Re: [PATCH V4] kernel, add bug_on_warn

On Tue, Oct 28, 2014 at 05:44:25AM -0700, Andi Kleen wrote:

quoted

quoted

I suppose ... but that would mean I would have to explain to an end user the
elaborate process of enabling kdb, inserting a break point, etc.  The whole
purpose of this is to let an end user panic on WARN() easily.

Asking an end user to enable kdb is magnitudes worse than asking them to
recompile a kernel.

Agreed. Asking a customer to setup and run kdb and put breakpoints is much
more pain than simply asking to reboot kernel with a command line option.

If you have a command line option to execute kdb commands you still
would only have a command line option, just a slightly longer one.

kdb="on, bp warn_slowpath_common sr c, go" 

So does it already work or proposal is to make something like this work
with kdb?

What about the case of enabling it post boot and using a /sys file for 
that.

Thanks
Vivek