[Bug 2027575] Re: autopkgtest net is failing on 6.2 kernels with 'System is deadlocked on memory'

[Launchpad Bug Tracker]

This bug was fixed in the package initramfs-tools - 0.140ubuntu13.4

---------------
initramfs-tools (0.140ubuntu13.4) jammy; urgency=medium

  * hook-functions: add stusb160x kernel module for Tegra IGX (LP:
#2027636)

initramfs-tools (0.140ubuntu13.3) jammy; urgency=medium

  [ Loïc Minier ]
  * Include kernel/drivers/usb/typec/ucsi with MODULES=most along with other
    USB storage drivers; LP: #2027636.

  [ Benjamin Drung ]
  * Port the net autopkgtest to the common test framework. This drops
    depending on downloading a cloud image from the Internet and reduces
    the execution time from 3:19 min down to 0:57 min. (LP: #2027575)

 -- Loïc Minier <loic.minier at ubuntu.com>  Tue, 25 Jul 2023 11:54:44
+0200

** Changed in: initramfs-tools (Ubuntu Jammy)
       Status: Fix Committed => Fix Released

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https://bugs.launchpad.net/bugs/2027575

Title:
  autopkgtest net is failing on 6.2 kernels with 'System is deadlocked
  on memory'

Status in initramfs-tools package in Ubuntu:
  Fix Released
Status in initramfs-tools source package in Jammy:
  Fix Released
Status in initramfs-tools source package in Lunar:
  Fix Released

Bug description:
  [Impact]
  In debian/tests/run-image we instantiate an image with 512Mb of ram, but recent jammy/lunar 6.2 kernels need more than that.

  Example of a test failure:
  https://autopkgtest.ubuntu.com/results/autopkgtest-lunar/lunar/amd64/i/initramfs-tools/20230619_135049_ab1cb@/log.gz

  'net' test fails with a kernel panic due to out-of-memory.

  It also relies on an existing and working cloud image. If the cloud
  image is not available, the test will silently succeed.

  [Fix]

  The net autopkgtest was ported to the common test framework in
  initramfs-tools 0.142ubuntu3. This makes the test more robust by
  relying on the minimum needed for the integration test.

  [Test Plan]

  Check that the autopkgtest succeed or test it manually:

  1. Download a lunar image:
  $ autopkgtest-buildvm-ubuntu-cloud -v -a amd64 -r lunar
  2. Run autotestpkg tests from initramfs-tools package. The "net" test is the one that depends on the image instantiated by 'run-image'. The testcase should complete successfully without the kernel panic.
  $ autopkgtest initramfs-tools -- qemu autopkgtest-lunar-amd64.img

  [Where problems could occur]
  The usage of a larger image for the tests could fail if the the test system is low on ram size.

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