And another: [ 3088.350638] ------------[ cut here ]------------ [ 3088.350639] kernel BUG at ../fs/btrfs/relocation.c:1449! [ 3088.350643] invalid opcode: 0000 [#1] SMP PTI [ 3088.350647] CPU: 2 PID: 5222 Comm: btrfs Tainted: G O 4.12.14-lp150.12.58-default #1 openSUSE Leap 15.0 [ 3088.350648] Hardware name: Dell Inc. OptiPlex 9020/00V62H, BIOS A24 10/24/2018 [ 3088.350650] task: ffff880398564000 task.stack: ffffc9000b2f8000 [ 3088.350671] RIP: 0010:create_reloc_root+0x1dc/0x1f0 [btrfs] [ 3088.350673] RSP: 0018:ffffc9000b2fb858 EFLAGS: 00010282 [ 3088.350675] RAX: 00000000ffffffef RBX: ffff880409763000 RCX: 0000000000000001 [ 3088.350677] RDX: 0000000000000027 RSI: ffff8803a90dc380 RDI: 0000000000000286 [ 3088.350678] RBP: ffff8803a07209d8 R08: ffff8803a13afa80 R09: 0000000000000000 [ 3088.350679] R10: 0000000000000002 R11: ffff8803a90dc380 R12: fffffffffffffff7 [ 3088.350681] R13: ffff880370b5c000 R14: ffff8803689f0800 R15: 00000000000c4000 [ 3088.350683] FS: 00007f1d8bfb98c0(0000) GS:ffff88041ea80000(0000) knlGS:0000000000000000 [ 3088.350684] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 3088.350685] CR2: 00007f33879f7000 CR3: 00000003ab59e005 CR4: 00000000001606e0 [ 3088.350687] Call Trace: [ 3088.350700] btrfs_init_reloc_root+0x5b/0xa0 [btrfs] [ 3088.350710] record_root_in_trans+0xb7/0xf0 [btrfs] [ 3088.350720] btrfs_record_root_in_trans+0x4e/0x60 [btrfs] [ 3088.350729] start_transaction+0xa6/0x410 [btrfs] [ 3088.350738] __btrfs_prealloc_file_range+0xbb/0x460 [btrfs] [ 3088.350748] btrfs_prealloc_file_range+0x10/0x20 [btrfs] [ 3088.350759] prealloc_file_extent_cluster+0x113/0x200 [btrfs] [ 3088.350769] relocate_file_extent_cluster+0x8d/0x470 [btrfs] [ 3088.350778] ? __btrfs_end_transaction+0x1c1/0x2e0 [btrfs] [ 3088.350787] relocate_data_extent+0x78/0xc0 [btrfs] [ 3088.350796] relocate_block_group+0x495/0x6f0 [btrfs] [ 3088.350805] btrfs_relocate_block_group+0x188/0x230 [btrfs] [ 3088.350815] btrfs_relocate_chunk+0x4a/0xf0 [btrfs] [ 3088.350825] __btrfs_balance+0x8d3/0xbe0 [btrfs] [ 3088.350835] btrfs_balance+0x2de/0x5c0 [btrfs] [ 3088.350844] btrfs_ioctl_balance+0x310/0x370 [btrfs] [ 3088.350848] ? __switch_to_asm+0x40/0x70 [ 3088.350857] btrfs_ioctl+0xba5/0x1e60 [btrfs] [ 3088.350860] ? __switch_to_asm+0x40/0x70 [ 3088.350861] ? __switch_to_asm+0x34/0x70 [ 3088.350863] ? __switch_to_asm+0x40/0x70 [ 3088.350865] ? __switch_to_asm+0x34/0x70 [ 3088.350867] ? __switch_to_asm+0x40/0x70 [ 3088.350875] ? __switch_to_asm+0x34/0x70 [ 3088.350882] ? __switch_to_asm+0x40/0x70 [ 3088.350890] ? __switch_to_asm+0x34/0x70 [ 3088.350897] ? __switch_to_asm+0x40/0x70 [ 3088.350904] ? __switch_to_asm+0x34/0x70 [ 3088.350912] ? __switch_to_asm+0x40/0x70 [ 3088.350919] ? __switch_to_asm+0x34/0x70 [ 3088.350926] ? __switch_to_asm+0x40/0x70 [ 3088.350934] ? __switch_to_asm+0x34/0x70 [ 3088.350942] ? do_vfs_ioctl+0x90/0x5f0 [ 3088.350956] ? btrfs_ioctl_get_supported_features+0x30/0x30 [btrfs] [ 3088.350963] do_vfs_ioctl+0x90/0x5f0 [ 3088.350970] ? __schedule+0x247/0x860 [ 3088.350978] SyS_ioctl+0x74/0x80 [ 