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[Po-Hsu Lin <2068932@xxxxxxxxxxxxxxxxxx>]

Issue reported to stress-ng upstream.
https://github.com/ColinIanKing/stress-ng/issues/400

I have it tested with Noble 6.8 and Noble + 6.10rc3, this issue can be
reproduced with these combinations as well.

** Bug watch added: github.com/ColinIanKing/stress-ng/issues #400
   https://github.com/ColinIanKing/stress-ng/issues/400

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https://bugs.launchpad.net/bugs/2068932

Title:
  ubuntu_stress_smoke_test sleep -- nanosleeps for 11111 nanosecs to
  less than 8583.07 nanosecs to complete

Status in ubuntu-kernel-tests:
  In Progress

Bug description:
  Seen on jammy:linux-nvidia-6.5, version 6.5.0-1021.22, cycle
  2024.04.29.

  Failed on:
  - gunyolk (arm64)
  - hinyari (arm64)

  Passed on:
  - akis (amd64)
  - blanka (amd64)
  - hidon (amd64)
  - appleton-kernel (arm64)

  ubuntu_stress_smoke_test.sleep fails with the following output, full
  log attached:

   stress-ng: debug: [202525] invoked with './stress-ng -v -t 5 --sleep 4 --sleep-ops 3000 --ignite-cpu --syslog --verbose --verify --oomable' by user 0 'root'
   stress-ng: debug: [202525] stress-ng 0.18.00 gea5b6cd62237
   stress-ng: debug: [202525] system: Linux gunyolk 6.5.0-1021-nvidia #22-Ubuntu SMP PREEMPT_DYNAMIC Thu May 30 18:54:56 UTC 2024 aarch64, gcc 11.4.0, glibc 2.35, little endian
   stress-ng: debug: [202525] RAM total: 471.1G, RAM free: 467.6G, swap free: 750.8M
   stress-ng: debug: [202525] temporary file path: '/home/ubuntu/autotest/client/tmp/ubuntu_stress_smoke_test/src/stress-ng', filesystem type: ext2 (217049764 blocks available)
   stress-ng: debug: [202525] CPU has 1 idle state: LPI-0
   stress-ng: debug: [202525] 144 processors online, 144 processors configured
   stress-ng: info:  [202525] setting to a 5 secs run per stressor
   stress-ng: debug: [202525] CPU data cache: L1: 64K, L2: 1024K, L3: 116736K
   stress-ng: debug: [202525] cache allocate: shared cache buffer size: 233472K (LLC size x 2 NUMA nodes)
   stress-ng: info:  [202525] dispatching hogs: 4 sleep
   stress-ng: debug: [202525] starting stressors
   stress-ng: debug: [202526] sleep: [202526] started (instance 0 on CPU 24)
   stress-ng: debug: [202527] sleep: [202527] started (instance 1 on CPU 25)
   stress-ng: debug: [202525] 4 stressors started
   stress-ng: debug: [202528] sleep: [202528] started (instance 2 on CPU 26)
   stress-ng: debug: [202529] sleep: [202529] started (instance 3 on CPU 27)
   stress-ng: fail:  [202528] sleep: nanosleeps for 11111 nanosecs to less than 8583.07 nanosecs to complete
   stress-ng: fail:  [202528] sleep: nanosleeps for 11111 nanosecs to less than 10013.58 nanosecs to complete
   stress-ng: fail:  [202528] sleep: nanosleeps for 11111 nanosecs to less than 10728.84 nanosecs to complete
   stress-ng: fail:  [202527] sleep: nanosleeps for 11111 nanosecs to less than 10013.58 nanosecs to complete
   stress-ng: fail:  [202527] sleep: nanosleeps for 11111 nanosecs to less than 10967.25 nanosecs to complete
   stress-ng: fail:  [202526] sleep: nanosleeps for 11111 nanosecs to less than 10967.25 nanosecs to complete
   stress-ng: fail:  [202527] sleep: nanosleeps for 11111 nanosecs to less than 10967.25 nanosecs to complete
   stress-ng: fail:  [202529] sleep: nanosleeps for 11111 nanosecs to less than 8583.07 nanosecs to complete
