Server unresponsive with dmesg output

hippymastiff

New Member
Oct 31, 2025
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Hello, I started my adventure with Proxmox in September, but I have not been able to figure out the following problem.

In September, I installed Proxmox 9.0 via ISO. The installation went smoothly, but after a week, the first problems arose with the server becoming unresponsive and the webUI unreachable.
So, in October, I decided to install version 8.4, again from ISO, but the problem does not seem to have been resolved. I updated from 8.4 to 9.0, but the server continues with his behaviour.
After the interruption, the server does not shut down and by looking at the screen connected to the server, I noticed that the output of dmesg (I believe) is displayed (see image below), without the possibility of interacting with the server in any way.

20251103_133945.jpg

In the last session, I had the following machines running:
- LXC with AdGuardHome
- LXC with NginxProxyManager
- VM with Proxmox Backup Server
- VM with pFsense

Before the interruption, I was performing the backup job via the Proxmox Backup Server VM. On other sessions, however, the Proxmox Backup Server VM was not even turned on.

I have already attempted to check the RAM using memtest86+ without finding any errors (PASS).

What do you think I can do to find the root cause of the problem?

Below are the details of my server:

Code:
root@pve:~# pveversion -v
proxmox-ve: 9.0.0 (running kernel: 6.14.11-4-pve)
pve-manager: 9.0.11 (running version: 9.0.11/3bf5476b8a4699e2)
proxmox-kernel-helper: 9.0.4
proxmox-kernel-6.14.11-4-pve-signed: 6.14.11-4
proxmox-kernel-6.14: 6.14.11-4
proxmox-kernel-6.8: 6.8.12-16
proxmox-kernel-6.8.12-16-pve-signed: 6.8.12-16
proxmox-kernel-6.8.12-15-pve-signed: 6.8.12-15
proxmox-kernel-6.8.12-9-pve-signed: 6.8.12-9
ceph-fuse: 19.2.3-pve1
corosync: 3.1.9-pve2
criu: 4.1.1-1
frr-pythontools: 10.3.1-1+pve4
ifupdown2: 3.3.0-1+pmx10
ksm-control-daemon: 1.5-1
libjs-extjs: 7.0.0-5
libproxmox-acme-perl: 1.7.0
libproxmox-backup-qemu0: 2.0.1
libproxmox-rs-perl: 0.4.1
libpve-access-control: 9.0.3
libpve-apiclient-perl: 3.4.0
libpve-cluster-api-perl: 9.0.6
libpve-cluster-perl: 9.0.6
libpve-common-perl: 9.0.11
libpve-guest-common-perl: 6.0.2
libpve-http-server-perl: 6.0.5
libpve-network-perl: 1.1.8
libpve-rs-perl: 0.10.10
libpve-storage-perl: 9.0.13
libspice-server1: 0.15.2-1+b1
lvm2: 2.03.31-2+pmx1
lxc-pve: 6.0.5-1
lxcfs: 6.0.4-pve1
novnc-pve: 1.6.0-3
proxmox-backup-client: 4.0.16-1
proxmox-backup-file-restore: 4.0.16-1
proxmox-backup-restore-image: 1.0.0
proxmox-firewall: 1.2.0
proxmox-kernel-helper: 9.0.4
proxmox-mail-forward: 1.0.2
proxmox-mini-journalreader: 1.6
proxmox-offline-mirror-helper: 0.7.2
proxmox-widget-toolkit: 5.0.6
pve-cluster: 9.0.6
pve-container: 6.0.13
pve-docs: 9.0.8
pve-edk2-firmware: 4.2025.02-4
pve-esxi-import-tools: 1.0.1
pve-firewall: 6.0.3
pve-firmware: 3.17-2
pve-ha-manager: 5.0.5
pve-i18n: 3.6.1
pve-qemu-kvm: 10.0.2-4
pve-xtermjs: 5.5.0-2
qemu-server: 9.0.23
smartmontools: 7.4-pve1
spiceterm: 3.4.1
swtpm: 0.8.0+pve2
vncterm: 1.9.1
zfsutils-linux: 2.3.4-pve1

Output of journalctl -b -1 -o short-precise: https://paaster.io/69091b1b07bde492dd2d474e#rq1qrfFbjqAxzp4U2-Qv__Z1rC6uzdApJgpJBUhsBQo

Here's my hardware setup:
  • ASUS TUF Gaming B760M-PLUS and the
  • Intel Core i9 12900K
  • Crucial Pro RAM DDR5 Kit 64GB
  • WD_BLACK SN850X 2TB SSD
  • Cooler Master MWE 750 Gold V2
 
