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[Po-Hsu Lin <1900672@xxxxxxxxxxxxxxxxxx>]

Kernel EOL, and this issue does not exist in our hinting database.


** Changed in: ubuntu-kernel-tests
       Status: Confirmed => Won't Fix

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https://bugs.launchpad.net/bugs/1900672

Title:
  epoll_wait02 from ubuntu_ltp_syscalls failed on G-5.8-Azure Basic_A2

Status in ubuntu-kernel-tests:
  Won't Fix

Bug description:
  Issue found on 5.8.0-1008.8-azure with instance Basic_A2 only.

  Test failed with:
   startup='Sun Oct 11 14:38:23 2020'
   tst_test.c:1248: TINFO: Timeout per run is 0h 05m 00s
   sh: 1: systemd-detect-virt: not found
   tst_timer_test.c:357: TINFO: CLOCK_MONOTONIC resolution 1ns
   tst_timer_test.c:369: TINFO: prctl(PR_GET_TIMERSLACK) = 50us
   tst_timer_test.c:263: TINFO: epoll_wait() sleeping for 1000us 500 iterations, threshold 450.01us
   tst_timer_test.c:305: TINFO: min 1061us, max 1371us, median 1096us, trunc mean 1091.72us (discarded 25)
   tst_timer_test.c:326: TPASS: Measured times are within thresholds
   tst_timer_test.c:263: TINFO: epoll_wait() sleeping for 2000us 500 iterations, threshold 450.01us
   tst_timer_test.c:305: TINFO: min 2063us, max 5705us, median 2099us, trunc mean 2096.45us (discarded 25)
   tst_timer_test.c:326: TPASS: Measured times are within thresholds
   tst_timer_test.c:263: TINFO: epoll_wait() sleeping for 5000us 300 iterations, threshold 450.04us
   tst_timer_test.c:305: TINFO: min 5070us, max 5237us, median 5100us, trunc mean 5099.84us (discarded 15)
   tst_timer_test.c:326: TPASS: Measured times are within thresholds
   tst_timer_test.c:263: TINFO: epoll_wait() sleeping for 10000us 100 iterations, threshold 450.33us
   tst_timer_test.c:305: TINFO: min 10074us, max 10982us, median 10112us, trunc mean 10270.36us (discarded 5)
   tst_timer_test.c:326: TPASS: Measured times are within thresholds
   tst_timer_test.c:263: TINFO: epoll_wait() sleeping for 25000us 50 iterations, threshold 451.29us
   tst_timer_test.c:305: TINFO: min 25097us, max 27269us, median 27201us, trunc mean 26889.77us (discarded 2)
   tst_timer_test.c:314: TFAIL: epoll_wait() slept for too long

   Time: us | Frequency
   --------------------------------------------------------------------------------
   25097 | *+
   25212 |
   25327 | *+
   25442 | *+
   25557 |
   25672 | *+
   25787 | *****+
   25902 |
   26017 |
   26132 | *+
   26247 | ***+
   26362 |
   26477 | *+
   26592 |
   26707 | *+
   26822 |
   26937 |
   27052 | ***+
   27167 | ********************************************************************
   --------------------------------------------------------------------------------
   115us | 1 sample = 1.88889 '*', 3.77778 '+', 7.55556 '-', non-zero '.'

   tst_timer_test.c:263: TINFO: epoll_wait() sleeping for 100000us 10 iterations, threshold 537.00us
   tst_timer_test.c:305: TINFO: min 100451us, max 108555us, median 102044us, trunc mean 103175.22us (discarded 1)
   tst_timer_test.c:314: TFAIL: epoll_wait() slept for too long

   Time: us | Frequency
   --------------------------------------------------------------------------------
   100451 | **********************************
   100878 | **********************************
   101305 | **********************************
   101732 | ********************************************************************
   102159 |
   102586 |
   103013 |
   103440 | **********************************
   103867 |
   104294 | **********************************
   104721 |
   105148 |
   105575 | **********************************
   106002 |
   106429 |
   106856 |
   107283 |
   107710 | **********************************
   108137 | **********************************
   --------------------------------------------------------------------------------
   427us | 1 sample = 34.00000 '*', 68.00000 '+', 136.00000 '-', non-zero '.'

   tst_timer_test.c:263: TINFO: epoll_wait() sleeping for 1000000us 2 iterations, threshold 4400.00us
   tst_timer_test.c:305: TINFO: min 1006006us, max 1008065us, median 1006006us, trunc mean 1006006.00us (discarded 1)
   tst_timer_test.c:314: TFAIL: epoll_wait() slept for too long

   Time: us | Frequency
   --------------------------------------------------------------------------------
   1006006 | ********************************************************************
   1006115 |
   1006224 |
   1006333 |
   1006442 |
   1006551 |
   1006660 |
   1006769 |
   1006878 |
   1006987 |
   1007096 |
   1007205 |
   1007314 |
   1007423 |
   1007532 |
   1007641 |
   1007750 |
   1007859 |
   1007968 | ********************************************************************
   --------------------------------------------------------------------------------
   109us | 1 sample = 68.00000 '*', 136.00000 '+', 272.00000 '-', non-zero '.'

  
   Summary:
   passed 4
   failed 3
   skipped 0
   warnings 0
   tag=epoll_wait02 stime=1602427103 dur=8 exit=exited stat=1 core=no cu=1 cs=2

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