Maintainers already fixed the issue, so we just needed to backport their patch.
Test package can be found here: https://launchpad.net/~alessiofaina/+archive/ubuntu/dkms-build-tests/+packages Patch sent upstream to Debian salsa: https://salsa.debian.org/debian/lttng-modules/-/merge_requests/8 autopkgtest results ================================================================================== I: Testing if lttng-modules modules are correctly installed. lttng-modules/2.15.0/7.0.0-3-generic/x86_64/log/make.log lttng-modules/2.15.0/6.19.0-9-generic/x86_64/log/make.log lttng-modules/2.15.0, 7.0.0-3-generic, x86_64: installed I: Summary: I: PASS lttng-modules/2.15.0 6.19.0-9-generic I: PASS lttng-modules/2.15.0 7.0.0-3-generic /tmp/autopkgtest.jBR3ET/wrapper.sh: Killing leaked background processes: 18625 PID TTY STAT TIME COMMAND 18625 hvc1 S+ 0:00 sleep 3 autopkgtest [16:02:43]: test dkms-autopkgtest: -----------------------] autopkgtest [16:02:43]: test dkms-autopkgtest: - - - - - - - - - - results - - - - - - - - - - dkms-autopkgtest PASS (superficial) autopkgtest [16:02:44]: @@@@@@@@@@@@@@@@@@@@ summary dkms-autopkgtest PASS (superficial) ================================================================================== Test on local kernel 7.0.0.6 machine ================================================================================== root@ubuntu-resolute:/home/afaina/dkms/resolute/lttng-modules-dkms/logs# ./test.sh lttng_probe_workqueue 20480 0 lttng_tracer 4440064 60 lttng_probe_udp,lttng_probe_scsi,lttng_probe_sched,lttng_probe_net,lttng_probe_vmscan,lttng_probe_writeback,lttng_probe_power,lttng_probe_rcu,lttng_probe_module,lttng_ring_buffer_client_mmap_overwrite,lttng_probe_statedump,lttng_ring_buffer_client_discard,lttng_probe_printk,lttng_probe_sock,lttng_probe_asoc,lttng_counter_client_percpu_64_modular,lttng_probe_irq,lttng_ring_buffer_client_mmap_discard,lttng_probe_kvm,lttng_probe_timer,lttng_ring_buffer_event_notifier_client,lttng_counter_client_percpu_32_modular,lttng_probe_workqueue,lttng_probe_jbd2,lttng_probe_signal,lttng_probe_skb,lttng_probe_block,lttng_probe_napi,lttng_ring_buffer_metadata_client,lttng_ring_buffer_metadata_mmap_client,lttng_probe_gpio,lttng_ring_buffer_client_overwrite,lttng_probe_regulator,lttng_probe_sunrpc Session wq-test created. Traces will be output to /root/lttng-traces/wq-test-20260312-165318 Enabled kernel event rule with pattern `workqueue_*` and attached to channel `channel0` Tracing started for session `wq-test` Waiting for data availability. Tracing stopped for session `wq-test` [16:53:18.833985565] (+?.?????????) ubuntu-resolute workqueue_queue_work: { cpu_id = 12 }, { work = 0xFFFFFFFFC10AC160, function = 0xFFFFFFFFC0B80A50, req_cpu = 0 } [16:53:18.833986803] (+0.000001238) ubuntu-resolute workqueue_activate_work: { cpu_id = 12 }, { work = 0xFFFFFFFFC10AC160 } [16:53:18.833989901] (+0.000003098) ubuntu-resolute workqueue_queue_work: { cpu_id = 12 }, { work = 0xFFFFFFFFC10AC1B8, function = 0xFFFFFFFFC0B80A50, req_cpu = 1 } [16:53:18.833990037] (+0.000000136) ubuntu-resolute workqueue_activate_work: { cpu_id = 12 }, { work = 0xFFFFFFFFC10AC1B8 } [16:53:18.833992299] (+0.000002262) ubuntu-resolute workqueue_queue_work: { cpu_id = 12 }, { work = 0xFFFFFFFFC10AC210, function = 0xFFFFFFFFC0B80A50, req_cpu = 2 } [16:53:18.833992414] (+0.000000115) ubuntu-resolute workqueue_activate_work: { cpu_id = 12 }, { work = 0xFFFFFFFFC10AC210 } [16:53:18.833994216] (+0.000001802) ubuntu-resolute workqueue_queue_work: { cpu_id = 12 }, { work = 0xFFFFFFFFC10AC268, function = 0xFFFFFFFFC0B80A50, req_cpu = 3 } [16:53:18.833994321] (+0.000000105) ubuntu-resolute workqueue_activate_work: { cpu_id = 12 }, { work = 0xFFFFFFFFC10AC268 } [16:53:18.833996424] (+0.000002103) ubuntu-resolute workqueue_queue_work: { cpu_id = 12 }, { work = 0xFFFFFFFFC10AC2C0, function = 0xFFFFFFFFC0B80A50, req_cpu = 4 } [16:53:18.833996530] (+0.000000106) ubuntu-resolute workqueue_activate_work: { cpu_id = 12 }, { work = 0xFFFFFFFFC10AC2C0 } [16:53:18.833999058] (+0.000002528) ubuntu-resolute workqueue_queue_work: { cpu_id = 12 }, { work = 0xFFFFFFFFC10AC318, function = 0xFFFFFFFFC0B80A50, req_cpu = 5 } [16:53:18.833999164] (+0.000000106) ubuntu-resolute workqueue_activate_work: { cpu_id = 12 }, { work = 0xFFFFFFFFC10AC318 } [16:53:18.834001245] (+0.000002081) ubuntu-resolute workqueue_queue_work: { cpu_id = 12 }, { work = 0xFFFFFFFFC10AC370, function = 0xFFFFFFFFC0B80A50, req_cpu = 6 } [16:53:18.834001350] (+0.000000105) ubuntu-resolute workqueue_activate_work: { cpu_id = 12 }, { work = 0xFFFFFFFFC10AC370 } [16:53:18.834003427] (+0.000002077) ubuntu-resolute workqueue_queue_work: { cpu_id = 12 }, { work = 0xFFFFFFFFC10AC3C8, function = 0xFFFFFFFFC0B80A50, req_cpu = 7 } [16:53:18.834003528] (+0.000000101) ubuntu-resolute workqueue_activate_work: { cpu_id = 12 }, { work = 0xFFFFFFFFC10AC3C8 } [16:53:18.834005622] (+0.000002094) ubuntu-resolute workqueue_queue_work: { cpu_id = 12 }, { work = 0xFFFFFFFFC10AC420, function = 0xFFFFFFFFC0B80A50, req_cpu = 8 } [16:53:18.834005722] (+0.000000100) ubuntu-resolute workqueue_activate_work: { cpu_id = 12 }, { work = 0xFFFFFFFFC10AC420 } [16:53:18.834008269] (+0.000002547) ubuntu-resolute workqueue_queue_work: { cpu_id = 12 }, { work = 0xFFFFFFFFC10AC478, function = 0xFFFFFFFFC0B80A50, req_cpu = 9 } [16:53:18.834008373] (+0.000000104) ubuntu-resolute workqueue_activate_work: { cpu_id = 12 }, { work = 0xFFFFFFFFC10AC478 } root@ubuntu-resolute:/home/afaina/dkms/resolute/lttng-modules-dkms/logs# root@ubuntu-resolute:/home/afaina/dkms/resolute/lttng-modules-dkms/logs# uname -a Linux ubuntu-resolute 7.0.0-6-generic #6-Ubuntu SMP PREEMPT_DYNAMIC Mon Mar 9 17:53:15 UTC 2026 x86_64 GNU/Linux root@ubuntu-resolute:/home/afaina/dkms/resolute/lttng-modules-dkms/logs# ================================================================================== ** Patch added: "resolute_dkms.patch" https://bugs.launchpad.net/ubuntu/+source/lttng-modules/+bug/2143995/+attachment/5951590/+files/resolute_dkms.patch -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2143995 Title: lttng-modules DKMS 2.15.0 fails to build in Kernel 7 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/lttng-modules/+bug/2143995/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
