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

From: Peter Zijlstra
Date: Mon Jun 06 2011 - 14:15:42 EST


On Mon, 2011-06-06 at 20:07 +0200, Ingo Molnar wrote:

> - The first one that minimally removes the lockdep_off()/on() dance
> and fixes the regression: the patch that i sent earlier today.
> I *think* that should fix the crash.
>
> 3.0 material.

I think the lock_is_held() fix is the urgent one, all the others are
make printk() suck less patches, ie. not so very important.

Without that lock_is_held() thing all lockdep_off() sites, inc ntfs will
still be able to trigger this problem.

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