This is a stable release announcement for the LTTng kernel tracer,
an out-of-tree kernel tracer for the Linux kernel.
This 2.13.18 release mainly introduces support for newer vanilla and
distribution kernels. It also updates the generated system call
instrumentation for 32-bit ARM, 64-bit ARM, x86-32, and x86-64
so the more recent system calls (up to kernel 6.0) are instrumented
in with detailed semantics.
The LTTng project provides low-overhead, correlated userspace and
kernel tracing on Linux. Its use of the Common Trace Format and a
flexible control interface allows it to fulfill various workloads.
* Detailed change log:
2025-04-14 (National Gardening Day) 2.13.18
* Fix: trace_balance_dirty_pages parameters changed in Linux v6.14.2
* Fix: trace_balance_dirty_pages parameters changed in Linux v6.15-rc1
* Fix: Generic `compat_sys_rt_sigaction` did not exist prior to Linux
3.9
* fix: Add missing 'pselect6_time32' and 'ppoll_time32' syscall
overrides
* Build fix: arm64: incomplete landlock_rule_type type
* Fix: define old_sigaction as compat_old_sigaction in arm32 compat
* Fix: Use ifdef for CONFIG_COMPAT_OLD_SIGACTION
* Fix: system call instrumentation build failure on v3.0-v3.10 RT kernel
* Fix: add missing typedef and forward declarations for old kernels
* Add generated arm-32 syscall instrumentation for kernel 6.0.7
* Add generated x86-32 syscall instrumentation for kernel 6.0.7
* Fix: define old_sigaction as compat_old_sigaction in x86-32 compat
* Add generated arm-64 syscall instrumentation for kernel 6.0.7
* Add generated x86-64 syscall instrumentation for kernel 6.0.7
* syscall instrumentation: add missing forward declarations for old
kernels
* Revert "Fix: powerpc builds with linux v6.13"
* Fix: jbd2 tid type changed in SLE15 SP5
* Fix: migratepages removed from compaction_migratepages in SLE15 SP5
* Fix: block request field `rq_disk` removed in SLE15 SP5
* Fix: REQ_OP_WRITE_SAME removed in SLE15 SP5
* Fix: genhd.h removed in SLE15 SP5
* Fix: Missing scsi/scsi_request.h with SLE15 SP5
* Fix: powerpc builds with linux v6.13
Project website: https://lttng.org
Documentation: https://lttng.org/docs
Download link: https://lttng.org/download
Enjoy!
Mathieu
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Mathieu Desnoyers
EfficiOS Inc.
https://www.efficios.com
