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

[Eric W. Biederman]

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.

Eric