Training some MQC

Hm.. why do i always get Tracebacks when i apply "service-policy" ? ;) Who has the answer ?

Rack1R5(config-if)#service-policy output 1033
Rack1R5(config-if)#
*Jul 27 08:30:52.800: %SYS-2-INTSCHED: 'may_suspend' at level 4 -Process= "Exec", ipl= 4, pid= 88,  -Traceback= 0x816F117z 0xA728AD3z 0x9B4482Az 0x9B3A931z 0xA06F7EEz 0xA07813Bz 0xA076320z 0xA070C64z 0xA05BE2Cz 0xA069090z 0xA17F14Az 0xA0BED8Cz 0xA0B6B58z 0xA0B6920z 0xA0B90BEz 0xA1CC6A3z
*Jul 27 08:30:52.800: %SYS-2-INTSCHED: 'may_suspend' at level 4 -Process= "Exec", ipl= 4, pid= 88,  -Traceback= 0x816F117z 0xA728AD3z 0x9B4482Az 0x9B3A931z 0xA06F803z 0xA07813Bz 0xA076320z 0xA070C64z 0xA05BE2Cz 0xA069090z 0xA17F14Az 0xA0BED8Cz 0xA0B6B58z 0xA0B6920z 0xA0B90BEz 0xA1CC6A3z
Rack1R5(config-if)#