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Date: Tue, 31 Jan 2012 18:33:05 +0100 From: Steffen Persvold <sp@...ascale.com> To: paulmck@...ux.vnet.ibm.com CC: Daniel J Blueman <daniel@...ascale-asia.com>, Dipankar Sarma <dipankar@...ibm.com>, linux-kernel@...r.kernel.org, x86@...nel.org Subject: Re: RCU qsmask !=0 warnings on large-SMP... On 1/30/2012 17:15, Paul E. McKenney wrote: [] >> >> Hmmm... I wonder if it waits for a grace period? >> >> If it cannot be made to work, I can probably put together some >> alternative diagnostics, but it will take me a day or three. > > Actually, another thing to try is "torture_type=rcu_bh" on the modprobe > line for rcutorture. Also, it would be good to get a stack dump of the > hung process -- it might be hung for some other reason. > Paul, Do not dwell more over this issue at the moment. I have indications that the inconsistency we're seeing is related to something else than the RCU code itself. Kind regards, -- Steffen Persvold, Chief Architect NumaChip Numascale AS - www.numascale.com Tel: +47 92 49 25 54 Skype: spersvold -- 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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