这是我工作用的电脑。它是 Dell Precision 3630 Tower Workstation。我们购买它时，它最初配备了一个 256 GB 的 SSD + 1 TB 的 HD。我安装了 Kubuntu 18.04，root 位于 SSD 上，/home 位于 HD 上。
我遇到的问题基本上是我打开的任何应用程序，每 20 分钟就有 20% 的几率崩溃。我主要使用 Visual Studio Code (VS code)，每隔 20-40 分钟，编辑器就会停止响应，我必须等到它提示重新打开或退出（我不会丢失此程序中的任何文件/未保存的数据）。我相信 VS code 会产生多个进程，只有一个进程崩溃，因为我仍然可以单击菜单栏。此外，不同的窗口不会崩溃。只是崩溃窗口内的任何东西都没有响应。
此问题并非 VS Code 独有，Google Chrome 和其他工作应用程序也会崩溃并完全消失。此外，每隔一段时间就会出现一条通知，提示以太网连接断开，然后在 1 秒后重新连接。没有丢失互联网。
我以为问题可能出在 KDE plasma 5 上（因为这是我第一次使用它），所以我安装了 Gnome，但问题还是一样。另外请注意，这台电脑上有 32GB RAM（4GB 交换空间），所以内存耗尽从来不是问题。
我执行了以下操作但全部失败（主要是硬件问题）：
- 我安装了较新的内核（5.7），但问题仍然存在。
- 我移除了 ssd 和 hd，安装了新的 1tb ssd，并在其上从头安装了 Kubuntu 20.04（root 和 /home 在同一分区中）。同样的问题。
- 我使用 memtest86 进行了内存测试（https://www.memtest86.com/）。2 小时运行中没有问题（也在诊断工具中再次测试）
- PSU 有一个内置自检 (BIST)。我测试过了。没有问题。
- 我运行了 BIOS 中的诊断工具。它使用不同的压力测试来测试 CPU/GPU/内存/网卡/硬盘/PCIe 总线/电缆/风扇。没有问题。
据报道，该 PC 支持 Linux（我们购买时预装了 Ubuntu 18.04）。我还有此 PC 的最新 BIOS 固件（也重置了它）和新 SSD（1TB Samsung 860 EVO）的最新固件。
我不确定是什么导致了这个问题，我几乎尝试了所有方法，但都找不到原因。关于如何解决这个问题，有什么建议吗？下面是来自 /var/log/syslog 的 1 小时日志链接，其中 VS 代码崩溃了一次，LAN 连接重启了两次（出于隐私原因更改了名称/ip）
眼镜：
- CPU：Intel Core i7-8700 @ 3.20GHz，6 核，12 个逻辑
- 内存：2x16 GB（2666MHz）
- 显卡：AMD Radeon Pro WX 2100
编辑：VS Code 5 分钟前崩溃。以下是过去 5 分钟内 journalctl 的输出。
-- Logs begin at Fri 2020-07-17 20:41:33 EDT, end at Sun 2020-07-26 17:23:31 EDT. --
Jul 26 17:18:55 PC1-Linux1 systemd[1]: Starting Message of the Day...
Jul 26 17:18:55 PC1-Linux1 systemd[1]: motd-news.service: Succeeded.
Jul 26 17:18:55 PC1-Linux1 systemd[1]: Finished Message of the Day.
