hugemmap05_1 hugemmap10 from hugetlb in ubuntu_ltp_stable failed on B-ibm-gt

[Po-Hsu Lin]

Issue found with B-ibm-gt 4.15.0-1156.169 on node durin and openstack AMD64 instance.

Test failed with hugemmap05_1 and hugemmap10 these 2 test cases:

 startup='Thu Mar 14 01:44:13 2024'
 tst_hugepage.c:84: TINFO: 4 hugepage(s) reserved
 tst_test.c:1741: TINFO: LTP version: 20230929-406-gcbc2d0568
 tst_test.c:1627: TINFO: Timeout per run is 0h 00m 30s
 hugemmap05.c:226: TINFO: original nr_overcommit_hugepages is 0
 hugemmap05.c:233: TINFO: Mounting (null) to /tmp/ltp-2GRCMg39hB/LTP_huglALBlM/hugemmap05 fstyp=hugetlbfs flags=0
 hugemmap05.c:99: TINFO: check /proc/meminfo before allocation.
 hugemmap05.c:275: TINFO: HugePages_Total is 4.
 hugemmap05.c:278: TFAIL: HugePages_Total is not 3 but 4.
 hugemmap05.c:179: TINFO: restore nr_overcommit_hugepages to 0.

 Summary:
 passed 0
 failed 1
 broken 0
 skipped 0
 warnings 0
 tag=hugemmap05_1 stime=1710380653 dur=0 exit=exited stat=1 core=no cu=0 cs=2

 startup='Thu Mar 14 01:44:03 2024'
 tst_hugepage.c:84: TINFO: 5 hugepage(s) reserved
 tst_test.c:1049: TINFO: Mounting none to /tmp/ltp-hmfJwHRq3e/LTP_hugYYlEVD/hugetlbfs fstyp=hugetlbfs flags=0
 tst_test.c:1741: TINFO: LTP version: 20230929-406-gcbc2d0568
 tst_test.c:1627: TINFO: Timeout per run is 0h 00m 30s
 hugemmap10.c:388: TINFO: Base pool size: 0
 hugemmap10.c:315: TINFO: Clean...
 hugemmap10.c:317: TFAIL: While initializing hugepages pool: Bad HugePages_Total: expected 0, actual 2
 hugemmap10.c:317: TFAIL: While initializing hugepages pool: Bad HugePages_Free: expected 0, actual 2
 hugemmap10.c:317: TFAIL: While initializing hugepages pool: Bad HugePages_Surp: expected 0, actual 2

 Summary:
 passed 0
 failed 3
 broken 0
 skipped 0
 warnings 0
 tag=hugemmap10 stime=1710380643 dur=0 exit=exited stat=1 core=no cu=0 cs=3

This is not a regression, from our hint database it looks this can be traced all the way back to -1148