linux-kernel - Re: 2.6.28-rc2: REGRESSION in early boot

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Date:	Wed, 5 Nov 2008 19:11:51 +0300
From:	Cyrill Gorcunov <gorcunov@...il.com>
To:	Theodore Tso <tytso@....edu>, Yinghai Lu <yinghai@...nel.org>,
	linux-kernel@...r.kernel.org, Thomas Gleixner <tglx@...utronix.de>
Subject: Re: 2.6.28-rc2: REGRESSION in early boot

[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 -
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