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Re: (ITS#4924) assertion failure during test039-glue-ldap-concurrency
by ando＠sys-net.it 12 Apr '07

12 Apr '07

ando(a)sys-net.it wrote: > rhafer(a)suse.de wrote: >> I was able to reproduce this problem again. It does not happen during every >> run of test039-glue-ldap-concurrency (probably during 1 out of 10). This >> time I had enabled debug logging in the slapd-search tester. Find the log >> of it below. What's really strange that it fails when chasing a referral to >> ldap://localhost:9016 (there is nothing listening on port 9016 during >> test039) > >> ldap_new_connection 0x100141e0: unexpected response 96 from BIND request id=376 >> lt-slapd-search: request.c:470: ldap_new_connection: Assertion `0' failed. > > 96 is LDAP_REQ_BIND, which __should_not__ be returned by ldap_result() > in any case. The bug is buried deeper in libldap, so the assert(0) was > apparently worth :) Another comment: would it be possible to check if the problem was already present in earlier versions? p. Ing. Pierangelo Masarati OpenLDAP Core Team SysNet s.r.l. via Dossi, 8 - 27100 Pavia - ITALIA http://www.sys-net.it --------------------------------------- Office: +39 02 23998309 Mobile: +39 333 4963172 Email: pierangelo.masarati(a)sys-net.it ---------------------------------------

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Re: (ITS#4924) assertion failure during test039-glue-ldap-concurrency
by ando＠sys-net.it 12 Apr '07

12 Apr '07

rhafer(a)suse.de wrote: > I was able to reproduce this problem again. It does not happen during every > run of test039-glue-ldap-concurrency (probably during 1 out of 10). This > time I had enabled debug logging in the slapd-search tester. Find the log > of it below. What's really strange that it fails when chasing a referral to > ldap://localhost:9016 (there is nothing listening on port 9016 during > test039) > ldap_new_connection 0x100141e0: unexpected response 96 from BIND request id=376 > lt-slapd-search: request.c:470: ldap_new_connection: Assertion `0' failed. 96 is LDAP_REQ_BIND, which __should_not__ be returned by ldap_result() in any case. The bug is buried deeper in libldap, so the assert(0) was apparently worth :) Thanks, p. Ing. Pierangelo Masarati OpenLDAP Core Team SysNet s.r.l. via Dossi, 8 - 27100 Pavia - ITALIA http://www.sys-net.it --------------------------------------- Office: +39 02 23998309 Mobile: +39 333 4963172 Email: pierangelo.masarati(a)sys-net.it ---------------------------------------

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Re: (ITS#4924) assertion failure during test039-glue-ldap-concurrency
by rhafer＠suse.de 12 Apr '07

12 Apr '07

I was able to reproduce this problem again. It does not happen during every run of test039-glue-ldap-concurrency (probably during 1 out of 10). This time I had enabled debug logging in the slapd-search tester. Find the log of it below. What's really strange that it fails when chasing a referral to ldap://localhost:9016 (there is nothing listening on port 9016 during test039) [..] ldap_chase_v3referral: msgid 374, url "ldap://localhost:9016/cn=Somewhere,ou=Meta,dc=example,dc=com??sub" ldap_send_server_request ldap_new_connection 0 1 1 ldap_int_open_connection ldap_connect_to_host: TCP localhost:9016 ldap_new_socket: 4 ldap_prepare_socket: 4 ldap_connect_to_host: Trying 127.0.0.1:9016 ldap_connect_timeout: fd: 4 tm: -1 async: 0 anonymous rebind via ldap_bind_s ldap_sasl_bind ldap_send_initial_request ldap_send_server_request ldap_result ld 0x100141e0 msgid 376 ldap_chkResponseList ld 0x100141e0 msgid 376 all 1 ldap_chkResponseList returns ld 0x100141e0 NULL wait4msg ld 0x100141e0 msgid 376 (timeout 100000 usec) wait4msg continue ld 0x100141e0 msgid 376 all 1 ** ld 0x100141e0 Connections: * host: localhost port: 9016 refcnt: 2 status: Connected last used: Thu Apr 12 08:10:47 2007 rebind in progress queue is empty * host: localhost port: 9013 (default) refcnt: 2 status: Connected last used: Thu Apr 12 08:10:47 2007 ** ld 0x100141e0 Outstanding Requests: * msgid 376, origid 376, status InProgress outstanding referrals 0, parent count 0 * msgid 374, origid 374, status InProgress outstanding referrals 1, parent count 0 ** ld 0x100141e0 Response Queue: * msgid 374, type 100 ldap_chkResponseList ld 0x100141e0 msgid 376 all 1 ldap_chkResponseList returns ld 0x100141e0 NULL ldap_int_select read1msg: ld 0x100141e0 msgid 376 all 1 read1msg: ld 0x100141e0 msgid 376 message type unknown new result: res_errno: 3, res_error: <>, res_matched: <> read1msg: ld 0x100141e0 0 new referrals read1msg: mark request completed, ld 0x100141e0 msgid 376 request done: ld 0x100141e0 msgid 376 res_errno: 3, res_error: <>, res_matched: <> ldap_free_request (origid 376, msgid 376) ldap_free_connection 0 1 ldap_free_connection: refcnt 1 ldap_new_connection 0x100141e0: unexpected response 96 from BIND request id=376 lt-slapd-search: request.c:470: ldap_new_connection: Assertion `0' failed. [..] -- Ralf

