From: Gary Hade Date: Mon, 19 Jan 2009 21:46:41 +0000 (-0800) Subject: x86: remove kernel_physical_mapping_init() from init section X-Git-Tag: v2.6.29-rc3~42^2~15 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f5495506c3c1300d249d403c36f92de71920dbeb;p=pandora-kernel.git x86: remove kernel_physical_mapping_init() from init section Impact: fix crash with memory hotplug enabled kernel_physical_mapping_init() is called during memory hotplug so it does not belong in the init section. If the kernel is built with CONFIG_DEBUG_SECTION_MISMATCH=y on the make command line, arch/x86/mm/init_64.c is compiled with the -fno-inline-functions-called-once gcc option defeating inlining of kernel_physical_mapping_init() within init_memory_mapping(). When kernel_physical_mapping_init() is not inlined it is placed in the .init.text section according to the __init in it's current declaration. A later call to kernel_physical_mapping_init() during a memory hotplug operation encounters an int3 trap because the .init.text section memory has been freed. This patch eliminates the crash caused by the int3 trap by moving the non-inlined kernel_physical_mapping_init() from .init.text to .meminit.text. Signed-off-by: Gary Hade Signed-off-by: Ingo Molnar --- Reading git-diff-tree failed