Jul 26 17:22:38 PC1-Linux1 kernel: traps: code[1671] general protection fault ip:55dacd92bda9 sp:7ffdef785fe0 error:0 in code[55dacc0bb000+51c7000]
Jul 26 17:23:28 PC1-Linux1 sudo[3151]: pam_unix(sudo:auth): Couldn't open /etc/securetty: No such file or directory
Jul 26 17:23:31 PC1-Linux1 sudo[3151]: pam_unix(sudo:auth): Couldn't open /etc/securetty: No such file or directory
Jul 26 17:23:31 PC1-Linux1 sudo[3151]: user1 : TTY=pts/2 ; PWD=/home/user1 ; USER=root ; COMMAND=/usr/bin/journalctl --since=-5 minutes
Jul 26 17:23:31 PC1-Linux1 sudo[3151]: pam_unix(sudo:session): session opened for user root by (uid=0)
编辑 2：LAN 连接也崩溃了。添加过去 5 分钟的 journalctl 输出
Jul 26 17:36:49 PC1-Linux1 sudo[3469]: pam_unix(sudo:session): session closed for user root
Jul 26 17:40:12 PC1-Linux1 NetworkManager[704]: <error> [1595799612.7782] dhcp4 (eno1): error -113 dispatching events
Jul 26 17:40:12 PC1-Linux1 NetworkManager[704]: <info> [1595799612.7782] dhcp4 (eno1): state changed bound -> fail
Jul 26 17:40:12 PC1-Linux1 NetworkManager[704]: <info> [1595799612.7783] device (eno1): DHCPv4: trying to acquire a new lease within 90 seconds
Jul 26 17:41:42 PC1-Linux1 NetworkManager[704]: <info> [1595799702.6503] device (eno1): DHCPv4: grace period expired
Jul 26 17:41:42 PC1-Linux1 NetworkManager[704]: <info> [1595799702.6504] device (eno1): state change: activated -> failed (reason 'ip-config-unavailable', sys-iface-state: 'managed')
Jul 26 17:41:42 PC1-Linux1 NetworkManager[704]: <warn> [1595799702.6548] device (eno1): Activation: failed for connection 'Wired connection 1'
Jul 26 17:41:42 PC1-Linux1 NetworkManager[704]: <info> [1595799702.6559] manager: NetworkManager state is now CONNECTED_LOCAL
Jul 26 17:41:42 PC1-Linux1 NetworkManager[704]: <info> [1595799702.6562] device (eno1): state change: failed -> disconnected (reason 'none', sys-iface-state: 'managed')
Jul 26 17:41:42 PC1-Linux1 avahi-daemon[698]: Withdrawing address record for MAC_REMOVED on eno1.
Jul 26 17:41:42 PC1-Linux1 avahi-daemon[698]: Leaving mDNS multicast group on interface eno1.IPv6 with address MAC_REMOVED.
Jul 26 17:41:42 PC1-Linux1 NetworkManager[704]: <info> [1595799702.6568] dhcp4 (eno1): canceled DHCP transaction
Jul 26 17:41:42 PC1-Linux1 avahi-daemon[698]: Interface eno1.IPv6 no longer relevant for mDNS.
Jul 26 17:41:42 PC1-Linux1 NetworkManager[704]: <info> [1595799702.6568] dhcp4 (eno1): state changed fail -> done
Jul 26 17:41:42 PC1-Linux1 avahi-daemon[698]: Withdrawing address record for REMOVED_IP51 on eno1.
Jul 26 17:41:42 PC1-Linux1 avahi-daemon[698]: Leaving mDNS multicast group on interface eno1.IPv4 with address REMOVED_IP51.
Jul 26 17:41:42 PC1-Linux1 avahi-daemon[698]: Interface eno1.IPv4 no longer relevant for mDNS.
Jul 26 17:41:42 PC1-Linux1 dbus-daemon[702]: [system] Activating via systemd: service name='org.freedesktop.nm_dispatcher' unit='dbus-org.freedesktop.nm-dispatcher.service' requested by ':1.10' (uid=0 pid=704 comm="/usr/sbin/NetworkManager --no-daemon " label="unc>
Jul 26 17:41:42 PC1-Linux1 systemd[1]: Starting Network Manager Script Dispatcher Service...
Jul 26 17:41:42 PC1-Linux1 NetworkManager[704]: <info> [1595799702.6629] policy: auto-activating connection 'Wired connection 1' (80d4d697-a540-3f51-9017-549c2ae2ce5b)
Jul 26 17:41:42 PC1-Linux1 NetworkManager[704]: <info> [1595799702.6639] device (eno1): Activation: starting connection 'Wired connection 1' (80d4d697-a540-3f51-9017-549c2ae2ce5b)
Jul 26 17:41:42 PC1-Linux1 avahi-daemon[698]: Joining mDNS multicast group on interface eno1.IPv6 with address MAC_REMOVED.
