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This release addresses a number of issues listed below. 2026-06-05 lttng-tools 2.15.1 (National Fish and Chip Day) * Fix: tests: Set mip version for python defined bt graphs explicitly * Fix: Include 32-bit kernel trace expect file in dist * build: Fix api-doc help string indentation * build: Fix enable-werror help string indentation * Fix: various typos in license identifiers * tests: fix preload of liblttng-ust-ctl-fuzz.so with '-Wl,-z,now' * tests: Handle WaitTraceTestApplications that crash early with no stderr * Fix: sessiond: abort when loading an agent session configuration * Fix: tests: missing shell quoting of filter expressions in test harness * Fix: tests: swapped allowed value types for process attribute trackers * Fix: relayd: wrong session id used in trace chunk existence check * Fix: lttng: truncated session name when it contains spaces * common: Split CPU mask parsing from reading * Fix: parsing CPU mask with no separators * Fix: common: Improve cpu mask error checking * common: Escape newlines when printing CPU mask * tests: Disable watchdog-timer for blocking tests * sessiond: Fix: Deadlock when handling notification overflow * tests: add test_condition to the unit test list * tests: add notification/test_rotation to the regression test list * tests: Fix rotation notification test when tmpdir contains symlink * Fix: tests: race in rotation notification test * Fix: tests: undefined CHANNEL_NAME in rotation notification test * Fix: relayd: live viewer reads wrong chunk after per-PID clear * Fix: lttng: vague error reporting in reclaim-memory command * Fix: consumerd: pause testpoint not re-evaluated after poll() * consumerd: Fix segfault when starting metadata switch timer * tests: Check kernel release to determine delay table parameters * Fix: tests: consumer pause testpoint FIFO EOF mishandled as error * Fix: tests: serial runner produces empty log files for hanging tests * tests: Fix platform uname split when release contains more periods * Fix: common: uri_compare compares uninitialized union tail * Fix: common: drop :: qualifier on *_CLOEXEC for musl compatibility * doc: lttng-view(1): remove non-existent '--session' option * lttng: handle popt parsing errors * fix: '-Wsuggest-override' only valid for C++ warnings * Fix: handle failures to find pid cmdline * Fix: tests: Do not use both `-p` and `-t` together for mktemp * Fix: common: lockfile fd leaks into consumerd via fork+exec * Fix: sessiond: default kernel probe list missing 9p and dma-fence * tests: fix: lttng-sessiond abort when using libkmod * Fix: common: lttng client abort when serializing rotate-session action * Fix: common: stop-session action serialized as start-session in MI * Fix: common: MI XSD names start/stop-session actions without "_session" * Fix: common: MI XSD rejects add-context per-context success element * Fix: common: MI XSD names snapshot record action "record-output" * Fix: lttng: reclaim-memory MI emits generic "channels" element * Fix: common: enable-event MI emits duplicate exclusions element As always, please report any issue you may encounter to bugs.lttng.org or on this mailing list. Project website: https://lttng.org Download link: https://lttng.org/files/lttng-tools/lttng-tools-2.15.1.tar.bz2 GPG signature: https://lttng.org/files/lttng-tools/lttng-tools-2.15.1.tar.bz2.asc