问题代码：

[cuixiaohuan lamp]$mkdir test

mkdir: cannot create directory `test': Invalid argument

linux操作系统是正常的,没有其他问题;问题突然发生,如何解决？

关于环境：

# linux

[cuixiaohuan ~]$uname -a

Linux cuixiaohuan 2.6.32_1-10-0-0 #1 SMP Fri Feb 1 17:20:11 CST 2013 x86_64 x86_64 x86_64 GNU/Linux

# file permission

[cuixiaohuan lamp]$ll

total 5744

drwxrwxrwx 16 work work 4096 Jan 21 14:33 apache2

drwxrwxrwx 5 work work 4096 Jul 19 2013 memcached

drwxrwxrwx 13 work work 4096 Jan 8 10:50 mysql5

drwxrwxrwx 8 work work 4096 Dec 7 17:25 php5

# about disk and inonde

[cuixiaohuan lamp]$df -h

Filesystem Size Used Avail Use% Mounted on

/dev/sda2 8.2G 7.0G 1.2G 86% /

/dev/sda3 1.4T 939G 402G 71% /home

[cuixiaohuan lamp]$df -i

Filesystem Inodes IUsed IFree IUse% Mounted on

/dev/sda2 1098880 573014 525866 53% /

/dev/sda3 181288960 6331853 174957107 4% /home

# mount info

[cuixiaohuan lamp]$mount

/dev/sda2 on / type ext2 (rw)

none on /dev/pts type devpts (rw,gid=5,mode=620)

/dev/sda3 on /home type ext2 (rw)

日志信息如下

strace info是正常的,有人告诉我为什么以及如何解决？