$ uname -a
Linux debian 4.12.0-9.1-liquorix-686 #1 ZEN SMP PREEMPT liquorix 4.12-4 (2017-08-26) i686 GNU/Linux

[25356.427885] ------------[ cut here ]------------
[25356.427897] WARNING: CPU: 1 PID: 6 at /build/linux-liquorix-4.12/kernel/workqueue.c:2041 process_one_work+0x37/0x3a0
[25356.427897] Modules linked in: dm_crypt loop ecb crypto_simd cryptd aes_i586 xts algif_skcipher af_alg dm_mod pci_stub vboxpci(O) vboxnetadp(O) vboxnetflt(O) vboxdrv(O) fuse xt_TCPMSS xt_tcpmss xt_tcpudp iptable_mangle deflate zram pppoe pppox af_packet ppp_generic slhc gpio_ich iTCO_wdt iTCO_vendor_support lpc_ich coretemp kvm_intel kvm irqbypass ppdev i915 video pcspkr input_leds serio_raw rng_core button sg evdev snd_hda_codec_realtek drm_kms_helper snd_hda_codec_generic binfmt_misc drm i2c_algo_bit fb_sys_fops syscopyarea sysfillrect sysimgblt intel_agp intel_gtt parport_pc parport snd_hda_intel snd_hda_codec snd_hda_core snd_hwdep snd_pcm snd_timer snd soundcore shpchp tpm_tis tpm_tis_core tpm ip_tables x_tables ipv6 crc_ccitt autofs4 ext4 crc16 jbd2 fscrypto mbcache hid_generic usbhid sr_mod
[25356.427949]  sd_mod cdrom ata_generic pata_acpi ata_piix libata i2c_i801 i2c_core scsi_mod ehci_pci uhci_hcd ehci_hcd sky2 rtc_cmos
[25356.427960] CPU: 1 PID: 6 Comm: mm_percpu_wq Tainted: G           O    4.12.0-9.1-liquorix-686 #1 liquorix 4.12-4
[25356.427961] Hardware name: LENOVO QiTianM710E/To be filled by O.E.M., BIOS 90KT20CUS 09/14/2010
[25356.427965] task: f24a3d40 task.stack: f24b8000
[25356.427967] EIP: process_one_work+0x37/0x3a0
[25356.427968] EFLAGS: 00210002 CPU: 1
[25356.427969] EAX: f24902a0 EBX: f2902300 ECX: 00000001 EDX: f28fec80
[25356.427970] ESI: f2903e00 EDI: ecb17338 EBP: 00000000 ESP: f24b9f30
[25356.427971]  DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
[25356.427972] CR0: 80050033 CR2: 00000064 CR3: 3494a000 CR4: 000426d0
[25356.427974] Call Trace:
[25356.427977]  ? rescuer_thread+0x23d/0x430
[25356.427979]  ? kthread+0x114/0x140
[25356.427980]  ? worker_thread+0x450/0x450
[25356.427982]  ? __kthread_create_on_node+0x120/0x120
[25356.427984]  ? rt_mutex_adjust_prio_chain+0x820/0xac0
[25356.427988]  ? ret_from_fork+0x19/0x24
[25356.427989] Code: 89 f1 30 c9 83 e6 04 0f 45 f1 8b 4e 04 8b 89 c0 00 00 00 83 e1 20 f6 43 10 04 89 0c 24 75 0e 64 8b 0d dc 01 a8 c1 3b 4b 04 74 02 <0f> ff 69 fa 47 86 c8 61 c1 ef 1a 8b 6c bb 60 85 ed 0f 84 2a 03
[25356.428015] ---[ end trace a30c6e0d5d097d5c ]---
[25356.428020] BUG: using smp_processor_id() in preemptible [00000000] code: mm_percpu_wq/6
[25356.428023] caller is vmstat_update+0x22/0x50
[25356.428024] CPU: 1 PID: 6 Comm: mm_percpu_wq Tainted: G        W  O    4.12.0-9.1-liquorix-686 #1 liquorix 4.12-4
[25356.428025] Hardware name: LENOVO QiTianM710E/To be filled by O.E.M., BIOS 90KT20CUS 09/14/2010
[25356.428027] Workqueue: mm_percpu_wq vmstat_update
[25356.428028] Call Trace:
[25356.428031]  ? dump_stack+0x55/0x72
[25356.428034]  ? debug_smp_processor_id+0xcb/0xd0
[25356.428036]  ? vmstat_update+0x22/0x50
[25356.428037]  ? process_one_work+0x183/0x3a0
[25356.428039]  ? rescuer_thread+0x23d/0x430
[25356.428040]  ? kthread+0x114/0x140
[25356.428042]  ? worker_thread+0x450/0x450
[25356.428043]  ? __kthread_create_on_node+0x120/0x120
[25356.428044]  ? rt_mutex_adjust_prio_chain+0x820/0xac0
[25356.428046]  ? ret_from_fork+0x19/0x24
[25356.428048] BUG: using smp_processor_id() in preemptible [00000000] code: mm_percpu_wq/6
[25356.428049] caller is vmstat_update+0x34/0x50
[25356.428050] CPU: 1 PID: 6 Comm: mm_percpu_wq Tainted: G        W  O    4.12.0-9.1-liquorix-686 #1 liquorix 4.12-4
[25356.428051] Hardware name: LENOVO QiTianM710E/To be filled by O.E.M., BIOS 90KT20CUS 09/14/2010
[25356.428053] Workqueue: mm_percpu_wq vmstat_update
[25356.428054] Call Trace:
[25356.428055]  ? dump_stack+0x55/0x72
[25356.428057]  ? debug_smp_processor_id+0xcb/0xd0
[25356.428058]  ? vmstat_update+0x34/0x50
[25356.428059]  ? process_one_work+0x183/0x3a0
[25356.428061]  ? rescuer_thread+0x23d/0x430
[25356.428063]  ? kthread+0x114/0x140
[25356.428064]  ? worker_thread+0x450/0x450
[25356.428065]  ? __kthread_create_on_node+0x120/0x120
[25356.428067]  ? rt_mutex_adjust_prio_chain+0x820/0xac0
[25356.428068]  ? ret_from_fork+0x19/0x24