Lots of warnings in the journal coming from btrfs_rename (fs/btrfs/inode.c)

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,
1

In the journalctl I see lots of warnings like shown below but I don’t see any statement describing the cause for the warning.
What is this warning about?
How can I fix this?

I have Fedora 40 but I’ve seen these warnings in a couple of previous Fedora versions too.

sie 09 11:42:58 myhost kernel: ------------[ cut here ]------------
sie 09 11:42:58 myhost kernel: WARNING: CPU: 3 PID: 100250 at fs/btrfs/inode.c:9107 btrfs_rename+0x3f6/0x8e0
sie 09 11:42:58 myhost kernel: Modules linked in: xt_nat veth nf_conntrack_netlink xt_addrtype br_netfilter overlay uinput snd_seq_dummy snd_hrtimer vboxnetadp(OE) vboxnetflt(OE) vboxdrv(OE) nvidia_drm(POE) nvidia_modeset(POE) xt_CHECKSUM xt_MASQUERADE xt_conntrack ipt_REJECT nf_reject_ipv4 nvidia_uvm(POE) ip6table_mangle ip6table_nat ip6table_filter ip6_tables iptable_mangle iptable_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 iptable_filter ip_tables qrtr bridge stp llc nvidia(POE) sunrpc intel_rapl_msr intel_rapl_common x86_pkg_temp_thermal intel_powerclamp at24 snd_hda_codec_realtek snd_hda_codec_hdmi mei_wdt snd_hda_codec_generic snd_hda_scodec_component snd_hda_intel snd_intel_dspcfg coretemp snd_intel_sdw_acpi mei_pxp snd_hda_codec kvm_intel mei_hdcp ppdev iTCO_wdt intel_pmc_bxt iTCO_vendor_support kvm snd_hda_core snd_hwdep rapl intel_cstate intel_uncore snd_seq pcspkr i2c_i801 i2c_smbus hid_logitech_hidpp snd_seq_device joydev snd_pcm pktcdvd snd_timer r8169 snd mei_me realtek mei lpc_ich soundcore parport_pc parport
sie 09 11:42:58 myhost kernel:  cfg80211 rfkill loop dm_multipath nfnetlink hid_logitech_dj crct10dif_pclmul crc32_pclmul crc32c_intel polyval_clmulni polyval_generic ghash_clmulni_intel sha512_ssse3 sha256_ssse3 sha1_ssse3 video wmi scsi_dh_rdac scsi_dh_emc scsi_dh_alua fuse i2c_dev
sie 09 11:42:58 myhost kernel: CPU: 3 PID: 100250 Comm: ThreadPoolForeg Tainted: P        W  OE      6.9.12-200.fc40.x86_64 #1
sie 09 11:42:58 myhost kernel: Hardware name: MSI MS-7798/B75MA-P45 (MS-7798), BIOS V1.3 07/30/2012
sie 09 11:42:58 myhost kernel: RIP: 0010:btrfs_rename+0x3f6/0x8e0
sie 09 11:42:58 myhost kernel: Code: 60 48 89 04 24 48 05 f0 09 00 00 f0 48 0f ba 28 02 0f 82 25 c5 a7 00 e9 f4 c4 a7 00 83 f8 ef 75 0b 4d 85 ff 0f 85 be fd ff ff <0f> 0b 48 8b 7c 24 68 89 0c 24 e8 4b a3 da ff 48 8b bc 24 a0 00 00
sie 09 11:42:58 myhost kernel: RSP: 0018:ffffa2f9c844fb58 EFLAGS: 00010246
sie 09 11:42:58 myhost kernel: RAX: 00000000ffffffef RBX: ffff8d66ec9d0a50 RCX: 00000000ffffffef
sie 09 11:42:58 myhost kernel: RDX: 0000001782fae003 RSI: 00000000000436d0 RDI: 38ae07c5668dffff
sie 09 11:42:58 myhost kernel: RBP: ffff8d66ec9d0a50 R08: 0000000000000000 R09: 00000000000038dd
sie 09 11:42:58 myhost kernel: R10: 0000000000000001 R11: ffffa2f9c844fb07 R12: ffff8d65d6d413c0
sie 09 11:42:58 myhost kernel: R13: ffff8d65f9a85318 R14: ffff8d66c12ba000 R15: 0000000000000000
sie 09 11:42:58 myhost kernel: FS:  00007f995ec006c0(0000) GS:ffff8d67d5d80000(0000) knlGS:0000000000000000
sie 09 11:42:58 myhost kernel: CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
sie 09 11:42:58 myhost kernel: CR2: 0000559321caf000 CR3: 00000000cda52006 CR4: 00000000001706f0
sie 09 11:42:58 myhost kernel: Call Trace:
sie 09 11:42:58 myhost kernel:  <TASK>
sie 09 11:42:58 myhost kernel:  ? btrfs_rename+0x3f6/0x8e0
sie 09 11:42:58 myhost kernel:  ? __warn.cold+0x8e/0xe8
sie 09 11:42:58 myhost kernel:  ? btrfs_rename+0x3f6/0x8e0
sie 09 11:42:58 myhost kernel:  ? report_bug+0xff/0x140
sie 09 11:42:58 myhost kernel:  ? handle_bug+0x3c/0x80
sie 09 11:42:58 myhost kernel:  ? exc_invalid_op+0x17/0x70
sie 09 11:42:58 myhost kernel:  ? asm_exc_invalid_op+0x1a/0x20
sie 09 11:42:58 myhost kernel:  ? btrfs_rename+0x3f6/0x8e0
sie 09 11:42:58 myhost kernel:  ? btrfs_rename+0x1a5/0x8e0
sie 09 11:42:58 myhost kernel:  ? avc_has_extended_perms+0x550/0x550
sie 09 11:42:58 myhost kernel:  btrfs_rename2+0x2e/0x70
sie 09 11:42:58 myhost kernel:  vfs_rename+0xa2a/0xfd0
sie 09 11:42:58 myhost kernel:  ? current_check_refer_path+0x35/0x2c0
sie 09 11:42:58 myhost kernel:  ? do_renameat2+0x5e9/0x620
sie 09 11:42:58 myhost kernel:  do_renameat2+0x5e9/0x620
sie 09 11:42:58 myhost kernel:  __x64_sys_rename+0x78/0xb0
sie 09 11:42:58 myhost kernel:  do_syscall_64+0x82/0x160
sie 09 11:42:58 myhost kernel:  ? irqtime_account_irq+0x3e/0xc0
sie 09 11:42:58 myhost kernel:  ? __irq_exit_rcu+0x4a/0xb0
sie 09 11:42:58 myhost kernel:  entry_SYSCALL_64_after_hwframe+0x76/0x7e
sie 09 11:42:58 myhost kernel: RIP: 0033:0x7f9969a8205b
sie 09 11:42:58 myhost kernel: Code: c0 48 8b 5d f8 c9 c3 0f 1f 84 00 00 00 00 00 b8 ff ff ff ff eb eb 66 0f 1f 84 00 00 00 00 00 f3 0f 1e fa b8 52 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 05 c3 0f 1f 40 00 48 8b 15 89 4d 18 00 f7 d8
sie 09 11:42:58 myhost kernel: RSP: 002b:00007f995ebfd8e8 EFLAGS: 00000282 ORIG_RAX: 0000000000000052
sie 09 11:42:58 myhost kernel: RAX: ffffffffffffffda RBX: 00007f995ebfda7c RCX: 00007f9969a8205b
sie 09 11:42:58 myhost kernel: RDX: 0000000000000070 RSI: 0000394000cb79d0 RDI: 0000394001629650
sie 09 11:42:58 myhost kernel: RBP: 00007f995ebfd980 R08: 00000000002c533c R09: 000000000000003d
sie 09 11:42:58 myhost kernel: R10: 0000000000000000 R11: 0000000000000282 R12: 00007f995ebfd910
sie 09 11:42:58 myhost kernel: R13: 00007f995ebfd8f0 R14: 0000394000cb79d0 R15: 0000394001629650
sie 09 11:42:58 myhost kernel:  </TASK>
sie 09 11:42:58 myhost kernel: ---[ end trace 0000000000000000 ]---
2

They are kernel panics and suggest a serious problem.

Suggest you raise a bug ticket against the linux kernel so maintainers may help. See How to file a bug :: Fedora Docs

3

As shown in the log my kernel is tained (Tainted: P W OE) because of nvidia modules. In the past I raised issue against kernel and was told nobody is going to investigate the reason as long as the kernel is tained.

4

Reproduce the problem using the nouveau driver and the report will not be rejected for tainting. Then go back to using the nvidia driver.

5

It is not hard to switch back and forth between nouveau and Nvidia.

6

Added btrfs