无法再建目录了，请帮助。

[weixin_38053367]

#ls |wc
wc: standard input:1: Invalid or incomplete multibyte or wide character
wc: standard input:2: Invalid or incomplete multibyte or wide character
wc: standard input:3: Invalid or incomplete multibyte or wide character
wc: standard input:4: Invalid or incomplete multibyte or wide character
wc: standard input:5: Invalid or incomplete multibyte or wide character
wc: standard input:6: Invalid or incomplete multibyte or wide character
wc: standard input:7: Invalid or incomplete multibyte or wide character
wc: standard input:8: Invalid or incomplete multibyte or wide character
wc: standard input:9: Invalid or incomplete multibyte or wide character
wc: standard input:10: Invalid or incomplete multibyte or wide character
wc: standard input:11: Invalid or incomplete multibyte or wide character
wc: standard input:12: Invalid or incomplete multibyte or wide character
wc: standard input:13: Invalid or incomplete multibyte or wide character
wc: standard input:14: Invalid or incomplete multibyte or wide character
wc: standard input:15: Invalid or incomplete multibyte or wide character
wc: standard input:16: Invalid or incomplete multibyte or wide character
wc: standard input:17: Invalid or incomplete multibyte or wide character
wc: standard input:18: Invalid or incomplete multibyte or wide character
wc: standard input:19: Invalid or incomplete multibyte or wide character
wc: standard input:20: Invalid or incomplete multibyte or wide character
wc: standard input:428: Invalid or incomplete multibyte or wide character
wc: standard input:5280: Invalid or incomplete multibyte or wide character
wc: standard input:28705: Invalid or incomplete multibyte or wide character
wc: standard input:31969: Invalid or incomplete multibyte or wide character
wc: standard input:31972: Invalid or incomplete multibyte or wide character
wc: standard input:31973: Invalid or incomplete multibyte or wide character
wc: standard input:31974: Invalid or incomplete multibyte or wide character
wc: standard input:31975: Invalid or incomplete multibyte or wide character
wc: standard input:31976: Invalid or incomplete multibyte or wide character
wc: standard input:31977: Invalid or incomplete multibyte or wide character
wc: standard input:31978: Invalid or incomplete multibyte or wide character
wc: standard input:31979: Invalid or incomplete multibyte or wide character
wc: standard input:31980: Invalid or incomplete multibyte or wide character
wc: standard input:31981: Invalid or incomplete multibyte or wide character
wc: standard input:31982: Invalid or incomplete multibyte or wide character
wc: standard input:31983: Invalid or incomplete multibyte or wide character
wc: standard input:31984: Invalid or incomplete multibyte or wide character
wc: standard input:31985: Invalid or incomplete multibyte or wide character
wc: standard input:31986: Invalid or incomplete multibyte or wide character
wc: standard input:31987: Invalid or incomplete multibyte or wide character
wc: standard input:31988: Invalid or incomplete multibyte or wide character
wc: standard input:31989: Invalid or incomplete multibyte or wide character
wc: standard input:31990: Invalid or incomplete multibyte or wide character
wc: standard input:31991: Invalid or incomplete multibyte or wide character
wc: standard input:31992: Invalid or incomplete multibyte or wide character
wc: standard input:31993: Invalid or incomplete multibyte or wide character
wc: standard input:31994: Invalid or incomplete multibyte or wide character
wc: standard input:31995: Invalid or incomplete multibyte or wide character
wc: standard input:31997: Invalid or incomplete multibyte or wide character
  31998   31986  433503

#mkdir 400000
mkdir: cannot create directory `400000': Too many links

系统：Red Hat Enterprise Linux AS release 4 (Nahant Update 2)
内核：
# /bin/uname -r
2.6.9-22.ELsmp

是不是有目录数量的限制呢？如何改成更大呢？谢谢!