Re: Bind 9.7.0-P2 Bus Error - Solaris 9
At Mon, 14 Jun 2010 09:06:50 -0500 (CDT), b19...@anl.gov wrote: This morning on a Solaris 9 system, I issued these comands: JINMEI Tatuya / jin...@isc.org replied: I believe I found the cause of the bug. Please try the patch copied below. I tested the patch on Solaris 9 and 10, and no core files were produced. I tested only this one command: dig cnnet.upr.edu +trace -- Barry S. Finkel Computing and Information Systems Division Argonne National Laboratory Phone:+1 (630) 252-7277 9700 South Cass Avenue Facsimile:+1 (630) 252-4601 Building 240, Room 5.B.8 Internet: bsfin...@anl.gov Argonne, IL 60439-4828 IBMMAIL: I1004994 ___ bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users
Re: Bind 9.7.0-P2 Bus Error - Solaris 9
From: b19...@anl.gov To: bind-users@lists.isc.org Subject: Re: Bind 9.7.0-P2 Bus Error - Solaris 9 Date: Mon, 14 Jun 2010 13:53:13 -0500 (CDT) b19141 This morning on a Solaris 9 system, I issued these comands: b19141 titania% dig cnnet.upr.edu b19141 ; DiG 9.7.0-P1 cnnet.upr.edu [...] b19141 Bus Error (core dumped) ebers...@isc.org (Paul Ebersman) replied: Tried to repro on ubuntu and mac os with this bind version. Unless I try to control-C out, I can't repro this. If left to run, dig just times out (all three NS are unreachable for that zone, at least from my machines). Did you try to abort the +trace before it timed out? I tried again a few minutes ago, and I got the same Bus Error (core dumped) I did not hit control-c. Well, I don't get a core-dump but I DO get connection timed out... metis% cd incoming/bind/bind-9.7*1 /home/ghicks/incoming/bind/bind-9.7.0-P1 metis% cd bin/dig /home/ghicks/incoming/bind/bind-9.7.0-P1/bin/dig metis% ./dig cnnet.upr.edu ; DiG 9.7.0-P1 cnnet.upr.edu ;; global options: +cmd ;; connection timed out; no servers could be reached metis% ./dig cnnet.upr.edu +trace ; DiG 9.7.0-P1 cnnet.upr.edu +trace ;; global options: +cmd . 283923 IN NS f.root-servers.net. . 283923 IN NS d.root-servers.net. . 283923 IN NS h.root-servers.net. . 283923 IN NS b.root-servers.net. . 283923 IN NS e.root-servers.net. . 283923 IN NS m.root-servers.net. . 283923 IN NS c.root-servers.net. . 283923 IN NS j.root-servers.net. . 283923 IN NS k.root-servers.net. . 283923 IN NS l.root-servers.net. . 283923 IN NS a.root-servers.net. . 283923 IN NS i.root-servers.net. . 283923 IN NS g.root-servers.net. ;; Received 336 bytes from 127.0.0.1#53(127.0.0.1) in 10 ms edu.172800 IN NS e.gtld-servers.net. edu.172800 IN NS a.gtld-servers.net. edu.172800 IN NS d.gtld-servers.net. edu.172800 IN NS f.gtld-servers.net. edu.172800 IN NS c.gtld-servers.net. edu.172800 IN NS l.gtld-servers.net. edu.172800 IN NS g.gtld-servers.net. ;; Received 299 bytes from 192.228.79.201#53(b.root-servers.net) in 27 ms upr.edu.172800 IN NS dns1.uprm.edu. upr.edu.172800 IN NS dns2.uprm.edu. upr.edu.172800 IN NS ns1.upr.edu. upr.edu.172800 IN NS upr1.upr.clu.edu. ;; Received 183 bytes from 192.35.51.30#53(f.gtld-servers.net) in 19 ms cnnet.upr.edu. 28800 IN NS NS1.cnnet.upr.edu. cnnet.upr.edu. 28800 IN NS GOLIATH.cnnet.upr.edu. cnnet.upr.edu. 28800 IN NS NS3.cnnet.upr.edu. ;; Received 137 bytes from 136.145.5.66#53(ns1.upr.edu) in 118 ms ;; connection timed out; no servers could be reached metis% - Gregory Hicks | Principal Systems Engineer | Direct: 408.569.7928 People sleep peaceably in their beds at night only because rough men stand ready to do violence on their behalf -- George Orwell The price of freedom is eternal vigilance. -- Thomas Jefferson The best we can hope for concerning the people at large is that they be properly armed. --Alexander Hamilton ___ bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users
Re: Bind 9.7.0-P2 Bus Error - Solaris 9
At Mon, 14 Jun 2010 09:06:50 -0500 (CDT), b19...@anl.gov wrote: Do I need to file an official bug report? Yes, please. --- JINMEI, Tatuya Internet Systems Consortium, Inc. ___ bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users
Re: Bind 9.7.0-P2 Bus Error - Solaris 9
At Mon, 14 Jun 2010 09:06:50 -0500 (CDT),
b19...@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 - 1.330
+++ dighost.c 15 Jun 2010 00:49:24 -
@@ -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;
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