Jul 26 17:41:42 PC1-Linux1 whoopsie[1011]: [17:41:42] Cannot reach: https://daisy.ubuntu.com
Jul 26 17:41:42 PC1-Linux1 whoopsie[1011]: [17:41:42] offline
Jul 26 17:41:42 PC1-Linux1 NetworkManager[704]: <info> [1595799702.6640] device (eno1): state change: disconnected -> prepare (reason 'none', sys-iface-state: 'managed')
Jul 26 17:41:42 PC1-Linux1 avahi-daemon[698]: New relevant interface eno1.IPv6 for mDNS.
Jul 26 17:41:42 PC1-Linux1 NetworkManager[704]: <info> [1595799702.6642] manager: NetworkManager state is now CONNECTING
Jul 26 17:41:42 PC1-Linux1 avahi-daemon[698]: Registering new address record for MAC_REMOVED on eno1.*.
Jul 26 17:41:42 PC1-Linux1 NetworkManager[704]: <info> [1595799702.6644] device (eno1): state change: prepare -> config (reason 'none', sys-iface-state: 'managed')
Jul 26 17:41:42 PC1-Linux1 dbus-daemon[702]: [system] Successfully activated service 'org.freedesktop.nm_dispatcher'
Jul 26 17:41:42 PC1-Linux1 NetworkManager[704]: <info> [1595799702.6649] device (eno1): state change: config -> ip-config (reason 'none', sys-iface-state: 'managed')
Jul 26 17:41:42 PC1-Linux1 NetworkManager[704]: <info> [1595799702.6651] dhcp4 (eno1): activation: beginning transaction (timeout in 45 seconds)
Jul 26 17:41:42 PC1-Linux1 systemd[1]: Started Network Manager Script Dispatcher Service.
Jul 26 17:41:42 PC1-Linux1 nm-dispatcher[3535]: run-parts: failed to stat component /etc/network/if-post-down.d/avahi-daemon: No such file or directory
Jul 26 17:41:42 PC1-Linux1 NetworkManager[704]: <info> [1595799702.6713] dhcp4 (eno1): option dhcp_lease_time => '3600'
Jul 26 17:41:42 PC1-Linux1 NetworkManager[704]: <info> [1595799702.6713] dhcp4 (eno1): option domain_name => 'REMOVED_DOMAIN'
Jul 26 17:41:42 PC1-Linux1 NetworkManager[704]: <info> [1595799702.6713] dhcp4 (eno1): option domain_name_servers => 'REMOVED_IP2 REMOVED_IP1'
Jul 26 17:41:42 PC1-Linux1 NetworkManager[704]: <info> [1595799702.6713] dhcp4 (eno1): option expiry => '1595803302'
Jul 26 17:41:42 PC1-Linux1 NetworkManager[704]: <info> [1595799702.6713] dhcp4 (eno1): option host_name => 'user1_e4b97af22165'
Jul 26 17:41:42 PC1-Linux1 NetworkManager[704]: <info> [1595799702.6713] dhcp4 (eno1): option ip_address => 'REMOVED_IP51'
Jul 26 17:41:42 PC1-Linux1 NetworkManager[704]: <info> [1595799702.6713] dhcp4 (eno1): option requested_broadcast_address => '1'
Jul 26 17:41:42 PC1-Linux1 NetworkManager[704]: <info> [1595799702.6713] dhcp4 (eno1): option requested_domain_name => '1'
Jul 26 17:41:42 PC1-Linux1 NetworkManager[704]: <info> [1595799702.6713] dhcp4 (eno1): option requested_domain_name_servers => '1'
Jul 26 17:41:42 PC1-Linux1 NetworkManager[704]: <info> [1595799702.6713] dhcp4 (eno1): option requested_domain_search => '1'
Jul 26 17:41:42 PC1-Linux1 NetworkManager[704]: <info> [1595799702.6713] dhcp4 (eno1): option requested_host_name => '1'
Jul 26 17:41:42 PC1-Linux1 NetworkManager[704]: <info> [1595799702.6713] dhcp4 (eno1): option requested_interface_mtu => '1'
Jul 26 17:41:42 PC1-Linux1 NetworkManager[704]: <info> [1595799702.6713] dhcp4 (eno1): option requested_ms_classless_static_routes => '1'
Jul 26 17:41:42 PC1-Linux1 NetworkManager[704]: <info> [1595799702.6713] dhcp4 (eno1): option requested_nis_domain => '1'
Jul 26 17:41:42 PC1-Linux1 NetworkManager[704]: <info> [1595799702.6713] dhcp4 (eno1): option requested_nis_servers => '1'
Jul 26 17:41:42 PC1-Linux1 NetworkManager[704]: <info> [1595799702.6713] dhcp4 (eno1): option requested_ntp_servers => '1'
Jul 26 17:41:42 PC1-Linux1 NetworkManager[704]: <info> [1595799702.6713] dhcp4 (eno1): option requested_rfc3442_classless_static_routes => '1'
Jul 26 17:41:42 PC1-Linux1 avahi-daemon[698]: Joining mDNS multicast group on interface eno1.IPv4 with address REMOVED_IP51.
