Hi Christoph, I'm currently seeing the following message running kernel version 4.11.0. It looks like it was introduced with the patch 4037d452202e34214e8a939fa5621b2b3bbb45b7. Can you please take a look at this problem? [Tue Jun 6 15:27:03 2017] BUG: using __this_cpu_read() in preemptible [00000000] code: mm_percpu_wq/7 [Tue Jun 6 15:27:03 2017] caller is refresh_cpu_vm_stats+0x198/0x3d8 [Tue Jun 6 15:27:03 2017] CPU: 0 PID: 7 Comm: mm_percpu_wq Tainted: G W 4.11.0-20170529.0.ae409ab.224a322.fc25.s390xdefault #1 [Tue Jun 6 15:27:03 2017] Workqueue: mm_percpu_wq vmstat_update [Tue Jun 6 15:27:03 2017] Call Trace: [Tue Jun 6 15:27:03 2017] ([<00000000001138ea>] show_trace+0x8a/0xe0) [Tue Jun 6 15:27:03 2017] [<00000000001139c0>] show_stack+0x80/0xd8 [Tue Jun 6 15:27:03 2017] [<000000000074488e>] dump_stack+0x96/0xd8 [Tue Jun 6 15:27:03 2017] [<000000000077afaa>] check_preemption_disabled+0xea/0x108 [Tue Jun 6 15:27:03 2017] [<00000000002ec198>] refresh_cpu_vm_stats+0x198/0x3d8 [Tue Jun 6 15:27:03 2017] [<00000000002ed306>] vmstat_update+0x2e/0x98 [Tue Jun 6 15:27:03 2017] [<0000000000167450>] process_one_work+0x3d8/0x780 [Tue Jun 6 15:27:03 2017] [<00000000001688dc>] rescuer_thread+0x224/0x3d0 [Tue Jun 6 15:27:03 2017] [<0000000000170096>] kthread+0x166/0x178 [Tue Jun 6 15:27:03 2017] [<0000000000a4d69a>] kernel_thread_starter+0x6/0xc [Tue Jun 6 15:27:03 2017] [<0000000000a4d694>] kernel_thread_starter+0x0/0xc [Tue Jun 6 15:27:03 2017] INFO: lockdep is turned off. Kind regards, André -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>
