Bug 93061

Summary: General protection fault and system freeze while web browsing
Product: Drivers Reporter: Petteri Markkula (markkulapetteri)
Component: Video(DRI - Intel)Assignee: intel-gfx-bugs (intel-gfx-bugs)
Status: RESOLVED MOVED    
Severity: high CC: intel-gfx-bugs
Priority: P1    
Hardware: x86-64   
OS: Linux   
URL: https://bugs.freedesktop.org/show_bug.cgi?id=89085
Kernel Version: 3.19.0 Subsystem:
Regression: No Bisected commit-id:
Attachments: /var/log/kern.log containing the trace.
dmesg output just after the freeze

Description Petteri Markkula 2015-02-10 17:55:26 UTC 
Created attachment 166401 [details]
/var/log/kern.log containing the trace.

Acer chromebook c720 running Ubuntu 14.04 with mainline kernel from http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.19-vivid/.

Upgraded to 3.19.0 this morning and after about couple hours of normal (text editing, web browsing) usage, system froze when I clicked a link in firefox. Laptop did not react to keyboard or mouse anymore. Didn't try to take remote connection from another computer. After poweroff/on everything was ok and I didn't experience more freezes during the day. Checked /var/log/kern.log and found the trace.

Didn't experience freezes with 3.18.[5,6].
Comment 1 Petteri Markkula 2015-02-11 08:36:33 UTC 
This just happened again. Browsing with firefox with seven tabs open. I was able to ssh into laptop with phone. dmesg attached. "sudo service lightdm restart" said that it stopped the service, but after that nothing. Had to stop it with ctrl-c. After that "sudo reboot" brought the laptop back again.
Comment 2 Petteri Markkula 2015-02-11 08:38:38 UTC 
Created attachment 166441 [details]
dmesg output just after the freeze