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Re: (ITS#7636) slapd crash when multi-master replication (syncrepl) enabled
by kb9vqf＠pearsoncomputing.net 09 Jul '13

09 Jul '13

------=_20130709125114_66017 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 8bit I have traced the fault into the syncrepl overlay, specifically it passes a static global variable to be_search(). If a plugin is configured, slapi_op_search_callback() is called, which then attempts to free the static global search variable passed to be_search(), causing a crash. The attached patch fixes the problem on my test system. ------=_20130709125114_66017 Content-Type: text/x-patch; name="openldap_syncprov_plugin_crash_fix.diff" Content-Transfer-Encoding: 8bit Content-Disposition: attachment; filename="openldap_syncprov_plugin_crash_fix.diff" --- servers/slapd/overlays/syncprov.c +++ servers/slapd/overlays/syncprov.c @@ -460,7 +460,13 @@ fop.ors_attrs = slap_anlist_no_attrs; fop.ors_attrsonly = 1; fop.ors_filter = &generic_filter; - fop.ors_filterstr = generic_filterstr; + + // If any plugins are enabled, slapi_overlay will attempt to free the provided filter string in slapi_op_search_callback, causing a crash + // Therefore, allocate a copy of generic_filterstr for use by be_search() + struct berval filterstr; + filterstr.bv_len = generic_filterstr.bv_len; + filterstr.bv_val = op->o_tmpalloc(generic_filterstr.bv_len + 1, op->o_tmpmemctx); + memcpy(filterstr.bv_val, generic_filterstr.bv_val, generic_filterstr.bv_len + 1); rc = fop.o_bd->be_search( &fop, &frs ); } else { ------=_20130709125114_66017--

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Re: (ITS#7636) slapd crash when multi-master replication (syncrepl) enabled
by kb9vqf＠pearsoncomputing.net 09 Jul '13

09 Jul '13

Here is the backtrace with the above dummy plugin on the latest OpenLDAP (2.4.35): Program received signal SIGABRT, Aborted. [Switching to Thread 0x7fffe34a3700 (LWP 15269)] 0x00007ffff5a32475 in *__GI_raise (sig=<optimized out>) at ../nptl/sysdeps/unix/sysv/linux/raise.c:64 64 ../nptl/sysdeps/unix/sysv/linux/raise.c: No such file or directory. (gdb) bt #0 0x00007ffff5a32475 in *__GI_raise (sig=<optimized out>) at ../nptl/sysdeps/unix/sysv/linux/raise.c:64 #1 0x00007ffff5a356f0 in *__GI_abort () at abort.c:92 #2 0x00007ffff5a6d52b in __libc_message (do_abort=<optimized out>, fmt=<optimized out>) at ../sysdeps/unix/sysv/linux/libc_fatal.c:189 #3 0x00007ffff5a76d76 in malloc_printerr (action=3, str=0x7ffff5b4f170 "munmap_chunk(): invalid pointer", ptr=<optimized out>) at malloc.c:6283 #4 0x00007ffff63d214a in slapi_op_search_callback (op=0x7fffe34a0ff0, rs=<optimized out>, prc=<optimized out>) at ../../../../../servers/slapd/slapi/slapi_overlay.c:313 #5 slapi_op_search_callback (op=0x7fffe34a0ff0, rs=<optimized out>, prc=<optimized out>) at ../../../../../servers/slapd/slapi/slapi_overlay.c:296 #6 0x00007ffff63d304f in slapi_op_func (rs=0x7fffe34a0f80, op=<optimized out>) at ../../../../../servers/slapd/slapi/slapi_overlay.c:631 #7 slapi_op_func (op=0x7fffe34a0ff0, rs=0x7fffe34a0f80) at ../../../../../servers/slapd/slapi/slapi_overlay.c:556 #8 0x00005555555ff18a in overlay_op_walk (op=op@entry=0x7fffe34a0ff0, rs=0x7fffe34a0f80, which=op_search, oi=0x5555559e5680, on=0x5555559e43a0) at ../../../../servers/slapd/backover.c:661 #9 0x00005555555ff31b in over_op_func (op=0x7fffe34a0ff0, rs=<optimized out>, which=<optimized out>) at ../../../../servers/slapd/backover.c:723 #10 0x00007ffff1c4a45b in syncprov_findbase (op=op@entry=0x555555f093c0, fc=fc@entry=0x7fffe34a1290) at syncprov.c:465 #11 0x00007ffff1c4cd87 in syncprov_op_search (op=0x555555f093c0, rs=0x7fffe34a2a50) at syncprov.c:2461 #12 0x00005555555ff18a in overlay_op_walk (op=op@entry=0x555555f093c0, rs=rs@entry=0x7fffe34a2a50, which=which@entry=op_search, oi=0x5555559e5680, on=0x5555559bfbe0) at ../../../../servers/slapd/backover.c:661 #13 0x00007ffff63d3086 in slapi_op_func (rs=0x7fffe34a2a50, op=<optimized out>) at ../../../../../servers/slapd/slapi/slapi_overlay.c:647 #14 slapi_op_func (op=0x555555f093c0, rs=0x7fffe34a2a50) at ../../../../../servers/slapd/slapi/slapi_overlay.c:556 #15 0x00005555555ff18a in overlay_op_walk (op=op@entry=0x555555f093c0, rs=0x7fffe34a2a50, which=op_search, oi=0x5555559e5680, on=0x5555559e43a0) at ../../../../servers/slapd/backover.c:661 #16 0x00005555555ff31b in over_op_func (op=0x555555f093c0, rs=<optimized out>, which=<optimized out>) at ../../../../servers/slapd/backover.c:723 #17 0x0000555555594641 in fe_op_search (op=0x555555f093c0, rs=0x7fffe34a2a50) at ../../../../servers/slapd/search.c:402 #18 0x0000555555593f06 in do_search (op=0x555555f093c0, rs=0x7fffe34a2a50) at ../../../../servers/slapd/search.c:247 #19 0x0000555555591961 in connection_operation (ctx=ctx@entry=0x7fffe34a2ba0, arg_v=arg_v@entry=0x555555f093c0) at ../../../../servers/slapd/connection.c:1150 #20 0x0000555555591c84 in connection_read_thread (ctx=0x7fffe34a2ba0, argv=<optimized out>) at ../../../../servers/slapd/connection.c:1286 #21 0x00007ffff7b9dff3 in ?? () from /usr/lib/x86_64-linux-gnu/libldap_r-2.4.so.2 #22 0x00007ffff5d90b50 in start_thread (arg=<optimized out>) at pthread_create.c:304 #23 0x00007ffff5adaa7d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112 #24 0x0000000000000000 in ?? () (gdb)

