Same here, although my panics look different from yours. In both cases I had aProbably you have not enabled kmemcheck in the kernel configuration?
lot of hardware interrupts on the stack trace but no kmemcheck. I only
remembered to take a photo with my mobile phone the second time. The stack
trace contains handle_*irq*, tg3, ata_bmdma, __ata_sff, i915, drm_vblank_put,
intel_thermal, try_preempt, resched*, drm_vblank_put, do_invalid_op, oops_end,
do_bounds, panic. The EIP is drm_vblank_put+0x13/0x50.
Could this be an i915 issue with 2.6.39.1? At home I have two other machines
on i915 but with different chipsets that run fine with the same kernel.
In my last messageAs crash occurs only with HT on and doesn't happen on another machineI do not observe the issue with the regular non-SMP 2.6.38.7 distro kernel, so
with 2 cores, it seems that maybe the problem is associated with
incorrect allocation of resources or locking for HT enabled CPU...
it might be HT related. Truth be told I need to investigate further since my
2.6.39.1 kernel is patched. In the meantime, if someone recognizes the issue
please come forward.