Bind 9.7.0-P2 Bus Error - Solaris 9

[JINMEI Tatuya / 神明達哉]

At Mon, 14 Jun 2010 09:06:50 -0500 (CDT),
b19141 at anl.gov wrote:

> This morning on a Solaris 9 system, I issued these comands:

I believe I found the cause of the bug.  Please try the patch copied
below.

---
JINMEI, Tatuya
Internet Systems Consortium, Inc.

Index: dighost.c
===================================================================
RCS file: /proj/cvs/prod/bind9/bin/dig/dighost.c,v
retrieving revision 1.330
diff -u -r1.330 dighost.c
--- dighost.c	18 May 2010 02:38:10 -0000	1.330
+++ dighost.c	15 Jun 2010 00:49:24 -0000
@@ -2401,6 +2401,15 @@
 		      isc_result_totext(ISC_R_NOMEMORY));
 	}
 	isc_task_send(global_task, &event);
+
+	/*
+	 * The timer may have expired if, for example, get_address() takes
+	 * long time and the timer was running on a different thread.
+	 * We need to cancel the possible timeout event not to confuse
+	 * ourselves due to the duplicate events.
+	 */
+	if (l->timer != NULL)
+		isc_timer_detach(&l->timer);
 }
 
 
@@ -2424,7 +2433,7 @@
 	query->waiting_connect = ISC_TRUE;
 	query->lookup->current_query = query;
 	result = get_address(query->servname, port, &query->sockaddr);
-	if (result == ISC_R_NOTFOUND) {
+	if (result != ISC_R_SUCCESS) {
 		/*
 		 * This servname doesn't have an address.  Try the next server
 		 * by triggering an immediate 'timeout' (we lie, but the effect
@@ -2506,7 +2515,7 @@
 		/* XXX Check the sense of this, need assertion? */
 		query->waiting_connect = ISC_FALSE;
 		result = get_address(query->servname, port, &query->sockaddr);
-		if (result == ISC_R_NOTFOUND) {
+		if (result != ISC_R_SUCCESS) {
 			/* This servname doesn't have an address. */
 			force_timeout(l, query);
 			return;