Comment 36 for bug 1792580

Thanks for the link, for some reason I was looking in the wrong place.

The issue seems to have been introduced in 4.15.0-13 (4.15.0-12 works). There is in fact a CIFS related patch[1][2][3] that was backported and is most probably the one introducing this regression.

[1] https://www.spinics.net/lists/linux-cifs/msg13861.html
[2] https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1747572
[3] https://bugzilla.samba.org/show_bug.cgi?id=12917