diff --git a/src/channel.c b/src/channel.c
index 7c57442..1f41445 100644
--- a/src/channel.c
+++ b/src/channel.c
@@ -4746,50 +4746,57 @@
 	    {
 		if (!(supported2 & JO2_TERM_ROWS))
 		    break;
-		opt->jo_set |= JO2_TERM_ROWS;
+		opt->jo_set2 |= JO2_TERM_ROWS;
 		opt->jo_term_rows = get_tv_number(item);
 	    }
 	    else if (STRCMP(hi->hi_key, "term_cols") == 0)
 	    {
 		if (!(supported2 & JO2_TERM_COLS))
 		    break;
-		opt->jo_set |= JO2_TERM_COLS;
+		opt->jo_set2 |= JO2_TERM_COLS;
 		opt->jo_term_cols = get_tv_number(item);
 	    }
 	    else if (STRCMP(hi->hi_key, "vertical") == 0)
 	    {
 		if (!(supported2 & JO2_VERTICAL))
 		    break;
-		opt->jo_set |= JO2_VERTICAL;
+		opt->jo_set2 |= JO2_VERTICAL;
 		opt->jo_vertical = get_tv_number(item);
 	    }
 	    else if (STRCMP(hi->hi_key, "curwin") == 0)
 	    {
 		if (!(supported2 & JO2_CURWIN))
 		    break;
-		opt->jo_set |= JO2_CURWIN;
+		opt->jo_set2 |= JO2_CURWIN;
 		opt->jo_curwin = get_tv_number(item);
 	    }
 	    else if (STRCMP(hi->hi_key, "hidden") == 0)
 	    {
 		if (!(supported2 & JO2_HIDDEN))
 		    break;
-		opt->jo_set |= JO2_HIDDEN;
+		opt->jo_set2 |= JO2_HIDDEN;
 		opt->jo_hidden = get_tv_number(item);
 	    }
 	    else if (STRCMP(hi->hi_key, "norestore") == 0)
 	    {
 		if (!(supported2 & JO2_NORESTORE))
 		    break;
-		opt->jo_set |= JO2_NORESTORE;
+		opt->jo_set2 |= JO2_NORESTORE;
 		opt->jo_term_norestore = get_tv_number(item);
 	    }
+	    else if (STRCMP(hi->hi_key, "term_kill") == 0)
+	    {
+		if (!(supported2 & JO2_TERM_KILL))
+		    break;
+		opt->jo_set2 |= JO2_TERM_KILL;
+		opt->jo_term_kill = get_tv_string_chk(item);
+	    }
 #endif
 	    else if (STRCMP(hi->hi_key, "env") == 0)
 	    {
 		if (!(supported2 & JO2_ENV))
 		    break;
-		opt->jo_set |= JO2_ENV;
+		opt->jo_set2 |= JO2_ENV;
 		opt->jo_env = item->vval.v_dict;
 		++item->vval.v_dict->dv_refcount;
 	    }
@@ -4803,7 +4810,7 @@
 		    EMSG2(_(e_invargval), "cwd");
 		    return FAIL;
 		}
-		opt->jo_set |= JO2_CWD;
+		opt->jo_set2 |= JO2_CWD;
 	    }
 	    else if (STRCMP(hi->hi_key, "waittime") == 0)
 	    {
diff --git a/src/evalfunc.c b/src/evalfunc.c
index aa0ec60..1620efe 100644
--- a/src/evalfunc.c
+++ b/src/evalfunc.c
@@ -867,6 +867,7 @@
     {"term_list",	0, 0, f_term_list},
     {"term_scrape",	2, 2, f_term_scrape},
     {"term_sendkeys",	2, 2, f_term_sendkeys},
+    {"term_setkill",	2, 2, f_term_setkill},
     {"term_setrestore",	2, 2, f_term_setrestore},
     {"term_start",	1, 2, f_term_start},
     {"term_wait",	1, 2, f_term_wait},
diff --git a/src/ex_cmds2.c b/src/ex_cmds2.c
index 424bac8..ae4ce33 100644
--- a/src/ex_cmds2.c
+++ b/src/ex_cmds2.c
@@ -2254,7 +2254,7 @@
 /*
  * Return TRUE if any buffer was changed and cannot be abandoned.
  * That changed buffer becomes the current buffer.
- * When "unload" is true the current buffer is unloaded instead of making it
+ * When "unload" is TRUE the current buffer is unloaded instead of making it
  * hidden.  This is used for ":q!".
  */
     int
@@ -2272,6 +2272,7 @@
     tabpage_T   *tp;
     win_T	*wp;
 
