Russ Anderson
f9228b204f
mm: zone_end_pfn is too small
Booting with 32 TBytes memory hits BUG at mm/page_alloc.c:552! (output
below).
The key hint is "page 4294967296 outside zone".
4294967296 = 0x100000000 (bit 32 is set).
The problem is in include/linux/mmzone.h:
530 static inline unsigned zone_end_pfn(const struct zone *zone)
531 {
532 return zone->zone_start_pfn + zone->spanned_pages;
533 }
zone_end_pfn is "unsigned" (32 bits). Changing it to "unsigned long"
(64 bits) fixes the problem.
zone_end_pfn() was added recently in commit 108bcc96ef ("mm: add & use
zone_end_pfn() and zone_spans_pfn()")
Output from the failure.
No AGP bridge found
page 4294967296 outside zone [ 4294967296 - 4327469056 ]
------------[ cut here ]------------
kernel BUG at mm/page_alloc.c:552!
invalid opcode: 0000 [#1] SMP
Modules linked in:
CPU 0
Pid: 0, comm: swapper Not tainted 3.9.0-rc2.dtp+ #10
RIP: free_one_page+0x382/0x430
Process swapper (pid: 0, threadinfo ffffffff81942000, task ffffffff81955420)
Call Trace:
__free_pages_ok+0x96/0xb0
__free_pages+0x25/0x50
__free_pages_bootmem+0x8a/0x8c
__free_memory_core+0xea/0x131
free_low_memory_core_early+0x4a/0x98
free_all_bootmem+0x45/0x47
mem_init+0x7b/0x14c
start_kernel+0x216/0x433
x86_64_start_reservations+0x2a/0x2c
x86_64_start_kernel+0x144/0x153
Code: 89 f1 ba 01 00 00 00 31 f6 d3 e2 4c 89 ef e8 66 a4 01 00 e9 2c fe ff ff 0f 0b eb fe 0f 0b 66 66 2e 0f 1f 84 00 00 00 00 00 eb f3 <0f> 0b eb fe 0f 0b 0f 1f 84 00 00 00 00 00 eb f6 0f 0b eb fe 49
Signed-off-by: Russ Anderson <rja@sgi.com>
Reported-by: George Beshers <gbeshers@sgi.com>
Acked-by: Hedi Berriche <hedi@sgi.com>
Cc: Cody P Schafer <cody@linux.vnet.ibm.com>
Cc: Michal Hocko <mhocko@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-03-22 16:41:20 -07:00
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