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[Bug 2061821] Re: mm:overcommit_memory03 in ubuntu_ltp failed on Standard_B1ms with F-azure / F-azure-5.15

To: canonical-ubuntu-qa@xxxxxxxxxxxxxxxxxxx
From: Po-Hsu Lin <2061821@xxxxxxxxxxxxxxxxxx>
Date: Tue, 16 Apr 2024 16:15:00 -0000
Reply-to: Bug 2061821 <2061821@xxxxxxxxxxxxxxxxxx>
Sender: noreply@xxxxxxxxxxxxx
** Description changed:

  This issue can be found solely on Focal Azure Standard_B1ms instance with
-   * 5.4.0-1129.136 in sru-20240401
-   * 5.4.0-1127.134 in sru-20240304
-   * 5.15.0-1056.64~20.04.1 in sru-20240108
+   * 5.4.0-1129.136 in sru-20240401 (passed after retest)
+   * 5.4.0-1127.134 in sru-20240304
+   * 5.15.0-1056.64~20.04.1 in sru-20240108
  
  It seems this test is flaky on this instance as it's not failing constantly, passed with:
-   * 5.15.0-1055.63~20.04.1 in sru-20240108
-   * 5.4.0-1123.130 in sru-20240108
-   * 5.4.0-1125.132 in sru-20240205
-   * 5.15.0-1058.66~20.04.2 in sru-20240205
-   * 5.15.0-1060.69~20.04.1 in sru-20240304
+   * 5.15.0-1055.63~20.04.1 in sru-20240108
+   * 5.4.0-1123.130 in sru-20240108
+   * 5.4.0-1125.132 in sru-20240205
+   * 5.15.0-1058.66~20.04.2 in sru-20240205
+   * 5.15.0-1060.69~20.04.1 in sru-20240304
  
  Test failed with:
-   TFAIL: alloc passed, expected to fail
+   TFAIL: alloc passed, expected to fail
  
  Test log:
  INFO: Test start time: Mon Apr 15 04:15:40 UTC 2024
  COMMAND:    /opt/ltp/bin/ltp-pan -q  -e -S   -a 299223     -n 299223  -f /tmp/ltp-VSBcDQWRn1/alltests -l /dev/null  -C /dev/null -T /dev/null
  LOG File: /dev/null
  FAILED COMMAND File: /dev/null
  TCONF COMMAND File: /dev/null
  Running tests.......
  tst_kernel.c:88: TINFO: uname.machine=x86_64 kernel is 64bit
  tst_test.c:1741: TINFO: LTP version: 20230929-407-g58aa31f55
  tst_test.c:1625: TINFO: Timeout per run is 0h 00m 30s
  overcommit_memory.c:99: TINFO: MemTotal is 1953340 kB
  overcommit_memory.c:101: TINFO: SwapTotal is 0 kB
  overcommit_memory.c:105: TINFO: CommitLimit is 976668 kB
  mem.c:646: TINFO: set overcommit_ratio to 30
  overcommit_memory.c:121: TINFO: TotalBatchSize is 7628 kB
  mem.c:646: TINFO: set overcommit_memory to 2
  overcommit_memory.c:157: TINFO: malloc 1992 kB successfully
  overcommit_memory.c:184: TFAIL: alloc passed, expected to fail
  overcommit_memory.c:161: TINFO: malloc 593628 kB failed
  overcommit_memory.c:182: TPASS: alloc failed as expected
  overcommit_memory.c:210: TINFO: CommitLimit is 586000, Committed_AS is 586852
  overcommit_memory.c:218: TCONF: Specified overcommit_ratio 30 <= default 50, so it's possible for CommitLimit < Committed_AS and skip test
  
  Summary:
  passed   1
  failed   1
  broken   0
  skipped  1
  warnings 0
  INFO: ltp-pan reported some tests FAIL
  LTP Version: 20230929-407-g58aa31f55
  INFO: Test end time: Mon Apr 15 04:15:40 UTC 2024
  
  [1] https://lists.ubuntu.com/archives/kernel-team/2024-March/149664.html

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https://bugs.launchpad.net/bugs/2061821

Title:
  mm:overcommit_memory03 in ubuntu_ltp failed on Standard_B1ms with
  F-azure / F-azure-5.15

Status in ubuntu-kernel-tests:
  New

Bug description:
  This issue can be found solely on Focal Azure Standard_B1ms instance with
    * 5.4.0-1129.136 in sru-20240401 (passed after retest)
    * 5.4.0-1127.134 in sru-20240304
    * 5.15.0-1056.64~20.04.1 in sru-20240108

  It seems this test is flaky on this instance as it's not failing constantly, passed with:
    * 5.15.0-1055.63~20.04.1 in sru-20240108
    * 5.4.0-1123.130 in sru-20240108
    * 5.4.0-1125.132 in sru-20240205
    * 5.15.0-1058.66~20.04.2 in sru-20240205
    * 5.15.0-1060.69~20.04.1 in sru-20240304

  Test failed with:
    TFAIL: alloc passed, expected to fail

  Test log:
  INFO: Test start time: Mon Apr 15 04:15:40 UTC 2024
  COMMAND:    /opt/ltp/bin/ltp-pan -q  -e -S   -a 299223     -n 299223  -f /tmp/ltp-VSBcDQWRn1/alltests -l /dev/null  -C /dev/null -T /dev/null
  LOG File: /dev/null
  FAILED COMMAND File: /dev/null
  TCONF COMMAND File: /dev/null
  Running tests.......
  tst_kernel.c:88: TINFO: uname.machine=x86_64 kernel is 64bit
  tst_test.c:1741: TINFO: LTP version: 20230929-407-g58aa31f55
  tst_test.c:1625: TINFO: Timeout per run is 0h 00m 30s
  overcommit_memory.c:99: TINFO: MemTotal is 1953340 kB
  overcommit_memory.c:101: TINFO: SwapTotal is 0 kB
  overcommit_memory.c:105: TINFO: CommitLimit is 976668 kB
  mem.c:646: TINFO: set overcommit_ratio to 30
  overcommit_memory.c:121: TINFO: TotalBatchSize is 7628 kB
  mem.c:646: TINFO: set overcommit_memory to 2
  overcommit_memory.c:157: TINFO: malloc 1992 kB successfully
  overcommit_memory.c:184: TFAIL: alloc passed, expected to fail
  overcommit_memory.c:161: TINFO: malloc 593628 kB failed
  overcommit_memory.c:182: TPASS: alloc failed as expected
  overcommit_memory.c:210: TINFO: CommitLimit is 586000, Committed_AS is 586852
  overcommit_memory.c:218: TCONF: Specified overcommit_ratio 30 <= default 50, so it's possible for CommitLimit < Committed_AS and skip test

  Summary:
  passed   1
  failed   1
  broken   0
  skipped  1
  warnings 0
  INFO: ltp-pan reported some tests FAIL
  LTP Version: 20230929-407-g58aa31f55
  INFO: Test end time: Mon Apr 15 04:15:40 UTC 2024

  [1] https://lists.ubuntu.com/archives/kernel-
  team/2024-March/149664.html

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References

[Bug 2061821] [NEW] mm:overcommit_memory03 in ubuntu_ltp failed on Standard_B1ms with F-azure / F-azure-5.15
From: Po-Hsu Lin, 2024-04-16