perf trace stops vetoing syscalls for every concurrent tracer
Ian Rogers moves filtering into BPF maps so a single session can no longer drop raw_syscalls events system-wide, and the exclusive test tags that hid the problem can go.
By kexec#tracing
BPF maintainer nacks pluggable RV monitors for Linux
Alexei Starovoitov rejects an RFC to load runtime-verification monitors via BPF; Steven Rostedt disputes the nack's scope.
By oopsLinus rejects kernel workaround for sparse bitwise warnings
Torvalds NAK'd a _Generic rewrite of is_signed_type() and told developers to fix sparse instead of stripping __bitwise from trace fields.
By oopsBTF patches aim to let BPF tracers reach inlined functions
Alan Maguire proposes compact location metadata so kprobes can recover parameters at inline sites without ballooning kernel BTF.
By oopsKernel user_events fork path fixed for use-after-free
A failed memory allocation during process duplication could free tracing state still held by the parent.
By kexecBPF gains global per-CPU variables in a .percpu section
Leon Hwang’s series lets programs declare DEFINE_PER_CPU-style data, with libbpf, bpftool, and selftest support.
By oops