如何解决centos yum 段错误问题

[root@lee ~]# yum -y update
Loaded plugins: fastestmirror, refresh-packagekit
Determining fastest mirrors
 * base: mirror.esocc.com
 * extras: mirror.esocc.com
 * soluslabs: mirror.us1.soluslabs.net
 * updates: mirror.esocc.com
base                                  | 3.7 kB     00:00     
base/primary_db              | 4.4 MB     00:14     
extras                                       | 3.4 kB     00:00     
extras/primary_db             |  18 kB     00:00     
soluslabs                          |  951 B     00:00     
soluslabs/primary        |  11 kB     00:00     
段错误 (core dumped)

# vim /usr/bin/yum

#!/usr/bin/python2.6
import sys
try:
    import yum
except ImportError:
    print >> sys.stderr, """\
There was a problem importing one of the Python modules
required to run yum. The error leading to this problem was:
   %s
Please install a package which provides this module, or
verify that the module is installed correctly.
It's possible that the above module doesn't match the
current version of Python, which is:
%s
If you cannot solve this problem yourself, please go to 
the yum faq at:
  http://yum.baseurl.org/wiki/Faq
""" % (sys.exc_value, sys.version)
    sys.exit(1)
sys.path.insert(0, '/usr/share/yum-cli')
try:
    import yummain
    yummain.user_main(sys.argv[1:], exit_code=True)
except KeyboardInterrupt, e:
    print >> sys.stderr, "\n\nExiting on user cancel."
    sys.exit(1)

#!/usr/bin/python2.6

[root@lee ~]# /usr/bin/python2.6 -V
Python 2.6.6

[root@lee ~]# ls  /etc/yum.repos.d/
CentOS-Base.repo  CentOS-Debuginfo.repo  CentOS-Media.repo  CentOS-Vault.repo  soluslabs.repo

soluslabs                                    |  951 B     00:00     
soluslabs/primary                    |  11 kB     00:00     
段错误 (core dumped)

# rm -f /etc/yum.repos.d/soluslabs.repo

# yum clean all

[root@lee ~]# yum -y update
Loaded plugins: fastestmirror, refresh-packagekit
Determining fastest mirrors
 * base: mirrors.tuna.tsinghua.edu.cn
 * extras: mirrors.tuna.tsinghua.edu.cn
 * updates: mirrors.tuna.tsinghua.edu.cn
base   | 3.7 kB     00:00     
base/primary_db               | 4.4 MB     00:20     
extras                                        | 3.4 kB     00:00     
extras/primary_db          00:00     
updates                                       | 3.4 kB     00:00     
updates/primary_db                                 | 3.9 MB     00:13     
Setting up Update Process
Resolving Dependencies
--> Running transaction check
---> Package bash.x86_64 0:4.1.2-14.el6 will be updated
---> Package bash.x86_64 0:4.1.2-15.el6_4 will be an update
---> Package bind-libs.x86_64 32:9.8.2-0.17.rc1.el6_4.4 will be updated

[root@lee ~]# yum update
Loaded plugins: fastestmirror, refresh-packagekit
Loading mirror speeds from cached hostfile
 * base: mirrors.tuna.tsinghua.edu.cn
 * extras: mirrors.tuna.tsinghua.edu.cn
 * soluslabs: mirror.eu1.soluslabs.net
 * updates: mirrors.tuna.tsinghua.edu.cn
段错误 (core dumped)

[root@lee ~]# rpm -q zlib zlib-devel
zlib-1.2.3-29.el6.x86_64
zlib-devel-1.2.3-29.el6.x86_64
[root@lee ~]# cp /usr/lib64/lib
Display all 1910 possibilities? (y or n)
[root@lee ~]# cp /usr/lib64/libz.so /usr/local/lib64/
[root@lee ~]# cd /usr/local/lib64/
[root@lee lib64]# ln -sf libz.so libz.so.1
[root@lee lib64]# yum clean all

[root@lee ~] cp /usr/lib/libz.so /usr/local/lib/