Re: [Crash-utility] [PATCH] extensions/trace: Fix ftrace_get_event_type_name()

The recent kernel change dcb0b5575d24 ("tracing: Remove TRACE_EVENT_FL_USE_CALL_FILTER logic") changed the bit index so it makes checking TRACE_EVENT_FL_TRACEPOINT flag failed. It should be 0x20 for newer kernels. Without this patch, the crash tool refused to load trace.so extension due to invalid access to event names: crash> extend trace.so extend: /path/to/crash/extensions/trace.so: no commands registered: shared object unloaded Instead of using the hard-coded value, read the enum value from the kernel dynamically. Reported-by: Minchan Kim <minchan(a)kernel.org&gt; Cc: Steven Rostedt <rostedt(a)goodmis.org&gt; Signed-off-by: Namhyung Kim <namhyung(a)gmail.com&gt;