I just had a kernel panic while working in MS Word launched in VirtualBox 4.2.10 on Ubuntu 13.04. No idea what happened. It happened on my new Samsung NP530U3C machine with i5-3317U CPU and Intel HD4000 graphics. I have never experienced anything like this before on my previous i3-2310M/Intel HD3000 machine while doing the same tasks despite the fact that I ran 3.9 and some early 3.10-rc kernels on that machine too. I am running a mainline 3.10-rc7 kernel from http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.10-rc7-saucy/ since I want to have the latest Samsung UEFI anti-bricking code to avoid bricking my laptop. The DRI category I have assigned might be incorrect as I have no clue what happened and just saw some messages related to DRI system. I am attaching some screenshots of the panic messages. Pardon for the bad picture quality.
Created attachment 105981 [details] Another image of the panic message
Created attachment 105991 [details] Image of the panic message
Right, it is not a DRI panic - just the DRI panic handler is printing the message. I believe vbox loads a binary kernel module and taints the kernel, so unless you can reproduce the issue without vbox loaded, you want to ask the vbox developers first.
Yeah, until this is confirmed to be reproducible without vbox it's very very likely not our bug. drm/i915 is just shot as the messenger in the panic path.
Okay, thank you. I'll see what happens in the future.