On 02/15/2017 01:22 AM, kbuild test robot wrote:
Hi Dmitry,
...
vim +/mmap_rnd_compat_bits +58 arch/x86/mm/mmap.c
52 * Leave an at least ~128 MB hole with possible stack randomization.
53 */
54 #define MIN_GAP (128*1024*1024UL + stack_maxrandom_size())
55 #define MAX_GAP (TASK_SIZE/6*5)
56
57 #ifdef CONFIG_64BIT
> 58 # define mmap32_rnd_bits mmap_rnd_compat_bits
59 # define mmap64_rnd_bits mmap_rnd_bits
60 #else
61 # define mmap32_rnd_bits mmap_rnd_bits
62 # define mmap64_rnd_bits mmap_rnd_bits
63 #endif
Yep, thanks - it's better be ifdef CONFIG_COMPAT.
Will resend today with this trivial fixup.
--
Dmitry
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