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Re: (ITS#7636) slapd crash when multi-master replication (syncrepl) enabled
by kb9vqf＠pearsoncomputing.net 09 Jul '13

09 Jul '13

I have done further testing, and it appears that simply enabling a dummy plugin is enough to cause slapd to crash. This plugin code alone is sufficient to cause a crash when syncrepl is enabled: #include "slapi-plugin.h" int plugin_init (Slapi_PBlock *pb); int internal_plugin_init (Slapi_PBlock *pb); __attribute__ ((visibility ("default"))) int plugin_init (Slapi_PBlock *pb) { return 0; } Therefore, it would seem that there is actually a bug in the openldap code, not in a third-party plugin as originally thought. What do you need to investigate this bug further? Thanks!

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Re: (ITS#7638) Handle connection loss in SQL backend
by pierre＠reactos.org 08 Jul '13

08 Jul '13

This is a cryptographically signed message in MIME format. --------------ms090404050901070205030703 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: quoted-printable Unfortunately, I don't see any other solution. I browsed everything I=20 could in ODBC doc, in order to be able to query link status, but there's = no way. And the other solution to redo the whole statement in case of failure=20 would be even more complex and would require too many code rewrites due=20 to a complete logic change. So, it seems to me to be the intermediate=20 solution. The overhead being limited on "decent" connection. Regards, On 07/07/2013 14:33, Michael Str=F6der wrote: > pierre(a)reactos.org wrote: >> With this patch, before preparing any req on the given connection=20 >> handle, the >> backend will first try to check whether the connection is active by=20 >> issue a >> dummy query. In case it's not, it will close the previous connection=20 >> and open a >> new one. And then, will prepare the req on the connection link. >> >> I made this choice of developement because, preparing statement,=20 >> executing it >> and then, only looking whether it fails to re-submit would have been=20 >> more >> complex, since it would have required to start over the whole process = >> for the >> query (statement preparation and such) while preparation & execution=20 >> aren't not >> in the same function. > > Hmm, so there's an extra dummy query for each real query. If the SQL=20 > DB is connected over network this means a synchronous extra round trip = > for each query. > > Ciao, Michael. > > --=20 Pierre Schweitzer<pierre at reactos.org> System Administrator ReactOS Foundation --------------ms090404050901070205030703 Content-Type: application/pkcs7-signature; name="smime.p7s" Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="smime.p7s" Content-Description: S/MIME Cryptographic Signature MIAGCSqGSIb3DQEHAqCAMIACAQExCzAJBgUrDgMCGgUAMIAGCSqGSIb3DQEHAQAAoIIMuTCC BjQwggQcoAMCAQICASAwDQYJKoZIhvcNAQEFBQAwfTELMAkGA1UEBhMCSUwxFjAUBgNVBAoT DVN0YXJ0Q29tIEx0ZC4xKzApBgNVBAsTIlNlY3VyZSBEaWdpdGFsIENlcnRpZmljYXRlIFNp Z25pbmcxKTAnBgNVBAMTIFN0YXJ0Q29tIENlcnRpZmljYXRpb24gQXV0aG9yaXR5MB4XDTA3 MTAyNDIxMDI1NVoXDTE3MTAyNDIxMDI1NVowgYwxCzAJBgNVBAYTAklMMRYwFAYDVQQKEw1T dGFydENvbSBMdGQuMSswKQYDVQQLEyJTZWN1cmUgRGlnaXRhbCBDZXJ0aWZpY2F0ZSBTaWdu aW5nMTgwNgYDVQQDEy9TdGFydENvbSBDbGFzcyAyIFByaW1hcnkgSW50ZXJtZWRpYXRlIENs 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(ITS#7639) test062-config-delete intermittently succeeds
by rsbx＠acm.org 07 Jul '13

