[Bug 1830479] [NEW] testcases expect first kernel log line, but not always in logs

[Dan Streetman]

Public bug reported:

[impact]

boot-and-services and cmdline-upstart-boot expect the first(ish) kernel
log line to be in the system logs, but that is not guaranteed to be in
the logs.

[test case]

run autopkgtest on arm64 with the current kernel, whose kernel log size
is too small for journald or rsyslogd to capture the first kernel log
messages.

[regression potential]

low; testcase fix only.

[other info]

the specific cause of this currently is too-small kernel log buffer size
on arm64, which is being fixed in bug 1824864, but increasing amounts of
boot time logging may cause a failure again, or custom kernel configs
with small log buffers.

** Affects: systemd (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1830479

Title:
  testcases expect first kernel log line, but not always in logs

Status in systemd package in Ubuntu:
  New

Bug description:
  [impact]

  boot-and-services and cmdline-upstart-boot expect the first(ish)
  kernel log line to be in the system logs, but that is not guaranteed
  to be in the logs.

  [test case]

  run autopkgtest on arm64 with the current kernel, whose kernel log
  size is too small for journald or rsyslogd to capture the first kernel
  log messages.

  [regression potential]

  low; testcase fix only.

  [other info]

  the specific cause of this currently is too-small kernel log buffer
  size on arm64, which is being fixed in bug 1824864, but increasing
  amounts of boot time logging may cause a failure again, or custom
  kernel configs with small log buffers.

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