On 9/13/16 7:40 PM, Kirill A. Shutemov wrote:
On Tue, Sep 13, 2016 at 07:21:07PM +0800, Rui Teng wrote:
On 9/13/16 5:32 PM, Kirill A. Shutemov wrote:
On Tue, Sep 13, 2016 at 05:26:05PM +0800, Rui Teng wrote:
The huge page size could be 16G(0x400000000) on ppc64 architecture, and it will
cause an overflow on unsigned long data type(0xFFFFFFFF).
Huh? ppc64 is 64-bit system and sizeof(void *) is equal to
sizeof(unsigned long) on Linux (LP64 model).
So where your 0xFFFFFFFF comes from?
The size of unsigned long data type is 4 bytes
No, it's not.
Sorry, my fault!
I print the unsigned long with "%ul" instead of "%lu" and got the wrong
result. Sorry!
--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@xxxxxxxxx. For more info on Linux MM,
see: http://www.linux-mm.org/ .
Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>