在 2021/6/1 23:00, David Hildenbrand 写道:
On 01.06.21 11:34, Yongqiang Liu wrote:
Hi Catalin and Will,
when we mmap the addr NULL with MAP_FIXED flag to the hugetlbfs, system
will return NULL successfully.
My question is: Why mmap to file with the hugepagesize=512M we got
SIGILL but mmap to the file with hugepagesize=2M we got a success ? Here
is my test steps:
1. echo 10 >
/sys/kernel/mm/hugepages/hugepages-2048kB/nr_hugepages
echo 10 >
/sys/kernel/mm/hugepages/hugepages-524288kB/nr_hugepages
Which values do you get when you read back these knobs?
10. I forgot that the selinux should be disabled or mmap return failed
with error code 13.
Thanks,
Yongqiang Liu
