Centos is crashing sudenly while I am working

[abhijit]

My Centos 7 PC is crashing regularly and unexpectedly and giving following message as in the attached image

[KernelOops]

I don't see any errors in that screen, those appear like boot messages.

Maybe X crashed and dropped you to the shell? is the system usable at this point or is it completely frozen?

[abhijit]

Yes, it is completely frozen.
It happens while I am using my gnome desktop.

[KernelOops]

You need to look at the journal logs, something is crashing, maybe the video card driver/module.

For example, the following command will show you all kernel logs from the PREVIOUS boot (the one that crashed):

Code: Select all

journalctl -k -b -1

or to see all logs and not just kernel, use:

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journalctl -b -1

maybe there is something there to give you a clue what is crashing.