Feb 21 13:18:58 fedora kernel: BTRFS info (device sdb3): enabling all of the rescue options
Feb 21 13:18:58 fedora kernel: BTRFS info (device sdb3): ignoring data csums
Feb 21 13:18:58 fedora kernel: BTRFS info (device sdb3): ignoring bad roots
Feb 21 13:18:58 fedora kernel: BTRFS info (device sdb3): disabling log replay at mount time
Feb 21 13:18:58 fedora kernel: BTRFS info (device sdb3): disk space caching is enabled
Feb 21 13:18:58 fedora kernel: BTRFS info (device sdb3): has skinny extents
Feb 21 13:18:58 fedora kernel: BUG: kernel NULL pointer dereference, address: 0000000000000030
Feb 21 13:18:58 fedora kernel: #PF: supervisor read access in kernel mode
Feb 21 13:18:58 fedora kernel: #PF: error_code(0x0000) - not-present page
Feb 21 13:18:58 fedora kernel: PGD 0 P4D 0 
Feb 21 13:18:58 fedora kernel: Oops: 0000 [#1] SMP PTI
Feb 21 13:18:58 fedora kernel: CPU: 1 PID: 1590 Comm: mount Not tainted 5.11.0-155.nealbtrfstest.fc34.x86_64 #1
Feb 21 13:18:58 fedora kernel: Hardware name: VMware, Inc. VMware Virtual Platform/440BX Desktop Reference Platform, BIOS 6.00 07/22/2020
Feb 21 13:18:58 fedora kernel: RIP: 0010:btrfs_device_init_dev_stats+0x26/0x210
Feb 21 13:18:58 fedora kernel: Code: 0f 1f 40 00 0f 1f 44 00 00 41 57 49 89 f7 41 56 41 55 45 31 ed 41 54 55 53 48 83 ec 40 48 8b 47 38 48 c7 44 24 2f 00 00 00 00 <48> 8b 70 30 c6 44 24 3f 00 48 c7 44 24 37 00 00 00 00 48 85 f6 74
Feb 21 13:18:58 fedora kernel: RSP: 0018:ffffb477c3ce3b68 EFLAGS: 00010282
Feb 21 13:18:58 fedora kernel: RAX: 0000000000000000 RBX: ffff8ad3094ea098 RCX: 0000000000000070
Feb 21 13:18:58 fedora kernel: RDX: ffff8ad31b728000 RSI: ffff8ad328c8c2a0 RDI: ffff8ad3094eac00
Feb 21 13:18:58 fedora kernel: RBP: ffff8ad328c8c2a0 R08: 0000000000000070 R09: 0000000000000000
Feb 21 13:18:58 fedora kernel: R10: ffff8ad328c8c2a0 R11: 0000000000000000 R12: ffff8ad3094ea000
Feb 21 13:18:58 fedora kernel: R13: 0000000000000000 R14: ffff8ad3094eac00 R15: ffff8ad328c8c2a0
Feb 21 13:18:58 fedora kernel: FS:  00007fda4979fc40(0000) GS:ffff8ad37be40000(0000) knlGS:0000000000000000
Feb 21 13:18:58 fedora kernel: CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
Feb 21 13:18:58 fedora kernel: CR2: 0000000000000030 CR3: 000000005faca001 CR4: 00000000003706e0
Feb 21 13:18:58 fedora kernel: Call Trace:
Feb 21 13:18:58 fedora kernel:  ? btrfs_init_dev_stats+0x1f/0xf0
Feb 21 13:18:58 fedora kernel:  btrfs_init_dev_stats+0x62/0xf0
Feb 21 13:18:58 fedora kernel:  open_ctree+0x102c/0x1610
Feb 21 13:18:58 fedora kernel:  btrfs_mount_root.cold+0x13/0xfa
Feb 21 13:18:58 fedora kernel:  legacy_get_tree+0x27/0x40
Feb 21 13:18:58 fedora kernel:  vfs_get_tree+0x25/0xb0
Feb 21 13:18:58 fedora kernel:  vfs_kern_mount.part.0+0x71/0xb0
Feb 21 13:18:58 fedora kernel:  btrfs_mount+0x131/0x3d0
Feb 21 13:18:58 fedora kernel:  ? legacy_get_tree+0x27/0x40
Feb 21 13:18:58 fedora kernel:  ? btrfs_show_options+0x640/0x640
Feb 21 13:18:58 fedora kernel:  legacy_get_tree+0x27/0x40
Feb 21 13:18:58 fedora kernel:  vfs_get_tree+0x25/0xb0
Feb 21 13:18:58 fedora kernel:  path_mount+0x441/0xa80
Feb 21 13:18:58 fedora kernel:  __x64_sys_mount+0xf4/0x130
Feb 21 13:18:58 fedora kernel:  do_syscall_64+0x33/0x40
Feb 21 13:18:58 fedora kernel:  entry_SYSCALL_64_after_hwframe+0x44/0xa9
Feb 21 13:18:58 fedora kernel: RIP: 0033:0x7fda499cf52e
