Consider running the following command, for looking at the pagemap bits of a given memory page:
od -t x8 -N 8 -j 34359738368 /proc/PID/pagemap That file supports seeking, but od will unnecessarily read and discard 32GB worth of data instead of doing so. Looking at the skip function in od.c, it looks like this happens because the file has a bogus st_size of 0 (as is typical for files in /proc) despite usable_st_size returning true for it, which results in the calls to fseeko never even being tried.
