linux-kernel - Re: [patch 7/7] Add documentation for extended crashkernel syntax

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Tue, 18 Sep 2007 17:21:08 +0000
From:	Pavel Machek <pavel@....cz>
To:	Bernhard Walle <bwalle@...e.de>
Cc:	kexec@...ts.infradead.org, linux-kernel@...r.kernel.org,
	linux-arch@...r.kernel.org
Subject: Re: [patch 7/7] Add documentation for extended crashkernel syntax

Hi!

> This adds the documentation for the extended crashkernel syntax into
> Documentation/kdump/kdump.txt.

Should you also update kernel-parameters.txt?

> +For example:
> +
> +    crashkernel=512M-2G:64M,2G-:128M
> +
> +This would mean:
> +
> +    1) if the RAM is smaller than 512M, then don't reserve anything
> +       (this is the "rescue" case)
> +    2) if the RAM size is between 512M and 2G, then reserve 64M
> +    3) if the RAM size is larger than 2G, then reserve 128M

Why is this useful? I mean... if 64M is enough to save a dump, why use
128M? ...or does the required size somehow scale with memory in
machine? (pagetables?)
						Pavel

-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/