Bug 1142152
| Summary: | bind hangs after reload/GSSAPI Error: The referenced context has expired (Success) | ||||||
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| Product: | Red Hat Enterprise Linux 6 | Reporter: | Arpit Tolani <atolani> | ||||
| Component: | bind | Assignee: | Tomáš Hozza <thozza> | ||||
| Status: | CLOSED ERRATA | QA Contact: | Tereza Cerna <tcerna> | ||||
| Severity: | medium | Docs Contact: | |||||
| Priority: | medium | ||||||
| Version: | 6.6 | CC: | dpal, emajorsi, psklenar, pspacek, qe-baseos-daemons, tcerna, thozza | ||||
| Target Milestone: | rc | Keywords: | Patch | ||||
| Target Release: | --- | ||||||
| Hardware: | Unspecified | ||||||
| OS: | Unspecified | ||||||
| Whiteboard: | |||||||
| Fixed In Version: | bind-9.8.2-0.32.rc1.el6 | Doc Type: | Bug Fix | ||||
| Doc Text: |
BIND incorrectly handled errors returned by dynamic databases (from dyndbAPI). Consequently, BIND could enter a deadlock situation on shutdown under certain circumstances. The dyndb API has been fixed not to cause a deadlock during BIND shutdown after the dynamic database returns an error, and BIND now shuts down normally in the described situation.
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Story Points: | --- | ||||
| Clone Of: | 1142150 | Environment: | |||||
| Last Closed: | 2015-07-22 05:50:11 UTC | Type: | Bug | ||||
| Regression: | --- | Mount Type: | --- | ||||
| Documentation: | --- | CRM: | |||||
| Verified Versions: | Category: | --- | |||||
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |||||
| Cloudforms Team: | --- | Target Upstream Version: | |||||
| Embargoed: | |||||||
| Bug Depends On: | 1142150, 1142176 | ||||||
| Bug Blocks: | 1153398, 1159820 | ||||||
| Attachments: |
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Description
Arpit Tolani
2014-09-16 09:12:48 UTC
It is too late for 6.6. Moving to 6.7. There is nothing private in this bug. Publicizing. patch added to Bug #1142150 reproducer added in Bug #1142150 comment #7 Created attachment 966145 [details]
SRPM with bind-dyndb-ldap plugin for testing of this bug
Steps to reproduce for QA: 1. install bind 2. build the attachment 966145 [details] for your architecture 3. install the bind-dyndb-ldap package built from attachment 966145 [details] 4. Add the following section to /etc/named.conf: dynamic-db "my_db_name" { library "ldap.so"; arg "uri ldap://ldap.example.com"; arg "base cn=dns, dc=example, dc=com"; arg "auth_method none"; }; 5. export KRB5_KTNAME=/etc/named.keytab 6. run 'named -u named -fg' as root 7. named will start 8. run 'rndc reload' from another console and watch the error on output: [root@localhost ~]# rndc reload rndc: 'reload' failed: out of memory 9. press CTRL+C in the terminal you've started named or run 'rndc halt' Actual result in 9.: Named will freeze and the only way to stop it is to kill -9 it. Expected result in 9. (and with attached patch): Named will exit just normally. ==================================
Verified in version:
bind-9.8.2-0.36.rc1.el6.x86_64
PASSED
==================================
=== 1. console ===
# named -u named -fg
...
04-Mar-2015 11:25:15.231 running
=== 2. console ===
# rndc reload
server reload successful
# rndc halt
#
=== 1. console ===
04-Mar-2015 11:27:05.015 exiting
# echo $?
0
Named exited normally.
======================================
Reproduced in version:
bind-9.8.2-0.30.rc1.el6_6.1.x86_64
FAIL
======================================
=== 1. console ===
# named -u named -fg
...
04-Mar-2015 11:14:31.432 running
=== 2. console ===
# rndc reload
rndc: 'reload' failed: out of memory
# rndc halt
#
=== 1. console ===
Named freezed.
Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory, and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://rhn.redhat.com/errata/RHBA-2015-1250.html |