With the recent change to kern/exec_elf32.c evbppc/powerpc can't run init:

kern/exec_elf32.c treats every program section with VM_PROT_WRITE as data.

/sbin/init is

Program Headers:
  Type           Offset   VirtAddr   PhysAddr   FileSiz MemSiz  Flg Align
  PHDR           0x000034 0x01800034 0x01800034 0x000c0 0x000c0 R E 0x4
  INTERP         0x000114 0x01800114 0x01800114 0x00013 0x00013 R   0x1
  LOAD           0x000000 0x01800000 0x01800000 0x0427c 0x0427c RWE 0x10000
  LOAD           0x00427c 0x0181427c 0x0181427c 0x00158 0x0066c RWE 0x10000
  DYNAMIC        0x0042e0 0x018142e0 0x018142e0 0x000c8 0x000c8 RW  0x4
  NOTE           0x000128 0x01800128 0x01800128 0x00018 0x00018 R   0x4

Both text and data are rwx and thus treated as data.
-- 
Juergen Hannken-Illjes - hannken@eis.cs.tu-bs.de - TU Braunschweig (Germany)