The issue tested by LTP testcase inotify07 has been fixed by commit: 31747eda41ef "ovl: hash directory inodes for fsnotify"
From this upstream commit:
"The reported issue dates back to initial version of overlayfs, but this patch depends on ovl_inode code that was introduced in kernel v4.13."
Our Xenial 4.4 kernel doesn't have the ovl_inode code, so the solution is to blacklist this testcase for kernels older than 4.13.
The issue tested by LTP testcase inotify07 has been fixed by commit:
31747eda41ef "ovl: hash directory inodes for fsnotify"
From this upstream commit:
"The reported issue dates back to initial version of overlayfs, but this patch depends on ovl_inode code that was introduced in kernel v4.13."
Our Xenial 4.4 kernel doesn't have the ovl_inode code, so the solution is to blacklist this testcase for kernels older than 4.13.