I can reproduce this now with a simple smb1 cp - but only with the small wsize ie mount option: wsize=16850. As mentioned earlier the problem is that we see a 16K write, then the next write is at the wrong offset (leaving a hole) (it worked for SMB1 with default wsize)
As stated twice in the original bug report on Launchpad, I didn't set a wsize, so the wsize=16580 must be a default value coming from somewhere. This is not the first time we have a little communication issue in this thread. Would you guys please read the bug report once again carefully, and even better, subscribe to it? https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2049634 Regards, rdiez
