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

[Steven Rostedt]

On Thu, 27 Apr 2017 15:38:19 +0200
Petr Mladek <pmladek@xxxxxxxx> wrote:

> > by the way,
> > does this `nmi_print_seq' bypass even fix anything for Steven?  
> 
> I think that this is the most important question.
> 
> Steven, does the patch from
> https://lkml.kernel.org/r/20170420131154.GL3452@xxxxxxxxxxxxxxx
> help you to see the debug messages, please?

You'll have to wait for a bit. The box that I was debugging takes 45
minutes to reboot. And I don't have much more time to play on it before
I have to give it back. I already found the bug I was looking for and
I'm trying not to crash it again (due to the huge bring up time).

When I get a chance, I'll see if I can insert a trigger to crash the
kernel from NMI on another box and see if this patch helps.

Thanks,

-- Steve