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

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Message-ID: <dd18b0c30809190941g8b44175haf3e3a7c354fe01c@mail.gmail.com>
Date:	Fri, 19 Sep 2008 09:41:55 -0700
From:	"Justin Mattock" <justinmattock@...il.com>
To:	"Alan Stern" <stern@...land.harvard.edu>
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 Fri, Sep 19, 2008 at 9:08 AM, Alan Stern <stern@...land.harvard.edu> wrote:
> On Thu, 18 Sep 2008, Justin Mattock wrote:
>
>> > 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
>> >
>> >
>>
>> The reliable way of provoking this message is
>
> Which message?  The "Disabling IRQ #23" message or the "HC died;
> cleaning up" message?
>
>> when uvcvideo is loading(not the module, but the tools involved with
>> the communication of loading the firmware and module).
>> i.g. when using the udev approach with isight-firware-tools
>> I will receive this, but if I use the hal approach
>> this message does not appear. Now with using the udev approach
>> I did try this patch:(not knowing what it really was doing),
>> http://www.gossamer-threads.com/lists/linux/kernel/966076
>> And it seems this message has not appeared. From looking at the
>> situation after running this patch irregardless if it was intended for this
>> or not, I'm wondering if isight-firware-tools is the main issue with this
>> rather than the kernel.
>
> It doesn't matter what tools or other userspace programs you run; the
> "HC died; cleaning up" message should _never_ appear.
>
> Alan Stern
>
>

The disable irq #23 message.

As for the HC died; cleaning up
(where did you see that, can't seem to find that?)


-- 
Justin P. Mattock
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