This appeared in my log earlier today, from what is a very error-free server.

Aug  8 10:15:11 unRAID kernel: WARNING: CPU: 4 PID: 2190177 at fs/notify/fdinfo.c:55 show_mark_fhandle+0x79/0xe8
Aug  8 10:15:11 unRAID kernel: Modules linked in: xt_nat xt_tcpudp veth xt_conntrack xt_MASQUERADE nf_conntrack_netlink nfnetlink xfrm_user xfrm_algo ip6table_nat iptable_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 xt_addrtype br_netfilter bridge stp llc md_mod zfs(PO) spl(O) nct6775 nct6775_core hwmon_vid ip6table_filter ip6_tables iptable_filter ip_tables x_tables efivarfs macvtap macvlan tap intel_rapl_common x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel i915 kvm iosf_mbi drm_buddy ttm crct10dif_pclmul i2c_algo_bit crc32_pclmul crc32c_intel ghash_clmulni_intel drm_display_helper sha512_ssse3 sha256_ssse3 sha1_ssse3 aesni_intel drm_kms_helper crypto_simd cryptd mei_pxp mei_hdcp rapl intel_cstate intel_wmi_thunderbolt mxm_wmi i2c_i801 drm e1000e intel_uncore mpt3sas i2c_smbus mei_me ahci intel_gtt mei raid_class agpgart libahci i2c_core scsi_transport_sas thermal fan video wmi backlight acpi_pad acpi_tad button
Aug  8 10:15:11 unRAID kernel: CPU: 4 PID: 2190177 Comm: lsof Tainted: P           O       6.8.12-Unraid #3
Aug  8 10:15:11 unRAID kernel: Hardware name: Micro-Star International Co., Ltd. MS-7B49/Z370 PC PRO (MS-7B49), BIOS 1.B3 11/15/2021
Aug  8 10:15:11 unRAID kernel: RIP: 0010:show_mark_fhandle+0x79/0xe8
Aug  8 10:15:11 unRAID kernel: Code: ff 00 00 00 89 c1 74 04 85 c0 79 22 80 3d 0a 40 2c 01 00 75 5e 89 ce 48 c7 c7 4b 4a 27 82 c6 05 f8 3f 2c 01 01 e8 23 28 d8 ff <0f> 0b eb 45 89 44 24 0c 8b 44 24 04 48 89 ef 31 db 48 c7 c6 89 4a
Aug  8 10:15:11 unRAID kernel: RSP: 0018:ffffc9000899fc30 EFLAGS: 00010282
Aug  8 10:15:11 unRAID kernel: RAX: 0000000000000000 RBX: ffff8881347dc020 RCX: 0000000000000027
Aug  8 10:15:11 unRAID kernel: RDX: 0000000082440510 RSI: ffffffff82258ed4 RDI: 00000000ffffffff
Aug  8 10:15:11 unRAID kernel: RBP: ffff888106ed5258 R08: 0000000000000000 R09: ffffffff82440510
Aug  8 10:15:11 unRAID kernel: R10: 00007fffffffffff R11: 0000000000000000 R12: ffff888106ed5258
Aug  8 10:15:11 unRAID kernel: R13: ffff888106ed5258 R14: ffffffff812f1e37 R15: ffff888105e0c878
Aug  8 10:15:11 unRAID kernel: FS:  00001554f9b5af00(0000) GS:ffff88845ed00000(0000) knlGS:0000000000000000
Aug  8 10:15:11 unRAID kernel: CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
Aug  8 10:15:11 unRAID kernel: CR2: 00000000004b75d8 CR3: 00000001191dc001 CR4: 00000000003706f0
Aug  8 10:15:11 unRAID kernel: DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
Aug  8 10:15:11 unRAID kernel: DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Aug  8 10:15:11 unRAID kernel: Call Trace:
