Comment 1 for bug 1243367

I have the same problem with tar version 1.27.1 on ubuntu server 14.04.1. Error "tar: .: file changed as we read it" and no files are being changed.
I made this research:
If I repeat the tar operation the errors appear on the same files.
I deleted a folder with some error files and then the error appeared in other files. If I repeat the operation then the errors keep on the same new files.
After undeleting the recently deleted folder then the errors come back to the initial group of files.
Each day, as the users work on their files (this is a backup procedure) the error files chage, but if I repeat the tar procedure the same night (without source file changes) the error remains in the same files.
It seems to be a random error affected by the files and folders being "tarred", but I couldn't find a failure pattern.