(subset) [PATCH 00/30] The panic notifiers refactor

Michael Ellerman patch-notifications at ellerman.id.au
Tue May 24 21:08:34 AEST 2022


On Wed, 27 Apr 2022 19:48:54 -0300, Guilherme G. Piccoli wrote:
> Hey folks, this is an attempt to improve/refactor the dated panic notifiers
> infrastructure. This is strongly based in a suggestion made by Pter Mladek [0]
> some time ago, and it's finally ready. Below I'll detail the patch ordering,
> testing made, etc.
> First, a bit about the reason behind this.
> 
> The panic notifiers list is an infrastructure that allows callbacks to execute
> during panic time. Happens that anybody can add functions there, no ordering
> is enforced (by default) and the decision to execute or not such notifiers
> before kdump may lead to high risk of failure in crash scenarios - default is
> not to execute any of them. There is a parameter acting as a switch for that.
> But some architectures require some notifiers, so..it's messy.
> 
> [...]

Patch 8 applied to powerpc/next.

[08/30] powerpc/setup: Refactor/untangle panic notifiers
        https://git.kernel.org/powerpc/c/e2aa34ce80a26d24a0333da9402d533885f239c9

cheers


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