id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc	os	architecture	failure	difficulty	testcase	blockedby	blocking	related
4300	:show packages does not list all loaded packages	claus	igloo	"GHCi's `:show packages` seems to have bit-rotted, no longer listing all loaded packages:
{{{
$ printf ""Data.Map.fromList [(1,2)]\n:show packages"" | ghc.exe --interactive  -ignore-dot-ghci
GHCi, version 6.12.3: http://www.haskell.org/ghc/  :? for help
Loading package ghc-prim ... linking ... done.
Loading package integer-gmp ... linking ... done.
Loading package base ... linking ... done.
Loading package ffi-1.0 ... linking ... done.
Prelude> Loading package array-0.3.0.1 ... linking ... done.
Loading package containers-0.3.0.0 ... linking ... done.
fromList [(1,2)]
Prelude> active package flags: none
packages currently loaded:
  base
  ffi-1.0
  ghc-prim
  integer-gmp
  rts
Prelude> Leaving GHCi.
}}}
Note that `containers` and `array` are loaded when the call to `Data.Map.fromList` is made, but the packages are not listed in the output of `:show packages`.

If it helps, `:show linker` does list the extra packages:
{{{
$ printf ""Data.Map.fromList [(1,2)]\n:show linker"" | ghc.exe --interactive  -ignore-dot-ghci
GHCi, version 6.12.3: http://www.haskell.org/ghc/  :? for help
Loading package ghc-prim ... linking ... done.
Loading package integer-gmp ... linking ... done.
Loading package base ... linking ... done.
Loading package ffi-1.0 ... linking ... done.
Prelude> Loading package array-0.3.0.1 ... linking ... done.
Loading package containers-0.3.0.0 ... linking ... done.
fromList [(1,2)]
Prelude> ----- Linker state -----
Pkgs: [containers-0.3.0.0, array-0.3.0.1, ffi-1.0, base,
       integer-gmp, ghc-prim, rts]
Objs: []
BCOs: []

Prelude> Leaving GHCi.
}}}"	bug	closed	normal	7.0.1	GHCi	6.12.3	fixed			Unknown/Multiple	Unknown/Multiple	None/Unknown