07 Jul '13

Full_Name: Raymond S Brand Version: 60720f5d9cdc19092d0aad6b0a94e196e5525d1c OS: Debian Wheezy amd64 URL: Submission from: (NULL) (50.88.155.14) When run with the bdb, hdb, and mdb backends, test062-config-delete intermittently succeeds but more often than not it fails. It is the only test that has failed in my testing. Test system, a VirtualBox instance: Linux LDAP 3.2.0-4-amd64 #1 SMP Debian 3.2.46-1 x86_64 GNU/Linux 2 VCPUs; 1.5GB VirtualBox host system: Linux LDAP 3.2.0-4-amd64 #1 SMP Debian 3.2.46-1 x86_64 GNU/Linux 2 CPUs (Core 2 Duo); 8GB Both O/S's are current with respect to Debian updates. Build options: ../../configure --prefix=/tmp/ol --enable-perl --enable-overlays --enable-bdb When run with full logging, the last line of the server log file appeared to be corrupted. This is a sample run: XXXX$ ./run -b mdb test062-config-delete Cleaning up test run directory leftover from previous run. Running ../../../tests/scripts/test062-config-delete for mdb... running defines.sh Starting slapd on TCP/IP port 9011... /home/internet/Projects/OpenLDAP/openldap/BUILD/t2/tests Using ldapsearch to check that slapd is running... Waiting 5 seconds for slapd to start... Inserting syncprov overlay ... Starting a refreshAndPersist search in background Removing syncprov overlay again ... Waiting 2 seconds for RefreshAndPersist search to end ... Checking return code of backgrounded RefreshAndPersist search ... Exit code correct. Running a refreshOnly search, should fail... ldapsearch should have failed with Critical extension is unavailable (12)! ../../../tests/scripts/test062-config-delete: 164: kill: No such process XXXX$ The following is the output from valgrind for the above run. Valgrind was used specifically to aid in creating this bug report; it is not part of my normal testing of this software. ==2454== Memcheck, a memory error detector ==2454== Copyright (C) 2002-2011, and GNU GPL'd, by Julian Seward et al. ==2454== Using Valgrind-3.7.0 and LibVEX; rerun with -h for copyright info ==2454== Command: /home/internet/Projects/OpenLDAP/openldap/BUILD/t2/tests/../servers/slapd/slapd -s0 -F ./slapd.d -h ldap://localhost:9011/ -d 0x4105 ==2454== Parent PID: 2442 ==2454== ==2454== Thread 4: ==2454== Invalid read of size 8 ==2454== at 0x45006E: send_ldap_response (result.c:704) ==2454== by 0x4508E5: slap_send_ldap_result (result.c:844) ==2454== by 0x5572BB: syncprov_db_close (syncprov.c:3178) ==2454== by 0x4A6B5A: overlay_remove_cb (backover.c:1189) ==2454== by 0x44F93A: slap_cleanup_play (result.c:525) ==2454== by 0x44FD99: send_ldap_response (result.c:717) ==2454== by 0x4508E5: slap_send_ldap_result (result.c:844) ==2454== by 0x42F7C4: config_back_delete (bconfig.c:6481) ==2454== by 0x4A75F2: overlay_op_walk (backover.c:691) ==2454== by 0x4A7734: over_op_func (backover.c:743) ==2454== by 0x45931F: fe_op_delete (delete.c:174) ==2454== by 0x45904C: do_delete (delete.c:95) ==2454== Address 0xa23cc80 is 0 bytes inside a block of size 758 free'd ==2454== at 0x4C27D4E: free (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so) ==2454== by 0x555F5B: syncprov_free_syncop (syncprov.c:814) ==2454== by 0x555FE5: syncprov_drop_psearch (syncprov.c:1109) ==2454== by 0x556141: syncprov_op_abandon (syncprov.c:1158) ==2454== by 0x45E0A6: fe_op_abandon (abandon.c:136) ==2454== by 0x43EBFB: connection_abandon (connection.c:747) ==2454== by 0x4403B8: connection_closing (connection.c:820) ==2454== by 0x440EBA: connection_read_thread (connection.c:1476) ==2454== by 0x573917: ldap_int_thread_pool_wrapper (tpool.c:688) ==2454== by 0x59BFB4F: start_thread (pthread_create.c:304) ==2454== by 0x8039A7C: clone (clone.S:112) ==2454== ==2454== Invalid read of size 8 ==2454== at 0x450072: send_ldap_response (result.c:704) ==2454== by 0x4508E5: slap_send_ldap_result (result.c:844) ==2454== by 0x5572BB: syncprov_db_close (syncprov.c:3178) ==2454== by 0x4A6B5A: overlay_remove_cb (backover.c:1189) ==2454== by 0x44F93A: slap_cleanup_play (result.c:525) ==2454== by 0x44FD99: send_ldap_response (result.c:717) ==2454== by 0x4508E5: slap_send_ldap_result (result.c:844) ==2454== by 0x42F7C4: config_back_delete (bconfig.c:6481) ==2454== by 0x4A75F2: overlay_op_walk (backover.c:691) ==2454== by 0x4A7734: over_op_func (backover.c:743) ==2454== by 0x45931F: fe_op_delete (delete.c:174) ==2454== by 0x45904C: do_delete (delete.c:95) ==2454== Address 0xa23ce30 is 432 bytes inside a block of size 758 free'd ==2454== at 0x4C27D4E: free (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so) ==2454== by 0x555F5B: syncprov_free_syncop (syncprov.c:814) ==2454== by 0x555FE5: syncprov_drop_psearch (syncprov.c:1109) ==2454== by 0x556141: syncprov_op_abandon (syncprov.c:1158) ==2454== by 0x45E0A6: fe_op_abandon (abandon.c:136) ==2454== by 0x43EBFB: connection_abandon (connection.c:747) ==2454== by 0x4403B8: connection_closing (connection.c:820) ==2454== by 0x440EBA: connection_read_thread (connection.c:1476) ==2454== by 0x573917: ldap_int_thread_pool_wrapper (tpool.c:688) ==2454== by 0x59BFB4F: start_thread (pthread_create.c:304) ==2454== by 0x8039A7C: clone (clone.S:112) ==2454== ==2454== Invalid read of size 8 ==2454== at 0x45007F: send_ldap_response (result.c:705) ==2454== by 0x4508E5: slap_send_ldap_result (result.c:844) ==2454== by 