Hello,

I booted my server without any machines up and it ended up freezing again. After the last freeze I managed to get maybe the error from journalctl -b -1 -o short-precise:

[...]
Nov 06 23:35:01.227036 pve kernel: Oops: general protection fault, probably for non-canonical address 0xff838e34192dff80: 0000 [#8] PREEMPT SMP NOPTI
Nov 06 23:35:01.227849 pve kernel: CPU: 16 UID: 0 PID: 20994 Comm: master Tainted: P D O 6.14.11-4-pve #1
Nov 06 23:35:01.227863 pve kernel: Tainted: [P]=PROPRIETARY_MODULE, [D]=DIE, [O]=OOT_MODULE
Nov 06 23:35:01.227870 pve kernel: Hardware name: ASUS System Product Name/TUF GAMING B760M-PLUS WIFI, BIOS 1805 10/30/2024
Nov 06 23:35:01.227877 pve kernel: RIP: 0010:kmem_cache_alloc_noprof+0x205/0x3e0
Nov 06 23:35:01.227883 pve kernel: Code: 84 cd fe ff ff 48 85 db 0f 84 c4 fe ff ff 48 8b 03 48 c1 e8 36 41 39 c2 0f 85 b4 fe ff ff 41 8b 44 24 28 49 8b 34 24 48 01 f8 <48> 8b 18 48 89 c1 49 33 9c 24 b8 00 00 00 48 89 f8 48 0f c9 48 31
Nov 06 23:35:01.227889 pve kernel: RSP: 0018:ffffd32723ad79f0 EFLAGS: 00010282
Nov 06 23:35:01.227898 pve kernel: RAX: ff838e34192dff80 RBX: fffff77b04678380 RCX: 0000000000000000
Nov 06 23:35:01.227904 pve kernel: RDX: 0000000072bcc010 RSI: 000000000003e1a0 RDI: ff838e34192dff00
Nov 06 23:35:01.227909 pve kernel: RBP: ffffd32723ad7a40 R08: 0000000000000000 R09: 0000000000000000
Nov 06 23:35:01.227916 pve kernel: R10: 00000000ffffffff R11: 0000000000000000 R12: ffff8e3400055e00
Nov 06 23:35:01.227923 pve kernel: R13: 0000000000000cc0 R14: 0000000000000100 R15: ffffffff9460e568
Nov 06 23:35:01.227929 pve kernel: FS: 00007bf30c227780(0000) GS:ffff8e433f400000(0000) knlGS:0000000000000000
Nov 06 23:35:01.227936 pve kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
Nov 06 23:35:01.227943 pve kernel: CR2: 00007bf30c73fe28 CR3: 0000000109de2004 CR4: 0000000000f72ef0
Nov 06 23:35:01.227949 pve kernel: PKRU: 55555554
Nov 06 23:35:01.227956 pve kernel: Call Trace:
Nov 06 23:35:01.227964 pve kernel: <TASK>
Nov 06 23:35:01.227969 pve kernel: ? __alloc_frozen_pages_noprof+0x1c4/0x11f0
Nov 06 23:35:01.227975 pve kernel: mas_alloc_nodes+0x178/0x1f0
Nov 06 23:35:01.227981 pve kernel: mas_node_count_gfp+0x40/0x80
Nov 06 23:35:01.227988 pve kernel: mas_preallocate+0x129/0x270
Nov 06 23:35:01.227993 pve kernel: ? mod_memcg_state.constprop.0+0x2a/0x50
Nov 06 23:35:01.228000 pve kernel: vma_link+0x6b/0x160
Nov 06 23:35:01.228005 pve kernel: insert_vm_struct+0x79/0x100
Nov 06 23:35:01.228011 pve kernel: alloc_bprm+0x2a0/0x3e0
Nov 06 23:35:01.228018 pve kernel: do_execveat_common.isra.0+0x97/0x1d0
Nov 06 23:35:01.228023 pve kernel: __x64_sys_execve+0x37/0x60
Nov 06 23:35:01.228029 pve kernel: x64_sys_call+0x1f42/0x2310
Nov 06 23:35:01.228035 pve kernel: do_syscall_64+0x7e/0x170
Nov 06 23:35:01.228041 pve kernel: ? do_wp_page+0x84e/0xd50
Nov 06 23:35:01.228048 pve kernel: ? __handle_mm_fault+0xb43/0x1040
Nov 06 23:35:01.228055 pve kernel: ? __count_memcg_events+0xc0/0x160
Nov 06 23:35:01.228061 pve kernel: ? count_memcg_events.constprop.0+0x2a/0x50
Nov 06 23:35:01.228066 pve kernel: ? handle_mm_fault+0x22d/0x350
Nov 06 23:35:01.228072 pve kernel: ? do_user_addr_fault+0x5e9/0x7e0
