All of my applications are randomly crashing in Ubuntu 11.10. It’s not any specific application – they’re all doing it, and it is happening at random. What could be the cause?
We have been using Ubuntu Liniux on a number of machines, both as servers and as workstations, running 24/7 without reboot or switch off. And there had never been a crash of the system or of any application. And this is still the case with versions 10 and below.
But, after upgrading one of the workstations to version 12 we started experiencing systems and applications crashes - a few a day.
Rolling back your kernel isn't the answer. Sheesh.
You need to test your RAM. Find your boot CD, boot from it, and when you are presented with the purple-esce screen with the keyboard displayed at the bottom, press ESC. DON'T HESITATE or the process will move on and you'll have to reboot to do it again.
When you do this you'll be presented with a big fly out menu providing you with the choice of Language. The default is English. Once you select that then use your keyboard to scroll down to the memory test option.
Select it and let it run for half a day. Let it run that long unless you encounter errors immediately. Once any error is detected you need not continue testing. Locate the bad stick and swap it with a known good one.
I've run Linux for years on a huge number of hardware configurations. Linux does not normally crash. If your's is crashing there's a reason and that typically is due to something outside of Linux. There are no viruses to speak of that will affect you. Examining log files is all well and good IF you know which log files to look at and where to find them.
Well rolling back kernel solved the problem.
Anyways, thanks for help.
Check your log files to see what is going on. Since it is not application specific, you should probably check the kernel and system logs first. The system log will have the most information about most things happening on the system and will also be the biggest and take the longest to sort through and it may only end up pointing you toward another log file that may give you more information. Here's an overview of what types of things you can find in the various log files under /var/log:
roll back kernel
Thanks, it worked for me.
Glad that worked for you, thanks for your reply.