>Number:         24542
>Category:       kern
>Synopsis:       uhci panics with QUEUEDEBUG
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    kern-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Tue Feb 24 05:32:00 UTC 2004
>Closed-Date:
>Last-Modified:
>Originator:     darkstar@city-net.com
>Release:        NetBSD 1.6ZK
>Organization:
>Environment:
System: NetBSD jove.city-net.com 1.6ZK NetBSD 1.6ZK (JOVE) #2: Tue Feb 24 09:57:53 UTC 2004 root@jove.city-net.com:/usr/iobj/sys/arch/i386/compile/JOVE i386
Architecture: i386
Machine: i386
>Description:

  A system with a uhci device and QUEUEDEBUG panics on boot.

>How-To-Repeat:
>Fix:

Index: sys/dev/usb/uhci.c
===================================================================
RCS file: /cvsroot/src/sys/dev/usb/uhci.c,v
retrieving revision 1.177
diff -u -r1.177 uhci.c
--- sys/dev/usb/uhci.c	29 Dec 2003 08:17:10 -0000	1.177
+++ sys/dev/usb/uhci.c	24 Feb 2004 05:06:43 -0000
@@ -1258,7 +1258,7 @@
 uhci_softintr(void *v)
 {
 	uhci_softc_t *sc = v;
-	uhci_intr_info_t *ii;
+	uhci_intr_info_t *ii, *nextii;

 	DPRINTFN(10,("%s: uhci_softintr (%d)\n", USBDEVNAME(sc->sc_bus.bdev),
 		     sc->sc_bus.intr_context));
@@ -1276,8 +1276,10 @@
 	 * We scan all interrupt descriptors to see if any have
 	 * completed.
 	 */
-	for (ii = LIST_FIRST(&sc->sc_intrhead); ii; ii = LIST_NEXT(ii, list))
+	for (ii = LIST_FIRST(&sc->sc_intrhead); ii; ii = nextii) {
+		nextii = LIST_NEXT(ii, list);
 		uhci_check_intr(sc, ii);
+	}

 #ifdef USB_USE_SOFTINTR
 	if (sc->sc_softwake) {
>Release-Note:
>Audit-Trail:
>Unformatted: