This is an issue that has plagued me for a few months now. Approximately every 8-10 days, UnRaid will go fully unresponsive where the GUI doesn't load, I can't access SMB shares, and internet runs over backup DNS rather than the hosted PiHole. I finally got around to setting up Syslogging and was able to track down the specific excerpt that correlated to when the server lost connection.
I am unsure what I am seeing here. Can anybody translate/advise of a fix?
Dec 6 02:23:07 Ragnarok kernel: BTRFS critical (device loop2): panic in extent_io_tree_panic:703: locking error: extent tree was modified by another thread while locked (errno=-17 Object already exists)
Dec 6 02:23:07 Ragnarok kernel: ------------[ cut here ]------------
Dec 6 02:23:07 Ragnarok kernel: kernel BUG at fs/btrfs/extent_io.c:703!
Dec 6 02:23:07 Ragnarok kernel: invalid opcode: 0000 [#1] PREEMPT SMP PTI
Dec 6 02:23:07 Ragnarok kernel: CPU: 1 PID: 373 Comm: kswapd0 Tainted: P W O 5.19.17-Unraid #2
Dec 6 02:23:07 Ragnarok kernel: Hardware name: Supermicro X9DRi-LN4+/X9DR3-LN4+/X9DRi-LN4+/X9DR3-LN4+, BIOS 3.4 11/20/2019
Dec 6 02:23:07 Ragnarok kernel: RIP: 0010:extent_io_tree_panic.isra.0+0x1f/0x21
Dec 6 02:23:07 Ragnarok kernel: Code: 8b 3d 56 12 0c 01 e9 79 07 9a ff 0f 1f 44 00 00 89 f1 49 c7 c0 fb 55 0f 82 ba bf 02 00 00 48 c7 c6 50 1a e4 81 e8 15 e1 ff ff <0f> 0b 0f 1f 44 00 00 48 8b 3d d4 13 0c 01 e9 47 07 9a ff 0f 1f 44
Dec 6 02:23:07 Ragnarok kernel: RSP: 0018:ffffc9000bc37a60 EFLAGS: 00010246
Dec 6 02:23:07 Ragnarok kernel: RAX: 0000000000000000 RBX: ffff8880124c29b0 RCX: 0000000000000000
Dec 6 02:23:07 Ragnarok kernel: RDX: 0000000000000000 RSI: ffffffff820d7be1 RDI: 00000000ffffffff
Dec 6 02:23:07 Ragnarok kernel: RBP: ffff8882094692c8 R08: 0000000000000000 R09: 0000000000000040
Dec 6 02:23:07 Ragnarok kernel: R10: ffff8880124c29b0 R11: 0000000000000000 R12: 0000000011865fff
Dec 6 02:23:07 Ragnarok kernel: R13: ffff8880124c29b0 R14: 0000000000000000 R15: ffff8884d34dae60
Dec 6 02:23:07 Ragnarok kernel: FS: 0000000000000000(0000) GS:ffff888667840000(0000) knlGS:0000000000000000
Dec 6 02:23:07 Ragnarok kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
Dec 6 02:23:07 Ragnarok kernel: CR2: 00001526fbf0efd0 CR3: 000000000220a004 CR4: 00000000001706e0
Dec 6 02:23:07 Ragnarok kernel: Call Trace:
Dec 6 02:23:07 Ragnarok kernel: <TASK>
Dec 6 02:23:07 Ragnarok kernel: __clear_extent_bit+0x242/0x320
Dec 6 02:23:07 Ragnarok kernel: try_release_extent_mapping+0x1fa/0x216
Dec 6 02:23:07 Ragnarok kernel: ? rmap_walk_anon+0x16e/0x16e
Dec 6 02:23:07 Ragnarok kernel: __btrfs_release_folio+0xf/0x31
Dec 6 02:23:07 Ragnarok kernel: shrink_page_list+0x659/0x965
Dec 6 02:23:07 Ragnarok kernel: shrink_lruvec+0x5e1/0x96a
Dec 6 02:23:07 Ragnarok kernel: shrink_node+0x310/0x542
Dec 6 02:23:07 Ragnarok kernel: balance_pgdat+0x294/0x426
Dec 6 02:23:07 Ragnarok kernel: ? preempt_latency_start+0x2b/0x46
Dec 6 02:23:07 Ragnarok kernel: kswapd+0x2fa/0x33d
Dec 6 02:23:07 Ragnarok kernel: ? _raw_spin_rq_lock_irqsave+0x20/0x20
Dec 6 02:23:07 Ragnarok kernel: ? balance_pgdat+0x426/0x426
Dec 6 02:23:07 Ragnarok kernel: kthread+0xe7/0xef
Dec 6 02:23:07 Ragnarok kernel: ? kthread_complete_and_exit+0x1b/0x1b
