Variables starting with `p' in kern

• __P kern/dead_vnops.c:52
• pageproc kern/init_main.c:76
• panicstr kern/subr_prf.c:85
• pgrp0 kern/init_main.c:69
• proc0 kern/init_main.c:70
• proc0paddr kern/init_main.c:79
• profiling kern/subr_mcount.c:45
• pt_tty kern/tty_pty.c:65