August 28, 2025Aug 28 Hello,I am getting this error before the server becomes unresponsive and needs a hard reset. Can anybody help me with what it means? Is the ram bad? Thanks for the help interpretting!Aug 27 19:42:28 Tower kernel: mce: [Hardware Error]: Machine check events logged Aug 27 19:42:29 Tower kernel: BUG: kernel NULL pointer dereference, address: 000000000000031f Aug 27 19:42:29 Tower kernel: #PF: supervisor read access in kernel mode Aug 27 19:42:29 Tower kernel: #PF: error_code(0x0000) - not-present page Aug 27 19:42:29 Tower kernel: PGD 0 P4D 0 Aug 27 19:42:29 Tower kernel: Oops: Oops: 0000 [#1] PREEMPT SMP NOPTI Aug 27 19:42:29 Tower kernel: CPU: 10 UID: 99 PID: 1069595 Comm: Plex Media Scan Tainted: P O 6.12.24-Unraid #1 Aug 27 19:42:29 Tower kernel: Tainted: [P]=PROPRIETARY_MODULE, [O]=OOT_MODULE Aug 27 19:42:29 Tower kernel: Hardware name: Gigabyte Technology Co., Ltd. Z790 D DDR4/Z790 D DDR4, BIOS F6 07/24/2023 Aug 27 19:42:29 Tower kernel: RIP: 0010:__pick_root_entity+0x5/0x20 Aug 27 19:42:29 Tower kernel: Code: 90 90 90 90 90 0f 1f 44 00 00 48 8b 76 70 e9 a2 a4 ff ff 66 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1f 44 00 00 <48> 8b 47 40 48 85 c0 74 04 48 83 e8 10 c3 cc cc cc cc 66 0f 1f 84 Aug 27 19:42:29 Tower kernel: RSP: 0018:ffffc9002f997dd8 EFLAGS: 00010002 Aug 27 19:42:29 Tower kernel: RAX: 0000000000000200 RBX: 00000000000002df RCX: 000016cda163c647 Aug 27 19:42:29 Tower kernel: RDX: 0000000000000201 RSI: ffff88946f6b0040 RDI: 00000000000002df Aug 27 19:42:29 Tower kernel: RBP: ffff88946f6affc0 R08: 0000000000000000 R09: 0000000000000004 Aug 27 19:42:29 Tower kernel: R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 Aug 27 19:42:29 Tower kernel: R13: ffff88946f6b0040 R14: 0000000000000000 R15: ffff888719603858 Aug 27 19:42:29 Tower kernel: FS: 0000154531dd9b00(0000) GS:ffff88946f680000(0000) knlGS:0000000000000000 Aug 27 19:42:29 Tower kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Aug 27 19:42:29 Tower kernel: CR2: 000000000000031f CR3: 000000010480e001 CR4: 0000000000772ef0 Aug 27 19:42:29 Tower kernel: PKRU: 55555554 Aug 27 19:42:29 Tower kernel: Call Trace: Aug 27 19:42:29 Tower kernel: <TASK> Aug 27 19:42:29 Tower kernel: cfs_rq_min_slice+0x9/0x40 Aug 27 19:42:29 Tower kernel: dequeue_entities+0x96/0x360 Aug 27 19:42:29 Tower kernel: ? update_curr+0xdf/0x150 Aug 27 19:42:29 Tower kernel: pick_task_fair+0xac/0xf0 Aug 27 19:42:29 Tower kernel: pick_next_task_fair+0x20/0x230 Aug 27 19:42:29 Tower kernel: __schedule+0x21c/0x760 Aug 27 19:42:29 Tower kernel: ? _raw_spin_lock+0x13/0x20 Aug 27 19:42:29 Tower kernel: ? raw_spin_rq_lock_nested+0x1b/0x30 Aug 27 19:42:29 Tower kernel: schedule+0x2e/0x50 Aug 27 19:42:29 Tower kernel: __do_sys_sched_yield+0xa/0x20 Aug 27 19:42:29 Tower kernel: do_syscall_64+0x68/0xe0 Aug 27 19:42:29 Tower kernel: entry_SYSCALL_64_after_hwframe+0x76/0x7e Aug 27 19:42:29 Tower kernel: RIP: 0033:0x15453d04b57a Aug 27 19:42:29 Tower kernel: Code: 0f 05 9b 48 89 c7 e9 45 38 fd ff 48 c7 c7 da ff ff ff e9 39 38 fd ff 48 c7 c7 da ff ff ff e9 2d 38 fd ff b8 18 00 00 00 0f 05 <9b> 48 89 c7 e9 1d 38 fd ff 48 8d 35 f6 eb 01 00 e9 00 00 00 00 41 Aug 27 19:42:29 Tower kernel: RSP: 002b:0000154531dd8b38 EFLAGS: 00000206 ORIG_RAX: 0000000000000018 Aug 27 19:42:29 Tower kernel: RAX: ffffffffffffffda RBX: 00000000000000d6 RCX: 000015453d04b57a Aug 27 19:42:29 Tower kernel: RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 Aug 27 19:42:29 Tower kernel: RBP: 0000154531dd8bb0 R08: 0000000000000004 R09: 0000000000000014 Aug 27 19:42:29 Tower kernel: R10: 0000000000000001 R11: 0000000000000206 R12: 0000154536bf8250 Aug 27 19:42:29 Tower kernel: R13: 0000154535645e10 R14: 0000154536bf8220 R15: 0000154536bf81f0 Aug 27 19:42:29 Tower kernel: </TASK> Aug 27 19:42:29 Tower kernel: Modules linked in: xt_connmark xt_comment iptable_raw wireguard curve25519_x86_64 