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855c743a27
linux-next/arch/x86/mm
History
Stanislaw Gruszka 855c743a27 x86/mm: Initialize high mem before free_all_bootmem() 
Patch fixes a boot crash with pagealloc debugging enabled:

  Initializing HighMem for node 0 (000377fe:0003fff0)
  BUG: unable to handle kernel paging request at f6fefe80
  IP: [<c1621ab5>] find_range_array+0x5e/0x69
  [...]
  Call Trace:
   [<c1622064>] __get_free_all_memory_range+0x39/0xb4
   [<c1620dd0>] add_highpages_with_active_regions+0x18/0x9b
   [<c1621a2e>] set_highmem_pages_init+0x70/0x90
   [<c162122b>] mem_init+0x50/0x21b
   [<c16155bd>] start_kernel+0x1bf/0x31c
   [<c1615065>] i386_start_kernel+0x65/0x67

The crash happens when memblock wants to allocate big area for
temporary "struct range" array and reuses pages from top of low
memory, which were already passed to the buddy allocator.

Reported-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Cc: linux-mm@kvack.org
Cc: Mel Gorman <mgorman@suse.de>
Link: http://lkml.kernel.org/r/20111206080833.GB3105@redhat.com
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2011-12-06 09:23:53 +01:00
..
kmemcheck x86: Swap save_stack_trace_regs parameters 2011-06-14 22:48:51 -04:00
amdtopology.c x86, NUMA: Enable CONFIG_AMD_NUMA on 32bit too 2011-05-02 17:24:48 +02:00
dump_pagetables.c x86, mm: Create symbolic index into address_markers array 2010-07-20 16:56:19 -07:00
extable.c x86, 64-bit: Move K8 B step iret fixup to fault entry asm 2009-10-12 18:29:46 +02:00
fault.c Merge branch 'x86-vdso-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2011-10-28 05:46:02 -07:00
gup.c thp: share get_huge_page_tail() 2011-11-02 16:06:58 -07:00
highmem_32.c mm: fix race in kunmap_atomic() 2010-10-27 18:03:05 -07:00
hugetlbpage.c mm: Convert i_mmap_lock to a mutex 2011-05-25 08:39:18 -07:00
init_32.c x86/mm: Initialize high mem before free_all_bootmem() 2011-12-06 09:23:53 +01:00
init_64.c x86, mm: Unify zone_sizes_init() 2011-11-11 10:22:55 +01:00
init.c x86, mm: Unify zone_sizes_init() 2011-11-11 10:22:55 +01:00
iomap_32.c mm: fix race in kunmap_atomic() 2010-10-27 18:03:05 -07:00
ioremap.c ioremap: Delay sanity check until after a successful mapping 2011-04-29 08:02:47 +02:00
kmmio.c x86, kmmio/mmiotrace: Fix double free of kmmio_fault_pages 2010-06-18 11:30:09 +02:00
Makefile x86, NUMA: Rename amdtopology_64.c to amdtopology.c 2011-05-02 17:24:48 +02:00
memblock.c x86, efi: Do not reserve boot services regions within reserved areas 2011-06-18 22:48:49 +02:00
memtest.c x86, memblock: Replace e820_/_early string with memblock_ 2010-08-27 11:13:47 -07:00
mmap.c x86: Fix mmap random address range 2011-12-05 17:07:23 +01:00
mmio-mod.c Merge branch 'master' into for-next 2011-09-15 15:08:18 +02:00
numa_32.c x86, mm: s/PAGES_PER_ELEMENT/PAGES_PER_SECTION/ 2011-07-12 21:58:11 -07:00
numa_64.c x86, NUMA: Move NUMA init logic from numa_64.c to numa.c 2011-05-02 14:18:53 +02:00
numa_emulation.c x86, NUMA: Enable emulation on 32bit too 2011-05-02 17:24:48 +02:00
numa_internal.h x86, NUMA: Initialize and use remap allocator from setup_node_bootmem() 2011-05-02 14:18:54 +02:00
numa.c x86, numa: Implement pfn -> nid mapping granularity check 2011-07-12 21:58:29 -07:00
pageattr-test.c x86: Convert vmalloc()+memset() to vzalloc() 2011-05-28 19:53:57 +02:00
pageattr.c x86: Fix common misspellings 2011-03-18 10:39:30 +01:00
pat_internal.h x86, pat: Fix memory leak in free_memtype 2010-05-26 11:26:04 -07:00
pat_rbtree.c rbtree: Undo augmented trees performance damage and regression 2010-07-05 14:43:50 +02:00
pat.c Merge branch 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2010-08-06 10:17:52 -07:00
pf_in.c x86: Eliminate various 'set but not used' warnings 2011-05-21 19:10:33 +02:00
pf_in.h x86 mmiotrace: move files into arch/x86/mm/. 2008-05-24 11:25:37 +02:00
pgtable_32.c x86: remove last traces of quicklist usage 2010-05-24 13:33:31 -07:00
pgtable.c x86: Flush TLB if PGD entry is changed in i386 PAE mode 2011-03-18 11:44:01 +01:00
physaddr.c x86: split __phys_addr out into separate file 2009-09-10 11:48:55 -07:00
physaddr.h x86: split __phys_addr out into separate file 2009-09-10 11:48:55 -07:00
setup_nx.c x86, cpu: Only CPU features determine NX capabilities 2010-11-10 15:43:15 -08:00
srat.c x86, NUMA: make srat.c 32bit safe 2011-05-02 14:18:52 +02:00
testmmiotrace.c x86, kmmio/mmiotrace: Fix double free of kmmio_fault_pages 2010-06-18 11:30:09 +02:00
tlb.c x86, tlb, UV: Do small micro-optimization for native_flush_tlb_others() 2011-03-15 08:30:34 +01:00