Jul 26 17:41:42 PC1-Linux1 NetworkManager[704]: <info> [1595799702.6713] dhcp4 (eno1): option requested_root_path => '1'
Jul 26 17:41:42 PC1-Linux1 avahi-daemon[698]: New relevant interface eno1.IPv4 for mDNS.
Jul 26 17:41:42 PC1-Linux1 NetworkManager[704]: <info> [1595799702.6713] dhcp4 (eno1): option requested_routers => '1'
Jul 26 17:41:42 PC1-Linux1 avahi-daemon[698]: Registering new address record for REMOVED_IP51 on eno1.IPv4.
Jul 26 17:41:42 PC1-Linux1 NetworkManager[704]: <info> [1595799702.6713] dhcp4 (eno1): option requested_static_routes => '1'
Jul 26 17:41:42 PC1-Linux1 NetworkManager[704]: <info> [1595799702.6713] dhcp4 (eno1): option requested_subnet_mask => '1'
Jul 26 17:41:42 PC1-Linux1 NetworkManager[704]: <info> [1595799702.6713] dhcp4 (eno1): option requested_time_offset => '1'
Jul 26 17:41:42 PC1-Linux1 NetworkManager[704]: <info> [1595799702.6713] dhcp4 (eno1): option requested_wpad => '1'
Jul 26 17:41:42 PC1-Linux1 NetworkManager[704]: <info> [1595799702.6714] dhcp4 (eno1): option routers => 'REMOVED_IP'
Jul 26 17:41:42 PC1-Linux1 NetworkManager[704]: <info> [1595799702.6714] dhcp4 (eno1): option subnet_mask => 'REMOVED_IP'
Jul 26 17:41:42 PC1-Linux1 NetworkManager[704]: <info> [1595799702.6714] dhcp4 (eno1): state changed unknown -> bound
Jul 26 17:41:42 PC1-Linux1 NetworkManager[704]: <info> [1595799702.6723] device (eno1): state change: ip-config -> ip-check (reason 'none', sys-iface-state: 'managed')
Jul 26 17:41:42 PC1-Linux1 whoopsie[1011]: [17:41:42] Cannot reach: https://daisy.ubuntu.com
Jul 26 17:41:42 PC1-Linux1 NetworkManager[704]: <info> [1595799702.6736] device (eno1): state change: ip-check -> secondaries (reason 'none', sys-iface-state: 'managed')
Jul 26 17:41:42 PC1-Linux1 NetworkManager[704]: <info> [1595799702.6738] device (eno1): state change: secondaries -> activated (reason 'none', sys-iface-state: 'managed')
Jul 26 17:41:42 PC1-Linux1 NetworkManager[704]: <info> [1595799702.6740] manager: NetworkManager state is now CONNECTED_LOCAL
Jul 26 17:41:42 PC1-Linux1 NetworkManager[704]: <info> [1595799702.6746] manager: NetworkManager state is now CONNECTED_SITE
Jul 26 17:41:42 PC1-Linux1 NetworkManager[704]: <info> [1595799702.6746] policy: set 'Wired connection 1' (eno1) as default for IPv4 routing and DNS
Jul 26 17:41:42 PC1-Linux1 NetworkManager[704]: <info> [1595799702.6750] device (eno1): Activation: successful, device activated.