   stress-ng: fail:  [202529] sleep: nanosleeps for 11111 nanosecs to less than 9059.91 nanosecs to complete
   stress-ng: fail:  [202529] sleep: nanosleeps for 11111 nanosecs to less than 9536.74 nanosecs to complete
   stress-ng: fail:  [202526] sleep: nanosleeps for 11111 nanosecs to less than 10728.84 nanosecs to complete
   stress-ng: fail:  [202526] sleep: nanosleeps for 11111 nanosecs to less than 9298.32 nanosecs to complete
   stress-ng: fail:  [202526] sleep: nanosleeps for 11111 nanosecs to less than 9536.74 nanosecs to complete
   stress-ng: fail:  [202528] sleep: nanosleeps for 11111 nanosecs to less than 9536.74 nanosecs to complete
   stress-ng: fail:  [202527] sleep: nanosleeps for 11111 nanosecs to less than 9059.91 nanosecs to complete
   stress-ng: fail:  [202529] sleep: nanosleeps for 11111 nanosecs to less than 9775.16 nanosecs to complete
   stress-ng: fail:  [202529] sleep: nanosleeps for 11111 nanosecs to less than 8821.49 nanosecs to complete
   stress-ng: fail:  [202529] sleep: nanosleeps for 11111 nanosecs to less than 10728.84 nanosecs to complete
   info: 5 failures reached, aborting stress process
   stress-ng: fail:  [202526] sleep: nanosleeps for 11111 nanosecs to less than 9059.91 nanosecs to complete
   info: 5 failures reached, aborting stress process
   stress-ng: fail:  [202527] sleep: nanosleeps for 11111 nanosecs to less than 10013.58 nanosecs to complete
   info: 5 failures reached, aborting stress process
   stress-ng: fail:  [202528] sleep: nanosleeps for 11111 nanosecs to less than 10490.42 nanosecs to complete
   info: 5 failures reached, aborting stress process
   stress-ng: fail:  [202529] sleep: detected 6 sleep underruns
   stress-ng: debug: [202529] sleep: [202529] exited (instance 3 on CPU 27)
   stress-ng: fail:  [202526] sleep: detected 5 sleep underruns
   stress-ng: fail:  [202527] sleep: detected 5 sleep underruns
   stress-ng: debug: [202526] sleep: [202526] exited (instance 0 on CPU 26)
   stress-ng: debug: [202527] sleep: [202527] exited (instance 1 on CPU 29)
   stress-ng: error: [202525] sleep: [202526] terminated with an error, exit status=2 (stressor failed)
   stress-ng: debug: [202525] sleep: [202526] terminated (stressor failed)
   stress-ng: error: [202525] sleep: [202527] terminated with an error, exit status=2 (stressor failed)
   stress-ng: debug: [202525] sleep: [202527] terminated (stressor failed)
   stress-ng: fail:  [202528] sleep: detected 5 sleep underruns
   stress-ng: debug: [202528] sleep: [202528] exited (instance 2 on CPU 23)
   stress-ng: error: [202525] sleep: [202528] terminated with an error, exit status=2 (stressor failed)
   stress-ng: debug: [202525] sleep: [202528] terminated (stressor failed)
   stress-ng: error: [202525] sleep: [202529] terminated with an error, exit status=2 (stressor failed)
   stress-ng: debug: [202525] sleep: [202529] terminated (stressor failed)
   stress-ng: debug: [202525] metrics-check: all stressor metrics validated and sane
   stress-ng: info:  [202525] skipped: 0
   stress-ng: info:  [202525] passed: 0
   stress-ng: info:  [202525] failed: 4: sleep (4)
   stress-ng: info:  [202525] metrics untrustworthy: 0
   stress-ng: info:  [202525] unsuccessful run completed in 0.05 secs
    
    
    
   Summary:
     Stressors run: 1
     Skipped: 0, 
     Failed:  1,  sleep
     Oopsed:  0, 
     Oomed:   0, 
     Passed:  0, 
     Badret:  0, 
    
   Tests took 0 seconds to run

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