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

From: Ingo Molnar
Date: Mon Jun 06 2011 - 18:08:25 EST

* Peter Zijlstra <peterz@xxxxxxxxxxxxx> wrote:

> 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.

ok. Could you please send a changeloggified patch with a
Reported-and-tested-by from Arne in a new thread, etc?


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