Jul 26 17:41:42 PC1-Linux1 NetworkManager[704]: <info> [1595799702.6752] manager: NetworkManager state is now CONNECTED_GLOBAL
Jul 26 17:41:42 PC1-Linux1 whoopsie[1011]: [17:41:42] The default IPv4 route is: /org/freedesktop/NetworkManager/ActiveConnection/4
Jul 26 17:41:42 PC1-Linux1 whoopsie[1011]: [17:41:42] Not a paid data plan: /org/freedesktop/NetworkManager/ActiveConnection/4
Jul 26 17:41:42 PC1-Linux1 whoopsie[1011]: [17:41:42] Found usable connection: /org/freedesktop/NetworkManager/ActiveConnection/4
Jul 26 17:41:42 PC1-Linux1 whoopsie[1011]: [17:41:42] online
Jul 26 17:41:42 PC1-Linux1 systemd-resolved[656]: Server returned error NXDOMAIN, mitigating potential DNS violation DVE-2018-0001, retrying transaction with reduced feature level UDP.
Jul 26 17:41:42 PC1-Linux1 systemd-resolved[656]: Server returned error NXDOMAIN, mitigating potential DNS violation DVE-2018-0001, retrying transaction with reduced feature level UDP.
Jul 26 17:41:42 PC1-Linux1 systemd-resolved[656]: Server returned error NXDOMAIN, mitigating potential DNS violation DVE-2018-0001, retrying transaction with reduced feature level UDP.
Jul 26 17:41:42 PC1-Linux1 systemd-resolved[656]: Server returned error NXDOMAIN, mitigating potential DNS violation DVE-2018-0001, retrying transaction with reduced feature level UDP.
Jul 26 17:41:42 PC1-Linux1 systemd-resolved[656]: Server returned error NXDOMAIN, mitigating potential DNS violation DVE-2018-0001, retrying transaction with reduced feature level UDP.
Jul 26 17:41:43 PC1-Linux1 systemd-resolved[656]: Server returned error NXDOMAIN, mitigating potential DNS violation DVE-2018-0001, retrying transaction with reduced feature level UDP.
Jul 26 17:41:43 PC1-Linux1 systemd-resolved[656]: Server returned error NXDOMAIN, mitigating potential DNS violation DVE-2018-0001, retrying transaction with reduced feature level UDP.
Jul 26 17:41:43 PC1-Linux1 systemd-resolved[656]: Server returned error NXDOMAIN, mitigating potential DNS violation DVE-2018-0001, retrying transaction with reduced feature level UDP.
Jul 26 17:41:43 PC1-Linux1 systemd-resolved[656]: Server returned error NXDOMAIN, mitigating potential DNS violation DVE-2018-0001, retrying transaction with reduced feature level UDP.
Jul 26 17:41:43 PC1-Linux1 systemd-resolved[656]: Server returned error NXDOMAIN, mitigating potential DNS violation DVE-2018-0001, retrying transaction with reduced feature level UDP.
Jul 26 17:41:43 PC1-Linux1 systemd-resolved[656]: Server returned error NXDOMAIN, mitigating potential DNS violation DVE-2018-0001, retrying transaction with reduced feature level UDP.
Jul 26 17:41:43 PC1-Linux1 systemd-resolved[656]: Server returned error NXDOMAIN, mitigating potential DNS violation DVE-2018-0001, retrying transaction with reduced feature level UDP.
Jul 26 17:41:43 PC1-Linux1 systemd-resolved[656]: Server returned error NXDOMAIN, mitigating potential DNS violation DVE-2018-0001, retrying transaction with reduced feature level UDP.
Jul 26 17:41:43 PC1-Linux1 systemd-resolved[656]: Server returned error NXDOMAIN, mitigating potential DNS violation DVE-2018-0001, retrying transaction with reduced feature level UDP.
Jul 26 17:41:43 PC1-Linux1 systemd-resolved[656]: Server returned error NXDOMAIN, mitigating potential DNS violation DVE-2018-0001, retrying transaction with reduced feature level UDP.
Jul 26 17:41:43 PC1-Linux1 systemd-resolved[656]: Server returned error NXDOMAIN, mitigating potential DNS violation DVE-2018-0001, retrying transaction with reduced feature level UDP.
