Hi! Could you share the kernel and apparmor version? I tested on mantic with the configuration below and I wasn't able to reproduce the failure for this specific test. I did see an unrelated dbus issue with the test suite and proposed a fixed on https://code.launchpad.net/~georgiag/qa-regression-testing/+git/qa-regression-testing/+merge/453056
georgia@sec-mantic-amd64:~/qrt-test-apparmor$ sudo ./test-apparmor.py ApparmorTestsuites.test_regression_testsuite [sudo] password for georgia: Skipping private tests preparing apparmor_4.0.0~alpha2-0ubuntu5.dsc... done (disabling ptrace for this test) . ---------------------------------------------------------------------- Ran 1 test in 574.715s OK georgia@sec-mantic-amd64:~/qrt-test-apparmor$ uname -a Linux sec-mantic-amd64 6.5.0-7-generic #7-Ubuntu SMP PREEMPT_DYNAMIC Fri Sep 29 09:14:56 UTC 2023 x86_64 x86_64 x86_64 GNU/Linux georgia@sec-mantic-amd64:~/qrt-test-apparmor$ apt-cache policy apparmor apparmor: Installed: 4.0.0~alpha2-0ubuntu5 Candidate: 4.0.0~alpha2-0ubuntu5 Version table: *** 4.0.0~alpha2-0ubuntu5 500 500 http://archive.ubuntu.com/ubuntu mantic/main amd64 Packages 100 /var/lib/dpkg/status georgia@sec-mantic-amd64:~/qrt-test-apparmor$ lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu Mantic Minotaur (development branch) Release: 23.10 Codename: mantic -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/2038443 Title: mantic:linux: ubuntu_qrt_apparmor: ApparmorTestsuites.test_regression_testsuiteattach_disconnected. Status in apparmor package in Ubuntu: New Status in linux package in Ubuntu: Confirmed Status in apparmor source package in Mantic: New Status in linux source package in Mantic: Confirmed Bug description: This might be apparmor, the test case, kernel or anything in between: 7720s running attach_disconnected 7720s Fatal Error (unix_fd_server): Unable to run test sub-executable To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/apparmor/+bug/2038443/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp