linux/arch/x86/mm
Gary Hade f5495506c3 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>
2009-01-20 00:31:43 +01:00
..
dump_pagetables.c x86: another user of PTE_FLAGS_MASK 2008-08-20 12:38:41 +02:00
extable.c
fault.c x86: avoid theoretical vmalloc fault loop 2009-01-12 19:24:21 +01:00
gup.c x86: two trivial sparse annotations 2008-10-29 08:02:28 +01:00
highmem_32.c Export kmap_atomic_pfn for DRM-GEM. 2008-10-18 07:10:12 +10:00
hugetlbpage.c x86: add hugepagesz option on 64-bit 2008-07-24 10:47:19 -07:00
init_32.c x86: fix assumed to be contiguous leaf page tables for kmap_atomic region (take 2) 2009-01-16 13:47:04 +01:00
init_64.c x86: remove kernel_physical_mapping_init() from init section 2009-01-20 00:31:43 +01:00
iomap_32.c x86: add iomap_atomic*()/iounmap_atomic() on 32-bit using fixmaps 2008-10-31 10:12:38 +01:00
ioremap.c x86: fix assumed to be contiguous leaf page tables for kmap_atomic region (take 2) 2009-01-16 13:47:04 +01:00
k8topology_64.c x86: k8 numa register active regions later 2009-01-06 13:21:21 +01:00
kmmio.c - fix mmioftrace + rcu merge interaction 2008-05-25 09:51:43 +02:00
Makefile Merge branches 'tracing/ftrace', 'tracing/fastboot', 'tracing/nmisafe' and 'tracing/urgent' into tracing/core 2008-11-08 09:34:35 +01:00
memtest.c x86: memtest fix use of reserve_early() 2008-10-22 17:08:06 +02:00
mmap.c
mmio-mod.c mmiotrace: remove left-over marker cruft 2008-10-14 10:37:17 +02:00
numa_32.c trivial: replace last usages of __FUNCTION__ in kernel 2009-01-07 15:48:54 -08:00
numa_64.c x86: prepare for cpumask iterators to only go to nr_cpu_ids 2008-12-16 17:40:58 -08:00
pageattr-test.c x86: make sure the CPA test code's use of _PAGE_UNUSED1 is obvious 2008-09-05 17:09:57 +02:00
pageattr.c x86: align DirectMap in /proc/meminfo 2008-11-06 15:27:37 +01:00
pat.c x86, pat: fix reserve_memtype() for legacy 1MB range 2009-01-14 20:14:45 +01:00
pf_in.c x86: fix mmiotrace 8-bit register decoding 2008-10-14 10:33:50 +02:00
pf_in.h
pgtable_32.c i386: vmalloc size fix 2008-08-21 10:13:21 +02:00
pgtable.c x86: pgd_{c,d}tor() cleanup 2008-09-06 19:47:09 +02:00
srat_32.c x86: don't call e820_regiter_active_regions if out of range on node 2008-08-14 11:35:52 +02:00
srat_64.c x86: prepare for cpumask iterators to only go to nr_cpu_ids 2008-12-16 17:40:58 -08:00
testmmiotrace.c x86 mmiotrace: implement mmiotrace_printk() 2008-10-14 10:37:11 +02:00