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Re: (ITS#4925) Modify operation with NOOP control on a BDB backend causes slapd to crash
by jclarke＠linagora.com 12 Apr '07

12 Apr '07

Pierangelo Masarati wrote: > jclarke(a)linagora.com wrote: > >> When trying a modify operation (such as changing or adding a value of an >> attribute) with the NOOP control (set to critical) on an entry stored in a BDB >> backend, slapd crashes, with the following error: > > Thanks, applied to HEAD/re23. Please test and report. p. Just tested HEAD and RE23, NOOP works great on all operations. Thanks! -- Jonathan Clarke Linagora - OSSA 27, rue de Berri 75008 Paris Tél. 01 58 18 68 28 Fax. 01 58 18 68 29

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Re: (ITS#4868) Binary Attribute Patch(es)
by ando＠sys-net.it 11 Apr '07

11 Apr '07

ando(a)sys-net.it wrote: > Right. Time permitting, I'll check why back-sql behaves differently > and, in case, how to fix it. HEAD should be working as expected, now. I've also updated mysql and psql sql-test000 (the latter is untested, though). Please test and report. p. Ing. Pierangelo Masarati OpenLDAP Core Team SysNet s.r.l. via Dossi, 8 - 27100 Pavia - ITALIA http://www.sys-net.it --------------------------------------- Office: +39 02 23998309 Mobile: +39 333 4963172 Email: pierangelo.masarati(a)sys-net.it ---------------------------------------

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Re: (ITS#4922) test_filter problem on uid filter
by ando＠sys-net.it 11 Apr '07

11 Apr '07

juritanganelli(a)gmail.com wrote: > I have developed a custom backend that uses the test_filter function to > determine > if an entry is matching a given input filter. Filter on any of the entry > attribute but Uid works fine. When i specify i filter on the uid attribute i get > very strange results for example: > > - when i use the complete value of the attribute such as uid=e497004 no result > is returned, but there is an entry with that value. > - when i use some regular expressions the result is correclty such as uid=e* the > corresponding entry is correctly returned. Unless you can show evidence that the problem is within test_filter(), which is known to work as expected, custom code issues cannot be considered OpenLDAP issues. You don't provide enough information to prove the above, so this ITS will be suspended waiting for further information. For example, did you check that the entry with uid=e497004 was actually candidate and thus subjected to test_filter()? p. Ing. Pierangelo Masarati OpenLDAP Core Team SysNet s.r.l. via Dossi, 8 - 27100 Pavia - ITALIA http://www.sys-net.it --------------------------------------- Office: +39 02 23998309 Mobile: +39 333 4963172 Email: pierangelo.masarati(a)sys-net.it ---------------------------------------

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Re: (ITS#4925) Modify operation with NOOP control on a BDB backend causes slapd to crash
by ando＠sys-net.it 11 Apr '07

11 Apr '07

jclarke(a)linagora.com wrote: > When trying a modify operation (such as changing or adding a value of an > attribute) with the NOOP control (set to critical) on an entry stored in a BDB > backend, slapd crashes, with the following error: Thanks, applied to HEAD/re23. Please test and report. p. Ing. Pierangelo Masarati OpenLDAP Core Team SysNet s.r.l. via Dossi, 8 - 27100 Pavia - ITALIA http://www.sys-net.it --------------------------------------- Office: +39 02 23998309 Mobile: +39 333 4963172 Email: pierangelo.masarati(a)sys-net.it ---------------------------------------

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(ITS#4925) Modify operation with NOOP control on a BDB backend causes slapd to crash
by jclarke＠linagora.com 11 Apr '07

11 Apr '07

Full_Name: Jonathan Clarke Version: 2.3.35 OS: Linux (ubuntu) URL: Submission from: (NULL) (213.41.243.192) When trying a modify operation (such as changing or adding a value of an attribute) with the NOOP control (set to critical) on an entry stored in a BDB backend, slapd crashes, with the following error: *** glibc detected *** ./servers/slapd/slapd: munmap_chunk(): invalid pointer: 0x0821e235 *** ======= Backtrace: ========= [...] ======= Memory map: ======== [...] Abandon (core dumped) This only happens for operations that should succeed (ie, should return the NOOP error code LDAP_X_NO_OPERATION). Operations which fail for other reasons (refused by ACLs, schema error, etc) do not make slapd crash. I have tested this on versions 2.3.32, 2.3.34, 2.3.35 and HEAD (as of today). The crash only happens with the BDB backend (I tested slapd with a ldap backend which only made the remote slapd with a BDB backend crash, not the one with the ldap backend). After some investigation, I found that this crash results from a call to attrs_free() in servers/slapd/back-bdb/modify.c, after the "return_results" label. This seems to be a double free() problem. The following patch solved the problem for me on versions 2.3.32, 2.3.34, 2.3.35 and HEAD (as of today). With this patch, NOOP behaves as expected. The patch simply adds 2 lines copied from the error handling "if" higher up in the same function (bdb_modify). ---------------------BEGIN PATCH--------------------- --- modify.c.~1.124.2.16.~ 2007-01-02 22:44:00.000000000 +0100 +++ modify.c 2007-04-11 14:44:56.000000000 +0200 @@ -538,6 +538,8 @@ } else { rs->sr_err = LDAP_X_NO_OPERATION; ltid = NULL; + /* Only free attrs if they were dup'd. */ + if ( dummy.e_attrs == e->e_attrs ) dummy.e_attrs = NULL; goto return_results; } } else { ----------------------END PATCH---------------------- (sorry not to put this patch on an FTP site, but ftp.openldap.org complains with 452 Error writing file: No space left on device.) I, Jonathan Clarke, hereby place the preceding modifications to OpenLDAP Software (and only these modifications) into the public domain. Hence, these modifications may be freely used and/or redistributed for any purpose with or without attribution and/or other notice.

