Hello,

I'm running an Amiga kernel, supped last night, with DEBUG defined.  I
get a panic calling shmget() (and later shmctl(shmid, IPC_RMID, ...))
due to some DEBUG code in the routines vm_map_entry_create() and
vm_map_entry_dispose() in sys/vm/vm_map.c.

The routines panic because sysvshm_map isn't "special" but is marked
non-pageable.  The init code in sys/kern/sysv_shm.c explicitly
allocates the map non-pageable, so I offer this fix:

*** vm_map.c-orig	Mon May 23 03:35:12 1994
--- vm_map.c	Sun Jun 26 00:10:29 1994
***************
*** 283,291 ****
--- 283,297 ----
  	vm_map_entry_t	entry;
  #ifdef DEBUG
  	extern vm_map_t		kernel_map, kmem_map, mb_map, pager_map;
+ #ifdef SYSVSHM
+ 	extern vm_map_t		sysvshm_map;
+ #endif
  	boolean_t		isspecial;
  
  	isspecial = (map == kernel_map || map == kmem_map ||
+ #ifdef SYSVSHM
+ 		     map == sysvshm_map ||
+ #endif
  		     map == mb_map || map == pager_map);
  	if (isspecial && map->entries_pageable ||
  	    !isspecial && !map->entries_pageable)
***************
*** 316,324 ****
--- 322,336 ----
  {
  #ifdef DEBUG
  	extern vm_map_t		kernel_map, kmem_map, mb_map, pager_map;
+ #ifdef SYSVSHM
+ 	extern vm_map_t		sysvshm_map;
+ #endif
  	boolean_t		isspecial;
  
  	isspecial = (map == kernel_map || map == kmem_map ||
+ #ifdef SYSVSHM
+ 		     map == sysvshm_map ||
+ #endif
  		     map == mb_map || map == pager_map);
  	if (isspecial && map->entries_pageable ||
  	    !isspecial && !map->entries_pageable)

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