diff options
| author | Stanislaw Gruszka <[email protected]> | 2011-12-06 09:08:34 +0100 |
|---|---|---|
| committer | Ingo Molnar <[email protected]> | 2011-12-06 09:23:53 +0100 |
| commit | 855c743a27bb58a9a521bdc485ef5acfdb69badc (patch) | |
| tree | 0b53ae9a389f64a6f4c10492786d45d0453c6c25 /net/lapb/lapb_subr.c | |
| parent | 706d9a9c8b5758390036b9980a2b12d809599777 (diff) | |
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 <[email protected]>
Signed-off-by: Stanislaw Gruszka <[email protected]>
Cc: [email protected]
Cc: Mel Gorman <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Ingo Molnar <[email protected]>
Diffstat (limited to 'net/lapb/lapb_subr.c')
0 files changed, 0 insertions, 0 deletions