Return-path: Received: from mail.suse.de ([195.135.220.2] helo=mx1.suse.de) by pentafluge.infradead.org with esmtps (Exim 4.63 #1 (Red Hat Linux)) id 1IUHoS-0006NG-HO for kexec@lists.infradead.org; Sun, 09 Sep 2007 09:06:39 +0100 Message-Id: <20070909080620.350255316@strauss.suse.de> References: <20070909080620.009772613@strauss.suse.de> Date: Sun, 09 Sep 2007 10:06:21 +0200 From: Bernhard Walle Subject: [patch 1/3] Express relocatability of kernel on x86_64 in documentation Content-Disposition: inline; filename=crashkernel-relocatable List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: kexec-bounces@lists.infradead.org Errors-To: kexec-bounces+dwmw2=infradead.org+dwmw2=infradead.org@lists.infradead.org To: kexec@lists.infradead.org Cc: discuss@x86-64.org, linux-kernel@vger.kernel.org This patch adapts the Documentation/kdump/kdump.txt file to express the fact that the x86_64 kernel is now also relocatable. This makes i386 and x86_64 now behave the same, simplifying the documentation. Signed-off-by: Bernhard Walle --- Documentation/kdump/kdump.txt | 35 ++++++----------------------------- 1 file changed, 6 insertions(+), 29 deletions(-) --- a/Documentation/kdump/kdump.txt +++ b/Documentation/kdump/kdump.txt @@ -159,16 +159,17 @@ Dump-capture kernel config options (Arch CONFIG_PROC_VMCORE=y (CONFIG_PROC_VMCORE is set by default when CONFIG_CRASH_DUMP is selected.) -Dump-capture kernel config options (Arch Dependent, i386) --------------------------------------------------------- -1) On x86, enable high memory support under "Processor type and +Dump-capture kernel config options (Arch Dependent, i386 and x86_64) +-------------------------------------------------------------------- + +1) On i386, enable high memory support under "Processor type and features": CONFIG_HIGHMEM64G=y or CONFIG_HIGHMEM4G -2) On x86 and x86_64, disable symmetric multi-processing support +2) On i386 and x86_64, disable symmetric multi-processing support under "Processor type and features": CONFIG_SMP=n @@ -203,28 +204,6 @@ Dump-capture kernel config options (Arch 5) Make and install the kernel and its modules. DO NOT add this kernel to the boot loader configuration files. -Dump-capture kernel config options (Arch Dependent, x86_64) ----------------------------------------------------------- -1) On x86 and x86_64, disable symmetric multi-processing support - under "Processor type and features": - - CONFIG_SMP=n - - (If CONFIG_SMP=y, then specify maxcpus=1 on the kernel command line - when loading the dump-capture kernel, see section "Load the Dump-capture - Kernel".) - -2) Use a suitable value for "Physical address where the kernel is - loaded" (under "Processor type and features"). This only appears when - "kernel crash dumps" is enabled. By default this value is 0x1000000 - (16MB). It should be the same as X in the "crashkernel=Y@X" boot - parameter. - - For x86_64, normally "CONFIG_PHYSICAL_START=0x1000000". - -3) Make and install the kernel and its modules. DO NOT add this kernel - to the boot loader configuration files. - Dump-capture kernel config options (Arch Dependent, ppc64) ---------------------------------------------------------- @@ -282,11 +261,9 @@ Based on the architecture and type of im can choose to load the uncompressed vmlinux or compressed bzImage/vmlinuz of dump-capture kernel. Following is the summary. -For i386: +For i386 and x86_64: - Use vmlinux if kernel is not relocatable. - Use bzImage/vmlinuz if kernel is relocatable. -For x86_64: - - Use vmlinux For ppc64: - Use vmlinux For ia64: -- _______________________________________________ kexec mailing list kexec@lists.infradead.org http://lists.infradead.org/mailman/listinfo/kexec