用yum安装程序的时候，有时候在安装结束的时候老提示 段错误

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[root@localhost ~]# yum install gcc
Loading "installonlyn" plugin
Setting up Install Process
Setting up repositories
Reading repository metadata in from local files
Parsing package install arguments
error: rpmdbNextIterator: skipping h#    1814 blob size(2576): BAD, 8 + 16 * il(75) + dl(15712)
error: rpmdbNextIterator: skipping h#    1814 blob size(2576): BAD, 8 + 16 * il(75) + dl(15712)
error: rpmdbNextIterator: skipping h#    1814 blob size(2576): BAD, 8 + 16 * il(75) + dl(15712)
Resolving Dependencies
--> Populating transaction set with selected packages. Please wait.
---> Package gcc.i386 0:4.1.1-51.fc6 set to be updated
--> Running transaction check
--> Processing Dependency: gcc = 4.1.1-30 for package: gcc-gnat
--> Processing Dependency: gcc = 4.1.1-30 for package: gcc-c++
--> Processing Dependency: gcc = 4.1.1-30 for package: gcc-java
--> Processing Dependency: gcc = 4.1.1-30 for package: gcc-objc
--> Processing Dependency: gcc = 4.1.1-30 for package: gcc-gfortran
--> Processing Dependency: cpp = 4.1.1-51.fc6 for package: gcc
error: rpmdbNextIterator: skipping h#    1814 blob size(2576): BAD, 8 + 16 * il(75) + dl(15712)
--> Restarting Dependency Resolution with new changes.
--> Populating transaction set with selected packages. Please wait.
---> Package gcc-c++.i386 0:4.1.1-51.fc6 set to be updated
---> Package gcc-gfortran.i386 0:4.1.1-51.fc6 set to be updated
---> Package gcc-gnat.i386 0:4.1.1-51.fc6 set to be updated
---> Package gcc-objc.i386 0:4.1.1-51.fc6 set to be updated
---> Package cpp.i386 0:4.1.1-51.fc6 set to be updated
---> Package gcc-java.i386 0:4.1.1-51.fc6 set to be updated
--> Running transaction check
--> Processing Dependency: libstdc++-devel = 4.1.1-51.fc6 for package: gcc-c++
error: rpmdbNextIterator: skipping h#    1814 blob size(2576): BAD, 8 + 16 * il(75) + dl(15712)
--> Restarting Dependency Resolution with new changes.
--> Populating transaction set with selected packages. Please wait.
---> Package libstdc++-devel.i386 0:4.1.1-51.fc6 set to be updated
--> Running transaction check

Dependencies Resolved

=============================================================================
Package                 Arch       Version          Repository        Size
=============================================================================
Updating:
gcc                     i386       4.1.1-51.fc6     updates           4.9 M
Updating for dependencies:
cpp                     i386       4.1.1-51.fc6     updates           2.6 M
gcc-c++                 i386       4.1.1-51.fc6     updates           3.3 M
gcc-gfortran            i386       4.1.1-51.fc6     updates           3.0 M
gcc-gnat                i386       4.1.1-51.fc6     updates            11 M
gcc-java                i386       4.1.1-51.fc6     updates           2.8 M
gcc-objc                i386       4.1.1-51.fc6     updates           2.5 M
libstdc++-devel         i386       4.1.1-51.fc6     updates           9.4 M

Transaction Summary
=============================================================================
Install      0 Package(s)         
Update       8 Package(s)         
Remove       0 Package(s)         

Total download size: 40 M
Is this ok [y/N]: y
Downloading Packages:
Running Transaction Test
段错误