From 218bfbfa67e665897b57259b367a8ded16a2c095 Mon Sep 17 00:00:00 2001
From: Ivan Maidanski <ivmai@mail.ru>
Date: Thu, 30 Nov 2017 01:10:20 +0300
Subject: [PATCH] Fix assertion violation about disabled cancel in
 try_to_collect_inner

* misc.c [!GC_DISABLE_INCREMENTAL && !KEEP_BACK_PTRS]
(GC_enable_incremental): Wrap GC_gcollect_inner and GC_read_dirty calls
into DISABLE/RESTORE_CANCEL.
---
 misc.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/misc.c b/misc.c
index 231d7d18..e28fbfff 100644
--- a/misc.c
+++ b/misc.c
@@ -1319,6 +1319,9 @@ GC_API void GC_CALL GC_enable_incremental(void)
         }
         if (GC_incremental && !GC_dont_gc) {
                                 /* Can't easily do it if GC_dont_gc.    */
+          IF_CANCEL(int cancel_state;)
+
+          DISABLE_CANCEL(cancel_state);
           if (GC_bytes_allocd > 0) {
             /* There may be unmarked reachable objects. */
             GC_gcollect_inner();
@@ -1327,6 +1330,7 @@ GC_API void GC_CALL GC_enable_incremental(void)
             /* clean since nothing can point to an      */
             /* unmarked object.                         */
           GC_read_dirty(FALSE);
+          RESTORE_CANCEL(cancel_state);
         }
       }
       UNLOCK();
-- 
2.50.1