Attachment #168808 for bug #204426

Lines 423-428 fast_failed: Link Here

(-)vm/vm_fault.c (+2 lines)
423	* If the object is dead, we stop here	423	* If the object is dead, we stop here
424	*/	424	*/
425	if (fs.object->flags & OBJ_DEAD) {	425	if (fs.object->flags & OBJ_DEAD) {
		426	printf("%d vm_fault OBJ_DEAD %p\n", curproc->p_pid, fs.object);
		427	stack_print(&fs.object->dead_stack);
426	unlock_and_deallocate(&fs);	428	unlock_and_deallocate(&fs);
427	return (KERN_PROTECTION_FAILURE);	429	return (KERN_PROTECTION_FAILURE);
428	}	430	}

Lines 265-270 _vm_object_allocate(objtype_t type, vm_pindex_t si Link Here

(-)vm/vm_object.c (+1 lines)
265	LIST_INIT(&object->rvq);	265	LIST_INIT(&object->rvq);
266	#endif	266	#endif
267	umtx_shm_object_init(object);	267	umtx_shm_object_init(object);
		268	stack_zero(&object->dead_stack);
268	}	269	}
269		270
270	/*	271	/*

Lines 74-79 Link Here

(-)vm/vm_object.h (+4 lines)
74		74
75	#include <vm/_vm_radix.h>	75	#include <vm/_vm_radix.h>
76		76
		77	#include <sys/stack.h>
		78
77	/*	79	/*
78	* Types defined:	80	* Types defined:
79	*	81	*
Lines 175-180 struct vm_object { Link Here
175	struct ucred *cred;	177	struct ucred *cred;
176	vm_ooffset_t charge;	178	vm_ooffset_t charge;
177	void *umtx_data;	179	void *umtx_data;
		180	struct stack dead_stack;
178	};	181	};
179		182
180	/*	183	/*
Lines 257-262 static __inline void Link Here
257	vm_object_set_flag(vm_object_t object, u_short bits)	260	vm_object_set_flag(vm_object_t object, u_short bits)
258	{	261	{
259		262
		263	if ((bits & OBJ_DEAD) != 0) stack_save(&object->dead_stack);
260	object->flags \|= bits;	264	object->flags \|= bits;
261	}	265	}
262		266

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