Dec 6 02:23:07 Ragnarok kernel: ret_from_fork+0x22/0x30
Dec 6 02:23:07 Ragnarok kernel: </TASK>
Dec 6 02:23:07 Ragnarok kernel: Modules linked in: bluetooth ecdh_generic ecc tcp_diag udp_diag inet_diag wireguard curve25519_x86_64 libcurve25519_generic libchacha20poly1305 chacha_x86_64 poly1305_x86_64 ip6_udp_tunnel udp_tunnel libchacha nvidia_uvm(PO) xt_CHECKSUM ipt_REJECT nf_reject_ipv4 ip6table_mangle ip6table_nat iptable_mangle vhost_net vhost vhost_iotlb tap tun macvlan veth xt_nat xt_tcpudp xt_conntrack xt_MASQUERADE nf_conntrack_netlink nfnetlink xfrm_user xfrm_algo xt_addrtype iptable_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 br_netfilter xfs md_mod nct7904 watchdog ip6table_filter ip6_tables iptable_filter ip_tables x_tables bonding tls bridge stp llc igb nvidia_drm(PO) nvidia_modeset(PO) x86_pkg_temp_thermal intel_powerclamp coretemp nvidia(PO) mgag200 drm_shmem_helper kvm_intel drm_kms_helper kvm drm crct10dif_pclmul crc32_pclmul crc32c_intel backlight ghash_clmulni_intel syscopyarea i2c_i801 sysfillrect aesni_intel crypto_simd cryptd rapl intel_cstate intel_uncore sysimgblt
Dec 6 02:23:07 Ragnarok kernel: i2c_smbus ipmi_ssif fb_sys_fops i2c_algo_bit i2c_core isci libsas input_leds led_class ahci joydev libahci scsi_transport_sas wmi acpi_ipmi ipmi_si acpi_pad button unix [last unloaded: igb]
Dec 6 02:23:07 Ragnarok kernel: ---[ end trace 0000000000000000 ]---
Dec 6 02:23:07 Ragnarok kernel: RIP: 0010:extent_io_tree_panic.isra.0+0x1f/0x21
Dec 6 02:23:07 Ragnarok kernel: Code: 8b 3d 56 12 0c 01 e9 79 07 9a ff 0f 1f 44 00 00 89 f1 49 c7 c0 fb 55 0f 82 ba bf 02 00 00 48 c7 c6 50 1a e4 81 e8 15 e1 ff ff <0f> 0b 0f 1f 44 00 00 48 8b 3d d4 13 0c 01 e9 47 07 9a ff 0f 1f 44
Dec 6 02:23:07 Ragnarok kernel: RSP: 0018:ffffc9000bc37a60 EFLAGS: 00010246
Dec 6 02:23:07 Ragnarok kernel: RAX: 0000000000000000 RBX: ffff8880124c29b0 RCX: 0000000000000000
Dec 6 02:23:07 Ragnarok kernel: RDX: 0000000000000000 RSI: ffffffff820d7be1 RDI: 00000000ffffffff
Dec 6 02:23:07 Ragnarok kernel: RBP: ffff8882094692c8 R08: 0000000000000000 R09: 0000000000000040
Dec 6 02:23:07 Ragnarok kernel: R10: ffff8880124c29b0 R11: 0000000000000000 R12: 0000000011865fff
Dec 6 02:23:07 Ragnarok kernel: R13: ffff8880124c29b0 R14: 0000000000000000 R15: ffff8884d34dae60
Dec 6 02:23:07 Ragnarok kernel: FS: 0000000000000000(0000) GS:ffff888667840000(0000) knlGS:0000000000000000
Dec 6 02:23:07 Ragnarok kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
Dec 6 02:23:07 Ragnarok kernel: CR2: 00001526fbf0efd0 CR3: 000000000220a004 CR4: 00000000001706e0
Dec 6 02:23:07 Ragnarok kernel: note: kswapd0[373] exited with preempt_count 1
Dec 6 02:23:07 Ragnarok kernel: ------------[ cut here ]------------
Dec 6 02:23:07 Ragnarok kernel: WARNING: CPU: 1 PID: 373 at kernel/exit.c:741 do_exit+0x39/0x8e5
