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From: Bernhard Walle <bwalle@suse.de>
To: kexec@lists.infradead.org
Cc: linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org
Subject: [patch 0/7] Add extended crashkernel command line syntax
Date: Thu, 13 Sep 2007 18:14:28 +0200	[thread overview]
Message-ID: <20070913161428.343951643@strauss.suse.de> (raw)

This patch adds a extended crashkernel syntax that makes the value of reserved
system RAM dependent on the system RAM itself:

    crashkernel=<range1>:<size1>[,<range2>:<size2>,...][@offset]
    range=start-[end]

For example:

    crashkernel=512M-2G:64M,2G-:128M

The motivation comes from distributors that configure their crashkernel command
line automatically with some configuration tool (YaST, you know ;)). Of course
that tool knows the value of System RAM, but if the user removes RAM, then
the system becomes unbootable or at least unusable and error handling
is very difficult.

This series implements this change for i386, x86_64, ia64, ppc64 and sh. That
should be all platforms that support kdump in current mainline. I tested all
platforms except sh due to the lack of a sh processor.

The patch series is against 2.6.23-rc4-mm1.



Signed-off-by: Bernhard Walle <bwalle@suse.de>

-- 

             reply	other threads:[~2007-09-13 16:14 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-09-13 16:14 Bernhard Walle [this message]
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
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
2007-09-25 18:22 Bernhard Walle

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