Re: [PATCH 9/9] x86/UV: Add ability to disable UV NMI handler

From: Hedi Berriche
Date: Thu Sep 12 2013 - 15:48:45 EST


On Thu, Sep 12, 2013 at 19:59 Mike Travis wrote:
| On 9/12/2013 10:27 AM, Paul E. McKenney wrote:
|
| > But what is it that you are looking for? If you want to silence it
| > completely, the rcu_cpu_stall_suppress boot/sysfs parameter is what
| > you want to use.
|
| We have by default rcutree.rcu_cpu_stall_suppress=1 on the kernel
| cmdline. I'll double check if it was set during my testing.

FWIW, for recent enough kernels the correct boot parameter is
rcupdate.rcu_cpu_stall_suppress.

It used to be rcutree.rcu_cpu_stall_suppress, but that has changed after
commit 6bfc09e.

Cheers,
Hedi.
--
Be careful of reading health books, you might die of a misprint.
-- Mark Twain
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