linux-kernel - Re: [ANNOUNCE] 2.6.33-rc8-rt1

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Message-ID: <20100222123500.GA2526@uudg.org>
Date:	Mon, 22 Feb 2010 09:35:00 -0300
From:	"Luis Claudio R. Goncalves" <lclaudio@...g.org>
To:	John Kacur <jkacur@...hat.com>
Cc:	Thomas Gleixner <tglx@...utronix.de>,
	LKML <linux-kernel@...r.kernel.org>,
	rt-users <linux-rt-users@...r.kernel.org>,
	Ingo Molnar <mingo@...e.hu>,
	Steven Rostedt <rostedt@...dmis.org>,
	Peter Zijlstra <peterz@...radead.org>,
	Carsten Emde <ce@...g.ch>,
	Clark Williams <williams@...hat.com>,
	Frank Rowand <frank.rowand@...sony.com>,
	Robin Gareus <robin@...eus.org>,
	Gregory Haskins <ghaskins@...ell.com>,
	Philippe Reynes <philippe.reynes@...smpp.fr>,
	Fernando Lopez-Lezcano <nando@...ma.stanford.edu>,
	Will Schmidt <will_schmidt@...t.ibm.com>,
	Darren Hart <dvhltc@...ibm.com>, Jan Blunck <jblunck@...e.de>,
	Sven-Thorsten Dietrich <sdietrich@...ell.com>,
	Jon Masters <jcm@...hat.com>,
	Mark Knecht <markknecht@...il.com>,
	Nick Piggin <nickpiggin@...oo.com.au>
Subject: Re: [ANNOUNCE] 2.6.33-rc8-rt1

On Mon, Feb 22, 2010 at 01:23:33PM +0100, John Kacur wrote:
| On Mon, Feb 22, 2010 at 12:28 PM, Thomas Gleixner <tglx@...utronix.de> wrote:
| > On Mon, 22 Feb 2010, John Kacur wrote:
| >> On Mon, Feb 22, 2010 at 12:24 AM, Thomas Gleixner <tglx@...utronix.de> wrote:
| >> > We are zooming in, but there is still a way to go!
| >> >
| >>
| >> Woohoo! More -rt fun.
| >>
| >> Unfortunately, I can't log in on my T500 with this kernel though.
| >> The following shows-up on my serial console.
| >> ------------[ cut here ]------------
| >> WARNING: at /home/jkacur/rt.linux.git/net/mac80211/rx.c:2467 ieee80211_rx+0x4c/0
| >> x721 [mac80211]()
| >
| > Fix below. Thanks,
| >
| >    tglx
| > ----
| > diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
| > index 82a30c1..e735c17 100644
| > --- a/net/mac80211/rx.c
| > +++ b/net/mac80211/rx.c
| > @@ -2464,7 +2464,7 @@ void ieee80211_rx(struct ieee80211_hw *hw, struct sk_buff *skb)
| >        struct ieee80211_supported_band *sband;
| >        struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(skb);
| >
| > -       WARN_ON_ONCE(softirq_count() == 0);
| > +       WARN_ON_ONCE_NONRT(softirq_count() == 0);
| >
| >        if (WARN_ON(status->band < 0 ||
| >                    status->band >= IEEE80211_NUM_BANDS))
| > --
| 
| Thanks Thomas
| 
| That patch fixes the symptom I reported, but unfortunately, I still
| can't log-in to my laptop without the machine freezing.
| Not sure why, investigating.

John,

I have a similar issue. But I suspect it may be KMS related (I had a
similar issue on the early 2.6.31-rt days). I also noticed that the
keyboard is kinda crazy (echoing a lot) on console.

As soon as I have more results I will post them here.

Luis
-- 
[ Luis Claudio R. Goncalves             Red Hat  -  Realtime Team ]
[ Fingerprint: 4FDD B8C4 3C59 34BD 8BE9  2696 7203 D980 A448 C8F8 ]

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