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1418 discussions

Re: commit: ldap/servers/slapd config.c
by Gavin Henry 08 May '08

08 May '08

>> The majority things use hyphens don't they? Please keep replies on list..heh ;-) > Dunno if there's a clear majority. There's plenty of both. > > Tho for the sake of keeping 2.4 self-consistent, we could revert this > patch > and fix the man pages. I don't really have any preference one way or the > other. Fair enough. If it's really worth deciding in the long run, we should start a new thread for a vote or something. Gavin. Suretec Systems is a limited company registered in Scotland. Registered number: SC258005. Registered office: 13 Whiteley Well Place, Inverurie, Aberdeenshire, AB51 4FP.

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Please test RE24
by Quanah Gibson-Mount 07 May '08

07 May '08

Please test RE24 as it has been resync'd with head to address known issues. Thanks! --Quanah -- Quanah Gibson-Mount Principal Software Engineer Zimbra, Inc -------------------- Zimbra :: the leader in open source messaging and collaboration

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Re: commit: ldap/ CHANGES
by Howard Chu 05 May '08

05 May '08

I moved the 2.4.9 tag forward for these. hyc(a)OpenLDAP.org wrote: > Update of /repo/OpenLDAP/pkg/ldap > > Modified Files: > Tag: OPENLDAP_REL_ENG_2_4 > CHANGES 1.5.10.196 -> 1.5.10.197 > > Log Message: > ITS#5486, caused by patch to #5418 > > > CVS Web URLs: > http://www.openldap.org/devel/cvsweb.cgi/ > http://www.openldap.org/devel/cvsweb.cgi/CHANGES > > Changes are generally available on cvs.openldap.org (and CVSweb) > within 30 minutes of being committed. > -- -- Howard Chu CTO, Symas Corp. http://www.symas.com Director, Highland Sun http://highlandsun.com/hyc/ Chief Architect, OpenLDAP http://www.openldap.org/project/

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size and count limit for slapo-constraint (patch included)
by manu＠netbsd.org 03 May '08

03 May '08

ftp.openldap.org has not enough room for me to upload the patch, so I'll make the ITS later. Here is it: http://ftp.espci.fr/shadow/manu/manu-20080430.patch Both size and count limit on attributes work, I tested various situations. There is just a bit I'm not sure about: + op->o_bd = on->on_info->oi_origdb; + rc = be_entry_get_rw( op, &op->o_req_ndn, NULL, NULL, 0, &target_entry ); + op->o_bd = be; Is it the way I'm supposed to get an entry for which I have a DN? It works, but it might be suboptimal. -- Emmanuel Dreyfus http://hcpnet.free.fr/pubz manu(a)netbsd.org

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multiple server certificates
by Hallvard B Furuseth 29 Apr '08

29 Apr '08

Would it be hard to make different listener addresses present different server certificates, signed by different CA certificates? (I'm sure I've asked someone on that before, but don't remember if it was this list.) -- Hallvard

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How to get rid of sys_errlist and sys_nerr?
by Michael B Allen 29 Apr '08

29 Apr '08

Hello, I'm trying to run something linked with libldap on a glibc-2.5 system on a glibc-2.3 linux system and the loader compains about not having the right versions of sys_errlist and sys_nerr. Why does libldap need these symbols? $ objdump -T libldap-2.3.so.0 | grep sys_ 0000000000000000 DO *UND* 0000000000000004 GLIBC_2.4 sys_nerr 0000000000000000 DO *UND* 0000000000000420 GLIBC_2.4 sys_errlist >From looking at config.log, configure finds strerror just fine. Is there any way to get rid of these symbols? Of all the symbols in all the libraries that make up my project these are the only two GLIBC_2.4 or above symbols. If I can get rid of them, my code should run on the glibc-2.3 system. Mike

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RE24 deadlock
by Aaron Richton 29 Apr '08

29 Apr '08

https://www.nbcs.rutgers.edu/~richton/test008deadlock-RE24_20080414.txt Could just be ITS#5391 proving that it still exists. BDB 4.2.52. testrun and the process are still just sitting there (from 10 days ago, should've looked at the machine more often...)

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Re: commit: ldap/servers/slapd/back-monitor cache.c
by Hallvard B Furuseth 29 Apr '08

29 Apr '08

ando(a)OpenLDAP.org writes: > Modified Files: > cache.c 1.32 -> 1.33 > avoid potential deadlock? I've never been sure of the back-monitor locking code.. Do volatile entries get cached? -- Hallvard

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OpenLDAP booth at OpenExpo, 25/26 May 2008, Karlsruhe, Germany
by Michael Ströder 28 Apr '08

28 Apr '08

HI! It seems my application to run an OpenLDAP booth at http://openexpo.de/ in Germany, Karlsruhe, 25./26. May 2008 was accepted. Like requested by them I'll sent them the OpenLDAP worm logo to be put on their web page. Volunteers welcome to help at that booth. It's right before Linuxtag in Berlin, Germany. Ciao, Michael.

