Debian Patches

Status for lttng-modules/2.15.1-2

Patch	Description	Author	Forwarded	Bugs	Origin	Last update
fix-linux-rt-4.9-sched.patch	Fix build of sched instrumentation on linux-rt >= 4.9.27-rt8		no
0001-fix-hrtimer-Reduce-trace-noise-in-hrtimer_start-v7.1.patch	[PATCH lttng-modules] fix: hrtimer: Reduce trace noise in hrtimer_start() (v7.1) See upstream commit: commit f2e388a019e4cf83a15883a3d1f1384298e9a6aa Author: Thomas Gleixner <tglx@kernel.org> Date: Tue Feb 24 17:36:59 2026 +0100 hrtimer: Reduce trace noise in hrtimer_start() hrtimer_start() when invoked with an already armed timer traces like: <comm>-.. [032] d.h2. 5.002263: hrtimer_cancel: hrtimer= .... <comm>-.. [032] d.h1. 5.002263: hrtimer_start: hrtimer= .... Which is incorrect as the timer doesn't get canceled. Just the expiry time changes. The internal dequeue operation which is required for that is not really interesting for trace analysis. But it makes it tedious to keep real cancellations and the above case apart. Remove the cancel tracing in hrtimer_start() and add a 'was_armed' indicator to the hrtimer start tracepoint, which clearly indicates what the state of the hrtimer is when hrtimer_start() is invoked: <comm>-.. [032] d.h1. 6.200103: hrtimer_start: hrtimer= .... was_armed=0 <comm>-.. [032] d.h1. 6.200558: hrtimer_start: hrtimer= .... was_armed=1	Michael Jeanson <mjeanson@efficios.com>	no			2026-05-25