emacs26 on i386 linux,

two sessions both su from root to a normal user ( #su - user )

1$ emacs -nw -q --fg-daemon


### I should run "script /dev/null" first, but didn't
2$ emacsclient -t
*ERROR*: Could not open file: /dev/pts/2
2$ emacsclient -t
### daemon crash here.

Thread 1 "emacs" received signal SIGSEGV, Segmentation fault.
__strcmp_sse4_2 () at ../sysdeps/i386/i686/multiarch/strcmp-sse4.S:229
229     ../sysdeps/i386/i686/multiarch/strcmp-sse4.S: No such file or
directory.
(gdb) bt
#0  __strcmp_sse4_2 () at ../sysdeps/i386/i686/multiarch/strcmp-sse4.S:229
#1  0x080f2812 in get_named_terminal ()
#2  0x080f0e7b in init_tty ()
#3  0x08068579 in Fmake_terminal_frame ()
#4  0x0819f00a in Ffuncall ()
#5  0x081d9f38 in exec_byte_code ()
#6  0x0819ec9b in funcall_lambda ()
#7  0x0819ef6b in Ffuncall ()
#8  0x081d9f38 in exec_byte_code ()
#9  0x0819ec9b in funcall_lambda ()
#10 0x0819ef6b in Ffuncall ()
#11 0x081a0c1c in Fapply ()
#12 0x0819f00a in Ffuncall ()



looks like in terminal.c get_named_terminal(), the first parameter of
strcmp() is NULL