From: Bernhard Walle <bwalle@suse.de>
To: kexec@lists.infradead.org
Cc: linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org
Subject: [patch 0/5] Add extended crashkernel command line syntax
Date: Sun, 09 Sep 2007 10:39:14 +0200 [thread overview]
Message-ID: <20070909083914.065380136@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 and IA64. However, if
the patch is accepted, I can also add all other architectures that support
Kdump (when my grepping was correct, this is only PPC64 and SH in addition).
The "simple" syntax is of course still supported.
Signed-off-by: Bernhard Walle <bwalle@suse.de>
--
next reply other threads:[~2007-09-09 8:39 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-09-09 8:39 Bernhard Walle [this message]
2007-09-09 8:39 ` [patch 1/5] Extended crashkernel command line Bernhard Walle
2007-09-11 6:15 ` Vivek Goyal
2007-09-11 10:01 ` Bernhard Walle
2007-09-12 11:23 ` Vivek Goyal
2007-09-12 11:35 ` Bernhard Walle
2007-09-11 13:14 ` Olaf Dabrunz
2007-09-11 15:32 ` Lombard, David N
2007-09-11 17:21 ` Bernhard Walle
2007-09-09 8:39 ` [patch 2/5] Use extended crashkernel command line on i386 Bernhard Walle
2007-09-09 8:39 ` [patch 3/5] Use extended crashkernel command line on x86_64 Bernhard Walle
2007-09-09 17:27 ` [discuss] " Yinghai Lu
2007-09-09 18:52 ` Bernhard Walle
2007-09-09 21:06 ` Eric W. Biederman
2007-09-11 5:14 ` Vivek Goyal
2007-09-11 10:01 ` Bernhard Walle
2007-09-09 8:39 ` [patch 4/5] Use extended crashkernel command line on IA64 Bernhard Walle
2007-09-09 13:01 ` Matthew Wilcox
2007-09-09 19:08 ` Bernhard Walle
2007-09-09 8:39 ` [patch 5/5] Add documentation for extended crashkernel syntax Bernhard Walle
2007-09-11 6:09 ` [patch 0/5] Add extended crashkernel command line syntax Vivek Goyal
2007-09-13 15:02 ` Bernhard Walle
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