# HG changeset patch
# User Christian Brabandt <cb@256bit.org>
# Date 1464722106 -7200
# Node ID c2fe86f2bda155996f570d56b632f73a9d4ab00f
# Parent  b780d4eac8c735a4ec787e546650b6c5e4523854
commit https://github.com/vim/vim/commit/e3188e261569ae512fb1ae2653b57fdd9e259ca3
Author: Bram Moolenaar <Bram@vim.org>
Date:   Tue May 31 21:13:04 2016 +0200

    patch 7.4.1860
    Problem:    Using a partial for timer_start() may cause a crash.
    Solution:   Set the copyID in timer objects. (Ozaki Kiichi)

diff --git a/src/eval.c b/src/eval.c
--- a/src/eval.c
+++ b/src/eval.c
@@ -7046,6 +7046,10 @@ garbage_collect(int testing)
     abort = abort || set_ref_in_nb_channel(copyID);
 #endif
 
+#ifdef FEAT_TIMERS
+    abort = abort || set_ref_in_timer(copyID);
+#endif
+
     if (!abort)
     {
 	/*
diff --git a/src/ex_cmds2.c b/src/ex_cmds2.c
--- a/src/ex_cmds2.c
+++ b/src/ex_cmds2.c
@@ -1252,6 +1252,25 @@ stop_timer(timer_T *timer)
     remove_timer(timer);
     free_timer(timer);
 }
+
+/*
+ * Mark references in partials of timers.
+ */
+    int
+set_ref_in_timer(int copyID)
+{
+    int		abort = FALSE;
+    timer_T	*timer;
+    typval_T	tv;
+
+    for (timer = first_timer; timer != NULL; timer = timer->tr_next)
+    {
+	tv.v_type = VAR_PARTIAL;
+	tv.vval.v_partial = timer->tr_partial;
+	abort = abort || set_ref_in_item(&tv, copyID, NULL, NULL);
+    }
+    return abort;
+}
 # endif
 
 #if defined(FEAT_SYN_HL) && defined(FEAT_RELTIME) && defined(FEAT_FLOAT)
diff --git a/src/proto/ex_cmds2.pro b/src/proto/ex_cmds2.pro
--- a/src/proto/ex_cmds2.pro
+++ b/src/proto/ex_cmds2.pro
@@ -22,6 +22,7 @@ timer_T *create_timer(long msec, int rep
 long check_due_timer(void);
 timer_T *find_timer(int id);
 void stop_timer(timer_T *timer);
+int set_ref_in_timer(int copyID);
 void profile_divide(proftime_T *tm, int count, proftime_T *tm2);
 void profile_add(proftime_T *tm, proftime_T *tm2);
 void profile_self(proftime_T *self, proftime_T *total, proftime_T *children);
diff --git a/src/testdir/test_timers.vim b/src/testdir/test_timers.vim
--- a/src/testdir/test_timers.vim
+++ b/src/testdir/test_timers.vim
@@ -8,6 +8,10 @@ func MyHandler(timer)
   let s:val += 1
 endfunc
 
+func MyHandlerWithLists(lists, timer)
+  let x = string(a:lists)
+endfunc
+
 func Test_oneshot()
   let s:val = 0
   let timer = timer_start(50, 'MyHandler')
@@ -42,4 +46,10 @@ func Test_with_partial_callback()
   sleep 200m
   call assert_equal(1, s:val)
 endfunc
+
+func Test_retain_partial()
+  call timer_start(100, function('MyHandlerWithLists', [['a']]))
+  call test_garbagecollect_now()
+  sleep 200m
+endfunc
 " vim: ts=2 sw=0 et
diff --git a/src/version.c b/src/version.c
--- a/src/version.c
+++ b/src/version.c
@@ -754,6 +754,8 @@ static char *(features[]) =
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1860,
+/**/
     1859,
 /**/
     1858,