Messages in this thread | | | Date | Tue, 7 Oct 2008 09:34:01 -0700 | From | "Paul E. McKenney" <> | Subject | Re: RCU hang on cpu re-hotplug with 2.6.27rc8 |
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On Tue, Oct 07, 2008 at 05:49:39PM +0200, Andi Kleen wrote: > > Hmmm... I chased out a number of these when doing rcutree. > > > > This with classic RCU or preemptable RCU? > > classic. > > > Could you please send me your .config file? > > http://halobates.de/defconfig64
Thank you! Hmmm, classic RCU, worked just fine in 2.6.27-rc7 with Thomas's patch. I was doing random onlines and offlines in a loop, with about 3 seconds between each operation continuously for more than ten hours, both x86 and Power. So could you please try 2.6.27-rc7 with Thomas's patch as follows?
http://www.rdrop.com/users/paulmck/patches/2.6.27-rc7-tglx-timer-1.patch
Failing that, I guess my next step would be to create tracing for classic RCU to help figure out what RCU believes is preventing the grace period from ending.
Thanx, Paul
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