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Feb 15 13:09:51 precision-7720 kernel: kernel BUG at mm/slub.c:296!
Feb 15 13:09:51 precision-7720 kernel: invalid opcode: 0000 [#1] PREEMPT SMP PTI
Feb 15 13:09:51 precision-7720 kernel: Modules linked in: rfcomm fuse ccm xt_nat veth xt_CHECKSUM iptable_mangle snd_usb_audio snd_usbmidi_lib snd_rawmidi snd_seq_device ipt_REJECT nf_reject_ipv4 xt_tcpudp tun ipt_MASQUERADE nf_nat_masquerade_ipv4 nf_conntrack_netlink nfnetlink xfrm_user xfrm_algo iptable_na
Feb 15 13:09:51 precision-7720 kernel:  dell_wmi dell_smbios_wmi hid_alps wmi_bmof intel_wmi_thunderbolt dell_wmi_descriptor iwlmvm ppdev dell_laptop mac80211 intel_rapl dell_smbios_smm dell_smbios dcdbas x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel nls_iso8859_1 nls_cp437 vfat dell_smm_hwmon fat
Feb 15 13:09:51 precision-7720 kernel:  tpm_tis_core tpm dell_smo8800 int3402_thermal int340x_thermal_zone evdev int3400_thermal acpi_thermal_rel intel_hid mac_hid sparse_keymap ac sch_fq_codel crypto_user ip_tables x_tables ext4 crc16 mbcache jbd2 fscrypto algif_skcipher af_alg hid_logitech_hidpp hid_logite
Feb 15 13:09:51 precision-7720 kernel: CPU: 5 PID: 4777 Comm: Xorg Not tainted 4.15.3-1-amdfix #1
Feb 15 13:09:51 precision-7720 kernel: Hardware name: Dell Inc. Precision 7720/0F2JMF, BIOS 1.8.4 12/05/2017
Feb 15 13:09:51 precision-7720 kernel: RIP: 0010:__slab_free+0x1be/0x450
Feb 15 13:09:51 precision-7720 kernel: RSP: 0018:ffff9e2745e43a50 EFLAGS: 00010246
Feb 15 13:09:51 precision-7720 kernel: RAX: ffff949eefd5a400 RBX: ffff949eefd5a400 RCX: ffff949eefd5a400
Feb 15 13:09:51 precision-7720 kernel: RDX: 0000000100200017 RSI: ffff949eefd5a400 RDI: ffff949fad002f00
Feb 15 13:09:51 precision-7720 kernel: RBP: ffff9e2745e43b30 R08: 0000000000000001 R09: ffffffffc0f57077
Feb 15 13:09:51 precision-7720 kernel: R10: fffff39b0ebf5600 R11: 0000000000000000 R12: fffff39b0ebf5600
Feb 15 13:09:51 precision-7720 kernel: R13: ffff949fad002f00 R14: ffff949eefd5a400 R15: ffff949ef4fae000
Feb 15 13:09:51 precision-7720 kernel: FS:  00007f72423ee940(0000) GS:ffff949fbdd40000(0000) knlGS:0000000000000000
Feb 15 13:09:51 precision-7720 kernel: CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
Feb 15 13:09:51 precision-7720 kernel: CR2: 000055e081a3bed0 CR3: 00000004066d8001 CR4: 00000000003606e0
Feb 15 13:09:51 precision-7720 kernel: DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
Feb 15 13:09:51 precision-7720 kernel: DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Feb 15 13:09:51 precision-7720 kernel: Call Trace:
Feb 15 13:09:51 precision-7720 kernel:  ? kmalloc_order+0x14/0x40
Feb 15 13:09:51 precision-7720 kernel:  ? dc_stream_release+0x27/0x50 [amdgpu]
Feb 15 13:09:51 precision-7720 kernel:  dc_stream_release+0x27/0x50 [amdgpu]
Feb 15 13:09:51 precision-7720 kernel:  amdgpu_dm_connector_mode_valid+0xc9/0x240 [amdgpu]
Feb 15 13:09:51 precision-7720 kernel:  drm_helper_probe_single_connector_modes+0x402/0x6e0 [drm_kms_helper]
Feb 15 13:09:51 precision-7720 kernel:  drm_mode_getconnector+0x156/0x320 [drm]
Feb 15 13:09:51 precision-7720 kernel:  ? drm_mode_connector_property_set_ioctl+0x60/0x60 [drm]
Feb 15 13:09:51 precision-7720 kernel:  drm_ioctl_kernel+0x5b/0xb0 [drm]
Feb 15 13:09:51 precision-7720 kernel:  drm_ioctl+0x2d5/0x370 [drm]
Feb 15 13:09:51 precision-7720 kernel:  ? drm_mode_connector_property_set_ioctl+0x60/0x60 [drm]
Feb 15 13:09:51 precision-7720 kernel:  ? preempt_count_add+0x68/0xa0
Feb 15 13:09:51 precision-7720 kernel:  amdgpu_drm_ioctl+0x49/0x80 [amdgpu]
Feb 15 13:09:51 precision-7720 kernel:  do_vfs_ioctl+0xa4/0x630
Feb 15 13:09:51 precision-7720 kernel:  ? __sys_recvmsg+0x4e/0x90
Feb 15 13:09:51 precision-7720 kernel:  ? __sys_recvmsg+0x7d/0x90
Feb 15 13:09:51 precision-7720 kernel:  SyS_ioctl+0x74/0x80
Feb 15 13:09:51 precision-7720 kernel:  do_syscall_64+0x75/0x190
Feb 15 13:09:51 precision-7720 kernel:  entry_SYSCALL_64_after_hwframe+0x21/0x86
Feb 15 13:09:51 precision-7720 kernel: RIP: 0033:0x7f723fca2d87
Feb 15 13:09:51 precision-7720 kernel: RSP: 002b:00007fff421693f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
Feb 15 13:09:51 precision-7720 kernel: RAX: ffffffffffffffda RBX: 000055dbf0481a60 RCX: 00007f723fca2d87
Feb 15 13:09:51 precision-7720 kernel: RDX: 00007fff42169430 RSI: 00000000c05064a7 RDI: 000000000000000b
Feb 15 13:09:51 precision-7720 kernel: RBP: 00007fff42169430 R08: 000055dbf1051f30 R09: 0000000000000000
Feb 15 13:09:51 precision-7720 kernel: R10: 0000000000000000 R11: 0000000000000246 R12: 00000000c05064a7
Feb 15 13:09:51 precision-7720 kernel: R13: 000000000000000b R14: 000000000000000b R15: 00007fff42169430
Feb 15 13:09:51 precision-7720 kernel: Code: 01 00 00 00 e8 b4 f7 e8 ff 65 8b 05 cd 2c e0 5c 85 c0 0f 84 22 01 00 00 48 8b bd 28 ff ff ff 57 9d 0f 1f 44 00 00 e9 09 ff ff ff <0f> 0b 49 3b 54 24 18 75 c5 41 0f b6 54 24 1b 49 89 5c 24 10 89 
Feb 15 13:09:51 precision-7720 kernel: RIP: __slab_free+0x1be/0x450 RSP: ffff9e2745e43a50
Feb 15 13:09:51 precision-7720 kernel: ---[ end trace ae8791e34e14cc8c ]---