3088.350986] do_syscall_64+0x7b/0x150 [ 3088.350994] entry_SYSCALL_64_after_hwframe+0x3d/0xa2 [ 3088.351001] RIP: 0033:0x7f1d8b0594a7 [ 3088.351008] RSP: 002b:00007ffcbc330b48 EFLAGS: 00000206 ORIG_RAX: 0000000000000010 [ 3088.351015] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f1d8b0594a7 [ 3088.351022] RDX: 00007ffcbc330be0 RSI: 00000000c4009420 RDI: 0000000000000003 [ 3088.351029] RBP: 0000000000000003 R08: 00007f1d8bfb98c0 R09: 00007f1d8bfb98c0 [ 3088.351035] R10: 000000000000055b R11: 0000000000000206 R12: 00007ffcbc330be0 [ 3088.351042] R13: 00005630119bb88e R14: 00007f1d8b31f808 R15: 00007ffcbc3335e8 [ 3088.351049] Code: 48 c7 83 dc 00 00 00 00 00 00 00 48 c7 83 e4 00 00 00 00 00 00 00 c6 83 ec 00 00 00 00 c6 83 ed 00 00 00 00 e9 1b ff ff ff 0f 0b <0f> 0b 0f 0b 0f 0b 0f 0b 66 66 2e 0f 1f 84 00 00 00 00 00 90 0f [ 3088.351072] Modules linked in: usblp ccm af_packet ebtable_filter ebtables nf_log_ipv6 devlink xt_comment nf_log_ipv4 nf_log_common xt_LOG xt_limit nfnetlink_cthelper nfnetlink vboxpci(O) vboxnetadp(O) vboxnetflt(O) ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT xt_pkttype xt_tcpudp iptable_filter vboxdrv(O) ip6table_mangle nf_conntrack_netbios_ns nf_conntrack_broadcast nf_conntrack_ipv4 nf_defrag_ipv4 ip_tables xt_conntrack bnep nf_conntrack libcrc32c ip6table_filter ip6_tables x_tables msr nls_iso8859_1 nls_cp437 vfat fat snd_hda_codec_hdmi arc4 intel_rapl snd_hda_codec_realtek snd_hda_codec_generic x86_pkg_temp_thermal intel_powerclamp coretemp iwlmvm kvm_intel btusb mac80211 btrtl kvm snd_hda_intel btbcm irqbypass btintel snd_hda_codec iwlwifi crc32_pclmul ghash_clmulni_intel snd_hda_core [ 3088.351122] bluetooth dell_wmi snd_hwdep dell_smbios pcbc ecdh_generic cfg80211 mei_wdt aesni_intel sparse_keymap dcdbas aes_x86_64 crypto_simd glue_helper cryptd rfkill i2c_i801 snd_pcm pcspkr e1000e mei_me lpc_ich ptp mei shpchp pps_core snd_timer snd thermal wmi soundcore button btrfs xor hid_generic usbhid raid6_pq sr_mod cdrom i915 i2c_algo_bit drm_kms_helper xhci_pci syscopyarea ehci_pci sysfillrect sysimgblt xhci_hcd ahci fb_sys_fops ehci_hcd crc32c_intel libahci drm usbcore drm_panel_orientation_quirks video sg dm_multipath dm_mod scsi_dh_rdac scsi_dh_emc scsi_dh_alua efivarfs [ 3088.351166] ---[ end trace 52c5aab9c3cd8f5e ]--- [ 3088.351181] RIP: 0010:create_reloc_root+0x1dc/0x1f0 [btrfs] [ 3088.351187] RSP: 0018:ffffc9000b2fb858 EFLAGS: 00010282 [ 3088.351194] RAX: 00000000ffffffef RBX: ffff880409763000 RCX: 0000000000000001 [ 3088.351201] RDX: 0000000000000027 RSI: ffff8803a90dc380 RDI: 0000000000000286 [ 3088.351208] RBP: ffff8803a07209d8 R08: ffff8803a13afa80 R09: 0000000000000000 [ 3088.351215] R10: 0000000000000002 R11: ffff8803a90dc380 R12: fffffffffffffff7 [ 3088.351221] R13: ffff880370b5c000 R14: ffff8803689f0800 R15: 00000000000c4000 [ 3088.351229] FS: 00007f1d8bfb98c0(0000) GS:ffff88041ea80000(0000) knlGS:0000000000000000 [ 3088.351236] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 3088.351242] CR2: 00007f33879f7000 CR3: 00000003ab59e005 CR4: 00000000001606e0