I know Linux rarely freezes, but how can I know if it has?
It was not frozen, just not responsive, and started responding again after a while, it was chrome using too much memory. The question remains though.
I have 8gb of ram, of which two are allocated to qemu, installing kali linux. The freeze happened when it was writing the system down to disk. I also had chrome opened with a BUNCH of tabs. Not even the clock is ticking. Also, since I have an HDD I was using cfq as the disk I/O manager. And I use amd's proprietary driver.
In those cases (actually frozen system), should I wait for my system to resume, or use one of the methods described in this link, that one of the answers here provided?