[PATCH 1/1] kernel/crash_core.c - Add crashkernel=auto for x86 and ARM

[Dave Young]

On 01/22/21 at 09:22am, Dave Young wrote:
> Hi John,
> 
> On 01/21/21 at 09:32am, john.p.donnelly at oracle.com wrote:
> > On 11/22/20 9:47 PM, Dave Young wrote:
> > > Hi Guilherme,
> > > On 11/22/20 at 12:32pm, Guilherme Piccoli wrote:
> > > > Hi Dave and Kairui, thanks for your responses! OK, if that makes sense
> > > > to you I'm fine with it. I'd just recommend to test recent kernels in
> > > > multiple distros with the minimum "range" to see if 64M is enough for
> > > > crashkernel, maybe we'd need to bump that.
> > > 
> > > Giving the different kernel configs and the different userspace
> > > initramfs setup it is hard to get an uniform value for all distributions,
> > > but we can have an interface/kconfig-option for them to provide a value like this patch
> > > is doing. And it could be improved like Kairui said about some known
> > > kernel added extra values later, probably some more improvements if
> > > doable.
> > > 
> > > Thanks
> > > Dave
> > > 
> > 
> > Hi.
> > 
> > Are we going to move forward with implementing this for X86 and Arm ?
> > 
> > If other platform maintainers want to include this CONFIG option in their
> > configuration settings they have a starting point.
> 
> I would expect this become arch independent.

Clarify a bit, it can be a general config option under arch/Kconfig and
just put the code in general arch independent part.

> 
> Saeed, Kairui, would any of you like to update the patch?
> 
> > 
> > Thank you,
> > 
> > John.
> > 
> > ( I am not currently on many of the included dist lists  in this email, so
> > hopefully key contributors are included in this exchange )
> > 
> 
> Thanks
> Dave