Hi Steven, These are differences in commits between both libtracevent implementations, in trace-cmd and in kernel. Please look at them, I'm going to synchronize both trees according to this list. trace-cmd/traceevent commits, should be added in kernel/traceevent: "trace-cmd: Introduced new traceevent API, for adding new plugins directories." https://git.kernel.org/pub/scm/linux/kernel/git/rostedt/trace-cmd.git/commit/?id=5c8ac22552af4213f81cb7839f7f262252a80855 "trace-cmd: Optimize pretty_print() function" https://git.kernel.org/pub/scm/linux/kernel/git/rostedt/trace-cmd.git/commit/?id=d8c1349f44ca9ac8ef0e7f198a133603ea399a95 "trace-cmd: Move plugin options from trace-cmd to libtraceevent." https://git.kernel.org/pub/scm/linux/kernel/git/rostedt/trace-cmd.git/commit/?id=5988d3085d9ec5d7418ad49bc8c7e88c832d5ac5 "trace-cmd: Remove trace-cmd plugin handling routines" https://git.kernel.org/pub/scm/linux/kernel/git/rostedt/trace-cmd.git/commit/?id=b2cf2e46a6d013d4037118274cc783570277ce32 "trace-cmd: Add proper KBUFFER_TYPE_TIME_STAMP handling" https://git.kernel.org/pub/scm/linux/kernel/git/rostedt/trace-cmd.git/commit/?id=e5de44dd43523764d18dc773f82ce1b738c22e64 "trace-cmd: Add --debug to trace-cmd report" https://git.kernel.org/pub/scm/linux/kernel/git/rostedt/trace-cmd.git/commit/?id=8cdbccd5ef422dc518e7246aa1c41922e834120b trace-cmd/traceevent/plugins commits, should be added in kernel/traceevent/plugins: "trace-cmd report: Add -O offset for function plugin" https://git.kernel.org/pub/scm/linux/kernel/git/rostedt/trace-cmd.git/commit/?id=1785022e12cf0079889c519ffc7157f2143326ea "trace-cmd: Move kernel_stack event handler to "function" plugin." https://git.kernel.org/pub/scm/linux/kernel/git/rostedt/trace-cmd.git/commit/?id=8ba49dad8877fbd27cd6659397a01fb9243f7953 "tools lib traceevent: Add builtin handler for trace_marker_raw" https://git.kernel.org/pub/scm/linux/kernel/git/rostedt/trace-cmd.git/commit/?id=d9f4b4043a68602f869c8c73b499cd7c7b4194b9 "trace-cmd: Add plugin for decoding syscalls/sys_enter_futex" https://git.kernel.org/pub/scm/linux/kernel/git/rostedt/trace-cmd.git/commit/?id=25224f44a75e2ede5c2085683c0a008980ca87e7 "Change to SPDX License format" https://git.kernel.org/pub/scm/linux/kernel/git/rostedt/trace-cmd.git/commit/?id=ff551288621dd07e9a9da433cb5b9f539c025cb6 "trace-cmd: Add more SVM exit reasons" https://git.kernel.org/pub/scm/linux/kernel/git/rostedt/trace-cmd.git/commit/?id=4421d9551b903d720bb8534a02c3564187eab045 "trace-cmd: Add plugin for tlb_flush" https://git.kernel.org/pub/scm/linux/kernel/git/rostedt/trace-cmd.git/commit/?id=7a0ead47bdb85288c855fafae24719b1ca9b907e "trace-cmd: Add hack to report out blktrace" https://git.kernel.org/pub/scm/linux/kernel/git/rostedt/trace-cmd.git/commit/?id=9e0fd22b14805a3a3219a99bc5eccebf70f5484a kernel/traceevent/plugins commits, should be added in trace-cmd/traceevent/plugins: "libtraceevent: Remove unneeded semicolon" https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=eebe80c982546ce1041b7dcf3c461406f1e7e88f "tools lib traceevent: Fix memory leakage in filter_event" https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f84ae29a6169318f9c929720c49d96323d2bbab9 "tools lib traceevent: Take care of return value of asprintf" https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f8ff18be1f5c6ba1c2befb043bea6e7eaf9f8987 "tools lib traceevent: Added support for pkg-config" https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=cc03e1a8f82dff36fb329469c28cbfe7d2e6156a "tools lib traceevent: Remove hard coded install paths from pkg-config file" https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=53dbabfe50262eeebb56ce18789c3c885f15e6ac kernel/traceevent/plugins commits, should be added in trace-cmd/traceevent/plugins: "tools lib traceevent: update KVM plugin" https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=2f465deef7ce8c722121b782dd91c284f5ae80ca -- Tzvetomir (Ceco) Stoyanov VMware Open Source Technology Center