0x5572BB: syncprov_db_close (syncprov.c:3178) ==2454== by 0x4A6B5A: overlay_remove_cb (backover.c:1189) ==2454== by 0x44F93A: slap_cleanup_play (result.c:525) ==2454== by 0x44FD99: send_ldap_response (result.c:717) ==2454== by 0x4508E5: slap_send_ldap_result (result.c:844) ==2454== by 0x42F7C4: config_back_delete (bconfig.c:6481) ==2454== by 0x4A75F2: overlay_op_walk (backover.c:691) ==2454== by 0x4A7734: over_op_func (backover.c:743) ==2454== by 0x45931F: fe_op_delete (delete.c:174) ==2454== by 0x45904C: do_delete (delete.c:95) ==2454== Address 0xa23cc80 is 0 bytes inside a block of size 758 free'd ==2454== at 0x4C27D4E: free (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so) ==2454== by 0x555F5B: syncprov_free_syncop (syncprov.c:814) ==2454== by 0x555FE5: syncprov_drop_psearch (syncprov.c:1109) ==2454== by 0x556141: syncprov_op_abandon (syncprov.c:1158) ==2454== by 0x45E0A6: fe_op_abandon (abandon.c:136) ==2454== by 0x43EBFB: connection_abandon (connection.c:747) ==2454== by 0x4403B8: connection_closing (connection.c:820) ==2454== by 0x440EBA: connection_read_thread (connection.c:1476) ==2454== by 0x573917: ldap_int_thread_pool_wrapper (tpool.c:688) ==2454== by 0x59BFB4F: start_thread (pthread_create.c:304) ==2454== by 0x8039A7C: clone (clone.S:112) ==2454== ==2454== Invalid read of size 8 ==2454== at 0x450083: send_ldap_response (result.c:705) ==2454== by 0x4508E5: slap_send_ldap_result (result.c:844) ==2454== by 0x5572BB: syncprov_db_close (syncprov.c:3178) ==2454== by 0x4A6B5A: overlay_remove_cb (backover.c:1189) ==2454== by 0x44F93A: slap_cleanup_play (result.c:525) ==2454== by 0x44FD99: send_ldap_response (result.c:717) ==2454== by 0x4508E5: slap_send_ldap_result (result.c:844) ==2454== by 0x42F7C4: config_back_delete (bconfig.c:6481) ==2454== by 0x4A75F2: overlay_op_walk (backover.c:691) ==2454== by 0x4A7734: over_op_func (backover.c:743) ==2454== by 0x45931F: fe_op_delete (delete.c:174) ==2454== by 0x45904C: do_delete (delete.c:95) ==2454== Address 0xa23ce30 is 432 bytes inside a block of size 758 free'd ==2454== at 0x4C27D4E: free (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so) ==2454== by 0x555F5B: syncprov_free_syncop (syncprov.c:814) ==2454== by 0x555FE5: syncprov_drop_psearch (syncprov.c:1109) ==2454== by 0x556141: syncprov_op_abandon (syncprov.c:1158) ==2454== by 0x45E0A6: fe_op_abandon (abandon.c:136) ==2454== by 0x43EBFB: connection_abandon (connection.c:747) ==2454== by 0x4403B8: connection_closing (connection.c:820) ==2454== by 0x440EBA: connection_read_thread (connection.c:1476) ==2454== by 0x573917: ldap_int_thread_pool_wrapper (tpool.c:688) ==2454== by 0x59BFB4F: start_thread (pthread_create.c:304) ==2454== by 0x8039A7C: clone (clone.S:112) ==2454== ==2454== Invalid read of size 8 ==2454== at 0x44FD85: send_ldap_response (result.c:716) ==2454== by 0x4508E5: slap_send_ldap_result (result.c:844) ==2454== by 0x5572BB: syncprov_db_close (syncprov.c:3178) ==2454== by 0x4A6B5A: overlay_remove_cb (backover.c:1189) ==2454== by 0x44F93A: slap_cleanup_play (result.c:525) ==2454== by 0x44FD99: send_ldap_response (result.c:717) ==2454== by 0x4508E5: slap_send_ldap_result (result.c:844) ==2454== by 0x42F7C4: config_back_delete (bconfig.c:6481) ==2454== by 0x4A75F2: overlay_op_walk (backover.c:691) ==2454== by 0x4A7734: over_op_func (backover.c:743) ==2454== by 0x45931F: fe_op_delete (delete.c:174) ==2454== by 0x45904C: do_delete (delete.c:95) ==2454== Address 0xa23cdb8 is 312 bytes inside a block of size 758 free'd ==2454== at 0x4C27D4E: free (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so) ==2454== by 0x555F5B: syncprov_free_syncop (syncprov.c:814) ==2454== by 0x555FE5: syncprov_drop_psearch (syncprov.c:1109) ==2454== by 0x556141: syncprov_op_abandon (syncprov.c:1158) ==2454== by 0x45E0A6: fe_op_abandon (abandon.c:136) ==2454== by 0x43EBFB: connection_abandon (connection.c:747) ==2454== by 0x4403B8: connection_closing (connection.c:820) ==2454== by 0x440EBA: connection_read_thread (connection.c:1476) ==2454== by 0x573917: ldap_int_thread_pool_wrapper (tpool.c:688) ==2454== by 0x59BFB4F: start_thread (pthread_create.c:304) ==2454== by 0x8039A7C: clone (clone.S:112) ==2454== ==2454== Invalid read of size 8 ==2454== at 0x450B28: slap_send_ldap_result (result.c:845) ==2454== by 0x5572BB: syncprov_db_close (syncprov.c:3178) ==2454== by 0x4A6B5A: overlay_remove_cb (backover.c:1189) ==2454== by 0x44F93A: slap_cleanup_play (result.c:525) ==2454== by 0x44FD99: send_ldap_response (result.c:717) ==2454== by 0x4508E5: slap_send_ldap_result (result.c:844) ==2454== by 0x42F7C4: config_back_delete (bconfig.c:6481) ==2454== by 0x4A75F2: overlay_op_walk (backover.c:691) ==2454== by 0x4A7734: over_op_func (backover.c:743) ==2454== by 0x45931F: fe_op_delete (delete.c:174) ==2454== by 0x45904C: do_delete (delete.c:95) ==2454== by 0x4407E2: connection_operation (connection.c:1155) ==2454== Address 0xa23cc88 is 8 bytes inside a block of size 758 free'd ==2454== at 0x4C27D4E: free (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so) ==2454== by 0x555F5B: syncprov_free_syncop (syncprov.c:814) ==2454== by 0x555FE5: syncprov_drop_psearch (syncprov.c:1109) ==2454== by 0x556141: syncprov_op_abandon (syncprov.c:1158) ==2454== by 0x45E0A6: fe_op_abandon (abandon.c:136) ==2454== by 