suppress kernel/VM memory debugging information

kernel/arch/i386/memory.c

@@ -889,8 +889,10 @@ int vmcheck;			/* if nonzero, can return VMSUSPEND */
 		vmassert(caller->p_vmrequest.vmresult != VMSUSPEND);
 		RTS_LOCK_UNSET(caller, RTS_VMREQUEST);
 		if(caller->p_vmrequest.vmresult != OK) {
+#if DEBUG_VMASSERT
 			printf("virtual_copy: returning VM error %d\n",
 				caller->p_vmrequest.vmresult);
+#endif
 	  		NOREC_RETURN(virtualcopy, caller->p_vmrequest.vmresult);
 		}
 	}

kernel/system/do_vmctl.c

@@ -83,12 +83,11 @@ register message *m_ptr;	/* pointer to request message */
 		target = proc_addr(proc_nr);
 		p->p_vmrequest.vmresult = m_ptr->SVMCTL_VALUE;
 		vmassert(p->p_vmrequest.vmresult != VMSUSPEND);
+#if DEBUG_VMASSERT
 		if(p->p_vmrequest.vmresult != OK)
 			kprintf("SYSTEM: VM replied %d to mem request\n",
 				p->p_vmrequest.vmresult);
 
-
-#if 0
 		printf("memreq reply: vm request sent by: %s / %d about %d; 0x%lx-0x%lx, wr %d, stack: %s ",
 			p->p_name, p->p_endpoint, p->p_vmrequest.who,
 			p->p_vmrequest.start,

servers/vm/pagefaults.c

@@ -169,11 +169,15 @@ int handle_memory(struct vmproc *vmp, vir_bytes mem, vir_bytes len, int wrflag)
 	while(len > 0) {
 		int r;
 		if(!(region = map_lookup(vmp, mem))) {
+#if VERBOSE
 			map_printmap(vmp);
 			printf("VM: do_memory: memory doesn't exist\n");
+#endif
 			r = EFAULT;
 		} else if(!(region->flags & VR_WRITABLE) && wrflag) {
+#if VERBOSE
 			printf("VM: do_memory: write to unwritable map\n");
+#endif
 			r = EFAULT;
 		} else {
 			vir_bytes offset, sublen;
@@ -193,9 +197,11 @@ int handle_memory(struct vmproc *vmp, vir_bytes mem, vir_bytes len, int wrflag)
 		}
 	
 		if(r != OK) {
+#if VERBOSE
 			printf("VM: memory range 0x%lx-0x%lx not available in %d\n",
 				arch_map2vir(vmp, mem), arch_map2vir(vmp, mem+len),
 				vmp->vm_endpoint);
+#endif
 			return r;
 		}
 	}

servers/vm/vm.h

@@ -18,6 +18,9 @@
 #define SANITYCHECKS	0
 #define VMSTATS		0
 
+/* How noisy are we supposed to be? */
+#define VERBOSE		0
+
 /* Minimum stack region size - 64MB. */
 #define MINSTACKREGION	(64*1024*1024)