I've noticed this issue with blank '/boot/retpoline-*' files in 16.04 LTS Release (i386/x86_32) after Linux kernel update to the v4.4.0-115 version. (Generally, I've started to seeing these files when "Spectre_V12" patches were available for i386 architecture. I wanted to ask a question or report a bug about it etc.) So, these files are empty and it looks this way on 16.04 LTS Release:
Hello.
I've noticed this issue with blank '/boot/retpoline-*' files in 16.04 LTS Release (i386/x86_32) after Linux kernel update to the v4.4.0-115 version. (Generally, I've started to seeing these files when "Spectre_V12" patches were available for i386 architecture. I wanted to ask a question or report a bug about it etc.) So, these files are empty and it looks this way on 16.04 LTS Release:
[~]$ ls -al /boot/retpoline -4.4.0- 11* -4.4.0- 115-generic -4.4.0- 116-generic
-rw-r--r-- 1 root root 0 lut 11 19:00 /boot/retpoline
-rw-r--r-- 1 root root 0 lut 13 00:14 /boot/retpoline
[~]$ uname -m
i686
Thanks, best regards.