Nov 06 23:35:01.228078 pve kernel: ? arch_exit_to_user_mode_prepare.isra.0+0x22/0x120
Nov 06 23:35:01.228083 pve kernel: ? irqentry_exit_to_user_mode+0x2d/0x1d0
Nov 06 23:35:01.228088 pve kernel: ? irqentry_exit+0x43/0x50
Nov 06 23:35:01.228095 pve kernel: ? exc_page_fault+0x96/0x1e0
Nov 06 23:35:01.228101 pve kernel: entry_SYSCALL_64_after_hwframe+0x76/0x7e
Nov 06 23:35:01.228106 pve kernel: RIP: 0033:0x7bf30c62edd7
Nov 06 23:35:01.228111 pve kernel: Code: af e8 ed ed 03 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 48 8b 05 d9 91 10 00 48 8b 10 e9 01 00 00 00 90 b8 3b 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d f1 8f 10 00 f7 d8 64 89 01 48
Nov 06 23:35:01.228118 pve kernel: RSP: 002b:00007ffc2c54daa8 EFLAGS: 00000202 ORIG_RAX: 000000000000003b
Nov 06 23:35:01.228124 pve kernel: RAX: ffffffffffffffda RBX: 00005d38b3cee1e0 RCX: 00007bf30c62edd7
Nov 06 23:35:01.228131 pve kernel: RDX: 00005d38b3cedab0 RSI: 00005d38b3cf1b30 RDI: 00005d38b3cee1e0
Nov 06 23:35:01.228138 pve kernel: RBP: 00007ffc2c54db20 R08: 00005d38b3ceda50 R09: 00000000ffffffff
Nov 06 23:35:01.228144 pve kernel: R10: 0000000000000000 R11: 0000000000000202 R12: 00005d38b3cf1b30
Nov 06 23:35:01.228150 pve kernel: R13: 00005d38b3cedab0 R14: 0000000000000001 R15: 0000000000000001
Nov 06 23:35:01.228156 pve kernel: </TASK>
Nov 06 23:35:01.228163 pve kernel: Modules linked in: ebtable_filter ebtables ip_set ip6table_raw iptable_raw ip6table_filter ip6_tables iptable_filter nf_tables sunrpc bonding tls binfmt_misc nfnetlink_log xe drm_gpuvm gpu_sched drm_ttm_helper drm_exec drm_suballoc_helper snd_hda_codec_realtek snd_hda_codec_generic snd_hda_scodec_component snd_sof_pci_intel_tgl snd_sof_pci_intel_cnl snd_sof_intel_hda_generic soundwire_intel soundwire_cadence snd_sof_intel_hda_common snd_soc_hdac_hda snd_sof_intel_hda_mlink snd_sof_intel_hda intel_rapl_msr snd_hda_codec_hdmi intel_rapl_common snd_sof_pci intel_uncore_frequency snd_sof_xtensa_dsp intel_uncore_frequency_common intel_tcc_cooling x86_pkg_temp_thermal snd_sof intel_powerclamp coretemp snd_sof_utils snd_soc_acpi_intel_match snd_soc_acpi_intel_sdca_quirks soundwire_generic_allocation snd_soc_acpi soundwire_bus snd_soc_sdca iwlmvm kvm_intel snd_soc_avs snd_soc_hda_codec snd_hda_ext_core mac80211 kvm snd_soc_core snd_compress ac97_bus snd_pcm_dmaengine irqbypass libarc4 snd_hda_intel btusb
Nov 06 23:35:01.228181 pve kernel: sch_fq_codel polyval_clmulni snd_intel_dspcfg snd_intel_sdw_acpi btrtl polyval_generic i915 ghash_clmulni_intel btintel snd_hda_codec sha256_ssse3 iwlwifi btbcm drm_buddy sha1_ssse3 snd_hda_core btmtk ttm aesni_intel snd_hwdep crypto_simd snd_pcm mei_hdcp mei_pxp cmdlinepart drm_display_helper cryptd spi_nor snd_timer cfg80211 rapl cec mtd bluetooth asus_nb_wmi intel_cstate joydev snd input_leds spd5118 eeepc_wmi rc_core wmi_bmof pcspkr soundcore i2c_algo_bit intel_pmc_core pmt_telemetry pmt_class intel_vsec acpi_pad acpi_tad mei_me mac_hid mei zfs(PO) spl(O) vhost_net vhost vhost_iotlb tap efi_pstore nfnetlink dmi_sysfs ip_tables x_tables autofs4 btrfs blake2b_generic xor raid6_pq hid_generic usbkbd usbhid hid uas usb_storage dm_thin_pool dm_persistent_data dm_bio_prison dm_bufio mfd_aaeon asus_wmi sparse_keymap platform_profile nvme xhci_pci i2c_i801 i2c_mux r8169 spi_intel_pci nvme_core xhci_hcd ahci i2c_smbus spi_intel intel_lpss_pci realtek intel_lpss nvme_auth libahci idma64 video wmi
