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From: "Luck, Tony" <tony.luck@intel.com>
To: Mukesh Ojha <mukesh.ojha@oss.qualcomm.com>,
	Eugen Hristev <eugen.hristev@linaro.org>
Cc: "kees@kernel.org" <kees@kernel.org>,
	"gpiccoli@igalia.com" <gpiccoli@igalia.com>,
	"linux-arm-msm@vger.kernel.org" <linux-arm-msm@vger.kernel.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	"linux-mm@kvack.org" <linux-mm@kvack.org>,
	"tglx@linutronix.de" <tglx@linutronix.de>,
	"andersson@kernel.org" <andersson@kernel.org>,
	"pmladek@suse.com" <pmladek@suse.com>,
	"rdunlap@infradead.org" <rdunlap@infradead.org>,
	"corbet@lwn.net" <corbet@lwn.net>,
	"david@redhat.com" <david@redhat.com>,
	"mhocko@suse.com" <mhocko@suse.com>,
	"tudor.ambarus@linaro.org" <tudor.ambarus@linaro.org>,
	"linux-arm-kernel@lists.infradead.org"
	<linux-arm-kernel@lists.infradead.org>,
	"linux-hardening@vger.kernel.org"
	<linux-hardening@vger.kernel.org>,
	"jonechou@google.com" <jonechou@google.com>,
	"rostedt@goodmis.org" <rostedt@goodmis.org>,
	"linux-doc@vger.kernel.org" <linux-doc@vger.kernel.org>,
	"devicetree@vger.kernel.org" <devicetree@vger.kernel.org>
Subject: RE: [RFC][PATCH v3 00/16] Introduce kmemdump
Date: Tue, 16 Sep 2025 15:25:13 +0000	[thread overview]
Message-ID: <SJ1PR11MB6083477193D9EF7CD10DE9EAFC14A@SJ1PR11MB6083.namprd11.prod.outlook.com> (raw)
In-Reply-To: <20250916074929.xiait75tbnbyjt4c@hu-mojha-hyd.qualcomm.com>

> +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


  reply	other threads:[~2025-09-16 15:25 UTC|newest]

Thread overview: 42+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-09-12 15:08 Eugen Hristev
2025-09-12 15:08 ` [RFC][PATCH v3 01/16] kmemdump: " Eugen Hristev
2025-09-12 15:08 ` [RFC][PATCH v3 02/16] Documentation: Add kmemdump Eugen Hristev
2025-09-12 15:08 ` [RFC][PATCH v3 03/16] kmemdump: Add coreimage ELF layer Eugen Hristev
2025-09-12 15:08 ` [RFC][PATCH v3 04/16] Documentation: kmemdump: Add section for coreimage ELF Eugen Hristev
2025-09-12 15:08 ` [RFC][PATCH v3 05/16] kernel/vmcore_info: Register dynamic information into Kmemdump Eugen Hristev
2025-09-12 15:08 ` [RFC][PATCH v3 06/16] kmemdump: Introduce qcom-minidump backend driver Eugen Hristev
2025-09-12 15:08 ` [RFC][PATCH v3 07/16] soc: qcom: smem: Add minidump device Eugen Hristev
2025-09-12 15:08 ` [RFC][PATCH v3 08/16] init/version: Add banner_len to save banner length Eugen Hristev
2025-09-12 15:08 ` [RFC][PATCH v3 09/16] genirq/irqdesc: Have nr_irqs as non-static Eugen Hristev
2025-09-16 21:10   ` Thomas Gleixner
2025-09-16 21:16     ` Thomas Gleixner
2025-09-17  5:43       ` Eugen Hristev
2025-09-17  7:16         ` David Hildenbrand
2025-09-17 14:10           ` Thomas Gleixner
2025-09-17 14:26             ` Eugen Hristev
2025-09-17 14:46             ` David Hildenbrand
2025-09-17 15:02               ` Eugen Hristev
2025-09-17 15:18                 ` David Hildenbrand
2025-09-17 15:32                   ` Eugen Hristev
2025-09-17 15:44                     ` David Hildenbrand
2025-09-17 18:42                   ` Thomas Gleixner
2025-09-17 19:03                     ` David Hildenbrand
2025-09-18  8:23                       ` Thomas Gleixner
2025-09-18 13:53                         ` Eugen Hristev
2025-09-18 18:43                           ` Randy Dunlap
2025-09-25 20:11                           ` David Hildenbrand
2025-09-12 15:08 ` [RFC][PATCH v3 10/16] panic: Have tainted_mask " Eugen Hristev
2025-09-12 15:08 ` [RFC][PATCH v3 11/16] mm/swapfile: Have nr_swapfiles " Eugen Hristev
2025-09-12 15:08 ` [RFC][PATCH v3 12/16] printk: Register information into Kmemdump Eugen Hristev
2025-09-12 15:08 ` [RFC][PATCH v3 13/16] sched: Add sched_get_runqueues_area Eugen Hristev
2025-09-12 15:08 ` [RFC][PATCH v3 14/16] kernel/vmcoreinfo: Register kmemdump core image information Eugen Hristev
2025-09-12 15:08 ` [RFC][PATCH v3 15/16] kmemdump: Add Kinfo backend driver Eugen Hristev
2025-09-16  5:48   ` Alexey Klimov
2025-09-22 10:01   ` Tudor Ambarus
2025-09-12 15:08 ` [RFC][PATCH v3 16/16] dt-bindings: Add Google Kinfo Eugen Hristev
2025-09-14 11:56   ` Krzysztof Kozlowski
2025-09-12 15:56 ` [RFC][PATCH v3 00/16] Introduce kmemdump David Hildenbrand
2025-09-12 18:35   ` Eugen Hristev
2025-09-16  7:49 ` Mukesh Ojha
2025-09-16 15:25   ` Luck, Tony [this message]
2025-09-16 15:27     ` Eugen Hristev

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