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Date: Sun, 11 Oct 2009 18:55:41 +0800 From: Dave Young <hidave.darkstar@...il.com> To: Johannes Berg <johannes@...solutions.net> Cc: linux-kernel@...r.kernel.org, tglx@...utronix.de, linux-wireless <linux-wireless@...r.kernel.org>, "David S. Miller" <davem@...emloft.net> Subject: Re: NOHZ: local_softirq_pending 08 On Sun, Oct 11, 2009 at 6:08 PM, Johannes Berg <johannes@...solutions.net> wrote: > 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. Yes, I'm using b43. I will test the patch you posted in another thread. > > 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 > > -- Regards dave -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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