lsof was compiled for an older kernel and doesn't work with
the one distributed with 5.2:
lsof: WARNING: compiled for Linux release 2.0.34; this is
lsof: kernel symbol address mismatch: get_options
get_kernel_syms() value is 0x108d18; /boot/System.map
value is 0x108ce0.
There were 416 additional mismatches.
/boot/System.map and the booted kernel may not be a
The command still listed open files as it was supposed to but it did
generate the reported warning of:
lsof: WARNING: compiled for Linux release 2.0.34; this is 2.0.36.
This has been assigned to a developer.
Fixed in dist-5.2.1/lsof-4.39-4.
However, lsof depends on the kernel version so intimately
that you are probably better off just picking up a lsof
src rpm and typing "rpm --rebuild lsof*.src.rpm" to build
your own version.