diff --git a/BitKeeper/etc/collapsed b/BitKeeper/etc/collapsed
new file mode 100644
index 00000000000..60be7fa5dc6
--- /dev/null
+++ b/BitKeeper/etc/collapsed
@@ -0,0 +1 @@
+452a92d0-31-8wSzSfZi165fcGcXPA
diff --git a/client/mysql.cc b/client/mysql.cc
index f9ca9d4f829..12fa2b56ebf 100644
--- a/client/mysql.cc
+++ b/client/mysql.cc
@@ -372,6 +372,21 @@ int main(int argc,char *argv[])
   else
     status.add_to_history=1;
   status.exit_status=1;
+
+  {
+    /* 
+     The file descriptor-layer may be out-of-sync with the file-number layer,
+     so we make sure that "stdout" is really open.  If its file is closed then
+     explicitly close the FD layer. 
+    */
+    int stdout_fileno_copy;
+    stdout_fileno_copy= dup(fileno(stdout)); /* Okay if fileno fails. */
+    if (stdout_fileno_copy == -1)
+      fclose(stdout);
+    else
+      close(stdout_fileno_copy);             /* Clean up dup(). */
+  }
+
   load_defaults("my",load_default_groups,&argc,&argv);
   defaults_argv=argv;
   if (get_options(argc, (char **) argv))
diff --git a/mysql-test/r/mysql_client.result b/mysql-test/r/mysql_client.result
index 87d09428ff6..5375deb250d 100644
--- a/mysql-test/r/mysql_client.result
+++ b/mysql-test/r/mysql_client.result
@@ -2,3 +2,17 @@
 1
 ERROR 1064 (42000) at line 3: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '' at line 1
 ERROR at line 1: USE must be followed by a database name
+create table t17583 (a int);
+insert into t17583 (a) values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
+insert into t17583 select a from t17583;
+insert into t17583 select a from t17583;
+insert into t17583 select a from t17583;
+insert into t17583 select a from t17583;
+insert into t17583 select a from t17583;
+insert into t17583 select a from t17583;
+insert into t17583 select a from t17583;
+select count(*) from t17583;
+count(*)
+1280
+drop table t17583;
+End of 4.1 tests.
diff --git a/mysql-test/t/mysql_client.test b/mysql-test/t/mysql_client.test
index b382357dacf..2a7f4a935bb 100644
--- a/mysql-test/t/mysql_client.test
+++ b/mysql-test/t/mysql_client.test
@@ -33,3 +33,22 @@
 #
 --exec echo 'help' | $MYSQL   >  $MYSQLTEST_VARDIR/tmp/bug20328.tmp
 --exec echo 'help ' | $MYSQL  >  $MYSQLTEST_VARDIR/tmp/bug20328.tmp
+
+#
+# Bug#17583: mysql drops connection when stdout is not writable
+#
+create table t17583 (a int);
+insert into t17583 (a) values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
+insert into t17583 select a from t17583;
+insert into t17583 select a from t17583;
+insert into t17583 select a from t17583;
+insert into t17583 select a from t17583;
+insert into t17583 select a from t17583;
+insert into t17583 select a from t17583;
+insert into t17583 select a from t17583;
+# Close to the minimal data needed to exercise bug.
+select count(*) from t17583;
+--exec echo "select count(*) from t17583; select count(*) from t17583; select count(*) from t17583; select count(*) from t17583; select count(*) from t17583; select count(*) from t17583; select count(*) from t17583; select count(*) from t17583; select count(*) from t17583; select count(*) from t17583; select count(*) from t17583; select count(*) from t17583; select count(*) from t17583; select count(*) from t17583; select count(*) from t17583; select count(*) from t17583; select count(*) from t17583; select count(*) from t17583; select count(*) from t17583; select count(*) from t17583; select count(*) from t17583; select count(*) from t17583; select count(*) from t17583; select count(*) from t17583; select count(*) from t17583; select count(*) from t17583; select count(*) from t17583; select count(*) from t17583; select count(*) from t17583; select count(*) from t17583; select count(*) from t17583; select count(*) from t17583; select count(*) from t17583; select count(*) from t17583; select count(*) from t17583; select count(*) from t17583; select count(*) from t17583; select count(*) from t17583; select count(*) from t17583; select count(*) from t17583; select count(*) from t17583; select count(*) from t17583; select count(*) from t17583; select count(*) from t17583; select count(*) from t17583; select count(*) from t17583; select count(*) from t17583; select count(*) from t17583; select count(*) from t17583; select count(*) from t17583; select count(*) from t17583; select count(*) from t17583; select count(*) from t17583; select count(*) from t17583; select count(*) from t17583; select count(*) from t17583; select count(*) from t17583; select count(*) from t17583; select count(*) from t17583; select count(*) from t17583; select count(*) from t17583; select count(*) from t17583; select count(*) from t17583; select count(*) from t17583; select count(*) from t17583; select count(*) from t17583; select count(*) from t17583; select count(*) from t17583; select count(*) from t17583; select count(*) from t17583; select count(*) from t17583; select count(*) from t17583; select count(*) from t17583; select count(*) from t17583; select count(*) from t17583; " |$MYSQL test >&-
+drop table t17583;
+
+--echo End of 4.1 tests.