diff -Naur ceph-10.2.10-orig/src/common/dout.h ceph-10.2.10/src/common/dout.h
--- ceph-10.2.10-orig/src/common/dout.h	2017-10-04 16:19:25.000000000 +0200
+++ ceph-10.2.10/src/common/dout.h	2019-08-11 12:14:27.638297278 +0200
@@ -77,8 +77,9 @@
 
 // NOTE: depend on magic value in _ASSERT_H so that we detect when
 // /usr/include/assert.h clobbers our fancier version.
+// Which seems to be broken somehow....
 #define dendl std::flush;				\
-  _ASSERT_H->_log->submit_entry(_dout_e);		\
+  _dout_cct->_log->submit_entry(_dout_e);		\
     }						\
   } while (0)