有一段时间，我遇到了一个问题，我的系统会自发且不可恢复地冻结。我目前使用的是 Kubuntu 19.10，但我尝试过的其他发行版也发生过类似的冻结。我想我已经找到了系统崩溃时写入的 /var/log/syslog 部分：
Apr 29 17:43:03 strangelove org.freedesktop.FileManager1[1150]: Gwenview can only apply color profile on RGB32 or ARGB32 images
Apr 29 17:48:51 strangelove systemd[1]: Starting Daily apt upgrade and clean activities...
Apr 29 17:49:14 strangelove systemd-resolved[653]: Server returned error NXDOMAIN, mitigating potential DNS violation DVE-2018-0001, retrying transaction with reduced feature level UDP.
Apr 29 17:50:10 strangelove kernel: [ 2843.988842] kvm: disabled by bios
Apr 29 17:50:10 strangelove kernel: [ 2844.022360] EDAC amd64: Node 0: DRAM ECC disabled.
Apr 29 17:50:10 strangelove kernel: [ 2844.022361] EDAC amd64: ECC disabled in the BIOS or no ECC capability, module will not load.
Apr 29 17:50:10 strangelove kernel: [ 2844.022361] Either enable ECC checking or force module loading by setting 'ecc_enable_override'.
Apr 29 17:50:10 strangelove kernel: [ 2844.022361] (Note that use of the override may cause unknown side effects.)
Apr 29 17:49:14 strangelove systemd-resolved[653]: Server returned error NXDOMAIN, mitigating potential DNS violation DVE-2018-0001, retrying transaction with reduced feature level UDP.
Apr 29 17:50:11 strangelove systemd[1]: systemd-modules-load.service: Succeeded.
Apr 29 17:50:11 strangelove systemd[1]: Stopped Load Kernel Modules.
Apr 29 17:50:11 strangelove systemd[1]: Stopping Load Kernel Modules...
Apr 29 17:50:11 strangelove systemd[1]: Starting Load Kernel Modules...
Apr 29 17:50:11 strangelove systemd[1]: Started Load Kernel Modules.
第一行与 Gwenview 有关，我之所以把它包括进去，是因为它似乎是与我当时实际正在做的事情有关的最后一条消息。下一行显示“每日 apt 升级和清理”任务正在激活，几秒钟后系统冻结。我的强制重启似乎开始于 17:50:11 左右。
有什么建议可以寻找或尝试吗？我以前从未尝试诊断过此类问题，因此我不确定程序是什么。