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[Fwd: Re: deadlocks in OpenLDAP]
by Howard Chu 28 Apr '08

28 Apr '08

I haven't looked at this part of back-monitor. Someone else care to respond? -------- Original Message -------- Subject: Re: deadlocks in OpenLDAP Date: Mon, 28 Apr 2008 04:30:23 -0400 From: Yin Wang <yinw(a)umich.edu> To: Howard Chu <hyc(a)symas.com> Hi Howard, Our study shows a possible deadlock in OpenLDAP 2.4.8. Hope you could help explain. - monitor_cache_get at servers/slapd/back-monitor/cache.c:163 waiting for mp_mutex while holding mi_cache_mutex - monitor_cache_release at servers/slapd/back-monitor/cache.c:366 waiting for mi_cache_mutex while holding mp_mutex We have not been able to verify this in a real running environment, which could be difficult, if not impossible. Therefore your comments would be extremely valuable. Any help would be greatly appreciated. Yin ======= At 2008-01-12, 19:48:38 you wrote: ======= >Yin Wang wrote: >> Hi Howard, >> >> Sorry I am replying a very old email below that >> you send in last April. Terence is a colleague >> of mine and we are still working on the project. >> I hope to understand the problem better. >> >> When you said "While we can control the order of >> lock acquisition in the OpenLDAP code, we have no >> control over it in the BerkeleyDB layer", do you >> mean the (possible) deadlock comes from BerkeleyDB >> or it is because of the interaction of OpenLDAP >> and BerkeleyDB? If it is the latter case and I >> assume BerkeleyDB is deadlock-free, I don't understand >> why using such a library could cause deadlocks. >> >> Your help would be greatly appreciated. > >Since you say you're working on a research project, you shouldn't assume >anything. You should do some actual research. The BerkeleyDB lock system is >fully described in their documentation. Read it. > >If you have questions that aren't addressed by the BerkeleyDB docs you can ask >those, but I don't have time to answer questions about things that are already >well documented. >> >> Yin Wang >> Research Assistant >> EECS Department, University of Michigan >> >> >>> -----Original Message----- >>> From: Howard Chu [mailto:hyc@openldap.org] >>> Sent: Thursday, April 19, 2007 5:32 PM >>> To: Kelly, Terence P >>> Cc: Project(a)openldap.org >>> Subject: Re: deadlocks in OpenLDAP >>> >>> Kelly, Terence P wrote: >>> >>>> Hi, >>>> >>>> I'm a researcher with interests >>>> in concurrent programming issues. I'm >>>> writing with a question about deadlocks >>>> in OpenLDAP code. >>>> >>>> Based on the OpenLDAP issue tracking system, >>>> I gather that deadlocks involving circular >>>> wait for locks have occurred or have been >>>> suspected in slapd. >>>> >>>> In principle it's possible to avoid deadlock >>>> by consistently acquiring locks in a defined >>>> order, but in practice this can be inconvenient >>>> or impossible. >>>> >>>> Can you give me some intuition for why it's >>>> hard to prevent deadlocks in slapd? Has >>>> your experience with deadlocks in OpenLDAP >>>> software given you any generic insights >>>> into deadlock and how (not) to avoid it? >>>> Would your insights apply to other >>>> software in addition to slapd? >>>> >>>> Many thanks in advance for any wisdom you >>>> can share! Long editorials and brain dumps >>>> are particularly welcome. >>>> >>>> -- Terence >>> For OpenLDAP the problem is that there are two layers of locking systems >>> >>> in use - the OpenLDAP code and the BerkeleyDB code. While we can control >>> >>> the order of lock acquisition in the OpenLDAP code, we have no control >>> over it in the BerkeleyDB layer. As such, the usual approach of strictly >>> >>> ordering locks doesn't work here. > >-- > -- Howard Chu > Chief Architect, Symas Corp. http://www.symas.com > Director, Highland Sun http://highlandsun.com/hyc/ > Chief Architect, OpenLDAP http://www.openldap.org/project/ = = = = = = = = = = = = = = = = = = = = -- -- Howard Chu CTO, Symas Corp. http://www.symas.com Director, Highland Sun http://highlandsun.com/hyc/ Chief Architect, OpenLDAP http://www.openldap.org/project/

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