Same here on X201s (BIOS 1.12, EC 1.07, vanilla 2.6.34-rc4), but no stacktrace as using acpi_sleep=sci_force_enable from #532374 Reloading all usb modules (esp usbcore and ehci_hcd) solves the problem till next suspend.
Same here on X201s (BIOS 1.12, EC 1.07, vanilla 2.6.34-rc4), but no stacktrace as using acpi_sleep= sci_force_ enable from #532374
Reloading all usb modules (esp usbcore and ehci_hcd) solves the problem till next suspend.