fixed memory leak in replication

fixed bugs in new IO_CACHE code so that the old calls work
fixed shutdown bug
clean-up of mysql-test-run


include/my_sys.h:
  fixes for IO_CACHE
mysql-test/mysql-test-run.sh:
  fixed missing \ bug
  added --skip-gdb-magic to skip Sergei's automatic mysql_parse break
  do not delete the breakpoint in command - it crashes gdb sometimes
mysys/mf_iocache2.c:
  rc_pos->write_pos in my_b_seek for WRITE_CACHE
sql/mysqld.cc:
  fixed shutdown bug when singals DO break read introduced by the fix for 
  when they don't.
sql/repl_failsafe.cc:
  fixed memory leak

1 files changed, 4 insertions, 4 deletions

diff --git a/mysys/mf_iocache2.c b/mysys/mf_iocache2.c
index 76b8055bb45..4e8f3e19ad9 100644
--- a/mysys/mf_iocache2.c
+++ b/mysys/mf_iocache2.c
@@ -38,10 +38,10 @@ void my_b_seek(IO_CACHE *info,my_off_t pos)
   }
   else if (info->type == WRITE_CACHE)
   {
-    byte* try_rc_pos;
-    try_rc_pos = info->rc_pos + (pos - info->pos_in_file);
-    if (try_rc_pos >= info->buffer && try_rc_pos <= info->rc_end)
-      info->rc_pos = try_rc_pos;
+    byte* try_write_pos;
+    try_write_pos = info->write_pos + (pos - info->pos_in_file);
+    if (try_write_pos >= info->buffer && try_write_pos <= info->write_end)
+      info->write_pos = try_write_pos;
     else
       flush_io_cache(info);
   }