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[Po-Hsu Lin <2026543@xxxxxxxxxxxxxxxxxx>]

With F-lowlatency-5.15.0-87.96~20.04.1 on node wright, it took 95
seconds to run.

03:43:08 DEBUG| [stdout] startup='Tue Oct 17 03:38:59 2023'
03:43:08 DEBUG| [stdout] tst_hugepage.c:83: TINFO: 5 hugepage(s) reserved
03:43:08 DEBUG| [stdout] tst_test.c:1558: TINFO: Timeout per run is 0h 05m 00s
03:43:08 DEBUG| [stdout] hugefork02.c:67: TPASS: Successfully tested shared hugetlb memory with multiple procs
03:43:08 DEBUG| [stdout] 
03:43:08 DEBUG| [stdout] Summary:
03:43:08 DEBUG| [stdout] passed   1
03:43:08 DEBUG| [stdout] failed   0
03:43:08 DEBUG| [stdout] broken   0
03:43:08 DEBUG| [stdout] skipped  0
03:43:08 DEBUG| [stdout] warnings 0
03:43:08 DEBUG| [stdout] tag=hugefork02 stime=1697513939 dur=95 exit=exited stat=0 core=no cu=459946 cs=402

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https://bugs.launchpad.net/bugs/2026543

Title:
  hugefork02 in ubuntu_ltp_stable/hugetlb will timeout with J-6.2 ARM64k

Status in ubuntu-kernel-tests:
  In Progress

Bug description:
  This issue can be found on J-6.2 generic / lowlatency ARM64k with node
  wright-kernel.

  It feels likes a hw-specific issue, test passed with L-generic ARM64k
  starmie-kernel (for L-lowlatency ARM64k scobee-kernel, test was unable
  to start due to a hang in dio test)

  When this happens, it will cause failures to these tests as well:
  hugemmap05 hugemmap05_1 hugemmap10 hugeshmctl02 

  Test log:
  startup='Fri Jul  7 08:47:20 2023'
  tst_hugepage.c:83: TINFO: 5 hugepage(s) reserved
  tst_test.c:1558: TINFO: Timeout per run is 0h 00m 30s
  Test timeouted, sending SIGKILL!
  tst_test.c:1606: TINFO: Killed the leftover descendant processes
  tst_test.c:1612: TINFO: If you are running on slow machine, try exporting LTP_TIMEOUT_MUL > 1
  tst_test.c:1614: TBROK: Test killed! (timeout?)

  Summary:
  passed   0
  failed   0
  broken   1
  skipped  0
  warnings 0
  tag=hugefork02 stime=1688719640 dur=31 exit=exited stat=2 core=no cu=0 cs=20

  And lead to ENOMEM to other tests:
   startup='Fri Jul  7 08:48:04 2023'
   tst_hugepage.c:83: TINFO: 7 hugepage(s) reserved
   tst_test.c:1558: TINFO: Timeout per run is 0h 00m 30s
   hugemmap05.c:225: TINFO: original nr_overcommit_hugepages is 0
   hugemmap05.c:83: TBROK: mmap((nil),1610612736,3,1,8,0) failed: ENOMEM (12)
   hugemmap05.c:178: TINFO: restore nr_overcommit_hugepages to 0.
   
   Summary:
   passed   0
   failed   0
   broken   1
   skipped  0
   warnings 0
   tag=hugemmap05 stime=1688719684 dur=0 exit=exited stat=2 core=no cu=0 cs=10

   startup='Fri Jul  7 08:49:00 2023'
   tst_hugepage.c:83: TINFO: 7 hugepage(s) reserved
   tst_test.c:1558: TINFO: Timeout per run is 0h 00m 30s
   hugemmap05.c:225: TINFO: original nr_overcommit_hugepages is 0
   hugemmap05.c:79: TBROK: shmget(219611296, 1610612736, b80) failed: ENOMEM (12)
   hugemmap05.c:178: TINFO: restore nr_overcommit_hugepages to 0.
   
   Summary:
   passed   0
   failed   0
   broken   1
   skipped  0
   warnings 0
   tag=hugemmap05_1 stime=1688719740 dur=0 exit=exited stat=2 core=no cu=0 cs=10

   startup='Fri Jul  7 08:48:13 2023'
   tst_hugepage.c:83: TINFO: 8 hugepage(s) reserved
   tst_test.c:1558: 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 5
   hugemmap10.c:317: TFAIL: While initializing hugepages pool: Bad HugePages_Surp: expected 0, actual 5
   
   Summary:
   passed   0
   failed   2
   broken   0
   skipped  0
   warnings 0
   tag=hugemmap10 stime=1688719693 dur=1 exit=exited stat=1 core=no cu=0 cs=26

   startup='Fri Jul  7 08:49:26 2023'
   tst_hugepage.c:83: TINFO: 128 hugepage(s) reserved
   tst_test.c:1558: TINFO: Timeout per run is 0h 00m 30s
   hugeshmctl02.c:93: TBROK: shmget #2: ENOMEM (12)
   
   Summary:
   passed   0
   failed   0
   broken   1
   skipped  0
   warnings 0
   tag=hugeshmctl02 stime=1688719766 dur=4 exit=exited stat=2 core=no cu=0 cs=399

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