Comment # 1 on bug 1222342 from Michael Matz

In the cases that stuff works unexpectedly, what does

(gdb) show history filename

say, and does the file in question there contain the expected things or not?

Do note that the default filename for saving history is ".gdb_history" in the
_current directory_.  So, when you do your gdb session in various directories
and don't overwrite the history filename you will be given the history from
whatever
happened to be the history the last time you were in that very directory.
(You may want to do a global search for that filename and see if you indeed
have
various random incarnations of it)

(Also, assigning to gdb maintainer).