[  281.008303] general protection fault: 0000 [#1] PREEMPT SMP PTI
[  281.008307] Modules linked in: cmac arc4 md4 nls_utf8 cifs ccm dns_resolver fscache uas usb_storage fuse cfg80211 rfkill 8021q mrp amdgpu chash joydev mousedev input_leds led_class ipmi_ssif hid_generic iTCO_wdt iTCO_vendor_support intel_rapl sb_edac x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm irqbypass crct10dif_pclmul crc32_pclmul ghash_clmulni_intel pcbc radeon aesni_intel usbhid aes_x86_64 hid crypto_simd glue_helper cryptd intel_cstate intel_uncore intel_rapl_perf pcspkr ttm snd_hda_codec_realtek snd_hda_codec_generic i2c_i801 drm_kms_helper lpc_ich snd_hda_codec_hdmi drm ixgbe igb snd_hda_intel snd_hda_codec i2c_algo_bit snd_hda_core mdio snd_hwdep ptp pps_core snd_pcm agpgart syscopyarea sysfillrect snd_timer sysimgblt snd fb_sys_fops soundcore ioatdma mei_me mei shpchp dca
[  281.008345]  wmi rtc_cmos ipmi_si acpi_power_meter evdev mac_hid vboxnetflt(O) vboxnetadp(O) vboxpci(O) vboxdrv(O) ipmi_devintf ipmi_msghandler ip_tables x_tables ext4 crc16 mbcache jbd2 fscrypto raid1 md_mod sr_mod cdrom sd_mod ohci_pci xhci_pci ehci_pci ahci libahci crc32c_intel ohci_hcd xhci_hcd ehci_hcd libata megaraid_sas usbcore scsi_mod usb_common
[  281.008365] CPU: 6 PID: 1970 Comm: cifsd Tainted: G           O     4.15.6-1-ARCH #1
[  281.008366] Hardware name: Supermicro Super Server/X10SRL-F, BIOS 2.0b 05/02/2017
[  281.008371] RIP: 0010:prefetch_freepointer.isra.17+0x10/0x20
[  281.008372] RSP: 0018:ffffa3f70f3c7de0 EFLAGS: 00010202
[  281.008373] RAX: 0000000000000000 RBX: 48e87a807beb9e57 RCX: 0000000000029006
[  281.008374] RDX: 48e87a807beb9e57 RSI: ffff94d478299340 RDI: ffff94d478299220
[  281.008375] RBP: 0000000001011200 R08: ffffffff9bc11e40 R09: 0000000000000000
[  281.008376] R10: ffffa3f70f3c7d28 R11: 0000000000000000 R12: ffff94d3d1d4ef40
[  281.008377] R13: ffff94d478299200 R14: ffff94d478299200 R15: ffffffff9b1a2325
[  281.008379] FS:  0000000000000000(0000) GS:ffff94d4ffd80000(0000) knlGS:0000000000000000
[  281.008380] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  281.008381] CR2: 00002dc0873da000 CR3: 0000001e8700a006 CR4: 00000000001606e0
[  281.008382] Call Trace:
[  281.008386]  kmem_cache_alloc+0x9c/0x1b0
[  281.008390]  ? wait_woken+0x80/0x80
[  281.008392]  mempool_alloc+0x65/0x190
[  281.008395]  ? _raw_spin_unlock_irqrestore+0x20/0x40
[  281.008398]  ? try_to_wake_up+0x224/0x490
[  281.008421]  cifs_small_buf_get+0x16/0x20 [cifs]
[  281.008429]  cifs_demultiplex_thread+0x557/0xab0 [cifs]
[  281.008437]  ? cifs_handle_standard+0x190/0x190 [cifs]
[  281.008439]  kthread+0x113/0x130
[  281.008440]  ? kthread_create_on_node+0x70/0x70
[  281.008443]  ? do_syscall_64+0x74/0x190
[  281.008445]  ? SyS_exit_group+0x10/0x10
[  281.008447]  ret_from_fork+0x35/0x40
[  281.008449] Code: 10 48 8b 4c 24 08 e9 ad fd ff ff 0f 0b e8 f9 b4 e6 ff 45 31 ff e9 d8 fd ff ff 90 0f 1f 44 00 00 48 85 d2 74 0f 48 63 07 48 01 c2 <48> 33 12 48 33 16 0f 18 0a f3 c3 0f 1f 44 00 00 0f 1f 44 00 00 
[  281.008470] RIP: prefetch_freepointer.isra.17+0x10/0x20 RSP: ffffa3f70f3c7de0
[  281.008484] ---[ end trace 2c2bb0b66285d64e ]---