I've had it (35% acpid) when heavily loaded, but just now I got it by accidentally clicking the undock button on my docking station.
dmesg-c says: [91067.276000] ACPI Exception (pci_bind-0299): AE_NOT_FOUND, Unable to get data from device DCKS [20060707] [91067.276000] ACPI: undocking Needless to say I'm still docked, my monitor, keyboard and mouse all still work (I'm using a Dell precision M70) -- runaway kacpi_notify https://bugs.launchpad.net/bugs/75174 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs