[Bug 1983859] [NEW] tracker-extract crashes with SIGSYS when upgrading from 20.04 to 22.04

[Simon Chopin]

Public bug reported:

When upgrading Ubuntu Desktop from 20.04 to 22.04, there's often (pretty
much always) a crash from tracker-extract, as described in the following
error report:

https://errors.ubuntu.com/oops/d7866d85-14cc-11ed-a52b-fa163e55efd0

The crash occurs during the upgrade, which means it's fairly hard to
investigate exactly what's going on as apport fails to extract a stack
trace, the binaries being overwritten during the upgrade.

However, the crash occurs because of a unhandled SIGSYS, meaning a
seccomp filter issue. I've tried backporting this patch fixing a similar
issue:

https://gitlab.gnome.org/GNOME/tracker-
miners/-/commit/4cda983b02e49f6bd28b94a6b96c9fe7026887ef

but it doesn't apply, likely due to the code having diverged too much
since.

My proposal is thus to disable tracker-extract during upgrade, including
in all user sessions. I'm assuming that the new version will be enabled
automatically as its unit file changed name anyway.

** Affects: tracker (Ubuntu)
     Importance: High
         Status: Confirmed

** Affects: ubuntu-release-upgrader (Ubuntu)
     Importance: High
         Status: Confirmed


** Tags: fr-2595

** Also affects: ubuntu-release-upgrader (Ubuntu)
   Importance: Undecided
       Status: New

** Changed in: ubuntu-release-upgrader (Ubuntu)
       Status: New => Confirmed

** Changed in: ubuntu-release-upgrader (Ubuntu)
   Importance: Undecided => High

** Tags added: fr-2595

-- 
You received this bug notification because you are a member of Ubuntu
Foundations Bugs, which is subscribed to ubuntu-release-upgrader in
Ubuntu.
https://bugs.launchpad.net/bugs/1983859

Title:
  tracker-extract crashes with SIGSYS when upgrading from 20.04 to 22.04

Status in tracker package in Ubuntu:
  Confirmed
Status in ubuntu-release-upgrader package in Ubuntu:
  Confirmed

Bug description:
  When upgrading Ubuntu Desktop from 20.04 to 22.04, there's often
  (pretty much always) a crash from tracker-extract, as described in the
  following error report:

  https://errors.ubuntu.com/oops/d7866d85-14cc-11ed-a52b-fa163e55efd0

  The crash occurs during the upgrade, which means it's fairly hard to
  investigate exactly what's going on as apport fails to extract a stack
  trace, the binaries being overwritten during the upgrade.

  However, the crash occurs because of a unhandled SIGSYS, meaning a
  seccomp filter issue. I've tried backporting this patch fixing a
  similar issue:

  https://gitlab.gnome.org/GNOME/tracker-
  miners/-/commit/4cda983b02e49f6bd28b94a6b96c9fe7026887ef

  but it doesn't apply, likely due to the code having diverged too much
  since.

  My proposal is thus to disable tracker-extract during upgrade,
  including in all user sessions. I'm assuming that the new version will
  be enabled automatically as its unit file changed name anyway.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/tracker/+bug/1983859/+subscriptions