Few moments ago, SLES 12.3 all updates installed.

[528112.786104] BUG: unable to handle kernel paging request at ffff880273fa9b40
[528112.786401] IP: btrfs_init_reloc_root+0x2b/0xa0 [btrfs]
[528112.786584] PGD 200c067 P4D 200c067 PUD 2fed1c067 PMD 2feb7c067 PTE 8010000273fa9065
[528112.786842] Oops: 0003 [#1] SMP NOPTI
[528112.786948] CPU: 4 PID: 574 Comm: systemd-journal Not tainted 4.12.14-95.24-default #1 SLE12-SP4
[528112.787181] task: ffff8802ed710bc0 task.stack: ffffc90042bc8000
[528112.787362] RIP: e030:btrfs_init_reloc_root+0x2b/0xa0 [btrfs]
[528112.787575] RSP: e02b:ffffc90042bcbbe8 EFLAGS: 00010286
[528112.787722] RAX: ffff880273fa9800 RBX: ffff8802ea8eb800 RCX: 0000000000000000
[528112.787917] RDX: 0000000000118121 RSI: ffff8802ea8eb800 RDI: ffff88027f81e2d0
[528112.788114] RBP: ffff88027f81e2d0 R08: 0000000000000001 R09: ffff88027f81e2d0
[528112.788355] R10: 00000000000c0000 R11: ffff8802ec1b20c8 R12: ffff8802e9ba0000
[528112.788626] R13: ffff8802e9ba0078 R14: 0000000000000000 R15: ffff8802ed710bc0
[528112.788878] FS:  00007f4611f4c840(0000) GS:ffff8802f0900000(0000) knlGS:0000000000000000
[528112.789138] CS:  e033 DS: 0000 ES: 0000 CR0: 0000000080050033
[528112.789314] CR2: ffff880273fa9b40 CR3: 0000000185a42000 CR4: 0000000000040660
[528112.789604] Call Trace:
[528112.789698]  record_root_in_trans+0xa9/0xf0 [btrfs]
[528112.789869]  btrfs_record_root_in_trans+0x4a/0x70 [btrfs]
[528112.790073]  start_transaction+0xab/0x440 [btrfs]
[528112.790217]  btrfs_dirty_inode+0x49/0xe0 [btrfs]
[528112.790379]  file_update_time+0xa6/0xf0
[528112.790558]  btrfs_page_mkwrite+0x129/0x490 [btrfs]
[528112.790712]  do_page_mkwrite+0x31/0x70
[528112.790857]  do_wp_page+0x43f/0x570
[528112.790968]  __handle_mm_fault+0x793/0xef0
[528112.791085]  handle_mm_fault+0xc4/0x1d0
[528112.791197]  __do_page_fault+0x1f3/0x4c0
[528112.791310]  do_page_fault+0x2b/0x70
[528112.791445]  ? do_syscall_64+0x9a/0x160
[528112.791560]  ? page_fault+0x2f/0x50
[528112.791685]  page_fault+0x45/0x50
[528112.791782] RIP: 2ee0:0x7fffd27e03d8
[528112.791883] RSP: cd92ee0:0000000000000001 EFLAGS: 55ce0cd92ee0
[528112.791886] Code: 0f 1f 44 00 00 41 55 41 54 55 48 89 fd 53 48 8b 86 f0 01 00 00 48 89 f3 48 8b 88 a0 cb 00 00 48 8b 46 18 48 85 c0 74 13 48 8b 17 <48> 89 90 40 03 00 00 5b 5d 41 5c 31 c0 41 5d c3 48 85 c9 74 f2 
[528112.792632] Modules linked in: nfsv3 rpcsec_gss_krb5 nfsv4 dns_resolver nfs fscache af_packet iscsi_ibft iscsi_boot_sysfs xenfs xen_privcmd intel_rapl sb_edac x86_pkg_temp_thermal coretemp crc32_pclmul ghash_clmulni_intel pcbc xen_netfront aesni_intel aes_x86_64 crypto_simd glue_helper cryptd pcspkr nfsd auth_rpcgss nfs_acl lockd grace sunrpc btrfs xor raid6_pq xen_blkfront crc32c_intel sg dm_multipath dm_mod scsi_dh_rdac scsi_dh_emc scsi_dh_alua scsi_mod autofs4
[528112.793813] Supported: Yes
[528112.793895] CR2: ffff880273fa9b40
[528112.793992] ---[ end trace d4d5746ac351a11a ]---
[528112.794139] RIP: e030:btrfs_init_reloc_root+0x2b/0xa0 [btrfs]
[528112.794296] RSP: e02b:ffffc90042bcbbe8 EFLAGS: 00010286
[528112.794508] RAX: ffff880273fa9800 RBX: ffff8802ea8eb800 RCX: 0000000000000000
[528112.794722] RDX: 0000000000118121 RSI: ffff8802ea8eb800 RDI: ffff88027f81e2d0
[528112.794915] RBP: ffff88027f81e2d0 R08: 0000000000000001 R09: ffff88027f81e2d0
[528112.795108] R10: 00000000000c0000 R11: ffff8802ec1b20c8 R12: ffff8802e9ba0000
[528112.791886] Code: 0f 1f 44 00 00 41 55 41 54 55 48 89 fd 53 48 8b 86 f0 01 00 00 48 89 f3 48 8b 88 a0 cb 00 00 48 8b 46 18 48 85 c0 74 13 48 8b 17 <48> 89 90 40 03 00 00 5b 5d 41 5c 31 c0 41 5d c3 48 85 c9 74 f2 
[528112.792632] Modules linked in: nfsv3 rpcsec_gss_krb5 nfsv4 dns_resolver nfs fscache af_packet iscsi_ibft iscsi_boot_sysfs xenfs xen_privcmd intel_rapl sb_edac x86_pkg_temp_thermal coretemp crc32_pclmul ghash_clmulni_intel pcbc xen_netfront aesni_intel aes_x86_64 crypto_simd glue_helper cryptd pcspkr nfsd auth_rpcgss nfs_acl lockd grace sunrpc btrfs xor raid6_pq xen_blkfront crc32c_intel sg dm_multipath dm_mod scsi_dh_rdac scsi_dh_emc scsi_dh_alua scsi_mod autofs4
[528112.793813] Supported: Yes
[528112.793895] CR2: ffff880273fa9b40
[528112.793992] ---[ end trace d4d5746ac351a11a ]---
[528112.794139] RIP: e030:btrfs_init_reloc_root+0x2b/0xa0 [btrfs]
[528112.794296] RSP: e02b:ffffc90042bcbbe8 EFLAGS: 00010286
[528112.794508] RAX: ffff880273fa9800 RBX: ffff8802ea8eb800 RCX: 0000000000000000
[528112.794722] RDX: 0000000000118121 RSI: ffff8802ea8eb800 RDI: ffff88027f81e2d0
[528112.794915] RBP: ffff88027f81e2d0 R08: 0000000000000001 R09: ffff88027f81e2d0
[528112.795108] R10: 00000000000c0000 R11: ffff8802ec1b20c8 R12: ffff8802e9ba0000