find command trigger coredump

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Hi guys

when i use find to search someting trigger coredump 

find command use gunlib source code so i report this 

reproduction method:

1??xfs filesystem 

2??create 10 directory  in /opt

    mkdir {1..10}

3??use mkdir.sh to create large number of subdiretcories under the directory  

    

    mkdir.sh

    

    #!/bin/bash

    while true

   do

       for i in {1..10}

       do

          for j  in {1..8000}

               do

                      mkdir /opt/$i/$j

               done

       done

       for i in {1..10}

       do 

           rm -rf  /opt/$i/*

       done

   done

 4?? bash mkdir.sh  & 

 5??find /opt -name  mess  

  

The same thing happened  when  use du command because du use gnulib source code 

i use a patch  solve the problem:

diff --git a/gl/lib/fts.c b/gl/lib/fts.c

index ed3f815..878c04d 100644

--- a/gl/lib/fts.c

+++ b/gl/lib/fts.c

@@ -824,7 +824,6 @@ leaf_optimization (FTSENT const *p, int dir_fd)

       /* List here the file system types that may lack usable dirent.d_type

          info, yet for which the optimization does apply.  */

     case S_MAGIC_REISERFS:

-    case S_MAGIC_XFS: /* XFS lacked it until 2013-08-22 commit.  */

       return NOSTAT_LEAF_OPTIMIZATION;

     case 0: