From: Johannes Berg <johannes@sipsolutions.net>
To: Dave Young <hidave.darkstar@gmail.com>
Cc: linux-kernel@vger.kernel.org, tglx@linutronix.de,
linux-wireless <linux-wireless@vger.kernel.org>,
"David S. Miller" <davem@davemloft.net>
Subject: Re: NOHZ: local_softirq_pending 08
Date: Sun, 11 Oct 2009 12:08:55 +0200 [thread overview]
Message-ID: <1255255735.4095.53.camel@johannes.local> (raw)
In-Reply-To: <20091011095217.GA2200@darkstar>
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On Sun, 2009-10-11 at 17:52 +0800, Dave Young wrote:
> With kernel 2.6.32-rc3-00052-g0eca52a I got following KERN_ERR
> messages just while using firefox:
>
> [ 130.527399] NOHZ: local_softirq_pending 08
> Any idea? or known issue?
Are you using b43 (or wl12x1)? If so, it's a known issue, but the driver
was recently left without an active maintainer in a brouhaha about a bug
fix.
Cf. http://thread.gmane.org/gmane.linux.kernel.wireless.general/39440
Absent proof that mac80211 is safe to run with BHs enabled, the correct
solution is disabling tasklets around the RX function, unlike all the
proposed patches. However, Michael thinks it's such a bad solution that
he has refused to implement it. So far, nobody has bothered to fix the
drivers.
FWIW, I believe the bug to be in b43 and wl12x1, and not as Michael
thinks in the stack.
johannes
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next prev parent reply other threads:[~2009-10-11 10:09 UTC|newest]
Thread overview: 63+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-10-11 9:52 Dave Young
2009-10-11 10:08 ` Johannes Berg [this message]
2009-10-11 10:17 ` Michael Buesch
2009-10-11 10:37 ` Johannes Berg
2009-10-11 10:38 ` David Miller
2009-10-11 10:55 ` Dave Young
2009-10-11 11:18 ` Tilman Schmidt
2009-10-11 11:40 ` Johannes Berg
2009-10-12 8:28 ` Tilman Schmidt
2009-10-12 10:32 ` David Miller
2009-10-12 11:25 ` Tilman Schmidt
2009-10-15 11:40 ` Jarek Poplawski
2009-10-15 17:53 ` Jarek Poplawski
2009-10-21 18:46 ` Tilman Schmidt
2009-10-21 21:19 ` [PATCH] net: Adjust softirq raising in __napi_schedule Jarek Poplawski
2009-10-21 21:25 ` Johannes Berg
2009-10-21 21:37 ` Tilman Schmidt
2009-10-21 21:39 ` Jarek Poplawski
2009-10-22 8:27 ` Johannes Berg
2009-10-23 14:39 ` Tilman Schmidt
2009-10-23 14:46 ` Johannes Berg
2009-10-26 7:41 ` Jarek Poplawski
2009-10-26 7:44 ` Johannes Berg
2009-10-26 7:54 ` Jarek Poplawski
2009-10-26 7:58 ` Johannes Berg
2009-10-26 8:47 ` Tilman Schmidt
2009-10-26 8:56 ` Johannes Berg
2009-10-27 0:52 ` Tilman Schmidt
2009-10-27 7:01 ` Johannes Berg
2009-10-22 11:29 ` David Miller
2009-10-22 12:54 ` Jarek Poplawski
2009-10-22 23:37 ` NOHZ: local_softirq_pending 08 Tilman Schmidt
2009-10-23 13:34 ` Johannes Berg
2009-10-23 14:27 ` Tilman Schmidt
2009-10-23 14:31 ` Johannes Berg
2009-10-23 16:33 ` Tilman Schmidt
2009-10-11 16:39 ` Joe Korty
-- strict thread matches above, loose matches on Subject: below --
2012-05-30 21:48 Dave Jones
2012-05-31 7:52 ` Thomas Gleixner
2012-05-31 7:56 ` Eric Dumazet
2012-05-31 14:04 ` Dave Jones
2012-06-08 16:46 ` Nikos Chantziaras
2012-06-01 22:57 ` Francois Romieu
2012-06-02 20:58 ` Marc Dionne
2012-06-05 23:15 ` Francois Romieu
2012-06-06 1:46 ` Dave Jones
2012-06-06 5:42 ` Francois Romieu
2012-06-08 2:34 ` Dave Jones
2012-06-08 7:57 ` Thomas Gleixner
2012-06-08 14:23 ` Dave Jones
2012-06-08 14:51 ` Thomas Gleixner
2012-06-08 20:27 ` Francois Romieu
2012-06-08 20:41 ` Thomas Gleixner
2012-06-08 21:53 ` Francois Romieu
2012-06-08 22:33 ` Marc Dionne
2012-06-10 20:40 ` Dave Jones
2012-06-25 12:38 ` Johannes Stezenbach
2012-06-25 19:28 ` Francois Romieu
2012-06-25 19:52 ` Dave Jones
2012-06-08 8:32 ` Johannes Stezenbach
2007-05-29 6:01 Rafał Bilski
2007-05-28 21:04 Rafał Bilski
2007-05-28 22:12 ` Anant Nitya
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