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[PATCH 1/1] Allow i386 crash kernels to handle x86_64 dumps

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From: Ian Campbell
Subject: [PATCH 1/1] Allow i386 crash kernels to handle x86_64 dumps
Date: Wednesday, March 14, 2007 - 10:00 am

The specific case I am encountering is kdump under Xen with a 64 bit
hypervisor and 32 bit kernel/userspace. The dump created is a 64 bit due
to the hypervisor but the dump kernel is 32 bit to match the domain 0
kernel.

It's possibly less likely to be useful in a purely native scenario but I
see no reason to disallow it.

Signed-off-by: Ian Campbell <ian.campbell@xensource.com>

--- pristine-linux-2.6.18/include/asm-i386/elf.h	2006-09-20 04:42:06.000000000 +0100
+++ linux-2.6.18-xen/include/asm-i386/elf.h	2007-03-14 16:42:30.000000000 +0000
@@ -36,7 +36,7 @@
  * This is used to ensure we don't load something for the wrong architecture.
  */
 #define elf_check_arch(x) \
-	(((x)->e_machine == EM_386) || ((x)->e_machine == EM_486))
+	(((x)->e_machine == EM_386) || ((x)->e_machine == EM_486) || ((x)->e_machine == EM_X86_64))
 
 /*
  * These are used to set parameters in the core dumps.


-
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Messages in current thread:
[PATCH 1/1] Allow i386 crash kernels to handle x86_64 dumps, Ian Campbell, (Wed Mar 14, 10:00 am)
Re: [PATCH 1/1] Allow i386 crash kernels to handle x86_64 ..., Horms, (Wed Mar 14, 6:46 pm)
Re: [PATCH 1/1] Allow i386 crash kernels to handle x86_64 ..., Vivek Goyal, (Wed Mar 14, 9:55 pm)
Re: [PATCH 1/1] Allow i386 crash kernels to handle x86_64 ..., Horms, (Wed Mar 14, 10:07 pm)
Re: [PATCH 1/1] Allow i386 crash kernels to handle x86_64 ..., Vivek Goyal, (Wed Mar 14, 10:47 pm)
Re: [PATCH 1/1] Allow i386 crash kernels to handle x86_64 ..., Horms, (Thu Mar 15, 1:00 am)
Re: [PATCH 1/1] Allow i386 crash kernels to handle x86_64 ..., Ian Campbell, (Thu Mar 15, 5:22 am)
Re: [PATCH 1/1] Allow i386 crash kernels to handle x86_64 ..., Vivek Goyal, (Thu Mar 15, 6:26 am)
Re: [PATCH 1/1] Allow i386 crash kernels to handle x86_64 ..., Ian Campbell, (Thu Mar 15, 6:42 am)
Re: [PATCH 1/1] Allow i386 crash kernels to handle x86_64 ..., Horms, (Thu Mar 15, 4:46 pm)
Re: [PATCH 1/1] Allow i386 crash kernels to handle x86_64 ..., Horms, (Thu Mar 15, 4:48 pm)
Re: [PATCH 1/1] Allow i386 crash kernels to handle x86_64 ..., Vivek Goyal, (Thu Mar 15, 7:27 pm)
Re: [Fastboot] [PATCH 1/1] Allow i386 crash kernels to han ..., Magnus Damm, (Thu Mar 15, 7:40 pm)
Re: [PATCH 1/1] Allow i386 crash kernels to handle x86_64 ..., Vivek Goyal, (Thu Mar 15, 7:42 pm)
Re: [Fastboot] [PATCH 1/1] Allow i386 crash kernels to han ..., Vivek Goyal, (Thu Mar 15, 8:22 pm)
Re: [Fastboot] [PATCH 1/1] Allow i386 crash kernels to han ..., Horms, (Fri Mar 16, 12:10 am)
Re: [PATCH 1/1] Allow i386 crash kernels to handle x86_64 ..., Ian Campbell, (Fri Mar 16, 12:17 am)
Re: [Fastboot] [PATCH 1/1] Allow i386 crash kernels to han ..., Ian Campbell, (Fri Mar 16, 12:28 am)
Re: [PATCH 1/1] Allow i386 crash kernels to handle x86_64 ..., Horms, (Fri Mar 16, 12:30 am)
Re: [PATCH 1/1] Allow i386 crash kernels to handle x86_64 ..., Ian Campbell, (Fri Mar 16, 12:31 am)
Re: [Fastboot] [PATCH 1/1] Allow i386 crash kernels to han ..., Magnus Damm, (Fri Mar 16, 12:50 am)
Re: [Fastboot] [PATCH 1/1] Allow i386 crash kernels to han ..., Magnus Damm, (Fri Mar 16, 12:59 am)
Re: [Fastboot] [PATCH 1/1] Allow i386 crash kernels to han ..., Ian Campbell, (Fri Mar 16, 1:50 am)
Re: [Fastboot] [PATCH 1/1] Allow i386 crash kernels to han ..., Magnus Damm, (Fri Mar 16, 2:20 am)
Re: [Fastboot] [PATCH 1/1] Allow i386 crash kernels to han ..., Vivek Goyal, (Fri Mar 16, 2:26 am)
Re: [Fastboot] [PATCH 1/1] Allow i386 crash kernels to han ..., Vivek Goyal, (Fri Mar 16, 2:35 am)
Re: [Fastboot] [PATCH 1/1] Allow i386 crash kernels to han ..., Magnus Damm, (Fri Mar 16, 3:05 am)
Re: [Fastboot] [PATCH 1/1] Allow i386 crash kernels to han ..., Vivek Goyal, (Fri Mar 16, 4:38 am)
Re: [Fastboot] [PATCH 1/1] Allow i386 crash kernels to han ..., Ian Campbell, (Fri Mar 16, 4:40 am)
Re: [Fastboot] [PATCH 1/1] Allow i386 crash kernels to han ..., Vivek Goyal, (Fri Mar 16, 5:25 am)
Re: [Fastboot] [PATCH 1/1] Allow i386 crash kernels to han ..., Vivek Goyal, (Fri Mar 16, 5:31 am)