Description of problem:
Restart kdump service.
/var/log/messages has 'ln: failed to create symbolic link `/var/tmp/initramfs.PA2nCN//usr/lib64/libnss_files.so': No such file or directory'

Version-Release number of selected component (if applicable):
kexec-tools-2.0.3-38.fc17.x86_64

How reproducible:
100%

Steps to Reproduce:
1.touch /etc/kdump.conf
2.service kdump restart
3.
  
Actual results:
syslog prints `/var/tmp/initramfs.PA2nCN//usr/lib64/libnss_files.so': No such file or directory'

Expected results:
no error/warn

Additional info:

# cat /etc/kdump.conf
ext4 UUID=95617332-8967-4cbd-b1f5-64c31c0d2f6e
default shell
core_collector makedumpfile -E -d 31

# cat /var/log/messages
[snip]
Mar 23 05:56:26 intel-chiefriver-03 kdump: kexec: unloaded kdump kernel
Mar 23 05:56:26 intel-chiefriver-03 kdumpctl[7387]: Stopping kdump:
Mar 23 05:56:26 intel-chiefriver-03 kdump: stopped
Mar 23 05:56:26 intel-chiefriver-03 kdumpctl[7393]: Detected /etc/kdump.conf or /boot/vmlinuz-3.2.1-0.9.el7.x86_64 change
Mar 23 05:56:26 intel-chiefriver-03 kdumpctl[7393]: Rebuilding /boot/initramfs-3.2.1-0.9.el7.x86_64kdump.img
Mar 23 05:56:31 intel-chiefriver-03 kdumpctl[7393]: rpmversion
Mar 23 05:56:31 intel-chiefriver-03 kdumpctl[7393]: dm
Mar 23 05:56:34 intel-chiefriver-03 kdumpctl[7393]: kernel-modules
Mar 23 05:56:45 intel-chiefriver-03 kdumpctl[7393]: lvm
Mar 23 05:56:46 intel-chiefriver-03 kdumpctl[7393]: fstab-sys
Mar 23 05:56:46 intel-chiefriver-03 kdumpctl[7393]: rootfs-block
Mar 23 05:56:47 intel-chiefriver-03 kdumpctl[7393]: udev-rules
Mar 23 05:56:48 intel-chiefriver-03 kdumpctl[7393]: ln: failed to create symbolic link `/var/tmp/initramfs.PA2nCN//usr/lib64/libnss_files.so': No such file or directory
Mar 23 05:56:48 intel-chiefriver-03 kdumpctl[7393]: ln: failed to create symbolic link `/var/tmp/initramfs.PA2nCN//usr/lib64/libnss_files.so': No such file or directory
Mar 23 05:56:49 intel-chiefriver-03 kdumpctl[7393]: base
Mar 23 05:56:51 intel-chiefriver-03 kdumpctl[7393]: fs-lib
Mar 23 05:56:52 intel-chiefriver-03 kdumpctl[7393]: kdumpbase
Mar 23 05:56:53 intel-chiefriver-03 kdumpctl[7393]: shutdown
Mar 23 05:56:53 intel-chiefriver-03 systemd-tmpfiles[12852]: Successfully loaded SELinux database in 8ms 371us, size on heap is 478K.
Mar 23 05:56:54 intel-chiefriver-03 kdumpctl[7393]: E: ldconfig exited ungracefully
Mar 23 05:57:06 intel-chiefriver-03 kdump: kexec: loaded kdump kernel
Mar 23 05:57:06 intel-chiefriver-03 kdumpctl[7393]: Starting kdump:
Mar 23 05:57:06 intel-chiefriver-03 kdump: started up