[PATCH v5 1/4] printk/nmi: generic solution for safe printk in NMI

[Steven Rostedt]

On Fri, 28 Apr 2017 15:58:10 +0200
Peter Zijlstra <peterz at infradead.org> wrote:

> On Fri, Apr 28, 2017 at 03:44:23PM +0200, Petr Mladek wrote:
> > On Fri 2017-04-28 11:02:26, Peter Zijlstra wrote:  
> > > On Thu, Apr 27, 2017 at 03:38:19PM +0200, Petr Mladek wrote:  
> > > > Also we need to look for alternatives. There is a chance
> > > > to create crashdump and get the ftrace messages from it.
> > > > Also this might be scenario when we might need to suggest
> > > > the early_printk() patchset from Peter Zijlstra.  
> > > 
> > > I'd be happy to repost those. I still carry them in my tree.  
> > 
> > You do not need to if they are still the same as
> > https://lkml.kernel.org/r/20161018170830.405990950@infradead.org  
> 
> More or less, I think I fixed an intermediate compile fail reported by
> you and the 0-day thing and I wrote a few comments in the last patch.
> 
> They live here fwiw:
> 
>   git://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git debug/tmp
> 
> > I rather do not promise anything but I would like to look at them
> > within next few weeks (after the merge window).  
> 
> Sure, I'll post them again during/after the merge window.

BTW, this is what I ended up using to get the debug information I
needed.

-- Steve