From: Thomas Gleixner <tglx@linutronix.de>
To: Martin Michlmayr <tbm@cyrius.com>
Cc: Stefan Richter <stefanr@s5r6.in-berlin.de>,
linux1394-devel@lists.sourceforge.net,
LKML <linux-kernel@vger.kernel.org>,
Ingo Molnar <mingo@redhat.com>, "H. Peter Anvin" <hpa@zytor.com>,
Jon Masters <jonathan@jonmasters.org>
Subject: Re: nobody cared about IRQ 19 (firewire, on a HP 2510p notebook)
Date: Tue, 1 Apr 2008 09:20:31 +0200 (CEST) [thread overview]
Message-ID: <alpine.LFD.1.10.0804010913160.3219@apollo.tec.linutronix.de> (raw)
In-Reply-To: <20080331144415.GA2604@deprecation.cyrius.com>
On Mon, 31 Mar 2008, Martin Michlmayr wrote:
> * Thomas Gleixner <tglx@linutronix.de> [2008-03-31 12:17]:
> > > I've attached all of that information.
> >
> > Do you have CONFIG_NET_POLL_CONTROLLER enabled in your .config ? If
> > yes, can you please disable it and check whether the problem persists ?
>
> CONFIG_NET_POLL_CONTROLLER was indeed set. When I disable it, the
> problem goes away.
>
> What does that mean?
E1000e does in e1000_netpoll():
disable_irq(adapter->pdev->irq);
...
enable_irq(adapter->pdev->irq);
The network card interrupt is rerouted to a legacy interrupt on
irq_disable(), in your case irq 19.
Sigh, there is not much we can do about that...
@Jon: Any idea ? Can you please gather some more info about that
oddity. It will come back... :(
Thanks,
tglx
next prev parent reply other threads:[~2008-04-01 7:21 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-03-21 15:39 nobody cared about IRQ 19 (firewire, on a HP 2510p notebook) Martin Michlmayr
2008-03-21 16:31 ` Stefan Richter
2008-03-22 11:27 ` Martin Michlmayr
2008-03-30 11:11 ` Stefan Richter
2008-03-30 16:13 ` Martin Michlmayr
2008-03-30 17:40 ` Stefan Richter
2008-03-30 20:10 ` Thomas Gleixner
2008-03-31 9:57 ` Martin Michlmayr
2008-03-31 10:17 ` Thomas Gleixner
2008-03-31 14:44 ` Martin Michlmayr
2008-04-01 7:20 ` Thomas Gleixner [this message]
2008-04-01 7:41 ` Benjamin Herrenschmidt
2008-03-31 1:06 ` Jarod Wilson
2008-03-31 10:19 ` Thomas Gleixner
2008-03-31 10:28 ` Martin Michlmayr
2008-03-31 12:58 ` Stefan Richter
2008-03-31 13:00 ` Stefan Richter
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