Feb 21 13:18:58 fedora kernel: Code: 48 8b 0d 45 19 0c 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 12 19 0c 00 f7 d8 64 89 01 48
Feb 21 13:18:58 fedora kernel: RSP: 002b:00007ffc12dff688 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
Feb 21 13:18:58 fedora kernel: RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fda499cf52e
Feb 21 13:18:58 fedora kernel: RDX: 000055e2fc6f3690 RSI: 000055e2fc6f3730 RDI: 000055e2fc6f36b0
Feb 21 13:18:58 fedora kernel: RBP: 000055e2fc6f3460 R08: 000055e2fc6f36f0 R09: 00007fda49a91a60
Feb 21 13:18:58 fedora kernel: R10: 0000000000000001 R11: 0000000000000246 R12: 0000000000000000
Feb 21 13:18:58 fedora kernel: R13: 000055e2fc6f36b0 R14: 000055e2fc6f3690 R15: 000055e2fc6f3460
Feb 21 13:18:58 fedora kernel: Modules linked in: bnep snd_seq_dummy snd_hrtimer bluetooth ecdh_generic ecc nft_fib_inet nft_fib_ipv4 nft_fib_ipv6 nft_fib nft_reject_inet nf_reject_ipv4 nf_reject_ipv6 nft_reject nft_ct nft_chain_nat ip6table_nat ip6table_mangle ip6table_raw ip6table_security iptable_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 iptable_mangle iptable_raw iptable_security ip_set nf_tables rfkill nfnetlink ip6table_filter ip6_tables iptable_filter vsock_loopback vmw_vsock_virtio_transport_common snd_seq_midi snd_seq_midi_event vmw_vsock_vmci_transport vsock sunrpc intel_rapl_msr intel_rapl_common rapl vmw_balloon snd_ens1371 snd_ac97_codec ac97_bus snd_rawmidi snd_seq snd_seq_device snd_pcm joydev pcspkr snd_timer snd soundcore gameport vmw_vmci i2c_piix4 zram ip_tables crct10dif_pclmul crc32_pclmul vmwgfx crc32c_intel drm_kms_helper ghash_clmulni_intel mptspi e1000 cec ttm scsi_transport_spi serio_raw drm mptscsih mptbase ata_generic pata_acpi fuse
Feb 21 13:18:58 fedora kernel: CR2: 0000000000000030
Feb 21 13:18:58 fedora kernel: ---[ end trace 87ac94f887eabb67 ]---
Feb 21 13:18:58 fedora kernel: RIP: 0010:btrfs_device_init_dev_stats+0x26/0x210
Feb 21 13:18:58 fedora kernel: Code: 0f 1f 40 00 0f 1f 44 00 00 41 57 49 89 f7 41 56 41 55 45 31 ed 41 54 55 53 48 83 ec 40 48 8b 47 38 48 c7 44 24 2f 00 00 00 00 <48> 8b 70 30 c6 44 24 3f 00 48 c7 44 24 37 00 00 00 00 48 85 f6 74
Feb 21 13:18:58 fedora kernel: RSP: 0018:ffffb477c3ce3b68 EFLAGS: 00010282
Feb 21 13:18:58 fedora kernel: RAX: 0000000000000000 RBX: ffff8ad3094ea098 RCX: 0000000000000070
Feb 21 13:18:58 fedora kernel: RDX: ffff8ad31b728000 RSI: ffff8ad328c8c2a0 RDI: ffff8ad3094eac00
Feb 21 13:18:58 fedora kernel: RBP: ffff8ad328c8c2a0 R08: 0000000000000070 R09: 0000000000000000
Feb 21 13:18:58 fedora kernel: R10: ffff8ad328c8c2a0 R11: 0000000000000000 R12: ffff8ad3094ea000
Feb 21 13:18:58 fedora kernel: R13: 0000000000000000 R14: ffff8ad3094eac00 R15: ffff8ad328c8c2a0
Feb 21 13:18:58 fedora kernel: FS:  00007fda4979fc40(0000) GS:ffff8ad37be40000(0000) knlGS:0000000000000000
Feb 21 13:18:58 fedora kernel: CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
Feb 21 13:18:58 fedora kernel: CR2: 0000000000000030 CR3: 000000005faca001 CR4: 00000000003706e0
Feb 21 13:18:59 fedora abrt-dump-journal-oops[700]: abrt-dump-journal-oops: Found oopses: 1
Feb 21 13:18:59 fedora abrt-dump-journal-oops[700]: abrt-dump-journal-oops: Creating problem directories
Feb 21 13:19:00 fedora abrt-notification[1631]: System encountered a non-fatal error in btrfs_init_dev_stats()
Feb 21 13:19:00 fedora abrt-dump-journal-oops[700]: Reported 1 kernel oopses to Abrt