On Mon, 27 May 2024 18:44:56 +0900 Tatsuya S <[email protected]> wrote:
> On setting set_ftrace_pid, a extra entry generated by ftrace_pid_func() > is shown on stack trace(CONFIG_UNWINDER_FRAME_POINTER=y). > > [004] ..... 68.459382: <stack trace> > => 0xffffffffa00090af > => ksys_read > => __x64_sys_read > => x64_sys_call > => do_syscall_64 > => entry_SYSCALL_64_after_hwframe > > To resolve this issue, increment skip count > in function_stack_trace_call() if pids are set. Just a note, this isn't a "fix" but simply an improvement in output. I'm happy to take this (after testing and more reviewing), but it will be for the next merge window, and with a different subject line. "ftrace: Hide one more entry in stack trace when ftrace_pid is enabled" Or something like that. Thanks, -- Steve