+    /* Make a list of all buffers, with the most important ones first. */
     FOR_ALL_BUFFERS(buf)
 	++bufcount;
 
@@ -2284,17 +2285,19 @@
 
     /* curbuf */
     bufnrs[bufnum++] = curbuf->b_fnum;
-    /* buf in curtab */
+
+    /* buffers in current tab */
     FOR_ALL_WINDOWS(wp)
 	if (wp->w_buffer != curbuf)
 	    add_bufnum(bufnrs, &bufnum, wp->w_buffer->b_fnum);
 
-    /* buf in other tab */
+    /* buffers in other tabs */
     FOR_ALL_TABPAGES(tp)
 	if (tp != curtab)
 	    for (wp = tp->tp_firstwin; wp != NULL; wp = wp->w_next)
 		add_bufnum(bufnrs, &bufnum, wp->w_buffer->b_fnum);
-    /* any other buf */
+
+    /* any other buffer */
     FOR_ALL_BUFFERS(buf)
 	add_bufnum(bufnrs, &bufnum, buf->b_fnum);
 
@@ -2308,6 +2311,14 @@
 	    bufref_T bufref;
 
 	    set_bufref(&bufref, buf);
+#ifdef FEAT_TERMINAL
+	    if (term_job_running(buf->b_term))
+	    {
+		if (term_try_stop_job(buf) == FAIL)
+		    break;
+	    }
+	    else
+#endif
 	    /* Try auto-writing the buffer.  If this fails but the buffer no
 	    * longer exists it's not changed, that's OK. */
 	    if (check_changed(buf, (p_awa ? CCGD_AW : 0)
@@ -2320,6 +2331,7 @@
     if (i >= bufnum)
 	goto theend;
 
+    /* Get here if "buf" cannot be abandoned. */
     ret = TRUE;
     exiting = FALSE;
 #if defined(FEAT_GUI_DIALOG) || defined(FEAT_CON_DIALOG)
diff --git a/src/proto/terminal.pro b/src/proto/terminal.pro
index aefa40d..f7d06c0 100644
--- a/src/proto/terminal.pro
+++ b/src/proto/terminal.pro
@@ -2,11 +2,11 @@
 void ex_terminal(exarg_T *eap);
 int term_write_session(FILE *fd, win_T *wp);
 int term_should_restore(buf_T *buf);
-void f_term_setrestore(typval_T *argvars, typval_T *rettv);
 void free_terminal(buf_T *buf);
 void write_to_term(buf_T *buffer, char_u *msg, channel_T *channel);
 int term_job_running(term_T *term);
 int term_none_open(term_T *term);
+int term_try_stop_job(buf_T *buf);
 int term_in_normal_mode(void);
 void term_enter_job_mode(void);
 int send_keys_to_term(term_T *term, int c, int typed);
@@ -41,6 +41,8 @@
 void f_term_list(typval_T *argvars, typval_T *rettv);
 void f_term_scrape(typval_T *argvars, typval_T *rettv);
 void f_term_sendkeys(typval_T *argvars, typval_T *rettv);
+void f_term_setrestore(typval_T *argvars, typval_T *rettv);
+void f_term_setkill(typval_T *argvars, typval_T *rettv);
 void f_term_start(typval_T *argvars, typval_T *rettv);
 void f_term_wait(typval_T *argvars, typval_T *rettv);
 void term_send_eof(channel_T *ch);
diff --git a/src/structs.h b/src/structs.h
index d6959bc..db2792b 100644
--- a/src/structs.h
+++ b/src/structs.h
@@ -1707,7 +1707,8 @@
 #define JO2_TERM_OPENCMD    0x0800	/* "term_opencmd" */
 #define JO2_EOF_CHARS	    0x1000	/* "eof_chars" */
 #define JO2_NORESTORE	    0x2000	/* "norestore" */
-#define JO2_ALL		    0x2FFF
+#define JO2_TERM_KILL	    0x4000	/* "term_kill" */
+#define JO2_ALL		    0x7FFF
 
 #define JO_MODE_ALL	(JO_MODE + JO_IN_MODE + JO_OUT_MODE + JO_ERR_MODE)
 #define JO_CB_ALL \
@@ -1775,6 +1776,7 @@
     char_u	*jo_term_opencmd;
     int		jo_term_finish;
     char_u	*jo_eof_chars;
+    char_u	*jo_term_kill;
 #endif
 } jobopt_T;
 
diff --git a/src/terminal.c b/src/terminal.c
index 547897f..cc83055 100644
--- a/src/terminal.c
+++ b/src/terminal.c
@@ -137,6 +137,7 @@
 #if defined(FEAT_SESSION)
     char_u	*tl_command;
 #endif
+    char_u	*tl_kill;
 
