Re: [PATCH RFC] sysrq: rcu-ify __handle_sysrq

[JÃrn Engel]

On Wed, 23 April 2014 23:37:54 +0200, Jiri Kosina wrote:
> 
> This, however, will make RCU stall detector to send NMI to all online CPUs 
> so that they can dump their stacks.
> 
> IOW, this might actually make the whole sysrq dump last for much longer, 
> and have the log polluted with all-CPU dumps for no good reason.

I use the patch below for some time now.  While it doesn't avoid the
log pollution in the first place, it lessens the impact somewhat.

JÃrn

--
The cost of changing business rules is much more expensive for software
than for a secretaty.
-- unknown