Jul 26 17:41:43 PC1-Linux1 systemd-resolved[656]: Server returned error NXDOMAIN, mitigating potential DNS violation DVE-2018-0001, retrying transaction with reduced feature level UDP.
Jul 26 17:41:43 PC1-Linux1 systemd-resolved[656]: Server returned error NXDOMAIN, mitigating potential DNS violation DVE-2018-0001, retrying transaction with reduced feature level UDP.
Jul 26 17:41:43 PC1-Linux1 systemd-resolved[656]: Server returned error NXDOMAIN, mitigating potential DNS violation DVE-2018-0001, retrying transaction with reduced feature level UDP.
Jul 26 17:41:43 PC1-Linux1 systemd-resolved[656]: Server returned error NXDOMAIN, mitigating potential DNS violation DVE-2018-0001, retrying transaction with reduced feature level UDP.
Jul 26 17:41:44 PC1-Linux1 systemd-resolved[656]: Server returned error NXDOMAIN, mitigating potential DNS violation DVE-2018-0001, retrying transaction with reduced feature level UDP.
Jul 26 17:41:44 PC1-Linux1 systemd-resolved[656]: Server returned error NXDOMAIN, mitigating potential DNS violation DVE-2018-0001, retrying transaction with reduced feature level UDP.
Jul 26 17:41:44 PC1-Linux1 systemd-resolved[656]: Server returned error NXDOMAIN, mitigating potential DNS violation DVE-2018-0001, retrying transaction with reduced feature level UDP.
Jul 26 17:41:44 PC1-Linux1 systemd-resolved[656]: Server returned error NXDOMAIN, mitigating potential DNS violation DVE-2018-0001, retrying transaction with reduced feature level UDP.
Jul 26 17:41:44 PC1-Linux1 systemd-resolved[656]: Server returned error NXDOMAIN, mitigating potential DNS violation DVE-2018-0001, retrying transaction with reduced feature level UDP.
Jul 26 17:41:44 PC1-Linux1 systemd-resolved[656]: Server returned error NXDOMAIN, mitigating potential DNS violation DVE-2018-0001, retrying transaction with reduced feature level UDP.
Jul 26 17:41:44 PC1-Linux1 systemd-resolved[656]: Server returned error NXDOMAIN, mitigating potential DNS violation DVE-2018-0001, retrying transaction with reduced feature level UDP.
Jul 26 17:41:45 PC1-Linux1 systemd-resolved[656]: Server returned error NXDOMAIN, mitigating potential DNS violation DVE-2018-0001, retrying transaction with reduced feature level UDP.
Jul 26 17:41:45 PC1-Linux1 systemd-resolved[656]: Server returned error NXDOMAIN, mitigating potential DNS violation DVE-2018-0001, retrying transaction with reduced feature level UDP.
Jul 26 17:41:45 PC1-Linux1 systemd-resolved[656]: Server returned error NXDOMAIN, mitigating potential DNS violation DVE-2018-0001, retrying transaction with reduced feature level UDP.
Jul 26 17:41:45 PC1-Linux1 systemd-resolved[656]: Server returned error NXDOMAIN, mitigating potential DNS violation DVE-2018-0001, retrying transaction with reduced feature level UDP.
Jul 26 17:41:45 PC1-Linux1 systemd-resolved[656]: Server returned error NXDOMAIN, mitigating potential DNS violation DVE-2018-0001, retrying transaction with reduced feature level UDP.
Jul 26 17:41:45 PC1-Linux1 systemd-resolved[656]: Server returned error NXDOMAIN, mitigating potential DNS violation DVE-2018-0001, retrying transaction with reduced feature level UDP.
Jul 26 17:41:45 PC1-Linux1 systemd-resolved[656]: Server returned error NXDOMAIN, mitigating potential DNS violation DVE-2018-0001, retrying transaction with reduced feature level UDP.
Jul 26 17:41:45 PC1-Linux1 systemd-resolved[656]: Server returned error NXDOMAIN, mitigating potential DNS violation DVE-2018-0001, retrying transaction with reduced feature level UDP.
