Just experienced a system freeze (no touchpad, no keyboard, screen looked normal), Alt/SysRq/REISUB didn't work, had to press the start button.
In var/log/kern.log I find "ACPI: EC: GPE storm detected, transactions will use polling mode" around the time of the freeze. The next entry is the first action of the next reboot.
Could this be related, and what could it mean?
I'm also experiencing frequent program crashes, always Segfaults and/or SIGSEVs mentioned in the crash report, the programs this is happening too seem random (mplayer, clementine, gnome subtitles, openshot, ...), but these never damage the system, I can always continue my work. All this makes me a bit worried about the stability of my system...
Ubuntu 12.04, 64-bit, 3.2.0-25-generic Kernel, Intel® Core™ i5-2430M CPU @ 2.40GHz × 4