attempted to use hugetlb resource control for the first time. running 6.1.9 create the subdirectory, then enable the hugetlb controller. reading the initial value of hugetlb.2MB.rsvd.max returns "max". i write 128 and receive a return value of 3. but then read hugetlb.2MB.rsvd.max and it now returns 0. same exact thing happens for hugetlb.2MB.max so clearly the write is secretly failing somewhere even though the write operation return success? there are plenty of pages available: HugePages_Total: 4096 HugePages_Free: 4096 HugePages_Rsvd: 0 HugePages_Surp: 0 Hugepagesize: 2048 kB Hugetlb: 13631488 kB none of the scarce documentation on this controller leads me to believe there's any required configuration beyond the above. so completely bewildered as to what's going wrong?