Add a regression test for scrub bitmap comparison (EC 3+3, only chunk 1 written and lost)

src/osd/osd.cpp

@@ -11,6 +11,7 @@
 #include "addr_util.h"
 #include "osd_primary.h"
 #include "osd.h"
+#include "osd_rmw.h"
 #include "http_client.h"
 #include "str_util.h"
 #include "json_util.h"
@@ -113,6 +114,10 @@ osd_t::~osd_t()
         close(listen_fd);
     listen_fds.clear();
     free(zero_buffer);
+    for (auto & pp: pgs)
+        if (pp.second.scheme == POOL_SCHEME_EC)
+            use_ec(pp.second.pg_size, pp.second.pg_data_size, false);
+    pgs.clear();
 }
 
 void osd_t::init_blockstore(std::function<void()> on_init)

src/osd/osd_cluster.cpp

@@ -962,6 +962,8 @@ void osd_t::apply_pg_config()
                     }
                 }
                 auto & pg = this->pgs[{ .pool_id = pool_id, .pg_num = pg_num }];
+                if (pg.scheme == POOL_SCHEME_EC)
+                    use_ec(pg.pg_size, pg.pg_data_size, false);
                 pg.state = pg_cfg.cur_primary == this->osd_num ? PG_PEERING : PG_STARTING;
                 pg.scheme = pool_cfg.scheme;
                 pg.pg_cursize = 0;
@@ -980,9 +982,7 @@ void osd_t::apply_pg_config()
                     (pool_cfg.scheme != POOL_SCHEME_REPLICATED ||
                     pool_cfg.local_reads == POOL_LOCAL_READ_PRIMARY);
                 if (pg.scheme == POOL_SCHEME_EC)
-                {
                     use_ec(pg.pg_size, pg.pg_data_size, true);
-                }
                 this->pg_state_dirty.insert({ .pool_id = pool_id, .pg_num = pg_num });
                 pg.print_state();
                 if (pg_cfg.cur_primary == this->osd_num)