This is RELENG_7, i386, uni-processor(!), SCHED_ULE: kernel: umass0: at uhub3 port 2 (addr 2) disconnected kernel: (da0:umass-sim0:0:0:0): loGEOM_LABEL: Label ufs/extbackup removed. kernel: st device kernel: (da0:umass-sim0:0:0:0): removing device entry kernel: umass0: detached So apparently not only SMP is affected. -- Andriy Gapon