Nov 06 23:35:01.228189 pve kernel: pinctrl_alderlake
Nov 06 23:35:01.228195 pve kernel: ---[ end trace 0000000000000000 ]---
Nov 06 23:35:01.250709 pve kernel: RIP: 0010:kmem_cache_alloc_bulk_noprof+0x90/0x4e0
Nov 06 23:35:01.252828 pve kernel: Code: 24 65 4c 03 2d 89 7f 6c 6c 9c 58 0f 1f 40 00 49 89 c0 fa 0f 1f 44 00 00 31 db 45 31 f6 4d 89 fa eb 37 41 8b 44 24 28 48 01 c8 <48> 8b 10 48 89 c6 49 33 94 24 b8 00 00 00 48 0f ce 48 31 f2 49 89
Nov 06 23:35:01.252870 pve kernel: RSP: 0018:ffffd32701a3b980 EFLAGS: 00010082
Nov 06 23:35:01.253919 pve kernel: RAX: ff838e34192dff80 RBX: 0000000000000009 RCX: ff838e34192dff00
Nov 06 23:35:01.255017 pve kernel: RDX: ff838e34192dff00 RSI: 80f8e019348effff RDI: 0000000000000000
Nov 06 23:35:01.256093 pve kernel: RBP: ffffd32701a3ba00 R08: 0000000000000286 R09: 0000000000000000
Nov 06 23:35:01.257165 pve kernel: R10: 000000000000000a R11: ffff8e3419e0ec50 R12: ffff8e3400055e00
Nov 06 23:35:01.258205 pve kernel: R13: ffff8e433f43e1a0 R14: 0000000000000009 R15: ffff8e3419e0ec98
Nov 06 23:35:01.259258 pve kernel: FS: 00007bf30c227780(0000) GS:ffff8e433f400000(0000) knlGS:0000000000000000
Nov 06 23:35:01.260312 pve kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
Nov 06 23:35:01.261339 pve kernel: CR2: 00007bf30c73fe28 CR3: 0000000109de2004 CR4: 0000000000f72ef0
Nov 06 23:35:01.262323 pve kernel: PKRU: 55555554
Nov 06 23:35:01.263516 pve postfix/master[1705]: warning: process /usr/lib/postfix/sbin/pickup pid 20994 killed by signal 11
Nov 06 23:35:01.263518 pve postfix/master[1705]: warning: /usr/lib/postfix/sbin/pickup: bad command startup -- throttling
Nov 07 00:00:02.530832 pve systemd[1]: Starting dpkg-db-backup.service - Daily dpkg database backup service...
Nov 07 00:00:02.565310 pve systemd[1]: dpkg-db-backup.service: Deactivated successfully.
Nov 07 00:00:02.565392 pve systemd[1]: Finished dpkg-db-backup.service - Daily dpkg database backup service.
Nov 07 00:17:01.096299 pve CRON[21042]: pam_unix(cron:session): session opened for user root(uid=0) by root(uid=0)
Nov 07 00:17:01.096578 pve CRON[21044]: (root) CMD (cd / && run-parts --report /etc/cron.hourly)
Nov 07 00:17:01.097774 pve CRON[21042]: pam_unix(cron:session): session closed for user root
Nov 07 00:24:01.104091 pve CRON[21056]: pam_unix(cron:session): session opened for user root(uid=0) by root(uid=0)
Nov 07 00:24:01.104376 pve CRON[21058]: (root) CMD (if [ $(date +%w) -eq 0 ] && [ -x /usr/lib/zfs-linux/trim ]; then /usr/lib/zfs-linux/trim; fi)
Nov 07 00:24:01.105788 pve CRON[21056]: pam_unix(cron:session): session closed for user root

The logs state a "general protection fault, probably for non-canonical address 0xff838e34192dff80", regarding CPU 16.

As I've already done the memtest86+ memory test 2 times without any error, I assume that the problem is CPU related.

Do you think trying to disable CPU 16 might help identify the problem? Could I disable it using echo 0 > /sys/devices/system/cpu/cpu16/online?