Description of problem:
when i use yum update  or yum install any package

Version-Release number of selected component:
yum-3.4.3-152.fc20

Additional info:
reporter:       libreport-2.2.3
cmdline:        /usr/bin/python /bin/yum update
executable:     /bin/yum
kernel:         3.15.7-200.fc20.x86_64
runlevel:       N 5
type:           Python
uid:            0

Truncated backtrace:
misc.py:960:stat_f:OSError: [Errno 5] Input/output error: '/var/lib/yum/yumdb/a/6531b7b9c6737535fadc95f5ab3230f057761c3f-alsa-lib-1.0.27.2-2.fc20-i686/checksum_type'

Traceback (most recent call last):
  File "/bin/yum", line 29, in <module>
    yummain.user_main(sys.argv[1:], exit_code=True)
  File "/usr/share/yum-cli/yummain.py", line 371, in user_main
    errcode = main(args)
  File "/usr/share/yum-cli/yummain.py", line 229, in main
    (result, resultmsgs) = base.buildTransaction()
  File "/usr/lib/python2.7/site-packages/yum/__init__.py", line 1201, in buildTransaction
    (rescode, restring) = self.resolveDeps()
  File "/usr/lib/python2.7/site-packages/yum/depsolve.py", line 915, in resolveDeps
    for po, dep in self._checkFileRequires():
  File "/usr/lib/python2.7/site-packages/yum/depsolve.py", line 1206, in _checkFileRequires
    self.installedFileProviders = self.rpmdb.fileRequiresData()
  File "/usr/lib/python2.7/site-packages/yum/rpmsack.py", line 991, in fileRequiresData
    rpmdbv = self.simpleVersion(main_only=True)[0]
  File "/usr/lib/python2.7/site-packages/yum/rpmsack.py", line 1225, in simpleVersion
    if 'checksum_type' in ydbi and 'checksum_data' in ydbi:
  File "/usr/lib/python2.7/site-packages/yum/rpmsack.py", line 1935, in __contains__
    x = self.get(attr)
  File "/usr/lib/python2.7/site-packages/yum/rpmsack.py", line 1965, in get
    res = self._read(attr)
  File "/usr/lib/python2.7/site-packages/yum/rpmsack.py", line 1880, in _read
    info = misc.stat_f(fn, ignore_EACCES=True)
  File "/usr/lib/python2.7/site-packages/yum/misc.py", line 960, in stat_f
    return os.stat(filename)
OSError: [Errno 5] Input/output error: '/var/lib/yum/yumdb/a/6531b7b9c6737535fadc95f5ab3230f057761c3f-alsa-lib-1.0.27.2-2.fc20-i686/checksum_type'

Local variables in innermost frame:
ignore_EACCES: True
e: OSError(5, 'Input/output error')
filename: '/var/lib/yum/yumdb/a/6531b7b9c6737535fadc95f5ab3230f057761c3f-alsa-lib-1.0.27.2-2.fc20-i686/checksum_type'