linux-kernel - Re: [19.666764] Disabling IRQ #23

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Date:	Thu, 18 Sep 2008 18:23:02 -0400 (EDT)
From:	Alan Stern <stern@...land.harvard.edu>
To:	Justin Mattock <justinmattock@...il.com>
cc:	Bjorn Helgaas <bjorn.helgaas@...com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Yinghai Lu <yhlu.kernel@...il.com>,
	Chris Snook <csnook@...hat.com>,
	David Brownell <dbrownell@...rs.sourceforge.net>,
	Linux-usb <linux-usb@...r.kernel.org>
Subject: Re: [19.666764] Disabling IRQ #23

On Wed, 17 Sep 2008, Justin Mattock wrote:

> Hello,
> after a bit of
> searching I located a patch for something
> that might be similar to this issue:(cant seem to locate the
> linux-kernel thread).
> http://www.gossamer-threads.com/lists/linux/kernel/966076
> I've applied the patches just to see what would happen,
> As for now I have not seen the Disable irq #23 yet,
> (usually after a recompile of the kernel, upon reboot this message will appear,
> this time it didn't). But you never know I'll run the system for a few days
> and see if it pops up.

You are concentrating on the symptom instead of the problem.  The
symptom is that "Disabling IRQ #23" message -- don't worry about it.  

The underlying problem is the "ehci_hcd 0000:00:1d.7: HC died;
cleaning up" message -- it should _never_ appear.  If you have a 
reliable way of provoking it then something needs to be fixed.

Alan Stern

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