Yinghai Lu f1af98c762 memblock: Fix wraparound in find_region() ... When trying to find huge range for crashkernel, get [ 0.000000] ------------[ cut here ]------------ [ 0.000000] WARNING: at arch/x86/mm/memblock.c:248 memblock_x86_reserve_range+0x40/0x7a() [ 0.000000] Hardware name: Sun Fire x4800 [ 0.000000] memblock_x86_reserve_range: wrong range [0xffffffff37000000, 0x137000000) [ 0.000000] Modules linked in: [ 0.000000] Pid: 0, comm: swapper Not tainted 2.6.36-rc5-tip-yh-01876-g1cac214-dirty #59 [ 0.000000] Call Trace: [ 0.000000] [<ffffffff82816f7e>] ? memblock_x86_reserve_range+0x40/0x7a [ 0.000000] [<ffffffff81078c2d>] warn_slowpath_common+0x85/0x9e [ 0.000000] [<ffffffff81078d38>] warn_slowpath_fmt+0x6e/0x70 [ 0.000000] [<ffffffff8281e77c>] ? memblock_find_region+0x40/0x78 [ 0.000000] [<ffffffff8281eb1f>] ? memblock_find_base+0x9a/0xb9 [ 0.000000] [<ffffffff82816f7e>] memblock_x86_reserve_range+0x40/0x7a [ 0.000000] [<ffffffff8280452c>] setup_arch+0x99d/0xb2a [ 0.000000] [<ffffffff810a3e02>] ? trace_hardirqs_off+0xd/0xf [ 0.000000] [<ffffffff81cec7d8>] ? _raw_spin_unlock_irqrestore+0x3d/0x4c [ 0.000000] [<ffffffff827ffcec>] start_kernel+0xde/0x3f1 [ 0.000000] [<ffffffff827ff2d4>] x86_64_start_reservations+0xa0/0xa4 [ 0.000000] [<ffffffff827ff3de>] x86_64_start_kernel+0x106/0x10d [ 0.000000] ---[ end trace a7919e7f17c0a725 ]--- [ 0.000000] Reserving 8192MB of memory at 17592186041200MB for crashkernel (System RAM: 526336MB) This is caused by a wraparound in the test due to size > end; explicitly check for this condition and fail. Signed-off-by: Yinghai Lu <yinghai@kernel.org> LKML-Reference: <4CAA4DD3.1080401@kernel.org> Signed-off-by: H. Peter Anvin <hpa@zytor.com>		2010-10-05 21:45:35 -07:00
..
backing-dev.c	writeback: avoid unnecessary calculation of bdi dirty thresholds	2010-08-12 08:43:29 -07:00
bootmem.c	x86, memblock: Replace e820_/_early string with memblock_	2010-08-27 11:13:47 -07:00
bounce.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
compaction.c	mm: compaction: add a tunable that decides when memory should be compacted and when it should be reclaimed	2010-05-25 08:06:59 -07:00
debug-pagealloc.c	generic debug pagealloc	2009-04-01 08:59:13 -07:00
dmapool.c	dmapools: protect page_list walk in show_pools()	2009-06-30 18:56:00 -07:00
fadvise.c	readahead: introduce FMODE_RANDOM for POSIX_FADV_RANDOM	2010-03-06 11:26:25 -08:00
failslab.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
filemap_xip.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
filemap.c	gcc-4.6: mm: fix unused but set warnings	2010-08-09 20:44:58 -07:00
fremap.c	mm: clean up mm_counter	2010-03-06 11:26:23 -08:00
highmem.c	mm,kdb,kgdb: Add a debug reference for the kdb kmap usage	2010-08-05 09:22:24 -05:00
hugetlb.c	Merge branch 'hwpoison' of git://git.kernel.org/pub/scm/linux/kernel/git/ak/linux-mce-2.6	2010-08-12 10:15:10 -07:00
hwpoison-inject.c	HWPOISON, hugetlb: support hwpoison injection for hugepage	2010-08-11 09:23:11 +02:00
init-mm.c	mm: provide init_mm mm_context initializer	2010-08-09 20:44:54 -07:00
internal.h	HWPOISON: add an interface to switch off/on all the page filters	2009-12-16 12:19:59 +01:00
Kconfig	lmb: rename to memblock	2010-07-14 17:14:00 +10:00
Kconfig.debug	trivial: improve help text for mm debug config options	2009-09-21 15:14:57 +02:00
kmemcheck.c	kmemcheck: Fix build errors due to missing slab.h	2010-03-30 22:02:32 +09:00
kmemleak-test.c	percpu: clean up percpu variable definitions	2009-06-24 15:13:48 +09:00
kmemleak.c	kmemleak: Fix typo in the comment	2010-08-08 21:57:23 +01:00
ksm.c	ksm: cleanup for mm_slots_hash	2010-08-09 20:45:03 -07:00
maccess.c	maccess,probe_kernel: Allow arch specific override probe_kernel_(read|write)	2010-01-07 11:58:36 -06:00
madvise.c	HWPOISON: Add a madvise() injector for soft page offlining	2009-12-16 12:20:00 +01:00
Makefile	lmb: rename to memblock	2010-07-14 17:14:00 +10:00
memblock.c	memblock: Fix wraparound in find_region()	2010-10-05 21:45:35 -07:00
