I've just run yum update on one of the centos VM I got a long list of warning the bottom of which says:
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Error: Package: kmod-vmware-tools-vsock-1.0.0.0-2.6.32.71.el6.x86_64.3.x86_64 (@vmware-tools)
Requires: ksym(VMCIQPair_ConsumeFreeSpace) = 0x3806255a
Removing: kmod-vmware-tools-vmci-9.0.3.0-2.6.32.71.el6.x86_64.3.x86_64 (@vmware-tools)
ksym(VMCIQPair_ConsumeFreeSpace) = 0x3806255a
Updated By: kmod-vmware-tools-vmci-9.3.19.0-2.6.32.71.el6.x86_64.3.x86_64 (vmware-tools)
ksym(VMCIQPair_ConsumeFreeSpace) = 0x9d44266f
Removing: kmod-vmware-tools-vmci-9.3.18.0-2.6.32.71.el6.x86_64.3.x86_64 (installed)
ksym(VMCIQPair_ConsumeFreeSpace) = 0x9d44266f
Updated By: kmod-vmware-tools-vmci-9.3.19.0-2.6.32.71.el6.x86_64.3.x86_64 (vmware-tools)
ksym(VMCIQPair_ConsumeFreeSpace) = 0x9d44266f
Error: Package: kmod-vmware-tools-vsock-1.0.0.0-2.6.32.71.el6.x86_64.3.x86_64 (@vmware-tools)
Requires: ksym(VMCIQPair_ProduceFreeSpace) = 0x3dbc0c2b
Removing: kmod-vmware-tools-vmci-9.0.3.0-2.6.32.71.el6.x86_64.3.x86_64 (@vmware-tools)
ksym(VMCIQPair_ProduceFreeSpace) = 0x3dbc0c2b
Updated By: kmod-vmware-tools-vmci-9.3.19.0-2.6.32.71.el6.x86_64.3.x86_64 (vmware-tools)
ksym(VMCIQPair_ProduceFreeSpace) = 0x7bedfae9
Removing: kmod-vmware-tools-vmci-9.3.18.0-2.6.32.71.el6.x86_64.3.x86_64 (installed)
ksym(VMCIQPair_ProduceFreeSpace) = 0x7bedfae9
Updated By: kmod-vmware-tools-vmci-9.3.19.0-2.6.32.71.el6.x86_64.3.x86_64 (vmware-tools)
ksym(VMCIQPair_ProduceFreeSpace) = 0x7bedfae9
You could try using --skip-broken to work around the problem
** Found 6 pre-existing rpmdb problem(s), 'yum check' output follows:
kmod-vmware-tools-vmci-9.3.18.0-2.6.32.71.el6.x86_64.3.x86_64 is a duplicate with kmod-vmware-tools-vmci-9.0.3.0-2.6.32.71.el6.x86_64.3.x86_64
kmod-vmware-tools-vmxnet-2.0.14.0-2.6.32.71.el6.x86_64.3.x86_64 is a duplicate with kmod-vmware-tools-vmxnet-2.0.9.0-2.6.32.71.el6.x86_64.3.x86_64
kmod-vmware-tools-vsock-9.3.3.0-2.6.32.71.el6.x86_64.3.x86_64 is a duplicate with kmod-vmware-tools-vsock-1.0.0.0-2.6.32.71.el6.x86_64.3.x86_64
vmware-tools-vmci-common-9.0.5-1.el6.x86_64 is a duplicate with vmware-tools-vmci-common-8.6.0-3.x86_64
vmware-tools-vmxnet-common-9.0.5-1.el6.x86_64 is a duplicate with vmware-tools-vmxnet-common-8.6.0-3.x86_64
vmware-tools-vsock-common-9.0.5-1.el6.x86_64 is a duplicate with vmware-tools-vsock-common-8.6.0-3.x86_64
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more /etc/yum.repos.d/vmware-tools.repo
[vmware-tools]
name=VMware Tools
baseurl=http://packages.vmware.com/tools/esx/latest/rhel6/$basearch
enabled=1
gpgcheck=1
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Not sure what happened there...