linux-hardening - RE: [RFC][PATCH v3 00/16] Introduce kmemdump

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Message-ID: <SJ1PR11MB6083477193D9EF7CD10DE9EAFC14A@SJ1PR11MB6083.namprd11.prod.outlook.com>
Date: Tue, 16 Sep 2025 15:25:13 +0000
From: "Luck, Tony" <tony.luck@...el.com>
To: Mukesh Ojha <mukesh.ojha@....qualcomm.com>, Eugen Hristev
	<eugen.hristev@...aro.org>
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Subject: RE: [RFC][PATCH v3 00/16] Introduce kmemdump

> +Adding some pstore experts to bring this to their attention if this can
> be followed and if they find it useful.

Depends on the capabilities of the pstore backend. Some of them
(ERST, EFI variables) have tiny capacity (just a few kilobytes) so
well suited for saving the tail of the console log, but if the user specified
more than a couple of pages to be dumped using this mechanism, that
would exceed the persistent store capacity.

-Tony