[Bug 2132001] Re: [needs-packaging] dgx-desktop-sbsa-gwdt-loader

Michael Hudson-Doyle 2132001 at bugs.launchpad.net
Thu Nov 20 18:00:22 UTC 2025


It seems simple enough. I have a few questions comments:

1) You should probably install the service to /usr/lib/systemd, not /lib/systemd I think
2) I don't think run_sbsa_gwdt_selective_enablement should be in the default PATH (Maybe /usr/libexec or something? Not sure)
3) The version number should have "ubuntu" in it. I think by my reading of https://documentation.ubuntu.com/project/how-ubuntu-is-made/concepts/version-strings/#version-native-packages the current expectation is that the version number would be something like "1.0ubuntu".
4) What is your plan for getting this into images? I see you have set Priority: important which would result in it being part of almost all images we make, is that appropriate?

I also can't help wondering if there is a better way. I assume you've
asked the kernel team if they would reconsider the blacklisting of this
module?

Sorry that's a lot of questions for a very simple package!

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Title:
  [needs-packaging] dgx-desktop-sbsa-gwdt-loader

Status in Ubuntu:
  New

Bug description:
  Git URL: git.launchpad.net/~antoinelassagne/+git/dgx-desktop-sbsa-gwdt-loader
  Upload: https://launchpad.net/~antoinelassagne/+archive/ubuntu/cypress/+packages?field.name_filter=dgx-desktop-sbsa-gwdt-loader&field.status_filter=published&field.series_filter=

  This package selectively load the sbsa_gwdt watchdog, which is
  necessary with certain platforms but blacklisted by default per kernel
  policy
  (https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1432837/comments/6).
  Without it, The Nvidia DGX Spark will reboot after 10 min of uptime,
  all the time.

  However blacklisted kernel modules can still be loaded with modprobe.
  This is a service that takes the modalias, looks for
  "NVIDIA_DGX_SPARK" into it, and modprobes the watchdog if it finds it.

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