0x43EBFB: connection_abandon (connection.c:747) ==2454== by 0x4403B8: connection_closing (connection.c:820) ==2454== by 0x440EBA: connection_read_thread (connection.c:1476) ==2454== by 0x573917: ldap_int_thread_pool_wrapper (tpool.c:688) ==2454== by 0x59BFB4F: start_thread (pthread_create.c:304) ==2454== by 0x8039A7C: clone (clone.S:112) ==2454== ==2454== Invalid read of size 8 ==2454== at 0x450CD1: slap_send_ldap_result (result.c:846) ==2454== by 0x5572BB: syncprov_db_close (syncprov.c:3178) ==2454== by 0x4A6B5A: overlay_remove_cb (backover.c:1189) ==2454== by 0x44F93A: slap_cleanup_play (result.c:525) ==2454== by 0x44FD99: send_ldap_response (result.c:717) ==2454== by 0x4508E5: slap_send_ldap_result (result.c:844) ==2454== by 0x42F7C4: config_back_delete (bconfig.c:6481) ==2454== by 0x4A75F2: overlay_op_walk (backover.c:691) ==2454== by 0x4A7734: over_op_func (backover.c:743) ==2454== by 0x45931F: fe_op_delete (delete.c:174) ==2454== by 0x45904C: do_delete (delete.c:95) ==2454== by 0x4407E2: connection_operation (connection.c:1155) ==2454== Address 0xa23cc80 is 0 bytes inside a block of size 758 free'd ==2454== at 0x4C27D4E: free (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so) ==2454== by 0x555F5B: syncprov_free_syncop (syncprov.c:814) ==2454== by 0x555FE5: syncprov_drop_psearch (syncprov.c:1109) ==2454== by 0x556141: syncprov_op_abandon (syncprov.c:1158) ==2454== by 0x45E0A6: fe_op_abandon (abandon.c:136) ==2454== by 0x43EBFB: connection_abandon (connection.c:747) ==2454== by 0x4403B8: connection_closing (connection.c:820) ==2454== by 0x440EBA: connection_read_thread (connection.c:1476) ==2454== by 0x573917: ldap_int_thread_pool_wrapper (tpool.c:688) ==2454== by 0x59BFB4F: start_thread (pthread_create.c:304) ==2454== by 0x8039A7C: clone (clone.S:112) ==2454== ==2454== Invalid read of size 1 ==2454== at 0x7FA4CBA: vfprintf (vfprintf.c:1623) ==2454== by 0x7FCB6A1: vsnprintf (vsnprintf.c:120) ==2454== by 0x59D492: lutil_debug (debug.c:67) ==2454== by 0x450D03: slap_send_ldap_result (result.c:846) ==2454== by 0x5572BB: syncprov_db_close (syncprov.c:3178) ==2454== by 0x4A6B5A: overlay_remove_cb (backover.c:1189) ==2454== by 0x44F93A: slap_cleanup_play (result.c:525) ==2454== by 0x44FD99: send_ldap_response (result.c:717) ==2454== by 0x4508E5: slap_send_ldap_result (result.c:844) ==2454== by 0x42F7C4: config_back_delete (bconfig.c:6481) ==2454== by 0x4A75F2: overlay_op_walk (backover.c:691) ==2454== by 0x4A7734: over_op_func (backover.c:743) ==2454== Address 0xa23ce38 is 440 bytes inside a block of size 758 free'd ==2454== at 0x4C27D4E: free (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so) ==2454== by 0x555F5B: syncprov_free_syncop (syncprov.c:814) ==2454== by 0x555FE5: syncprov_drop_psearch (syncprov.c:1109) ==2454== by 0x556141: syncprov_op_abandon (syncprov.c:1158) ==2454== by 0x45E0A6: fe_op_abandon (abandon.c:136) ==2454== by 0x43EBFB: connection_abandon (connection.c:747) ==2454== by 0x4403B8: connection_closing (connection.c:820) ==2454== by 0x440EBA: connection_read_thread (connection.c:1476) ==2454== by 0x573917: ldap_int_thread_pool_wrapper (tpool.c:688) ==2454== by 0x59BFB4F: start_thread (pthread_create.c:304) ==2454== by 0x8039A7C: clone (clone.S:112) ==2454== ==2454== Invalid read of size 1 ==2454== at 0x7FD4480: _IO_default_xsputn (genops.c:480) ==2454== by 0x7FA4B82: vfprintf (vfprintf.c:1623) ==2454== by 0x7FCB6A1: vsnprintf (vsnprintf.c:120) ==2454== by 0x59D492: lutil_debug (debug.c:67) ==2454== by 0x450D03: slap_send_ldap_result (result.c:846) ==2454== by 0x5572BB: syncprov_db_close (syncprov.c:3178) ==2454== by 0x4A6B5A: overlay_remove_cb (backover.c:1189) ==2454== by 0x44F93A: slap_cleanup_play (result.c:525) ==2454== by 0x44FD99: send_ldap_response (result.c:717) ==2454== by 0x4508E5: slap_send_ldap_result (result.c:844) ==2454== by 0x42F7C4: config_back_delete (bconfig.c:6481) ==2454== by 0x4A75F2: overlay_op_walk (backover.c:691) ==2454== Address 0xa23ce38 is 440 bytes inside a block of size 758 free'd ==2454== at 0x4C27D4E: free (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so) ==2454== by 0x555F5B: syncprov_free_syncop (syncprov.c:814) ==2454== by 0x555FE5: syncprov_drop_psearch (syncprov.c:1109) ==2454== by 0x556141: syncprov_op_abandon (syncprov.c:1158) ==2454== by 0x45E0A6: fe_op_abandon (abandon.c:136) ==2454== by 0x43EBFB: connection_abandon (connection.c:747) ==2454== by 0x4403B8: connection_closing (connection.c:820) ==2454== by 0x440EBA: connection_read_thread (connection.c:1476) ==2454== by 0x573917: ldap_int_thread_pool_wrapper (tpool.c:688) ==2454== by 0x59BFB4F: start_thread (pthread_create.c:304) ==2454== by 0x8039A7C: clone (clone.S:112) ==2454== ==2454== Invalid read of size 1 ==2454== at 0x7FD4492: _IO_default_xsputn (genops.c:479) ==2454== by 0x7FA4B82: vfprintf (vfprintf.c:1623) ==2454== by 0x7FCB6A1: vsnprintf (vsnprintf.c:120) ==2454== by 0x59D492: lutil_debug (debug.c:67) ==2454== by 0x450D03: slap_send_ldap_result (result.c:846) ==2454== by 0x5572BB: syncprov_db_close (syncprov.c:3178) ==2454== by 0x4A6B5A: overlay_remove_cb (backover.c:1189) ==2454== by 0x44F93A: slap_cleanup_play (result.c:525) ==2454== by 0x44FD99: send_ldap_response (result.c:717) ==2454== by 0x4508E5: slap_send_ldap_result (result.c:844) ==2454== by 0x42F7C4: config_back_delete (bconfig.c:6481) ==2454== by 0x4A75F2: overlay_op_walk (backover.c:691) ==2454== Address 0xa23ce3a is 442 bytes inside a block of size 758 free'd ==2454== at 0x4C27D4E: free (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so) ==2454== by 0x555F5B: syncprov_free_syncop (syncprov.c:814) ==2454== by 0x555FE5: syncprov_drop_psearch (syncprov.c:1109) ==2454== by 0x556141: syncprov_op_abandon (syncprov.c:1158) ==2454== by 0x45E0A6: fe_op_abandon (abandon.c:136) ==2454== by 0x43EBFB: connection_abandon (connection.c:747) ==2454== by 0x4403B8: connection_closing (connection.c:820) ==2454== by 0x440EBA: connection_read_thread (connection.c:1476) ==2454== by 0x573917: ldap_int_thread_pool_wrapper (tpool.c:688) ==2454== by 0x59BFB4F: start_thread (pthread_create.c:304) ==2454== by 0x8039A7C: clone (clone.S:112) ==2454== ==2454== Invalid read of size 8 ==2454== at 0x5572BC: syncprov_db_close (syncprov.c:3179) ==2454== by 0x4A6B5A: overlay_remove_cb (backover.c:1189) ==2454== by 0x44F93A: slap_cleanup_play (result.c:525) ==2454== by 0x44FD99: send_ldap_response (result.c:717) ==2454== by 0x4508E5: slap_send_ldap_result (result.c:844) ==2454== by 0x42F7C4: config_back_delete (bconfig.c:6481) ==2454== by 0x4A75F2: overlay_op_walk (backover.c:691) ==2454== by 0x4A7734: over_op_func (backover.c:743) ==2454== by 0x45931F: fe_op_delete (delete.c:174) ==2454== by 0x45904C: do_delete (delete.c:95) ==2454== by 0x4407E2: connection_operation (connection.c:1155) ==2454== by 0x440C1D: connection_read_thread (connection.c:1291) ==2454== Address 0xa23cbc0 is 0 bytes inside a block of size 128 free'd ==2454== at 0x4C27D4E: free (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so) ==2454== by 0x555FE5: syncprov_drop_psearch (syncprov.c:1109) ==2454== by 0x556141: syncprov_op_abandon (syncprov.c:1158) ==2454== by 0x45E0A6: fe_op_abandon (abandon.c:136) ==2454== by 0x43EBFB: connection_abandon (connection.c:747) ==2454== by 0x4403B8: connection_closing (connection.c:820) ==2454== by 0x440EBA: connection_read_thread (connection.c:1476) ==2454== by 0x573917: ldap_int_thread_pool_wrapper (tpool.c:688) ==2454== by 0x59BFB4F: start_thread (pthread_create.c:304) ==2454== by 0x8039A7C: clone (clone.S:112) ==2454== ==2454== Invalid read of size 1 ==2454== at 0x555F78: syncprov_drop_psearch (syncprov.c:1099) ==2454== by 0x5572C8: syncprov_db_close (syncprov.c:3180) ==2454== by 0x4A6B5A: overlay_remove_cb (backover.c:1189) ==2454== by 0x44F93A: slap_cleanup_play (result.c:525) ==2454== by 0x44FD99: send_ldap_response (result.c:717) ==2454== by 0x4508E5: slap_send_ldap_result (result.c:844) ==2454== by 0x42F7C4: config_back_delete (bconfig.c:6481) ==2454== by 0x4A75F2: overlay_op_walk (backover.c:691) ==2454== by 0x4A7734: over_op_func (backover.c:743) ==2454== by 0x45931F: fe_op_delete (delete.c:174) ==2454== by 0x45904C: do_delete (delete.c:95) ==2454== by 0x4407E2: connection_operation (connection.c:1155) ==2454== Address 0xa23cc00 is 64 bytes inside a block of size 128 free'd ==2454== at 0x4C27D4E: free (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so) ==2454== by 0x555FE5: syncprov_drop_psearch (syncprov.c:1109) ==2454== by 0x556141: syncprov_op_abandon (syncprov.c:1158) ==2454== by 0x45E0A6: fe_op_abandon (abandon.c:136) ==2454== by 0x43EBFB: connection_abandon (connection.c:747) ==2454== by 0x4403B8: connection_closing (connection.c:820) ==2454== by 0x440EBA: connection_read_thread (connection.c:1476) ==2454== by 0x573917: ldap_int_thread_pool_wrapper (tpool.c:688) ==2454== by 0x59BFB4F: start_thread (pthread_create.c:304) ==2454== by 0x8039A7C: clone (clone.S:112) ==2454== ==2454== Invalid read of size 8 ==2454== at 0x555F86: syncprov_drop_psearch (syncprov.c:1102) ==2454== by 0x5572C8: syncprov_db_close (syncprov.c:3180) ==2454== by 0x4A6B5A: overlay_remove_cb (backover.c:1189) ==2454== by 0x44F93A: slap_cleanup_play (result.c:525) ==2454== by 0x44FD99: send_ldap_response (result.c:717) ==2454== by 0x4508E5: slap_send_ldap_result (result.c:844) ==2454== by 0x42F7C4: config_back_delete (bconfig.c:6481) ==2454== by 0x4A75F2: overlay_op_walk (backover.c:691) ==2454== by 0x4A7734: over_op_func (backover.c:743) ==2454== by 0x45931F: fe_op_delete (delete.c:174) ==2454== by 0x45904C: do_delete (delete.c:95) ==2454== by 0x4407E2: connection_operation (connection.c:1155) ==2454== Address 0xa23cbe0 is 32 bytes inside a block of size 128 free'd ==2454== at 0x4C27D4E: free (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so) ==2454== by 0x555FE5: syncprov_drop_psearch (syncprov.c:1109) ==2454== by 0x556141: syncprov_op_abandon (syncprov.c:1158) ==2454== by 0x45E0A6: fe_op_abandon (abandon.c:136) ==2454== by 0x43EBFB: connection_abandon (connection.c:747) ==2454== by 0x4403B8: connection_closing (connection.c:820) ==2454== by 0x440EBA: connection_read_thread (connection.c:1476) ==2454== by 0x573917: ldap_int_thread_pool_wrapper (tpool.c:688) ==2454== by 0x59BFB4F: start_thread (pthread_create.c:304) ==2454== by 0x8039A7C: clone (clone.S:112) ==2454== ==2454== Invalid read of size 8 ==2454== at 0x555F8A: syncprov_drop_psearch (syncprov.c:1102) ==2454== by 0x5572C8: syncprov_db_close (syncprov.c:3180) ==2454== by 0x4A6B5A: overlay_remove_cb (backover.c:1189) ==2454== by 