trx0trx.c:

  Add diagnostic prints to determine why the 'queries inside InnoDB' might drift upwards
ha_innodb.cc:
  Add more print space to SHOW INNODB STATUS; remove possible memory leak in case there is an error

1 files changed, 16 insertions, 0 deletions

diff --git a/innobase/trx/trx0trx.c b/innobase/trx/trx0trx.c
index d2219ed019f..357fb01df63 100644
--- a/innobase/trx/trx0trx.c
+++ b/innobase/trx/trx0trx.c
@@ -233,8 +233,19 @@ trx_free(
 /*=====*/
 	trx_t*	trx)	/* in, own: trx object */
 {
+        char      err_buf[1000];
+
 	ut_ad(mutex_own(&kernel_mutex));
 
+	if (trx->declared_to_be_inside_innodb) {
+	        ut_print_timestamp(stderr);
+	        trx_print(err_buf, trx);
+
+	        fprintf(stderr,
+"  InnoDB: Error: Freeing a trx which is declared to be processing\n"
+"InnoDB: inside InnoDB.\n%s\n", err_buf);
+	}
+
 	ut_a(trx->magic_n == TRX_MAGIC_N);
 
 	trx->magic_n = 11112222;
@@ -1518,6 +1529,11 @@ trx_print(
     		buf += sprintf(buf, " purge trx");
   	}
 
+	if (trx->declared_to_be_inside_innodb) {
+	        buf += sprintf(buf, ", thread declared inside InnoDB %lu",
+			       trx->n_tickets_to_enter_innodb);
+	}
+
 	buf += sprintf(buf, "\n");
   	
 	start_of_line = buf;