Package: multipath-tools-dbg

"multipath-tools-dbg" package binaries on Debian:

/usr/lib/debug/sbin/kpartx /usr/lib/debug/sbin/mpathpersist /usr/lib/debug/sbin/multipathd /usr/lib/debug/sbin/multipath

You may install this package on Debian with apt-get install multipath-tools-dbg