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Message-ID: <20070316113801.GC5642@in.ibm.com> Date: Fri, 16 Mar 2007 17:08:01 +0530 From: Vivek Goyal <vgoyal@...ibm.com> To: Magnus Damm <magnus.damm@...il.com> Cc: Ian Campbell <Ian.Campbell@...source.com>, Horms <horms@...ge.net.au>, fastboot@...ts.osdl.org, linux-kernel@...r.kernel.org Subject: Re: [Fastboot] [PATCH 1/1] Allow i386 crash kernels to handle x86_64 dumps On Fri, Mar 16, 2007 at 07:05:30PM +0900, Magnus Damm wrote: > On 3/16/07, Vivek Goyal <vgoyal@...ibm.com> wrote: > >Got a question. When running 32bit dom0 on 64bit hypervisor, which > >kexec-tools elf loader will kick in? 32bit or 64bit? Looks like in this > >case 64bit one. But shouldn't it be 32bit as 32bit OS is running and we > >must be using the kexec-tools binary compiled for 32bit OS? And if 32bit > >loader kicks in we will not be passing any acpi parameters. > > There is no check to see if the hypervisor is 32 or 64 bits present > today. So the 32-bit version of kexec-tools will support loading > images like any other 32-bit kexec-tools. > If that is the case then in prepared elf headers, machine type should be EM_386 or similar and not EM_X86_64 and Ian shouldn't have run into the problem at all with vmcore. Am I missing something? Thanks Vivek - 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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