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[Po-Hsu Lin <2093865@xxxxxxxxxxxxxxxxxx>]

So yes, I can confirm commit 2da30df24 is the cause.
Removing the CONFIG_LATENCYTOP check from lib/tst_kconfig.c can make it pass like before.

It feels like this is simply extending the test execution time.

To make it pass, the timeout threshold must be set to 20 mins for
setsockopt06, and 30 for writev03 in autotest-client-tests.

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https://bugs.launchpad.net/bugs/2093865

Title:
  setsockopt06 and writev03 from ubuntu_ltp_syscalls timeout on N/O

Status in ubuntu-kernel-tests:
  In Progress

Bug description:
  While testing the LTP update with HEAD set to 20e346e7380 "testcases:
  add module signature enforcement check".

  The setsockopt06 and writev03 test from ubuntu_ltp_syscalls will timeout with this version:
       START    ubuntu_ltp_syscalls.setsockopt06    ubuntu_ltp_syscalls.setsockopt06    timeout=900    timestamp=1736237685    localtime=Jan 07 08:14:45    
   Persistent state client._record_indent now set to 2
   Persistent state client.unexpected_reboot now set to ('ubuntu_ltp_syscalls.setsockopt06', 'ubuntu_ltp_syscalls.setsockopt06')
   Waiting for pid 176409 for 900 seconds
   System python is too old, crash handling disabled
   Timer expired (900 sec.), nuking pid 176409
           ERROR    ubuntu_ltp_syscalls.setsockopt06    ubuntu_ltp_syscalls.setsockopt06    timestamp=1736238585    localtime=Jan 07 08:29:45    Test timeout expired, rc=15

  
       START    ubuntu_ltp_syscalls.writev03    ubuntu_ltp_syscalls.writev03    timeout=900    timestamp=1736239160    localtime=Jan 07 08:39:20    
   Persistent state client._record_indent now set to 2
   Persistent state client.unexpected_reboot now set to ('ubuntu_ltp_syscalls.writev03', 'ubuntu_ltp_syscalls.writev03')
   Waiting for pid 194535 for 900 seconds
   System python is too old, crash handling disabled
   Timer expired (900 sec.), nuking pid 194535
           ERROR    ubuntu_ltp_syscalls.writev03    ubuntu_ltp_syscalls.writev03    timestamp=1736240060    localtime=Jan 07 08:54:20    Test timeout expired, rc=15

  Bisect indicates this might be the cause:
  2da30df24 lib: multiply the max_runtime if detect slow kconfigs

  And we do have CONFIG_LATENCYTOP defined in our kernel.

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