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Bug 1296694

Summary: 1.2.11.15-68.el6_7 ns-slapd crash in ipa context - c_mutex lock memory corruption and self locks
Product: Red Hat Enterprise Linux 6 Reporter: Marc Sauton <msauton>
Component: 389-ds-baseAssignee: Noriko Hosoi <nhosoi>
Status: CLOSED ERRATA QA Contact: Viktor Ashirov <vashirov>
Severity: high Docs Contact: Petr Bokoc <pbokoc>
Priority: urgent    
Version: 6.7CC: gparente, jgalipea, msauton, nkinder, pbokoc, rmeggins, tradej
Target Milestone: rcKeywords: ZStream
Target Release: ---   
Hardware: x86_64   
OS: Linux   
Whiteboard:
Fixed In Version: 389-ds-base-1.2.11.15-72.el6 Doc Type: Bug Fix
Doc Text:
Fixed a deadlock in asynchronous simple paged results requests A previous fix to deadlock in the asynchronous simple paged results requests caused another self deadlock due to a regression. To address this problem, a simple `PR_Lock` on a connection object has been replaced with a re-entrant `PR_Monitor`. As a result, the deadlock no longer occurs.
Story Points: ---
Clone Of:
: 1298095 (view as bug list) Environment:
Last Closed: 2016-05-10 19:22:41 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:    
Bug Blocks: 1298095    
Attachments:
Description Flags
full stack trace from 310-ccpp-2016-01-07-11-58-56-5760.2016-01-07-11.58.26-5760
none
full stack trace from 320-ccpp-2016-01-06-13-00-34-28822.2016-01-06-13.00.34-28822 none

Description Marc Sauton 2016-01-07 21:38:22 UTC
Created attachment 1112618 [details]
full stack trace from 310-ccpp-2016-01-07-11-58-56-5760.2016-01-07-11.58.26-5760

Description of problem:

stack trace review request, will need summary change.

apparent ns-slapd crash in RHEL 6.7 IPA context with
1.2.11.15-68.el6_7 

I attached 2 stack traces, nearly the same, the long file names have some context information:

sf.01534564.rhel67.389-ds-base-1.2.11.15-68.el6_7.ns-slapd.stacktrace.310-ccpp-2016-01-07-11-58-56-5760.2016-01-07-11.58.26-5760.txt 

sf.01534564.rhel67.389-ds-base-1.2.11.15-68.el6_7.ns-slapd.stacktrace.320-ccpp-2016-01-06-13-00-34-28822.txt 

there were some initial reports of ns-slapd "hang" in salesforce case number, but I seem to see crashes:

Core was generated by `/usr/sbin/ns-slapd -D /etc/dirsrv/slapd-BS-BR-BSCH -i /var/run/dirsrv/slapd-BS-'.
Program terminated with signal 11, Segmentation fault.
#0  __lll_lock_wait () at ../nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:136
136     2:      movl    %edx, %eax



Version-Release number of selected component (if applicable):
RHEL 6.7
389-ds-base-1.2.11.15-68.el6_7


How reproducible:
N/A

Steps to Reproduce:
1. N/A
2.
3.

Actual results:


Expected results:


Additional info:

Comment 1 Marc Sauton 2016-01-07 21:39:17 UTC
Created attachment 1112619 [details]
full stack trace from 320-ccpp-2016-01-06-13-00-34-28822.2016-01-06-13.00.34-28822

Comment 18 Viktor Ashirov 2016-02-22 17:35:07 UTC
Build tested: 389-ds-base-1.2.11.15-73.el6.x86_64

[1] Created 4000 users:
# ldclt -h localhost -p 389 -D "cn=Directory Manager" -w Secret123 -b "ou=people,dc=example,dc=com" -I 68 -e add,commoncounter -e "object=posix_users.ldif,rdn=uid:[A=INCRNNOLOOP(0;3999;5)]"

[2] Anonymous search with paged results:
# ldapsearch -x -h localhost -b "dc=example,dc=com" -E "pr=1000/noprompt" -l 10000 "(&(objectClass=posixAccount)(uid=*)(uidNumber=*)(gidNumber=*))"

<snip>

# search result
search: 5
result: 0 Success
control: 1.2.840.113556.1.4.319 false MAUCAQAEAA==
pagedresults: cookie=

# numResponses: 4004
# numEntries: 4000

Server didn't hang. Marking as VERIFIED.

Comment 20 errata-xmlrpc 2016-05-10 19:22:41 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, 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-2016-0737.html