Jul 26 17:41:45 PC1-Linux1 systemd-resolved[656]: Server returned error NXDOMAIN, mitigating potential DNS violation DVE-2018-0001, retrying transaction with reduced feature level UDP.
Jul 26 17:41:45 PC1-Linux1 systemd-resolved[656]: Server returned error NXDOMAIN, mitigating potential DNS violation DVE-2018-0001, retrying transaction with reduced feature level UDP.
Jul 26 17:41:45 PC1-Linux1 systemd-resolved[656]: Server returned error NXDOMAIN, mitigating potential DNS violation DVE-2018-0001, retrying transaction with reduced feature level UDP.
Jul 26 17:41:45 PC1-Linux1 systemd-resolved[656]: Server returned error NXDOMAIN, mitigating potential DNS violation DVE-2018-0001, retrying transaction with reduced feature level UDP.
Jul 26 17:41:45 PC1-Linux1 systemd-resolved[656]: Server returned error NXDOMAIN, mitigating potential DNS violation DVE-2018-0001, retrying transaction with reduced feature level UDP.
输出free -h
total used free shared buff/cache available
Mem: 31Gi 1.3Gi 28Gi 52Mi 1.5Gi 29Gi
Swap: 2.0Gi 0B 2.0Gi
输出sudo lshw -C memory
*-firmware
description: BIOS
vendor: Dell Inc.
physical id: 0
version: 2.5.0
date: 02/05/2020
size: 64KiB
capacity: 32MiB
capabilities: pci pnp upgrade shadowing cdboot bootselect edd int13floppy1200 int13floppy720 int13floppy2880 int5printscreen int9keyboard int14serial int17printer acpi usb biosbootspecification netboot uefi
*-memory
description: System Memory
physical id: 9
slot: System board or motherboard
size: 32GiB
*-bank:0
description: DIMM DDR4 Synchronous 2666 MHz (0.4 ns)
product: HMA82GU6JJR8N-VK
vendor: Hynix Semiconductor (Hyundai Electronics)
physical id: 0
serial: 72DB71AA
slot: DIMM1
size: 16GiB
width: 64 bits
clock: 2666MHz (0.4ns)
*-bank:1
description: DIMM DDR4 Synchronous 2666 MHz (0.4 ns)
product: HMA82GU6JJR8N-VK
vendor: Hynix Semiconductor (Hyundai Electronics)
physical id: 1
serial: 72DB71A7
slot: DIMM2
size: 16GiB
width: 64 bits
clock: 2666MHz (0.4ns)
*-bank:2
description: [empty]
physical id: 2
slot: DIMM3
*-bank:3
description: [empty]
physical id: 3
slot: DIMM4
*-cache:0
description: L1 cache
physical id: 14
slot: L1 Cache
size: 384KiB
capacity: 384KiB
capabilities: synchronous internal write-back unified
configuration: level=1
*-cache:1
description: L2 cache
physical id: 15
slot: L2 Cache
size: 1536KiB
capacity: 1536KiB
capabilities: synchronous internal write-back unified
configuration: level=2
*-cache:2
description: L3 cache
physical id: 16
slot: L3 Cache
size: 12MiB
capacity: 12MiB
capabilities: synchronous internal write-back unified
configuration: level=3
*-memory UNCLAIMED
description: RAM memory
product: Cannon Lake PCH Shared SRAM
vendor: Intel Corporation
physical id: 14.2
bus info: pci@0000:00:14.2
version: 10
width: 64 bits
clock: 33MHz (30.3ns)
capabilities: pm cap_list
configuration: latency=0
resources: iomemory:400-3ff iomemory:400-3ff memory:4000114000-4000115fff memory:4000119000-4000119fff
答案1
我联系了戴尔，他们给我寄了一块带 CPU 的替换主板。我以为他们会花很长时间才能寄给我所需的东西，但他们的速度非常快（也就是说第二天就发货了）。我想如果你从业务部门购买，你会得到更好的服务。
我安装了替换件，问题已经解决。我猜主板或 CPU 肯定是问题所在。我仍然遇到网卡重启的其他问题，但我相信这个问题无关紧要，与我们的公司网络有关。
另外，特别感谢@heynnema 帮助我完成调试步骤。它帮助我缩小了问题范围。