Man pages matching name probe::scsi.iodispatching in section 3stap:

probe::scsi.iodispatching.3stap.en	debian 10 / systemtap-doc
probe::scsi.iodispatching.3stap.en	debian 11 / systemtap-doc
probe::scsi.iodispatching.3stap.en	debian 12 / systemtap-doc