From: Pavel Machek <pavel@ucw.cz>
To: Bernhard Walle <bwalle@suse.de>
Cc: kexec@lists.infradead.org, linux-kernel@vger.kernel.org,
linux-arch@vger.kernel.org
Subject: Re: [patch 7/7] Add documentation for extended crashkernel syntax
Date: Tue, 18 Sep 2007 17:21:08 +0000 [thread overview]
Message-ID: <20070918172108.GD5966@ucw.cz> (raw)
In-Reply-To: <20070913161430.686458007@strauss.suse.de>
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
next prev parent reply other threads:[~2007-09-22 6:45 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-09-13 16:14 [patch 0/7] Add extended crashkernel command line syntax Bernhard Walle
2007-09-13 16:14 ` [patch 1/7] Extended crashkernel command line Bernhard Walle
2007-09-19 22:32 ` Andrew Morton
2007-09-13 16:14 ` [patch 2/7] Use extended crashkernel command line on i386 Bernhard Walle
2007-09-18 4:36 ` Vivek Goyal
2007-09-13 16:14 ` [patch 3/7] Use extended crashkernel command line on x86_64 Bernhard Walle
2007-09-19 22:33 ` Andrew Morton
2007-09-20 17:19 ` Bernhard Walle
2007-09-13 16:14 ` [patch 4/7] Use extended crashkernel command line on ia64 Bernhard Walle
2007-09-13 16:14 ` [patch 5/7] Use extended crashkernel command line on ppc64 Bernhard Walle
2007-09-13 16:14 ` [patch 6/7] Use extended crashkernel command line on sh Bernhard Walle
2007-09-14 3:30 ` Paul Mundt
2007-09-13 16:14 ` [patch 7/7] Add documentation for extended crashkernel syntax Bernhard Walle
2007-09-18 17:21 ` Pavel Machek [this message]
2007-09-22 7:06 ` Bernhard Walle
-- strict thread matches above, loose matches on Subject: below --
2007-09-20 17:18 [patch 0/7] Add extended crashkernel command line syntax Bernhard Walle
2007-09-20 17:18 ` [patch 7/7] Add documentation for extended crashkernel syntax Bernhard Walle
2007-09-25 18:22 [patch 0/7] Add extended crashkernel command line syntax Bernhard Walle
2007-09-25 18:23 ` [patch 7/7] Add documentation for extended crashkernel syntax Bernhard Walle
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