Test #1:

-CONFIG_BOOTX_TEXT

*** does not boot

Test #2 (in addition to test #1)

-CONFIG_ALTIVEC
-CONFIG_SYS_SUPPORT_APM_EMULATION
-CONFIG_BSD_PROCESS_ACCT
-CONFIG_RELAY
+CONFIG_SLAB
-CONFIG_SLUB(_DEBUG)

*** does not boot

Test #3 (in addition to test #1 and test #2):

-CONFIG_PTRACE
-CONFIG_UTRACE

*** does not boot

Test #4 (in addition to test #1, #2, #3):

-CONFIG_FSL_SOC
-CONFIG_PCIEPORTBUS
-CONFIG_PCIAER
-CONFIG_ADVANCED_OPTIONS
-CONFIG_DEBUG_FS
-CONFIG_HEADERS_CHECK
-CONFIG_DEBUG_SHIRQ
-CONFIG_TIMERSTATS
-CONFIG_DEBUG_HIGHMEM
-CONFIG_DEBUG_INFO
-CONFIG_DEBUG_LIST
-CONFIG_BOOT_DELAY
-CONFIG_DEBUG_STACKOVERFLOW
-CONFIG_PROFILING
-CONFIG_KPROBES

Boots! Yay!