Hi Colin, On Wed, Jun 18, 2014 at 09:10:09PM +0100, Colin Cross wrote: > include/linux/sched.h implements TASK_SIZE_OF as TASK_SIZE if it > is not set by the architecture headers. TASK_SIZE uses the > current task to determine the size of the virtual address space. > On a 64-bit kernel this will cause reading /proc/pid/pagemap of a > 64-bit process from a 32-bit process to return EOF when it reads > past 0xffffffff. > > Implement TASK_SIZE_OF exactly the same as TASK_SIZE with > test_tsk_thread_flag instead of test_thread_flag. Looks sane to me. Acked-by: Will Deacon <will.deacon@xxxxxxx> I take it you're being bitten by this in real software, hence the CC stable tag? Will -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html