Frequent Question: Why Does My Ubuntu Keep Crashing?
Contents If You Are Running Ubuntu and Your System Randomly Crashes, You May Be Running out of Memory. Low Memory Could Be Caused by Opening More Applications...
If you are running Ubuntu and your system randomly crashes, you may be running out of memory. Low memory could be caused by opening more applications or data files than will fit in the memory you have installed. If that is the problem, do not open so much at one time or upgrade to more memory on your computer.
How do I find out why Ubuntu crashed?
If using a text console, you should see a trace dumped to the screen. If the system is sufficiently alive, it will also be logged to /var/log/kern. log and visible in the output from dmesg. This information shows where the crash occurred, and should be included in any problem reports.
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Why does Ubuntu hang?
When everything stops working, first try Ctrl + Alt + F1 to go to a terminal, where you can likely kill X or other problem processes. If even that doesn’t work, try using holding down Alt + SysReq while pressing (slowly, with a few seconds between each) R E I S U B .