linux-sg2042/arch/x86/mm
Rafael J. Wysocki 97a70e548b x86, hibernate: fix breakage on x86_32 with CONFIG_NUMA set
Impact: fix crash during hibernation on 32-bit NUMA

The NUMA code on x86_32 creates special memory mapping that allows
each node's pgdat to be located in this node's memory.  For this
purpose it allocates a memory area at the end of each node's memory
and maps this area so that it is accessible with virtual addresses
belonging to low memory.  As a result, if there is high memory,
these NUMA-allocated areas are physically located in high memory,
although they are mapped to low memory addresses.

Our hibernation code does not take that into account and for this
reason hibernation fails on all x86_32 systems with CONFIG_NUMA=y and
with high memory present.  Fix this by adding a special mapping for
the NUMA-allocated memory areas to the temporary page tables created
during the last phase of resume.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-11-12 23:28:51 +01:00
..
Makefile x86: add iomap_atomic*()/iounmap_atomic() on 32-bit using fixmaps 2008-10-31 10:12:38 +01:00
dump_pagetables.c x86: another user of PTE_FLAGS_MASK 2008-08-20 12:38:41 +02:00
extable.c x86: unify extable_{32|64}.c 2008-01-30 13:31:41 +01:00
fault.c Merge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2008-10-16 15:08:45 -07:00
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: add iomap_atomic*()/iounmap_atomic() on 32-bit using fixmaps 2008-10-31 10:12:38 +01:00
init_64.c x86: remove debug code from arch_add_memory() 2008-10-29 09:29:22 +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: start annotating early ioremap pointers with __iomem 2008-10-29 08:05:14 +01:00
k8topology_64.c x86: remove end_pfn in 64bit 2008-07-08 13:10:38 +02:00
kmmio.c - fix mmioftrace + rcu merge interaction 2008-05-25 09:51:43 +02:00
memtest.c x86: memtest fix use of reserve_early() 2008-10-22 17:08:06 +02:00
mmap.c x86: unify mmap_{32|64}.c 2008-01-30 13:31:10 +01:00
mmio-mod.c mmiotrace: remove left-over marker cruft 2008-10-14 10:37:17 +02:00
numa_32.c x86, hibernate: fix breakage on x86_32 with CONFIG_NUMA set 2008-11-12 23:28:51 +01:00
numa_64.c x86: convert numa_64.c from round_up to roundup 2008-07-26 15:39:21 +02:00
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: fix /dev/mem mmap breakage when PAT is disabled 2008-10-30 23:54:41 +01:00
pf_in.c x86: fix mmiotrace 8-bit register decoding 2008-10-14 10:33:50 +02:00
pf_in.h x86 mmiotrace: move files into arch/x86/mm/. 2008-05-24 11:25:37 +02:00
pgtable.c x86: pgd_{c,d}tor() cleanup 2008-09-06 19:47:09 +02:00
pgtable_32.c i386: vmalloc size fix 2008-08-21 10:13:21 +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, uv: add early detection of UV system types 2008-10-13 10:21:51 +02:00
testmmiotrace.c x86 mmiotrace: implement mmiotrace_printk() 2008-10-14 10:37:11 +02:00