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Date: Wed, 20 Jul 2011 09:09:46 -0700 From: "Paul E. McKenney" <paulmck@...ux.vnet.ibm.com> To: RKK <kulkarni.ravi4@...il.com> Cc: kernelmail.jms@...il.com, linux-kernel@...r.kernel.org, cmm@...ibm.com Subject: Re: Fw: RCU boot debug patch On Wed, Jul 20, 2011 at 09:23:06PM +0530, RKK wrote: > Hi Paul > > >> > >> On Wed, Jul 20, 2011 at 4:11 AM, Paul E. McKenney > >> <paulmck@...ux.vnet.ibm.com> wrote: > >> > Hello, Julie and Ravi, > >> > > >> > Although we arrived at a patch that worked for both of you, we never did > >> > identify exactly which RCU callback (or other issue) that was causing > >> > the problem. It would be good to do this in case there is some other > >> > problem lurking that might bite us in the future. Mingming has therefore > >> > put together the following diagnostic patch which should identify the > >> > callbacks, please see below. > >> > > >> > So could you please run this and let us know what you find? There should > >> > at least be a message for artificial_callback(). > >> > > >> > >> Do i need to apply this patch on today's Linus master or on -rc7 ? > > > > Please do not use -rc7, as that would reproduce your hang. Linus master > > tree would be best, but -rc7 with the fix applied would work fine as well. > > > > Ok. will apply against Linus Master tree and get back to you sometime > later tonight. Thank you, Ravi! Thanx, Paul -- 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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