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Date: Fri, 21 Aug 2009 02:54:54 -0400 From: Amerigo Wang <amwang@...hat.com> To: linux-kernel@...r.kernel.org Cc: tony.luck@...el.com, linux-ia64@...r.kernel.org, Neil Horman <nhorman@...hat.com>, "Eric W. Biederman" <ebiederm@...ssion.com>, kamezawa.hiroyu@...fujitsu.com, Andi Kleen <andi@...stfloor.org>, Amerigo Wang <amwang@...hat.com>, akpm@...ux-foundation.org, bernhard.walle@....de, Fenghua Yu <fenghua.yu@...el.com>, Ingo Molnar <mingo@...e.hu>, Anton Vorontsov <avorontsov@...mvista.com> Subject: [Patch 4/8] ia64: add CONFIG_KEXEC_AUTO_RESERVE Introduce a new config option KEXEC_AUTO_RESERVE for ia64. Signed-off-by: WANG Cong <amwang@...hat.com> Acked-by: Neil Horman <nhorman@...driver.com> --- Index: linux-2.6/arch/ia64/Kconfig =================================================================== --- linux-2.6.orig/arch/ia64/Kconfig +++ linux-2.6/arch/ia64/Kconfig @@ -582,6 +582,20 @@ config KEXEC support. As of this writing the exact hardware interface is strongly in flux, so no good recommendation can be made. +config KEXEC_AUTO_RESERVE + bool "automatically reserve memory for kexec kernel" + depends on KEXEC + default y + ---help--- + Automatically reserve memory for a kexec kernel, so that you don't + need to specify numbers for the "crashkernel=X@Y" boot option, + instead you can use "crashkernel=auto". To make this work, you need + to have more than 4G memory. + + The reserved memory size is different depends on how much memory + you actually have. Please check Documentation/kdump/kdump.txt. + If you doubt, say N. + config CRASH_DUMP bool "kernel crash dumps" depends on IA64_MCA_RECOVERY && !IA64_HP_SIM && (!SMP || HOTPLUG_CPU) -- 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/
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