Changes

Docker 1.7 [https://github.com/boucher/docker/tree/cr-combined]}}

Docker 1.7 [https://github.com/boucher/docker/tree/cr-combined]}}

{{OverlayFS| The OverlayFS filesystem was merged into the upstream Linux kernel 3.18 and is now Docker's preferred filesystem (instead of AUFS).  However, there is a bug in OverlayFS that reports the wrong mnt_id in /proc/<pid>/fdinfo/<fd> and the wrong symlink target path for /proc/<pid>/<fd>.  Fortunately, these bugs have been fixed in the kernel v4.2-rc2.  See below for instructions on how to apply the relevant patches.}}

{{Note| The OverlayFS filesystem was merged into the upstream Linux kernel 3.18 and is now Docker's preferred filesystem (instead of AUFS).  However, there is a bug in OverlayFS that reports the wrong mnt_id in /proc/<pid>/fdinfo/<fd> and the wrong symlink target path for /proc/<pid>/<fd>.  Fortunately, these bugs have been fixed in the kernel v4.2-rc2.  See below for instructions on how to apply the relevant patches.}}

{{Async IO| If your process uses async IO and your kernel is older than 3.19, you need to apply two patches.  See below for instructions.}}

{{Note| If your process uses async IO and your kernel is older than 3.19, you need to apply two patches.  See below for instructions.}}

== Introduction ==

== Introduction ==