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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