but it did not occur on:
4.4.109-0404109-generic #201801022112 SMP Tue Jan 2 21:13:34 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux
4.10.0-041000-generic #201702191831 SMP Sun Feb 19 23:33:19 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux
4.11.12-041112-generic #201707210350 SMP Fri Jul 21 07:53:15 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux
4.12.0-041200-generic #201707022031 SMP Mon Jul 3 00:32:52 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux
Besides 4.15.0- 041500rc6- generic and 4.13 the problem occurs on:
4.12.14- 041214- generic #201709200843 SMP Wed Sep 20 12:46:23 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux
but it did not occur on: 0404109- generic #201801022112 SMP Tue Jan 2 21:13:34 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux 041000- generic #201702191831 SMP Sun Feb 19 23:33:19 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux 041112- generic #201707210350 SMP Fri Jul 21 07:53:15 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux 041200- generic #201707022031 SMP Mon Jul 3 00:32:52 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux
4.4.109-
4.10.0-
4.11.12-
4.12.0-
I will jump through the 4.12 builds tomorrow.