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

From: john . p . donnelly
Date: Thu Jan 21 2021 - 10:38:10 EST


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.

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 )