Created attachment 712474 [details]
Description of problem:
When running guest in VirtulBox 4.2.10, kernel crashes on boot. See screenshot for backtrace.
Version-Release number of selected component (if applicable):
booting is possible only with "intel_pstate=disable"
Please try the patch attatched to bug
*** Bug 920289 has been marked as a duplicate of this bug. ***
can you try kernel-3.9.0-0.rc3.git0.4.fc19 (without the disable option)
So I posted in my dupe that this had stopped happening to me, but over the last day or two it (or something like it) has started happening again - if anything more frequently. It's happened three times since last night, twice this morning. I think that ties up with the new kernel Dave mentions, in fact...yeah, looks like I got rc3.git0.5.fc20 (I'm using rawhide-nodebug repo) installed yesterday morning, and would've rebooted into it later that day, then I started seeing freezes again. Twice it was just a freeze at desktop, no trace, but once I got a picture of the trace, will attach.
Created attachment 713458 [details]
photo of the trace with 3.9.0-0.rc3.git0.5.fc20.x86_64
So something very strange is going on here. I see pid_param_set() on the stack if the stack trace is accurate then something is diddling the debugfs files for the driver which you should do at your own peril :-)
Is there anyway to capture the beging of the stack trace?
Any thing special happening on the system prior to the freeze?
Huh. No idea what's going on, but it's exploding on me with regularity now. I booted back to rc3.git3 and it exploded in less than an hour. I can't get anything done like this, I'll have to disable pstate...
This probably affects some recent GNOME testing images:
I cannot run GNOME-3.7.92.iso at this point.
Ma: try "intel_pstate=disable" on the cmdline.
Knocking on wood, my original problem seems to be fixed:
# hostnamectl | egrep "Virt|Kernel"
Kernel: Linux 3.9.0-0.rc3.git0.4.fc19.x86_64
ok, sounds like Adam is seeing a different bug after all. Let's undupe this, and close this one out as it works for Tomasz.
Adam, I'll have a new debug build later today.