Re: [debug patch] printk: Add a printk killswitch to robustify NMI watchdog messages

[Peter Zijlstra <peterz@xxxxxxxxxxxxx>]

On Mon, 2011-06-06 at 12:00 +0200, Arne Jansen wrote:
> As expected this apparently fixes the problem. But are we confident
> enough this is the true source? If it's really that simple, printk
> calling into the scheduler, why am I the only one seeing this?

Right, so apparently you have contention on console_sem and the up()
actually does a wakeup. I'm still trying to figure out how to do that.


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