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Message-Id: <1234932847.5257.8.camel@marge.simson.net> Date: Wed, 18 Feb 2009 05:54:07 +0100 From: Mike Galbraith <efault@....de> To: Tim Blechmann <tim@...ngt.org> Cc: Robert Richter <robert.richter@....com>, oprofile-list@...ts.sf.net, linux-kernel@...r.kernel.org Subject: Re: 2.6.29-rc4 regression On Tue, 2009-02-17 at 22:56 +0100, Tim Blechmann wrote: > >> hm, i just tried to compile 2.6.28 with this patch applied, and there > >> the NMIs are delivered correctly. > >> > >>> Thanks Tim, on later kernels, is it the behaviour you mentioned that > >>> no NMIs are delivered and you do not receive any NMI? > >> on the current 2.6.29-rc5, no NMIs are delivered. however i have also > >> applied the performance counter branch from tip, maybe that interferes > >> with oprofile? > > > > Hm. > > > > If you're using latest tip, there _should_ be no interference. There > > was a problem a short while back in that both perfcounters and oprofile > > register die handlers, but that was resolved by increasing oprofile's > > handler priority, so that it takes over NMI handling while profiling. > > well, it seems to be a perfcounters vs. oprofile issue. when i applied > the patch i posted earlier onto vanilla 2.6.29-rc5, NMIs were delivered ... Ok, I replied wrt the perfcounters _branch_ you added, and NMI delivery. -Mike -- 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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