Revert "fix vt"

This reverts commit e236e87afbb21c37430b47e999b3634f6ccc7481.
Revert "oom_kill: update to linux 3.4.48"

This reverts commit 424f4512cee9314647d0be99a4faa1b77afa1c2c.
Revert "stuff"

This reverts commit d294a46a5755ab295fb4d0906c8dbcf41f2146fb.
lib/vsprintf.c: improve standard conformance of sscanf()