RHEL Engineering is moving the tracking of its product development work on RHEL 6 through RHEL 9 to Red Hat Jira (issues.redhat.com). If you're a Red Hat customer, please continue to file support cases via the Red Hat customer portal. If you're not, please head to the "RHEL project" in Red Hat Jira and file new tickets here. Individual Bugzilla bugs in the statuses "NEW", "ASSIGNED", and "POST" are being migrated throughout September 2023. Bugs of Red Hat partners with an assigned Engineering Partner Manager (EPM) are migrated in late September as per pre-agreed dates. Bugs against components "kernel", "kernel-rt", and "kpatch" are only migrated if still in "NEW" or "ASSIGNED". If you cannot log in to RH Jira, please consult article #7032570. That failing, please send an e-mail to the RH Jira admins at rh-issues@redhat.com to troubleshoot your issue as a user management inquiry. The email creates a ServiceNow ticket with Red Hat. Individual Bugzilla bugs that are migrated will be moved to status "CLOSED", resolution "MIGRATED", and set with "MigratedToJIRA" in "Keywords". The link to the successor Jira issue will be found under "Links", have a little "two-footprint" icon next to it, and direct you to the "RHEL project" in Red Hat Jira (issue links are of type "https://issues.redhat.com/browse/RHEL-XXXX", where "X" is a digit). This same link will be available in a blue banner at the top of the page informing you that that bug has been migrated.
Bug 1866113 - Valgrind reports a memory leak in the Schema Compatibility plugin. [rhel-7.9.z]
Summary: Valgrind reports a memory leak in the Schema Compatibility plugin. [rhel-7.9.z]
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 7
Classification: Red Hat
Component: slapi-nis
Version: 7.8
Hardware: x86_64
OS: Linux
unspecified
medium
Target Milestone: rc
: ---
Assignee: Alexander Bokovoy
QA Contact: ipa-qe
URL:
Whiteboard:
Depends On:
Blocks: 1875348
TreeView+ depends on / blocked
 
Reported: 2020-08-04 21:55 UTC by Têko Mihinto
Modified: 2023-12-15 18:43 UTC (History)
8 users (show)

Fixed In Version: slapi-nis-0.56.5-3
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
: 1875348 (view as bug list)
Environment:
Last Closed: 2021-03-16 13:56:39 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHBA-2021:0861 0 None None None 2021-03-16 13:56:44 UTC

Description Têko Mihinto 2020-08-04 21:55:59 UTC 
Description of problem:
A customer is observing memory leak(s) in the LDAP server of the IPA stack.
A Valgrind report shows the following stack as the most important leak:

+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
==1804== 838,658,456 bytes in 13,526,838 blocks are definitely lost in loss record 2,607 of 2,607
==1804==    at 0x4C29F73: malloc (vg_replace_malloc.c:309)
==1804==    by 0x8297AF9: strdup (strdup.c:42)
==1804==    by 0x5094712: slapi_ch_strdup (ch_malloc.c:196)
==1804==    by 0x1B0FE676: ??? (in /usr/lib64/dirsrv/plugins/schemacompat-plugin.so)
==1804==    by 0x50E7337: plugin_call_func (plugin.c:2028)
==1804==    by 0x50E75F2: plugin_call_list (plugin.c:1972)
==1804==    by 0x50E75F2: plugin_call_plugins (plugin.c:442)
==1804==    by 0x50DA2E6: op_shared_search (opshared.c:559)
==1804==    by 0x135C0D: do_search (search.c:352)
==1804==    by 0x123989: connection_dispatch_operation (connection.c:651)
==1804==    by 0x123989: connection_threadmain (connection.c:1793)
==1804==    by 0x7339BFA: _pt_root (ptthread.c:201)
==1804==    by 0x7979EA4: start_thread (pthread_create.c:307)
==1804==    by 0x83098DC: clone (clone.S:111)
==1804==
==1804== LEAK SUMMARY:
==1804==    definitely lost: 853,769,929 bytes in 14,317,086 blocks
==1804==    indirectly lost: 277,511 bytes in 7,592 blocks
==1804==      possibly lost: 10,610 bytes in 122 blocks
==1804==    still reachable: 7,454,258 bytes in 40,394 blocks
==1804==                       of which reachable via heuristic:
==1804==                         stdstring          : 30 bytes in 1 blocks
==1804==         suppressed: 0 bytes in 0 blocks
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++


Version-Release number of selected component (if applicable):
$ cat /etc/redhat-release 
Red Hat Enterprise Linux Server release 7.8 (Maipo)
$
$ grep 389-ds-base installed-rpms 
389-ds-base-1.3.10.1-9.el7_8.x86_64                         Mon May 18 10:58:11 2020
389-ds-base-debuginfo-1.3.10.1-9.el7_8.x86_64               Thu Jun 11 08:32:56 2020
389-ds-base-libs-1.3.10.1-9.el7_8.x86_64                    Mon May 18 10:58:10 2020
389-ds-base-snmp-1.3.10.1-9.el7_8.x86_64                    Mon May 18 10:58:30 2020
$
$ grep slapi installed-rpms 
slapi-nis-0.56.0-13.el7.x86_64                              Tue Apr 21 19:17:54 2020
$

How reproducible:
Always in the customer environment.

Steps to Reproduce:
Customer was asked to run the LDAP server with Valgrind which reported the leaks.

Actual results:
Memory leaks forcing to restart the IPA servers every 3 or 4 weeks.

Expected results:
Controlled memory usage.

Additional info:
Comment 6 Alexander Bokovoy 2020-08-31 14:01:02 UTC 
PR: https://pagure.io/slapi-nis/pull-request/38
Comment 7 Alexander Bokovoy 2020-09-01 10:03:47 UTC 
Merged upstream.
Comment 24 Sudhir Menon 2021-02-09 07:55:27 UTC 
slapi-nis build on the test system: slapi-nis-0.56.5-3.el7_9.x86_64
Comment 28 errata-xmlrpc 2021-03-16 13:56:39 UTC 
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 (slapi-nis bug fix and enhancement update), 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://access.redhat.com/errata/RHBA-2021:0861
Note You need to log in before you can comment on or make changes to this bug.