0x44F93A: slap_cleanup_play (result.c:525) ==2454== by 0x44FD99: send_ldap_response (result.c:717) ==2454== by 0x4508E5: slap_send_ldap_result (result.c:844) ==2454== by 0x42F7C4: config_back_delete (bconfig.c:6481) ==2454== by 0x4A75F2: overlay_op_walk (backover.c:691) ==2454== by 0x4A7734: over_op_func (backover.c:743) ==2454== by 0x45931F: fe_op_delete (delete.c:174) ==2454== by 0x45904C: do_delete (delete.c:95) ==2454== by 0x4407E2: connection_operation (connection.c:1155) ==2454== Address 0xa23cc80 is 0 bytes inside a block of size 758 free'd ==2454== at 0x4C27D4E: free (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so) ==2454== by 0x555F5B: syncprov_free_syncop (syncprov.c:814) ==2454== by 0x555FE5: syncprov_drop_psearch (syncprov.c:1109) ==2454== by 0x556141: syncprov_op_abandon (syncprov.c:1158) ==2454== by 0x45E0A6: fe_op_abandon (abandon.c:136) ==2454== by 0x43EBFB: connection_abandon (connection.c:747) ==2454== by 0x4403B8: connection_closing (connection.c:820) ==2454== by 0x440EBA: connection_read_thread (connection.c:1476) ==2454== by 0x573917: ldap_int_thread_pool_wrapper (tpool.c:688) ==2454== by 0x59BFB4F: start_thread (pthread_create.c:304) ==2454== by 0x8039A7C: clone (clone.S:112) ==2454== ==2454== Invalid read of size 8 ==2454== at 0x555F8D: syncprov_drop_psearch (syncprov.c:1102) ==2454== by 0x5572C8: syncprov_db_close (syncprov.c:3180) ==2454== by 0x4A6B5A: overlay_remove_cb (backover.c:1189) ==2454== by 0x44F93A: slap_cleanup_play (result.c:525) ==2454== by 0x44FD99: send_ldap_response (result.c:717) ==2454== by 0x4508E5: slap_send_ldap_result (result.c:844) ==2454== by 0x42F7C4: config_back_delete (bconfig.c:6481) ==2454== by 0x4A75F2: overlay_op_walk (backover.c:691) ==2454== by 0x4A7734: over_op_func (backover.c:743) ==2454== by 0x45931F: fe_op_delete (delete.c:174) ==2454== by 0x45904C: do_delete (delete.c:95) ==2454== by 0x4407E2: connection_operation (connection.c:1155) ==2454== Address 0xa23ce00 is 384 bytes inside a block of size 758 free'd ==2454== at 0x4C27D4E: free (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so) ==2454== by 0x555F5B: syncprov_free_syncop (syncprov.c:814) ==2454== by 0x555FE5: syncprov_drop_psearch (syncprov.c:1109) ==2454== by 0x556141: syncprov_op_abandon (syncprov.c:1158) ==2454== by 0x45E0A6: fe_op_abandon (abandon.c:136) ==2454== by 0x43EBFB: connection_abandon (connection.c:747) ==2454== by 0x4403B8: connection_closing (connection.c:820) ==2454== by 0x440EBA: connection_read_thread (connection.c:1476) ==2454== by 0x573917: ldap_int_thread_pool_wrapper (tpool.c:688) ==2454== by 0x59BFB4F: start_thread (pthread_create.c:304) ==2454== by 0x8039A7C: clone (clone.S:112) ==2454== ==2454== Invalid read of size 8 ==2454== at 0x555FBB: syncprov_drop_psearch (syncprov.c:1104) ==2454== by 0x5572C8: syncprov_db_close (syncprov.c:3180) ==2454== by 0x4A6B5A: overlay_remove_cb (backover.c:1189) ==2454== by 0x44F93A: slap_cleanup_play (result.c:525) ==2454== by 0x44FD99: send_ldap_response (result.c:717) ==2454== by 0x4508E5: slap_send_ldap_result (result.c:844) ==2454== by 0x42F7C4: config_back_delete (bconfig.c:6481) ==2454== by 0x4A75F2: overlay_op_walk (backover.c:691) ==2454== by 0x4A7734: over_op_func (backover.c:743) ==2454== by 0x45931F: fe_op_delete (delete.c:174) ==2454== by 0x45904C: do_delete (delete.c:95) ==2454== by 0x4407E2: connection_operation (connection.c:1155) ==2454== Address 0x168 is not stack'd, malloc'd or (recently) free'd ==2454== ==2454== ==2454== Process terminating with default action of signal 11 (SIGSEGV) ==2454== Access not within mapped region at address 0x168 ==2454== at 0x555FBB: syncprov_drop_psearch (syncprov.c:1104) ==2454== by 0x5572C8: syncprov_db_close (syncprov.c:3180) ==2454== by 0x4A6B5A: overlay_remove_cb (backover.c:1189) ==2454== by 0x44F93A: slap_cleanup_play (result.c:525) ==2454== by 0x44FD99: send_ldap_response (result.c:717) ==2454== by 0x4508E5: slap_send_ldap_result (result.c:844) ==2454== by 0x42F7C4: config_back_delete (bconfig.c:6481) ==2454== by 0x4A75F2: overlay_op_walk (backover.c:691) ==2454== by 0x4A7734: over_op_func (backover.c:743) ==2454== by 0x45931F: fe_op_delete (delete.c:174) ==2454== by 0x45904C: do_delete (delete.c:95) ==2454== by 0x4407E2: connection_operation (connection.c:1155) ==2454== If you believe this happened as a result of a stack ==2454== overflow in your program's main thread (unlikely but ==2454== possible), you can try to increase the size of the ==2454== main thread stack using the --main-stacksize= flag. ==2454== The main thread stack size used in this run was 8388608. ==2454== ==2454== HEAP SUMMARY: ==2454== in use at exit: 6,002,487 bytes in 13,317 blocks ==2454== total heap usage: 22,504 allocs, 9,187 frees, 8,818,779 bytes allocated ==2454== ==2454== LEAK SUMMARY: ==2454== definitely lost: 0 bytes in 0 blocks ==2454== indirectly lost: 0 bytes in 0 blocks ==2454== possibly lost: 1,152 bytes in 4 blocks ==2454== still reachable: 6,001,335 bytes in 13,313 blocks ==2454== suppressed: 0 bytes in 0 blocks ==2454== Rerun with --leak-check=full to see details of leaked memory ==2454== ==2454== For counts of detected and suppressed errors, rerun with: -v ==2454== ERROR SUMMARY: 42 errors from 16 contexts (suppressed: 31 from 9) ~ ~

