[PATCH v3 1/2] powerpc: handle kdump appropriately with crash_kexec_post_notifiers option

[Michael Ellerman]

On Tue, 7 Dec 2021 16:07:18 +0530, Hari Bathini wrote:
> Kdump can be triggered after panic_notifers since commit f06e5153f4ae2
> ("kernel/panic.c: add "crash_kexec_post_notifiers" option for kdump
> after panic_notifers") introduced crash_kexec_post_notifiers option.
> But using this option would mean smp_send_stop(), that marks all other
> CPUs as offline, gets called before kdump is triggered. As a result,
> kdump routines fail to save other CPUs' registers. To fix this, kdump
> friendly crash_smp_send_stop() function was introduced with kernel
> commit 0ee59413c967 ("x86/panic: replace smp_send_stop() with kdump
> friendly version in panic path"). Override this kdump friendly weak
> function to handle crash_kexec_post_notifiers option appropriately
> on powerpc.
> 
> [...]

Applied to powerpc/next.

[1/2] powerpc: handle kdump appropriately with crash_kexec_post_notifiers option
      https://git.kernel.org/powerpc/c/219572d2fc4135b5ce65c735d881787d48b10e71
[2/2] ppc64/fadump: fix inaccurate CPU state info in vmcore generated with panic
      https://git.kernel.org/powerpc/c/06e629c25daa519be620a8c17359ae8fc7a2e903

cheers