PC hangs for no apparent reason
 

I have been experiencing a problem where my pc hangs up. It will hang up for no apparent reason. The only way that I have found recover is to power it off and back on. I had left it up while I went to dinner. When I returned the screen was blank and would not recover. Today I was on and I moved the mouse too fast and the screen popped with all of my desktops displayed. The mouse would move but I could not select any window. I am able to ssh into it from my laptop. Top and IOtop both respond in the ssh session. I even killed the user session with pkill but the pc was still unresponsive. I have check /var/log/messages for anything strange. I did not see anything apparently wrong. There are a bunch of messages like

AER: Corrected error received: id=0018
PCIe Bus Error: severity=Corrected, type=Data Link Layer, id=0018(Receiver ID)
device [8086:6f08] error status/mask=00000040/00002000
[ 6] Bad TLP

that happen arounf the time of the hang. I have searched for these errors and all that I have found have indicated that this is not a problem.

Here is a link to part of the messages file from before the hang till after the reboot.

https://drive.google.com/open?id=1yu...j-ijc6Exa6N7w0

I am running Fedora 26 64 bit with the KDE desktop. I will gladly supply any info that may help figure out what is happening.

Here is a link to the lshw output.


Thank you in advance.

I had a similar problem with my desktop computer.
PCIe error.

The mainboard had to be repaired by the manufacturer.

OK so it wasn't a PC per say, it was a Sun Microsystem's Ultra 5 workstation. The capacitors on the motherboard showed signs of bulging at the ends in systems a few years old. The workstations would behave erratically, freeze up, crash, etc. Replacing the capacitors cured the problem (though it was easier just to replace the main board!

You haven't supplied any details of the faulty pc; age, manufacturer, model no, etc, etc, so it's difficult to gauge.

Anyway... My :twocents:

Play Bonny!

:hattip:

Yes, it sounds like it could be a hardware problem. When the system freezes do the caps lock and num lock lights still work? Fedora is pretty buggy in tyhe first place, although F26 should be getting better. Try booting a live distro from a USB flash drive and see if it still happens. If it doesn't, then it's a software problem.