     /* last known vterm size */
     int		tl_rows;
@@ -535,6 +536,13 @@
     }
 #endif
 
+    if (opt->jo_term_kill != NULL)
+    {
+	char_u *p = skiptowhite(opt->jo_term_kill);
+
+	term->tl_kill = vim_strnsave(opt->jo_term_kill, p - opt->jo_term_kill);
+    }
+
     /* System dependent: setup the vterm and maybe start the job in it. */
     if (argvar->v_type == VAR_STRING
 	    && argvar->vval.v_string != NULL
@@ -611,6 +619,13 @@
 	    opt.jo_hidden = 1;
 	else if ((int)(p - cmd) == 9 && STRNICMP(cmd, "norestore", 9) == 0)
 	    opt.jo_term_norestore = 1;
+	else if ((int)(p - cmd) == 4 && STRNICMP(cmd, "kill", 4) == 0
+		&& ep != NULL)
+	{
+	    opt.jo_set2 |= JO2_TERM_KILL;
+	    opt.jo_term_kill = ep + 1;
+	    p = skiptowhite(cmd);
+	}
 	else if ((int)(p - cmd) == 4 && STRNICMP(cmd, "rows", 4) == 0
 		&& ep != NULL && isdigit(ep[1]))
 	{
@@ -644,7 +659,7 @@
 	    if (*p)
 		*p = NUL;
 	    EMSG2(_("E181: Invalid attribute: %s"), cmd);
-	    return;
+	    goto theend;
 	}
 	cmd = skipwhite(p);
     }
@@ -667,6 +682,8 @@
     argvar[1].v_type = VAR_UNKNOWN;
     term_start(argvar, &opt, FALSE, eap->forceit);
     vim_free(tofree);
+
+theend:
     vim_free(opt.jo_eof_chars);
 }
 
@@ -758,6 +775,7 @@
 #ifdef FEAT_SESSION
     vim_free(term->tl_command);
 #endif
+    vim_free(term->tl_kill);
     vim_free(term->tl_status_text);
     vim_free(term->tl_opencmd);
     vim_free(term->tl_eof_chars);
@@ -1081,6 +1099,56 @@
 }
 
 /*
+ * Used when exiting: kill the job in "buf" if so desired.
+ * Return OK when the job finished.
+ * Return FAIL when the job is still running.
+ */
+    int
+term_try_stop_job(buf_T *buf)
+{
+    int	    count;
+    char    *how = (char *)buf->b_term->tl_kill;
+
+#if defined(FEAT_GUI_DIALOG) || defined(FEAT_CON_DIALOG)
+    if ((how == NULL || *how == NUL) && (p_confirm || cmdmod.confirm))
+    {
+	char_u	buff[DIALOG_MSG_SIZE];
+	int	ret;
+
+	dialog_msg(buff, _("Kill job in \"%s\"?"), buf->b_fname);
+	ret = vim_dialog_yesnocancel(VIM_QUESTION, NULL, buff, 1);
+	if (ret == VIM_YES)
+	    how = "kill";
+	else if (ret == VIM_CANCEL)
+	    return FAIL;
+    }
+#endif
+    if (how == NULL || *how == NUL)
+	return FAIL;
+
+    job_stop(buf->b_term->tl_job, NULL, how);
+
+    /* wait for up to a second for the job to die */
+    for (count = 0; count < 100; ++count)
+    {
+	/* buffer, terminal and job may be cleaned up while waiting */
+	if (!buf_valid(buf)
+		|| buf->b_term == NULL
+		|| buf->b_term->tl_job == NULL)
+	    return OK;
+
+	/* call job_status() to update jv_status */
+	job_status(buf->b_term->tl_job);
+	if (buf->b_term->tl_job->jv_status >= JOB_ENDED)
+	    return OK;
+	ui_delay(10L, FALSE);
+	mch_check_messages();
+	parse_queued_messages();
+    }
+    return FAIL;
+}
+
+/*
  * Add the last line of the scrollback buffer to the buffer in the window.
  */
     static void
@@ -2922,10 +2990,11 @@
 
 /*
  * Get the buffer from the first argument in "argvars".
- * Returns NULL when the buffer is not for a terminal window.
+ * Returns NULL when the buffer is not for a terminal window and logs a message
+ * with "where".
  */
     static buf_T *
-term_get_buf(typval_T *argvars)
+term_get_buf(typval_T *argvars, char *where)
 {
     buf_T *buf;
 
