[PATCH 1/3] panic: Disable crash_kexec_post_notifiers if kdump is not available

[dwalker at fifo99.com]

On Mon, Jul 13, 2015 at 08:19:45PM -0500, Eric W. Biederman wrote:
> dwalker at fifo99.com writes:
> 
> > On Fri, Jul 10, 2015 at 08:41:28AM -0500, Eric W. Biederman wrote:
> >> Hidehiro Kawai <hidehiro.kawai.ez at hitachi.com> writes:
> >> 
> >> > You can call panic notifiers and kmsg dumpers before kdump by
> >> > specifying "crash_kexec_post_notifiers" as a boot parameter.
> >> > However, it doesn't make sense if kdump is not available.  In that
> >> > case, disable "crash_kexec_post_notifiers" boot parameter so that
> >> > you can't change the value of the parameter.
> >> 
> >> Nacked-by: "Eric W. Biederman" <ebiederm at xmission.com>
> >
> > I think it would make sense if he just replaced "kdump" with "kexec".
> 
> It would be less insane, however it still makes no sense as without
> kexec on panic support crash_kexec is a noop.  So the value of the
> seeting makes no difference.

Can you explain more, I don't really understand what you mean. Are you suggesting
the whole "crash_kexec_post_notifiers" feature has no value ?

Daniel