Dec 6 02:23:07 Ragnarok kernel: Modules linked in: bluetooth ecdh_generic ecc tcp_diag udp_diag inet_diag wireguard curve25519_x86_64 libcurve25519_generic libchacha20poly1305 chacha_x86_64 poly1305_x86_64 ip6_udp_tunnel udp_tunnel libchacha nvidia_uvm(PO) xt_CHECKSUM ipt_REJECT nf_reject_ipv4 ip6table_mangle ip6table_nat iptable_mangle vhost_net vhost vhost_iotlb tap tun macvlan veth xt_nat xt_tcpudp xt_conntrack xt_MASQUERADE nf_conntrack_netlink nfnetlink xfrm_user xfrm_algo xt_addrtype iptable_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 br_netfilter xfs md_mod nct7904 watchdog ip6table_filter ip6_tables iptable_filter ip_tables x_tables bonding tls bridge stp llc igb nvidia_drm(PO) nvidia_modeset(PO) x86_pkg_temp_thermal intel_powerclamp coretemp nvidia(PO) mgag200 drm_shmem_helper kvm_intel drm_kms_helper kvm drm crct10dif_pclmul crc32_pclmul crc32c_intel backlight ghash_clmulni_intel syscopyarea i2c_i801 sysfillrect aesni_intel crypto_simd cryptd rapl intel_cstate intel_uncore sysimgblt
Dec 6 02:23:07 Ragnarok kernel: i2c_smbus ipmi_ssif fb_sys_fops i2c_algo_bit i2c_core isci libsas input_leds led_class ahci joydev libahci scsi_transport_sas wmi acpi_ipmi ipmi_si acpi_pad button unix [last unloaded: igb]
Dec 6 02:23:07 Ragnarok kernel: CPU: 1 PID: 373 Comm: kswapd0 Tainted: P D W O 5.19.17-Unraid #2
Dec 6 02:23:07 Ragnarok kernel: Hardware name: Supermicro X9DRi-LN4+/X9DR3-LN4+/X9DRi-LN4+/X9DR3-LN4+, BIOS 3.4 11/20/2019
Dec 6 02:23:07 Ragnarok kernel: RIP: 0010:do_exit+0x39/0x8e5
Dec 6 02:23:07 Ragnarok kernel: Code: 89 fd 53 48 83 ec 28 65 48 8b 04 25 28 00 00 00 48 89 44 24 20 31 c0 65 48 8b 1c 25 c0 bb 01 00 48 83 bb a0 07 00 00 00 74 02 <0f> 0b 48 8b bb c8 06 00 00 e8 b7 c0 7c 00 48 8b 83 c0 06 00 00 83
Dec 6 02:23:07 Ragnarok kernel: RSP: 0018:ffffc9000bc37ee0 EFLAGS: 00010286
Dec 6 02:23:07 Ragnarok kernel: RAX: 0000000000000000 RBX: ffff888103efaf40 RCX: 0000000000000000
Dec 6 02:23:07 Ragnarok kernel: RDX: 0000000000000001 RSI: ffffffff820d7be1 RDI: 000000000000000b
Dec 6 02:23:07 Ragnarok kernel: RBP: 000000000000000b R08: 0000000000000000 R09: ffffc9000976c020
Dec 6 02:23:07 Ragnarok kernel: R10: 0000000000aaaaaa R11: 0000000000000001 R12: ffffc9000bc379b8
Dec 6 02:23:07 Ragnarok kernel: R13: ffff888103efaf40 R14: 0000000000000002 R15: ffffffff820b236d
Dec 6 02:23:07 Ragnarok kernel: FS: 0000000000000000(0000) GS:ffff888667840000(0000) knlGS:0000000000000000
Dec 6 02:23:07 Ragnarok kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
Dec 6 02:23:07 Ragnarok kernel: CR2: 00001526fbf0efd0 CR3: 000000000220a004 CR4: 00000000001706e0
Dec 6 02:23:07 Ragnarok kernel: Call Trace:
Dec 6 02:23:07 Ragnarok kernel: <TASK>
Dec 6 02:23:07 Ragnarok kernel: make_task_dead+0xba/0xba
Dec 6 02:23:07 Ragnarok kernel: rewind_stack_and_make_dead+0x17/0x17
Dec 6 02:23:07 Ragnarok kernel: RIP: 0000:0x0
Dec 6 02:23:07 Ragnarok kernel: Code: Unable to access opcode bytes at RIP 0xffffffffffffffd6.
Dec 6 02:23:07 Ragnarok kernel: RSP: 0000:0000000000000000 EFLAGS: 00000000 ORIG_RAX: 0000000000000000
Dec 6 02:23:07 Ragnarok kernel: RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
Dec 6 02:23:07 Ragnarok kernel: RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
Dec 6 02:23:07 Ragnarok kernel: RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
Dec 6 02:23:07 Ragnarok kernel: R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
Dec 6 02:23:07 Ragnarok kernel: R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
Dec 6 02:23:07 Ragnarok kernel: </TASK>
Dec 6 02:23:07 Ragnarok kernel: ---[ end trace 0000000000000000 ]---