@@ -2934,7 +3003,10 @@
     buf = get_buf_tv(&argvars[0], FALSE);
     --emsg_off;
     if (buf == NULL || buf->b_term == NULL)
+    {
+	ch_log(NULL, "%s: invalid buffer argument", where);
 	return NULL;
+    }
     return buf;
 }
 
@@ -2980,7 +3052,7 @@
     void
 f_term_dumpwrite(typval_T *argvars, typval_T *rettv UNUSED)
 {
-    buf_T	*buf = term_get_buf(argvars);
+    buf_T	*buf = term_get_buf(argvars, "term_dumpwrite()");
     term_T	*term;
     char_u	*fname;
     int		max_height = 0;
@@ -3719,7 +3791,7 @@
     void
 f_term_getaltscreen(typval_T *argvars, typval_T *rettv)
 {
-    buf_T	*buf = term_get_buf(argvars);
+    buf_T	*buf = term_get_buf(argvars, "term_getaltscreen()");
 
     if (buf == NULL)
 	return;
@@ -3766,7 +3838,7 @@
     void
 f_term_getcursor(typval_T *argvars, typval_T *rettv)
 {
-    buf_T	*buf = term_get_buf(argvars);
+    buf_T	*buf = term_get_buf(argvars, "term_getcursor()");
     term_T	*term;
     list_T	*l;
     dict_T	*d;
@@ -3800,7 +3872,7 @@
     void
 f_term_getjob(typval_T *argvars, typval_T *rettv)
 {
-    buf_T	*buf = term_get_buf(argvars);
+    buf_T	*buf = term_get_buf(argvars, "term_getjob()");
 
     rettv->v_type = VAR_JOB;
     rettv->vval.v_job = NULL;
@@ -3828,7 +3900,7 @@
     void
 f_term_getline(typval_T *argvars, typval_T *rettv)
 {
-    buf_T	    *buf = term_get_buf(argvars);
+    buf_T	    *buf = term_get_buf(argvars, "term_getline()");
     term_T	    *term;
     int		    row;
 
@@ -3875,7 +3947,7 @@
     void
 f_term_getscrolled(typval_T *argvars, typval_T *rettv)
 {
-    buf_T	*buf = term_get_buf(argvars);
+    buf_T	*buf = term_get_buf(argvars, "term_getscrolled()");
 
     if (buf == NULL)
 	return;
@@ -3888,7 +3960,7 @@
     void
 f_term_getsize(typval_T *argvars, typval_T *rettv)
 {
-    buf_T	*buf = term_get_buf(argvars);
+    buf_T	*buf = term_get_buf(argvars, "term_getsize()");
     list_T	*l;
 
     if (rettv_list_alloc(rettv) == FAIL)
@@ -3907,7 +3979,7 @@
     void
 f_term_getstatus(typval_T *argvars, typval_T *rettv)
 {
-    buf_T	*buf = term_get_buf(argvars);
+    buf_T	*buf = term_get_buf(argvars, "term_getstatus()");
     term_T	*term;
     char_u	val[100];
 
@@ -3931,7 +4003,7 @@
     void
 f_term_gettitle(typval_T *argvars, typval_T *rettv)
 {
-    buf_T	*buf = term_get_buf(argvars);
+    buf_T	*buf = term_get_buf(argvars, "term_gettitle()");
 
     rettv->v_type = VAR_STRING;
     if (buf == NULL)
@@ -3947,7 +4019,7 @@
     void
 f_term_gettty(typval_T *argvars, typval_T *rettv)
 {
-    buf_T	*buf = term_get_buf(argvars);
+    buf_T	*buf = term_get_buf(argvars, "term_gettty()");
     char_u	*p;
     int		num = 0;
 
@@ -4005,7 +4077,7 @@
     void
 f_term_scrape(typval_T *argvars, typval_T *rettv)
 {
-    buf_T	    *buf = term_get_buf(argvars);
+    buf_T	    *buf = term_get_buf(argvars, "term_scrape()");
     VTermScreen	    *screen = NULL;
     VTermPos	    pos;
     list_T	    *l;
@@ -4114,7 +4186,7 @@
     void
 f_term_sendkeys(typval_T *argvars, typval_T *rettv)
 {
-    buf_T	*buf = term_get_buf(argvars);
+    buf_T	*buf = term_get_buf(argvars, "term_sendkeys()");
     char_u	*msg;
     term_T	*term;
 
@@ -4143,7 +4215,7 @@
 f_term_setrestore(typval_T *argvars UNUSED, typval_T *rettv UNUSED)
 {
 #if defined(FEAT_SESSION)
-    buf_T	*buf = term_get_buf(argvars);
+    buf_T	*buf = term_get_buf(argvars, "term_setrestore()");
     term_T	*term;
     char_u	*cmd;
 