memcontrol.c	memcg: convert to use zone_to_nid() from bare zone->zone_pgdat->node_id	2010-08-11 08:59:19 -07:00
memory_hotplug.c	mem-hotplug: fix potential race while building zonelist for new populated zone	2010-05-25 08:07:02 -07:00
memory-failure.c	Merge branch 'hwpoison' of git://git.kernel.org/pub/scm/linux/kernel/git/ak/linux-mce-2.6	2010-08-12 10:15:10 -07:00
memory.c	guard page for stacks that grow upwards	2010-08-24 12:13:20 -07:00
mempolicy.c	mempolicy: reduce stack size of migrate_pages()	2010-08-09 20:44:58 -07:00
mempool.c	mm: remove broken 'kzalloc' mempool	2009-09-22 07:17:35 -07:00
migrate.c	mm: extend KSM refcounts to the anon_vma root	2010-08-09 20:44:55 -07:00
mincore.c	mincore: do nested page table walks	2010-05-25 08:06:58 -07:00
mlock.c	mm: make the mlock() stack guard page checks stricter	2010-08-21 08:49:50 -07:00
mm_init.c	mm: mminit_loglevel cannot be __meminitdata anymore	2008-08-20 15:40:30 -07:00
mmap.c	guard page for stacks that grow upwards	2010-08-24 12:13:20 -07:00
mmu_context.c	exit: fix oops in sync_mm_rss	2010-03-24 16:31:21 -07:00
mmu_notifier.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
mmzone.c	[ARM] Double check memmap is actually valid with a memmap has unexpected holes V2	2009-05-18 11:22:24 +01:00
mprotect.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
mremap.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
msync.c	sanitize vfs_fsync calling conventions	2010-05-21 18:31:21 -04:00
nommu.c	mm: make the vma list be doubly linked	2010-08-21 08:49:21 -07:00
oom_kill.c	oom: __task_cred() need rcu_read_lock()	2010-08-20 09:34:55 -07:00
page_alloc.c	Merge commit 'v2.6.36-rc3' into x86/memblock	2010-08-31 09:45:46 +02:00
page_cgroup.c	kmemleak: Annotate false positive in init_section_page_cgroup()	2010-07-19 11:54:14 +01:00
page_io.c	block: unify flags for struct bio and struct request	2010-08-07 18:20:39 +02:00
page_isolation.c	memory hotplug: fix page_zone() calculation in test_pages_isolated()	2008-11-06 15:41:19 -08:00
page-writeback.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client	2010-08-28 14:07:20 -07:00
pagewalk.c	pagemap: fix pfn calculation for hugepage	2010-04-07 08:38:04 -07:00
percpu_up.c	percpu: don't implicitly include slab.h from percpu.h	2010-03-30 22:02:32 +09:00
percpu-km.c	percpu: implement kernel memory based chunk allocation	2010-05-01 08:30:50 +02:00
percpu-vm.c	percpu: move vmalloc based chunk management into percpu-vm.c	2010-05-01 08:30:50 +02:00
percpu.c	percpu: allow limited allocation before slab is online	2010-06-27 18:50:00 +02:00
prio_tree.c
quicklist.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
readahead.c	readahead.c: fix comment	2010-05-25 08:07:00 -07:00
rmap.c	mm: fix hang on anon_vma->root->lock	2010-08-28 13:54:12 -07:00
shmem.c	shmem: put_super must percpu_counter_destroy	2010-08-17 18:33:11 -07:00
slab.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/penberg/slab-2.6	2010-08-22 10:08:52 -07:00
slob.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/penberg/slab-2.6	2010-08-06 11:44:08 -07:00
slub.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/penberg/slab-2.6	2010-08-06 11:44:08 -07:00
sparse-vmemmap.c	x86: Use memblock to replace early_res	2010-08-27 11:12:29 -07:00
sparse.c	sparsemem: on no vmemmap path put mem_map on node high too	2010-05-25 08:06:56 -07:00
swap_state.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
swap.c	mm: export lru_cache_add_*() to modules	2010-05-25 15:06:06 +02:00
swapfile.c	hibernation: freeze swap at hibernation	2010-08-09 20:45:04 -07:00
thrash.c	mm: pass mm to grab_swap_token	2009-06-23 12:50:05 -07:00
truncate.c	check ATTR_SIZE contraints in inode_change_ok	2010-08-09 16:47:39 -04:00
util.c	mm: use memdup_user	2010-08-09 20:44:54 -07:00
vmalloc.c	Merge branch 'stable/xen-swiotlb-0.8.6' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen	2010-08-12 09:09:41 -07:00
vmscan.c	memcg: remove nid and zid argument from mem_cgroup_soft_limit_reclaim()	2010-08-11 08:59:19 -07:00
vmstat.c	vmscan: kill prev_priority completely	2010-08-09 20:45:00 -07:00