Looks like 2.6.24.1.fc9 is taking an ACPI related oops: http://www.kerneloops.org/search.php?search=acpi_os_release_object *acpi_os_release_object acpi_ut_update_ref_count acpi_ut_update_object_reference kmem_cache_free acpi_ds_method_data_delete_all acpi_ds_terminate_control_method acpi_ps_parse_aml acpi_ps_execute_method acpi_ns_evaluate acpi_evaluate_object acpi_evaluate_integer acpi_thermal_check acpi_os_wait_semaphore acpi_thermal_check acpi_os_execute_deferred acpi_os_execute_deferred run_workqueue worker_thread autoremove_wake_function worker_thread kthread trace_hardirqs_on_thunk child_rip restore_args kthreadd kthread child_rip - To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html