Aug  8 10:15:11 unRAID kernel: <TASK>
Aug  8 10:15:11 unRAID kernel: ? __warn+0x99/0x11a
Aug  8 10:15:11 unRAID kernel: ? report_bug+0xdb/0x155
Aug  8 10:15:11 unRAID kernel: ? show_mark_fhandle+0x79/0xe8
Aug  8 10:15:11 unRAID kernel: ? handle_bug+0x3c/0x63
Aug  8 10:15:11 unRAID kernel: ? exc_invalid_op+0x13/0x60
Aug  8 10:15:11 unRAID kernel: ? asm_exc_invalid_op+0x16/0x20
Aug  8 10:15:11 unRAID kernel: ? __pfx_inotify_fdinfo+0x10/0x10
Aug  8 10:15:11 unRAID kernel: ? show_mark_fhandle+0x79/0xe8
Aug  8 10:15:11 unRAID kernel: ? __pfx_inotify_fdinfo+0x10/0x10
Aug  8 10:15:11 unRAID kernel: ? seq_vprintf+0x33/0x49
Aug  8 10:15:11 unRAID kernel: ? seq_printf+0x53/0x6e
Aug  8 10:15:11 unRAID kernel: ? preempt_latency_start+0x2b/0x46
Aug  8 10:15:11 unRAID kernel: inotify_fdinfo+0x83/0xaa
Aug  8 10:15:11 unRAID kernel: show_fdinfo.isra.0+0x63/0xab
Aug  8 10:15:11 unRAID kernel: seq_show+0x151/0x172
Aug  8 10:15:11 unRAID kernel: seq_read_iter+0x16e/0x353
Aug  8 10:15:11 unRAID kernel: ? do_filp_open+0x8e/0xb8
Aug  8 10:15:11 unRAID kernel: seq_read+0xe2/0x109
Aug  8 10:15:11 unRAID kernel: vfs_read+0xa3/0x197
Aug  8 10:15:11 unRAID kernel: ? __do_sys_newfstat+0x35/0x5c
Aug  8 10:15:11 unRAID kernel: ksys_read+0x76/0xc2
Aug  8 10:15:11 unRAID kernel: do_syscall_64+0x6c/0xdc
Aug  8 10:15:11 unRAID kernel: entry_SYSCALL_64_after_hwframe+0x78/0x80
Aug  8 10:15:11 unRAID kernel: RIP: 0033:0x1554f9de95cd
Aug  8 10:15:11 unRAID kernel: Code: 41 48 0e 00 f7 d8 64 89 02 b8 ff ff ff ff eb bb 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 80 3d 59 cc 0e 00 00 74 17 31 c0 0f 05 <48> 3d 00 f0 ff ff 77 5b c3 66 2e 0f 1f 84 00 00 00 00 00 48 83 ec
Aug  8 10:15:11 unRAID kernel: RSP: 002b:00007ffcea2d27b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
Aug  8 10:15:11 unRAID kernel: RAX: ffffffffffffffda RBX: 000000000043f600 RCX: 00001554f9de95cd
Aug  8 10:15:11 unRAID kernel: RDX: 0000000000000400 RSI: 0000000000446ae0 RDI: 0000000000000007
Aug  8 10:15:11 unRAID kernel: RBP: 00001554f9ecd230 R08: 0000000000000001 R09: 0000000000000000
Aug  8 10:15:11 unRAID kernel: R10: 0000000000000000 R11: 0000000000000246 R12: 00001554f9ecd0e0
Aug  8 10:15:11 unRAID kernel: R13: 0000000000001000 R14: 0000000000000000 R15: 000000000043f600
Aug  8 10:15:11 unRAID kernel: </TASK>
Aug  8 10:15:11 unRAID kernel: ---[ end trace 0000000000000000 ]---

 

 

unraid-diagnostics-20240808-1034.zip

This call trace has been happening to almost everyone running 7.0.0-beta, it happens just once after every boot and it appears to be harmless:

 

 

Thanks Jorge.

 

I shall ignore it, though somewhat strange that it has appeared after the server has been running for nearly 18 days.