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Re: (ITS#4910) mirrormode prevents syncrepl engine from working
by ali.pouya＠free.fr 11 Apr '07

11 Apr '07

Works fine. Thanks a lot. Issue to be closed. Best regards Ali Pouya

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RE: slapd+pcache keeps crashing on FreeBSD 6.2 (ITS#4841)
by imriz＠co.zahav.net.il 10 Apr '07

10 Apr '07

I have new tar.gz file ready, this time with unstripped binaries: http://mariska.inter.net.il/~imriz/slapd-crash-10042007.tar.gz root@cemetery:~$ ldd /usr/local/libexec/slapd /usr/local/libexec/slapd: libldap_r-2.3-releng.so.2 => /usr/local/lib/libldap_r-2.3-releng.so.2 (0xa8161000) liblber-2.3-releng.so.2 => /usr/local/lib/liblber-2.3-releng.so.2 (0xa81a1000) libssl.so.4 => /usr/lib/libssl.so.4 (0xa81b7000) libcrypto.so.4 => /lib/libcrypto.so.4 (0xa81e5000) libfetch.so.4 => /usr/lib/libfetch.so.4 (0xa82d8000) libcom_err.so.3 => /usr/lib/libcom_err.so.3 (0xa82e5000) libcrypt.so.3 => /lib/libcrypt.so.3 (0xa82e7000) libltdl.so.4 => /usr/local/lib/libltdl.so.4 (0xa82ff000) libpthread.so.2 => /usr/lib/libthr.so.2 (0xa8307000) libc.so.6 => /lib/libc.so.6 (0xa8319000) root@cemetery:~$ file /usr/local/libexec/slapd /usr/local/libexec/slapd: ELF 32-bit LSB executable, Intel 80386, version 1 (FreeBSD), dynamically linked (uses shared libs), not stripped Please let me know if there is anything else you need, --imriz > -----Original Message----- > From: Howard Chu [mailto:hyc@symas.com] > Sent: Tuesday, April 03, 2007 12:42 AM > To: Imri Zvik ( Smile ) > Cc: openldap-its(a)openldap.org > Subject: Re: slapd+pcache keeps crashing on FreeBSD 6.2 (ITS#4841) > > imriz(a)co.zahav.net.il wrote: > > Sure. New core dumps and binary file is at > > http://mariska.inter.net.il/~imriz/slapd-core.tar.gz > > The slapd in this snapshot was stripped so no debug symbols are > present. > Please be sure to use an unstripped binary. > > Also, since you're also loading libldap_r, liblber, back-ldap, back- > bdb, > back-meta, and back-ldbm dynamically, you'll need to include those > modules in the tarball. (Also with debug and unstripped.) > > Although at this point I'm wondering why you're using back-ldbm, which > has been deprecated for quite a long time. > > > Please notice that the previous dump was from FreeBSD ports (OpenLDAP > > version 2.3.33). > > > > This one was fetched from the CVS (OPENLDAP_REL_ENG_2_3), with the > > following configure options: > > > > ./configure --with-threads=posix --with-tls=openssl --enable-dynamic > > --without-cyrus-sasl --enable-modules --localstatedir=/var/ > > db --enable-ldbm=mod --enable-crypt --enable-lmpasswd --enable- > ldap=mod > > --enable-meta=mod --enable-rewrite --enable-null=mod --enabl > > e-monitor=mod --enable-proxycache --disable-syncprov --enable-bdb=mod > > --enable-hdb=mod --enable-dbm-api=berkeley --disable-slurpd -- > > prefix=/usr/local --enable-debug > > > > > > -----Original Message----- > > From: Howard Chu [mailto:openldap-its@OpenLDAP.org] > > Sent: Tuesday, February 13, 2007 1:14 AM > > To: Imri Zvik > > Subject: Re: slapd+pcache keeps crashing on FreeBSD 6.2 (ITS#4841) > > > > It looks like this core is from a binary without debug symbols > present, > > can you > > recompile with debugging enabled and get a new stack trace and core > > file? > > > > > > . > > > > > -- > -- 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/

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