Index: procfs_dbregs.c
===================================================================
RCS file: /home/ncvs/src/sys/fs/procfs/procfs_dbregs.c,v
retrieving revision 1.21
diff -u -r1.21 procfs_dbregs.c
--- procfs_dbregs.c	29 Jun 2002 17:26:15 -0000	1.21
+++ procfs_dbregs.c	4 May 2003 16:45:28 -0000
@@ -87,8 +87,11 @@
 	else
 		/* XXXKSE: */
 		error = proc_read_dbregs(FIRST_THREAD_IN_PROC(p), &r);
-	if (error == 0)
+	if (error == 0) {
+		PROC_UNLOCK(p);
 		error = uiomove(kv, kl, uio);
+		PROC_LOCK(p);
+	}
 	if (error == 0 && uio->uio_rw == UIO_WRITE) {
 		if (!P_SHOULDSTOP(p)) /* XXXKSE should be P_TRACED? */
 			error = EBUSY;
Index: procfs_fpregs.c
===================================================================
RCS file: /home/ncvs/src/sys/fs/procfs/procfs_fpregs.c,v
retrieving revision 1.27
diff -u -r1.27 procfs_fpregs.c
--- procfs_fpregs.c	29 Jun 2002 17:26:15 -0000	1.27
+++ procfs_fpregs.c	4 May 2003 16:44:43 -0000
@@ -81,8 +81,11 @@
 	else
 		/* XXXKSE: */
 		error = proc_read_fpregs(FIRST_THREAD_IN_PROC(p), &r);
-	if (error == 0)
+	if (error == 0) {
+		PROC_UNLOCK(p);
 		error = uiomove(kv, kl, uio);
+		PROC_LOCK(p);
+	}
 	if (error == 0 && uio->uio_rw == UIO_WRITE) {
 		if (!P_SHOULDSTOP(p))
 			error = EBUSY;
Index: procfs_ioctl.c
===================================================================
RCS file: /home/ncvs/src/sys/fs/procfs/procfs_ioctl.c,v
retrieving revision 1.9
diff -u -r1.9 procfs_ioctl.c
--- procfs_ioctl.c	17 Apr 2003 22:13:46 -0000	1.9
+++ procfs_ioctl.c	4 May 2003 16:46:16 -0000
@@ -67,6 +67,9 @@
 		*(unsigned int *)data = p->p_pfsflags;
 		break;
 	case PIOCWAIT:
+		/*
+		 * Should PHOLD() and relase proc lock here?
+		 */
 		while (p->p_step == 0) {
 			/* sleep until p stops */
 			error = msleep(&p->p_stype, &p->p_mtx,
Index: procfs_regs.c
===================================================================
RCS file: /home/ncvs/src/sys/fs/procfs/procfs_regs.c,v
retrieving revision 1.26
diff -u -r1.26 procfs_regs.c
--- procfs_regs.c	29 Jun 2002 17:26:15 -0000	1.26
+++ procfs_regs.c	4 May 2003 16:44:57 -0000
@@ -76,15 +76,16 @@
 		kl = uio->uio_resid;
 
 	_PHOLD(p);
-	PROC_UNLOCK(p);
 	if (kl < 0)
 		error = EINVAL;
 	else
 		/* XXXKSE: */
 		error = proc_read_regs(FIRST_THREAD_IN_PROC(p), &r);
-	if (error == 0)
+	if (error == 0) {
+		PROC_UNLOCK(p);
 		error = uiomove(kv, kl, uio);
-	PROC_LOCK(p);
+		PROC_LOCK(p);
+	}
 	if (error == 0 && uio->uio_rw == UIO_WRITE) {
 		if (!P_SHOULDSTOP(p))
 			error = EBUSY;