diff -NurpP --minimal linux-2.6.11.6-vs1.9.5.9/kernel/signal.c linux-2.6.11.6-vs1.9.5.10/kernel/signal.c
--- linux-2.6.11.6-vs1.9.5.9/kernel/signal.c	2005-04-04 05:46:05 +0200
+++ linux-2.6.11.6-vs1.9.5.10/kernel/signal.c	2005-04-04 23:48:30 +0200
@@ -1892,6 +1892,11 @@ relock:
 		if (current->pid == 1)
 			continue;
 
+		/* virtual init is protected against user signals */
+		if ((info->si_code == SI_USER) &&
+			vx_current_initpid(current->pid))
+			continue;
+
 		if (sig_kernel_stop(signr)) {
 			/*
 			 * The default action is to stop all threads in
diff -NurpP --minimal linux-2.6.11.6-vs1.9.5.9/kernel/vserver/signal.c linux-2.6.11.6-vs1.9.5.10/kernel/vserver/signal.c
--- linux-2.6.11.6-vs1.9.5.9/kernel/vserver/signal.c	2005-04-01 01:31:57 +0200
+++ linux-2.6.11.6-vs1.9.5.10/kernel/vserver/signal.c	2005-04-04 23:46:29 +0200
@@ -63,8 +63,10 @@ int vc_ctx_kill(uint32_t id, void __user
 		break;
 
 	case 1:
-		if (vxi->vx_initpid)
+		if (vxi->vx_initpid) {
 			vc_data.pid = vxi->vx_initpid;
+			info.si_code = SI_KERNEL;
+		}
 		/* fallthrough */
 	default:
 		p = find_task_by_real_pid(vc_data.pid);