Done.
[Detaching after vfork from child process 650535]
[Detaching after vfork from child process 650536]
[Detaching after vfork from child process 650537]
[Detaching after vfork from child process 650538]
[Detaching after vfork from child process 650539]
[Detaching after vfork from child process 650540]
[Detaching after vfork from child process 650541]
[Detaching after vfork from child process 650542]
[Detaching after vfork from child process 650543]
[Detaching after vfork from child process 650544]
[Detaching after vfork from child process 650545]
[Detaching after vfork from child process 650546]
[Detaching after vfork from child process 650547]
[Detaching after vfork from child process 650729]
[Detaching after vfork from child process 650730]
[Detaching after vfork from child process 650731]
[Detaching after vfork from child process 650732]
Thread 1 "emacs" hit Breakpoint 1, delete_frame (frame=0x555558c02e05, force=0x0) at frame.c:1932
1932 {
(gdb) l
1927 * unconditionally. x_connection_closed and delete_terminal use this.
1928 * Any other value of FORCE implements the semantics described for
1929 * Fdelete_frame. */
1930 Lisp_Object
1931 delete_frame (Lisp_Object frame, Lisp_Object force)
1932 {
1933 struct frame *f = decode_any_frame (frame);
1934 struct frame *sf;
1935 struct kboard *kb;
1936 Lisp_Object frames, frame1;
(gdb) c
Continuing.
[Detaching after vfork from child process 650742]
[Detaching after vfork from child process 650964]
==================================================> here emacs can't edit, no cursor( cursor in edit area just disappeared)， but mouse pointer can select text in emacs and hover event also can trigger.
What should I do next ?