I think you said that you created a new user and this still happens? My guess is that this is something to do with your .profile, .kshrc, etc. Don’t forget about the profile and rc files in /etc. I don’t recall which ones ksh93 loads. What OS is this on? > On Nov 5, 2019, at 11:03 AM, Nicholas Papadonis wrote: > > The "^L"s are coming from this trace. > > Is anyone running ksh93 in Emacs shell-mode? > > ) = ? ERESTARTNOHAND (To be restarted if no handler) > --- SIGWINCH {si_signo=SIGWINCH, si_code=SI_KERNEL} --- > rt_sigaction(SIGWINCH, {sa_handler=0x55e35c5a23b0, sa_mask=[], > sa_flags=SA_RESTORER|SA_INTERRUPT, sa_restorer=0x7ffb3cb91060}, > {sa_handler=0x55e35c5a23b0, sa_mask=[], sa_flags=SA_RESTORER|SA_INTERRUPT, > sa_restorer=0x7ffb3cb91060}, 8) = 0 > ioctl(2, TIOCGWINSZ, {ws_row=10, ws_col=102, ws_xpixel=0, ws_ypixel=0}) = 0 > rt_sigprocmask(SIG_UNBLOCK, [WINCH], NULL, 8) = 0 > rt_sigreturn({mask=[]}) = -1 EINTR (Interrupted system call) > ioctl(2, TIOCGWINSZ, {ws_row=10, ws_col=102, ws_xpixel=0, ws_ypixel=0}) = 0 > poll([], 0, 50) = 0 (Timeout) > ioctl(2, TIOCGWINSZ, {ws_row=10, ws_col=102, ws_xpixel=0, ws_ypixel=0}) = 0 > lseek(3, 0, SEEK_END) = 2 > lseek(3, 0, SEEK_CUR) = 2 > lseek(3, 2, SEEK_SET) = 2 > read(3, "", 65536) = 0 > lseek(3, 2, SEEK_SET) = 2 > read(3, "", 65536) = 0 > select(1, [0], NULL, NULL, {tv_sec=0, tv_usec=0}) = 0 (Timeout) > write(2, "> ", 3) = 3 > select(1, [0], NULL, NULL, NULL) = ? ERESTARTNOHAND (To be restarted > if no handler) > --- SIGWINCH {si_signo=SIGWINCH, si_code=SI_KERNEL} --- > rt_sigaction(SIGWINCH, {sa_handler=0x55e35c5a23b0, sa_mask=[], > sa_flags=SA_RESTORER|SA_INTERRUPT, sa_restorer=0x7ffb3cb91060}, > {sa_handler=0x55e35c5a23b0, sa_mask=[], sa_flags=SA_RESTORER|SA_INTERRUPT, > sa_restorer=0x7ffb3cb91060}, 8) = 0 > ioctl(2, TIOCGWINSZ, {ws_row=10, ws_col=103, ws_xpixel=0, ws_ypixel=0}) = 0 > rt_sigprocmask(SIG_UNBLOCK, [WINCH], NULL, 8) = 0 > rt_sigreturn({mask=[]}) = -1 EINTR (Interrupted system call) > ioctl(2, TIOCGWINSZ, {ws_row=10, ws_col=103, ws_xpixel=0, ws_ypixel=0}) = 0 > poll([], 0, 50) = 0 (Timeout) > ioctl(2, TIOCGWINSZ, {ws_row=10, ws_col=103, ws_xpixel=0, ws_ypixel=0}) = 0 > select(1, [0], NULL, NULL, {tv_sec=0, tv_usec=0}) = 0 (Timeout) > write(2, "> ", 3) = 3 > select(1, [0], NULL, NULL, NULL) = ? ERESTARTNOHAND (To be restarted > if no handler) > --- SIGWINCH {si_signo=SIGWINCH, si_code=SI_KERNEL} --- > rt_sigaction(SIGWINCH, {sa_handler=0x55e35c5a23b0, sa_mask=[], > sa_flags=SA_RESTORER|SA_INTERRUPT, sa_restorer=0x7ffb3cb91060}, > {sa_handler=0x55e35c5a23b0, sa_mask=[], sa_flags=SA_RESTORER|SA_INTERRUPT, > sa_restorer=0x7ffb3cb91060}, 8) = 0 > ioctl(2, TIOCGWINSZ, {ws_row=10, ws_col=104, ws_xpixel=0, ws_ypixel=0}) = 0 > rt_sigprocmask(SIG_UNBLOCK, [WINCH], NULL, 8) = 0 > rt_sigreturn({mask=[]}) = -1 EINTR (Interrupted system call) > ioctl(2, TIOCGWINSZ, {ws_row=10, ws_col=104, ws_xpixel=0, ws_ypixel=0}) = 0 > poll([], 0, 50) = 0 (Timeout) > ioctl(2, TIOCGWINSZ, {ws_row=10, ws_col=104, ws_xpixel=0, ws_ypixel=0}) = 0 > select(1, [0], NULL, NULL, {tv_sec=0, tv_usec=0}) = 0 (Timeout) > write(2, "> ", 3) = 3 > select(1, [0], NULL, NULL, NULL) = 1 (in [0]) > recvfrom(0, 0x7ffb3d814320, 65536, MSG_PEEK, NULL, NULL) = -1 ENOTSOCK > (Socket operation on non-socket) > read(0, "\n", 1) = 1 > lseek(3, 0, SEEK_END) = 2 > lseek(3, 0, SEEK_END) = 2 > lseek(3, 0, SEEK_CUR) = 2 > stat("/usr/bin/\f\f\f", 0x7ffc17e88250) = -1 ENOENT (No such file or > directory) > stat("/usr/sbin/\f\f\f", 0x7ffc17e88250) = -1 ENOENT (No such file or > directory) > stat("/bin/\f\f\f", 0x7ffc17e88250) = -1 ENOENT (No such file or > directory) > stat("/sbin/\f\f\f", 0x7ffc17e88250) = -1 ENOENT (No such file or > directory) > stat("/usr/local/bin/\f\f\f", 0x7ffc17e88250) = -1 ENOENT (No such file or > directory) > stat("/usr/local/sbin/\f\f\f", 0x7ffc17e88250) = -1 ENOENT (No such file or > directory) > stat("/usr/bin/\f\f\f", 0x7ffc17e88170) = -1 ENOENT (No such file or > directory) > stat("/usr/sbin/\f\f\f", 0x7ffc17e88170) = -1 ENOENT (No such file or > directory) > stat("/bin/\f\f\f", 0x7ffc17e88170) = -1 ENOENT (No such file or > directory) > stat("/sbin/\f\f\f", 0x7ffc17e88170) = -1 ENOENT (No such file or > directory) > stat("/usr/local/bin/\f\f\f", 0x7ffc17e88170) = -1 ENOENT (No such file or > directory) > stat("/usr/local/sbin/\f\f\f", 0x7ffc17e88170) = -1 ENOENT (No such file or > directory) > write(2, "\f\f: not found [No such file or d"..., 42) = 42 > lseek(3, 0, SEEK_END) = 2 > lseek(3, 2, SEEK_SET) = 2 > lseek(3, 2, SEEK_SET) = 2 > read(3, "", 65536) = 0 > write(2, "[debian:~]$ ", 12) = 12 > select(1, [0], NULL, NULL, NULL > > > On Tue, Nov 5, 2019 at 11:58 AM Nicholas Papadonis < > nick.papadonis.ml@gmail.com> wrote: > >> This is what the child ksh M-x shell process is doing when I resize the >> window. As you can see the write of "> " near the end. Hopefully some >> folks have more insight into this. >> >> select(1, [0], NULL, NULL, NULL) = ? ERESTARTNOHAND (To be >> restarted if no handler) >> --- SIGWINCH {si_signo=SIGWINCH, si_code=SI_KERNEL} --- >> rt_sigaction(SIGWINCH, {sa_handler=0x55e35c5a23b0, sa_mask=[], >> sa_flags=SA_RESTORER|SA_INTERRUPT, sa_restorer=0x7ffb3cb91060}, >> {sa_handler=0x55e35c5a23b0, sa_mask=[], sa_flags=SA_RESTORER|SA_INTERRUPT, >> sa_restorer=0x7ffb3cb91060}, 8) = 0 >> ioctl(2, TIOCGWINSZ, {ws_row=9, ws_col=102, ws_xpixel=0, ws_ypixel=0}) = 0 >> rt_sigprocmask(SIG_UNBLOCK, [WINCH], NULL, 8) = 0 >> rt_sigreturn({mask=[]}) = -1 EINTR (Interrupted system >> call) >> ioctl(2, TIOCGWINSZ, {ws_row=9, ws_col=102, ws_xpixel=0, ws_ypixel=0}) = 0 >> poll([], 0, 50) = 0 (Timeout) >> ioctl(2, TIOCGWINSZ, {ws_row=9, ws_col=102, ws_xpixel=0, ws_ypixel=0}) = 0 >> lseek(3, 0, SEEK_END) = 2 >> lseek(3, 0, SEEK_CUR) = 2 >> lseek(3, 2, SEEK_SET) = 2 >> read(3, "", 65536) = 0 >> lseek(3, 2, SEEK_SET) = 2 >> read(3, "", 65536) = 0 >> select(1, [0], NULL, NULL, {tv_sec=0, tv_usec=0}) = 0 (Timeout) >> write(2, "> ", 3) = 3 >> select(1, [0], NULL, NULL, NULL >> >> >> On Mon, Nov 4, 2019 at 8:57 PM Kurtis Rader wrote: >> >>> On Mon, Nov 4, 2019 at 4:19 PM Nicholas Papadonis < >>> nick.papadonis.ml@gmail.com> wrote: >>> >>>> When Emacs is invoked in an X-session and when I resize a M-x shell-mode >>>> *shell* window by more then a single line of text, $PS2 is being output in >>>> the shell mode window. When I type then a number of "^L"s are >>>> also output in the shell mode window. >>>> >>>> I'm using /bin/ksh93 in Debian. >>>> >>>> This behavior does not occur with bash. >>>> >>>> Does anyone know why this is happening? Also, more ways to debug it? >>>> >>> >>> No idea what's happening, but I wouldn't leap to the conclusion that $PS2 >>> is being displayed. Given the presence of the [ctrl-L] chars it's just as >>> likely that both chars are being sent to the shell. Possibly >>> bracketed-paste mode is enabled by the emacs shell mode. If you start the >>> shell, then in a different window strace it what appears in the trace when >>> you resize the window? Also, you might want to try the current development >>> version that you'll find at https://github.com/att/ast/ >>> . It's easy to build if you're >>> willing to install Meson. >>> >>> P.S., You might want to take a look at https://asciinema.org for >>> capturing terminal sessions for playback. >>> >>> -- >>> Kurtis Rader >>> Caretaker of the exceptional canines Junior and Hank >>> >>