@@ -4160,6 +4232,27 @@
 }
 
 /*
+ * "term_setkill(buf, how)" function
+ */
+    void
+f_term_setkill(typval_T *argvars UNUSED, typval_T *rettv UNUSED)
+{
+    buf_T	*buf = term_get_buf(argvars, "term_setkill()");
+    term_T	*term;
+    char_u	*how;
+
+    if (buf == NULL)
+	return;
+    term = buf->b_term;
+    vim_free(term->tl_kill);
+    how = get_tv_string_chk(&argvars[1]);
+    if (how != NULL)
+	term->tl_kill = vim_strsave(how);
+    else
+	term->tl_kill = NULL;
+}
+
+/*
  * "term_start(command, options)" function
  */
     void
@@ -4177,7 +4270,7 @@
 		JO2_TERM_NAME + JO2_TERM_FINISH + JO2_HIDDEN + JO2_TERM_OPENCMD
 		    + JO2_TERM_COLS + JO2_TERM_ROWS + JO2_VERTICAL + JO2_CURWIN
 		    + JO2_CWD + JO2_ENV + JO2_EOF_CHARS
-		    + JO2_NORESTORE) == FAIL)
+		    + JO2_NORESTORE + JO2_TERM_KILL) == FAIL)
 	return;
 
     if (opt.jo_vertical)
@@ -4194,13 +4287,10 @@
     void
 f_term_wait(typval_T *argvars, typval_T *rettv UNUSED)
 {
-    buf_T	*buf = term_get_buf(argvars);
+    buf_T	*buf = term_get_buf(argvars, "term_wait()");
 
     if (buf == NULL)
-    {
-	ch_log(NULL, "term_wait(): invalid argument");
 	return;
-    }
     if (buf->b_term->tl_job == NULL)
     {
 	ch_log(NULL, "term_wait(): no job to wait for");
diff --git a/src/testdir/test_terminal.vim b/src/testdir/test_terminal.vim
index 0e04abd..ef6b176 100644
--- a/src/testdir/test_terminal.vim
+++ b/src/testdir/test_terminal.vim
@@ -5,6 +5,7 @@
 endif
 
 source shared.vim
+source screendump.vim
 
 let s:python = PythonProg()
 
@@ -839,3 +840,48 @@
   call delete('Xescape')
   unlet g:job
 endfunc
+
+" Run Vim in a terminal, then start a terminal in that Vim with a kill
+" argument, check that :qall works.
+func Test_terminal_qall_kill_arg()
+  if !CanRunVimInTerminal()
+    return
+  endif
+  let buf = RunVimInTerminal('', {})
+
+  " Open a terminal window and wait for the prompt to appear
+  call term_sendkeys(buf, ":term ++kill=kill\<CR>")
+  call WaitFor({-> term_getline(buf, 10) =~ '\[running]'})
+  call WaitFor({-> term_getline(buf, 1) !~ '^\s*$'})
+
+  " make Vim exit, it will kill the shell
+  call term_sendkeys(buf, "\<C-W>:qall\<CR>")
+  call WaitFor({-> term_getstatus(buf) == "finished"})
+
+  " close the terminal window where Vim was running
+  quit
+endfunc
+
+" Run Vim in a terminal, then start a terminal in that Vim with a kill
+" argument, check that :qall works.
+func Test_terminal_qall_kill_func()
+  if !CanRunVimInTerminal()
+    return
+  endif
+  let buf = RunVimInTerminal('', {})
+
+  " Open a terminal window and wait for the prompt to appear
+  call term_sendkeys(buf, ":term\<CR>")
+  call WaitFor({-> term_getline(buf, 10) =~ '\[running]'})
+  call WaitFor({-> term_getline(buf, 1) !~ '^\s*$'})
+
+  " set kill using term_setkill()
+  call term_sendkeys(buf, "\<C-W>:call term_setkill(bufnr('%'), 'kill')\<CR>")
+
+  " make Vim exit, it will kill the shell
+  call term_sendkeys(buf, "\<C-W>:qall\<CR>")
+  call WaitFor({-> term_getstatus(buf) == "finished"})
+
+  " close the terminal window where Vim was running
+  quit
+endfunc
diff --git a/src/version.c b/src/version.c
index 89b6eef..727c21f 100644
--- a/src/version.c
+++ b/src/version.c
@@ -767,6 +767,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1593,
+/**/
     1592,
 /**/
     1591,