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 <garyhade@us.ibm.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
parent
bfa318ad52
commit
f5495506c3
|
@ -596,7 +596,7 @@ static void __init init_gbpages(void)
|
|||
direct_gbpages = 0;
|
||||
}
|
||||
|
||||
static unsigned long __init kernel_physical_mapping_init(unsigned long start,
|
||||
static unsigned long __meminit kernel_physical_mapping_init(unsigned long start,
|
||||
unsigned long end,
|
||||
unsigned long page_size_mask)
|
||||
{
|
||||
|
|
Loading…
Reference in New Issue