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[Ian Whitfield <2122460@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

Not considered a regression because this behavior was present since the
beginning of TDX testing.

When testing ubuntu_ltp.fs:lftest01 for noble:linux-gke on c3-standard-8.tdx, the test result output is like so:
# INFO: Test start time: Tue Sep  9 19:51:36 UTC 2025
# COMMAND:    /opt/ltp/bin/ltp-pan -q  -e -S   -a 61985     -n 61985  -f /tmp/ltp-Y2inTXRrZJ/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_tmpdir.c:316: TINFO: Using /tmp/ltp-Y2inTXRrZJ/LTP_lftodYLmI as tmpdir (ext2/ext3/ext4 filesystem)
# tst_test.c:1952: TINFO: LTP version: 20230929-1381-g577e8f36b
# tst_test.c:1955: TINFO: Tested kernel: 6.8.0-1034-gke #38-Ubuntu SMP Wed Sep  3 04:54:14 UTC 2025 x86_64
# tst_kconfig.c:88: TINFO: Parsing kernel config '/lib/modules/6.8.0-1034-gke/build/.config'
# tst_test.c:1773: TINFO: Overall timeout per run is 0h 00m 30s
# lftest.c:48: TINFO: started building a 100 megabyte file
# Test timeouted, sending SIGKILL!
# tst_test.c:1845: TINFO: If you are running on slow machine, try exporting LTP_TIMEOUT_MUL > 1
# tst_test.c:1847: TBROK: Test killed! (timeout?)
# 
# Summary:
# passed   0
# failed   0
# broken   1
# skipped  0
# warnings 0
# INFO: ltp-pan reported some tests FAIL
# LTP Version: 20230929-1381-g577e8f36b
# INFO: Test end time: Tue Sep  9 19:52:07 UTC 2025

This error is consistent across at least one retry. I haven't seen this
error when testing noble:linux-gcp yet.

Passing runs of this test complete the timed out portion in 3 seconds
even on the slowest instances, the timeout is set for 30 seconds.

** Affects: ubuntu-kernel-tests
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/2122460

Title:
  ubuntu_ltp.fs:lftest01 times out on Google TDX instance

Status in ubuntu-kernel-tests:
  New

Bug description:
  Not considered a regression because this behavior was present since
  the beginning of TDX testing.

  When testing ubuntu_ltp.fs:lftest01 for noble:linux-gke on c3-standard-8.tdx, the test result output is like so:
  # INFO: Test start time: Tue Sep  9 19:51:36 UTC 2025
  # COMMAND:    /opt/ltp/bin/ltp-pan -q  -e -S   -a 61985     -n 61985  -f /tmp/ltp-Y2inTXRrZJ/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_tmpdir.c:316: TINFO: Using /tmp/ltp-Y2inTXRrZJ/LTP_lftodYLmI as tmpdir (ext2/ext3/ext4 filesystem)
  # tst_test.c:1952: TINFO: LTP version: 20230929-1381-g577e8f36b
  # tst_test.c:1955: TINFO: Tested kernel: 6.8.0-1034-gke #38-Ubuntu SMP Wed Sep  3 04:54:14 UTC 2025 x86_64
  # tst_kconfig.c:88: TINFO: Parsing kernel config '/lib/modules/6.8.0-1034-gke/build/.config'
  # tst_test.c:1773: TINFO: Overall timeout per run is 0h 00m 30s
  # lftest.c:48: TINFO: started building a 100 megabyte file
  # Test timeouted, sending SIGKILL!
  # tst_test.c:1845: TINFO: If you are running on slow machine, try exporting LTP_TIMEOUT_MUL > 1
  # tst_test.c:1847: TBROK: Test killed! (timeout?)
  # 
  # Summary:
  # passed   0
  # failed   0
  # broken   1
  # skipped  0
  # warnings 0
  # INFO: ltp-pan reported some tests FAIL
  # LTP Version: 20230929-1381-g577e8f36b
  # INFO: Test end time: Tue Sep  9 19:52:07 UTC 2025

  This error is consistent across at least one retry. I haven't seen
  this error when testing noble:linux-gcp yet.

  Passing runs of this test complete the timed out portion in 3 seconds
  even on the slowest instances, the timeout is set for 30 seconds.

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