diff --git a/src/osd/osd.cpp b/src/osd/osd.cpp
index 9af3d1e8..7471edb5 100644
--- a/src/osd/osd.cpp
+++ b/src/osd/osd.cpp
@@ -326,9 +326,8 @@ void osd_t::parse_config(bool init)
     scrub_list_limit = config["scrub_list_limit"].uint64_value();
     if (!scrub_list_limit)
         scrub_list_limit = 262144;
-    pg_reshard_chunk_size = config["pg_reshard_chunk_size"].uint64_value();
-    if (!pg_reshard_chunk_size)
-        pg_reshard_chunk_size = 100000;
+    // FIXME: chunked resharding disabled for now, will be re-enabled after fixes
+    pg_reshard_chunk_size = 0;
     pg_reshard_chunk_pause_ms = config["pg_reshard_chunk_pause_ms"].uint64_value();
     if (!pg_reshard_chunk_pause_ms)
         pg_reshard_chunk_pause_ms = 100;
diff --git a/src/osd/osd.h b/src/osd/osd.h
index 2c17576b..8a4293b8 100644
--- a/src/osd/osd.h
+++ b/src/osd/osd.h
@@ -151,7 +151,7 @@ class osd_t
     bool enable_pg_locks = false;
     bool pg_locks_localize_only = false;
     uint64_t pg_lock_retry_interval_ms = 100;
-    uint64_t pg_reshard_chunk_size = 100000;
+    uint64_t pg_reshard_chunk_size = 0;
     uint64_t pg_reshard_chunk_pause_ms = 100;
 
     // cluster state