How can I diagnose a total system lockup?

When I run chromium and a game (Dota 2 or CS:GO) simultaneously, my system sometimes completely freezes, and I am unable to do anything including switch to a different tty. I can usually run these at the same time, and my memory usage is about 55%. However, sometimes, the lockup occurs and the disk led goes crazy. How would I go about diagnosing this problem? Which logs should I check? Thanks!

Have a look at https://bbs.archlinux.org/viewtopic.php?id=190669 and https://bbs.archlinux.org/viewtopic.php?id=190247.
You could run "dstat -cdnmgs --top-io --top-bio --top-cpu --top-mem" and try to catch its output before the freeze.
Last edited by lucke (2015-02-22 21:12:33)

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