libcurve25519_generic libchacha20poly1305 chacha_x86_64 poly1305_x86_64 ip6_udp_tunnel udp_tunnel libchacha xt_CHECKSUM ipt_REJECT nf_reject_ipv4 ip6table_mangle iptable_mangle vhost_net vhost vhost_iotlb tap xt_nat veth ipvlan nf_conntrack_netlink xt_conntrack xfrm_user xfrm_algo xt_addrtype nfsd xt_MASQUERADE xt_tcpudp auth_rpcgss lockd xt_mark grace sunrpc tun nf_tables nfnetlink ip6table_nat iptable_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 md_mod zfs(PO) spl(O) ntfs3 tcp_diag inet_diag jc42 regmap_i2c ip6table_filter ip6_tables iptable_filter ip_tables x_tables efivarfs af_packet cfg80211 rfkill bridge 8021q garp mrp stp llc bonding tls xe drm_gpuvm drm_exec gpu_sched drm_suballoc_helper intel_rapl_common x86_pkg_temp_thermal intel_powerclamp coretemp nvidia_drm(PO) nvidia_modeset(PO) kvm_intel i915 nvidia(PO) kvm crct10dif_pclmul crc32_pclmul crc32c_intel ghash_clmulni_intel iosf_mbi sha512_ssse3 drm_buddy Aug 27 19:42:29 Tower kernel: sha256_ssse3 i2c_algo_bit sha1_ssse3 drm_display_helper aesni_intel drm_ttm_helper ttm crypto_simd cryptd drm_kms_helper cp210x usbserial mei_hdcp mei_pxp rapl tpm_crb intel_cstate drm gigabyte_wmi wmi_bmof r8169 intel_uncore nvme mei_me intel_gtt i2c_i801 ahci agpgart realtek tpm_tis nvme_core i2c_smbus mei tpm_tis_core led_class i2c_core libahci tpm thermal video fan wmi libaescfb ecdh_generic ecc backlight acpi_tad acpi_pad button Aug 27 19:42:29 Tower kernel: CR2: 000000000000031f Aug 27 19:42:29 Tower kernel: ---[ end trace 0000000000000000 ]--- Aug 27 19:42:29 Tower kernel: RIP: 0010:__pick_root_entity+0x5/0x20 Aug 27 19:42:29 Tower kernel: Code: 90 90 90 90 90 0f 1f 44 00 00 48 8b 76 70 e9 a2 a4 ff ff 66 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1f 44 00 00 <48> 8b 47 40 48 85 c0 74 04 48 83 e8 10 c3 cc cc cc cc 66 0f 1f 84 Aug 27 19:42:29 Tower kernel: RSP: 0018:ffffc9002f997dd8 EFLAGS: 00010002 Aug 27 19:42:29 Tower kernel: RAX: 0000000000000200 RBX: 00000000000002df RCX: 000016cda163c647 Aug 27 19:42:29 Tower kernel: RDX: 0000000000000201 RSI: ffff88946f6b0040 RDI: 00000000000002df Aug 27 19:42:29 Tower kernel: RBP: ffff88946f6affc0 R08: 0000000000000000 R09: 0000000000000004 Aug 27 19:42:29 Tower kernel: R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 Aug 27 19:42:29 Tower kernel: R13: ffff88946f6b0040 R14: 0000000000000000 R15: ffff888719603858 Aug 27 19:42:29 Tower kernel: FS: 0000154531dd9b00(0000) GS:ffff88946f680000(0000) knlGS:0000000000000000 Aug 27 19:42:29 Tower kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Aug 27 19:42:29 Tower kernel: CR2: 000000000000031f CR3: 000000010480e001 CR4: 0000000000772ef0 Aug 27 19:42:29 Tower kernel: PKRU: 55555554 Aug 27 19:42:29 Tower kernel: note: Plex Media Scan[1069595] exited with irqs disabled Aug 27 19:42:41 Tower kernel: r8169 0000:06:00.0 eth0: NETDEV WATCHDOG: CPU: 18: transmit queue 0 timed out 5001 ms Aug 27 19:42:46 Tower kernel: r8169 0000:06:00.0 eth0: NETDEV WATCHDOG: CPU: 18: transmit queue 0 timed out 10122 ms
August 28, 2025Aug 28 Author I ran memtest a few weeks ago when it first started having issues. No errors were captured back then, the log would just end. It only crashes once a week or so. But I will run it again and run it if for longer to see.
August 28, 2025Aug 28 Community Expert 46 minutes ago, scraw089 said:I ran memtest a few weeks ago when it first started having issues. No errors were captured back then, the log would just end. It only crashes once a week or so. But I will run it again and run it if for longer to see.Try running on one stick for a while, then the other, to see if it continues. Also, make sure your board's BIOS is up to date
August 29, 2025Aug 29 Author I ran 10 passes of memtest without any errors. My bios was quite out of date though so I updated that. Will let it run a bit and see what happens, thanks.
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