81

ie WARN if we exceed NR_IRQS and abate to the array bound.

| 
| What is your theory for why this was causing a failure in the timer
| subsystem?  Were we overrunning the end of irq_desc array and stomping
| on some other data structure?
| 
| Thanks, regards,
| 
| 						- Ted
| 
		- Cyrill -