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Re: (ITS#7638) Handle connection loss in SQL backend
by michael＠stroeder.com 07 Jul '13

07 Jul '13

This is a cryptographically signed message in MIME format. --------------ms060507090607040908080102 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: quoted-printable pierre(a)reactos.org wrote: > With this patch, before preparing any req on the given connection handl= e, the > backend will first try to check whether the connection is active by iss= ue a > dummy query. In case it's not, it will close the previous connection an= d open a > new one. And then, will prepare the req on the connection link. > > I made this choice of developement because, preparing statement, execut= ing it > and then, only looking whether it fails to re-submit would have been mo= re > complex, since it would have required to start over the whole process f= or the > query (statement preparation and such) while preparation & execution ar= en't not > in the same function. Hmm, so there's an extra dummy query for each real query. If the SQL DB i= s=20 connected over network this means a synchronous extra round trip for each= query. Ciao, Michael. --------------ms060507090607040908080102 Content-Type: application/pkcs7-signature; name="smime.p7s" Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="smime.p7s" Content-Description: S/MIME Cryptographic Signature MIAGCSqGSIb3DQEHAqCAMIACAQExCzAJBgUrDgMCGgUAMIAGCSqGSIb3DQEHAQAAoIIFfzCC BXswggNjoAMCAQICAwxOfTANBgkqhkiG9w0BAQUFADB5MRAwDgYDVQQKEwdSb290IENBMR4w HAYDVQQLExVodHRwOi8vd3d3LmNhY2VydC5vcmcxIjAgBgNVBAMTGUNBIENlcnQgU2lnbmlu ZyBBdXRob3JpdHkxITAfBgkqhkiG9w0BCQEWEnN1cHBvcnRAY2FjZXJ0Lm9yZzAeFw0xMjEw MDIyMDE3MDlaFw0xNDEwMDIyMDE3MDlaMD8xGDAWBgNVBAMUD01pY2hhZWwgU3Ry9mRlcjEj MCEGCSqGSIb3DQEJARYUbWljaGFlbEBzdHJvZWRlci5jb20wggEiMA0GCSqGSIb3DQEBAQUA A4IBDwAwggEKAoIBAQDo2SKth5GhtaDrCyfGtyUG+/hAAa/J52L0NFN4SSRvTtdGf9HfWwwd NCtgae0TVGWk2lKDbXA9d5vmyIiRhuwxd90H6FLErhRBeB9G67qtw87E8WUoXt2DwPQEUTWV hqHpPadlmgFw3+i3TGQQTe3O3W9MMMd4GJNhObem2VGRuCD37OXnzBksTcq0FPJgcWAhe3d/ 0ItOkNWBqgq8Mf3p7WFBhaQ0a27BC/mKtH8fI3kPcS305imPRja69Msq3EwUZBc9ToVp6FRQ NYKjfOBybDUzVkmRZl3H8xutQP2w8Zxb8m5f7Q1BfLLrIFScfYvIDgOERxTCd4lab8+/09XH AgMBAAGjggFEMIIBQDAMBgNVHRMBAf8EAjAAMFYGCWCGSAGG+EIBDQRJFkdUbyBnZXQgeW91 ciBvd24gY2VydGlmaWNhdGUgZm9yIEZSRUUgaGVhZCBvdmVyIHRvIGh0dHA6Ly93d3cuQ0Fj ZXJ0Lm9yZzAOBgNVHQ8BAf8EBAMCA6gwQAYDVR0lBDkwNwYIKwYBBQUHAwQGCCsGAQUFBwMC BgorBgEEAYI3CgMEBgorBgEEAYI3CgMDBglghkgBhvhCBAEwMgYIKwYBBQUHAQEEJjAkMCIG CCsGAQUFBzABhhZodHRwOi8vb2NzcC5jYWNlcnQub3JnMDEGA1UdHwQqMCgwJqAkoCKGIGh0 dHA6Ly9jcmwuY2FjZXJ0Lm9yZy9yZXZva2UuY3JsMB8GA1UdEQQYMBaBFG1pY2hhZWxAc3Ry b2VkZXIuY29tMA0GCSqGSIb3DQEBBQUAA4ICAQC9ouXq3p/bDWMM4tBKgD3tl4HY5H0eECl8 q9/nqk0UL6YeWkrCiQdrDtNPW7DcGqNYtzdgtzmyTr1GhiAX+igrOjdk/ge5NRcQOpONK/4b zrmpQEcIUyxSSDKLWh211/kcFfxxLEiJ5teF4GL8Fc1qbrLP4+DCvJXWfYaaR5NLjZMqm2VP yKTv3qpXWnGohiRkGTwS/11QM2XCfIGdRsQT9a8mO4m2fn2tGPp2TEIoCLrDDrbGVeDWaOWB OIeTrp4wa3Q4OI6yCptJhEqKvjhV96IBRYgM76nTBqsqnDzwxExAyhhWiUS5DunRHOr/+NyF pUpD4883RBLO0g9kUEGOhtZNF1u+8zEL0YgMGvifAom9JEklLOXZuqj0MThypKs/3d/OyOQb 4gURnu6oZwcKZ7LskytWnlRKUxF6o0A8grtmyKkqe14TS7cQbg0NTaIYXPkHR+dfFmb3uEqn BBjvpJXFcEtWI2lQXC/ET+au991pK797ExBOmpQwjIn3SjiW80vw/UoL6DMvqY/6JhVhyNTP MJ2W5AX5kc27DIbVtVGZs8J4AYhuNALJUq9N9Ka7rPRj3RcYDrfehDLOkM5iMnarpmtuOpLK d1SvZhqj/0N/JWGIDpPSTkTFOPP6ZN9I9Rqyf+9NGqb2sjo4DkIiZcHxt735/GJLwus5KLBl 2DGCA6EwggOdAgEBMIGAMHkxEDAOBgNVBAoTB1Jvb3QgQ0ExHjAcBgNVBAsTFWh0dHA6Ly93 d3cuY2FjZXJ0Lm9yZzEiMCAGA1UEAxMZQ0EgQ2VydCBTaWduaW5nIEF1dGhvcml0eTEhMB8G CSqGSIb3DQEJARYSc3VwcG9ydEBjYWNlcnQub3JnAgMMTn0wCQYFKw4DAhoFAKCCAfUwGAYJ KoZIhvcNAQkDMQsGCSqGSIb3DQEHATAcBgkqhkiG9w0BCQUxDxcNMTMwNzA3MTIzMzAwWjAj BgkqhkiG9w0BCQQxFgQUcA4tlsdiopKrS2o6P/u/9l6BtaowbAYJKoZIhvcNAQkPMV8wXTAL BglghkgBZQMEASowCwYJYIZIAWUDBAECMAoGCCqGSIb3DQMHMA4GCCqGSIb3DQMCAgIAgDAN BggqhkiG9w0DAgIBQDAHBgUrDgMCBzANBggqhkiG9w0DAgIBKDCBkQYJKwYBBAGCNxAEMYGD MIGAMHkxEDAOBgNVBAoTB1Jvb3QgQ0ExHjAcBgNVBAsTFWh0dHA6Ly93d3cuY2FjZXJ0Lm9y ZzEiMCAGA1UEAxMZQ0EgQ2VydCBTaWduaW5nIEF1dGhvcml0eTEhMB8GCSqGSIb3DQEJARYS c3VwcG9ydEBjYWNlcnQub3JnAgMMTn0wgZMGCyqGSIb3DQEJEAILMYGDoIGAMHkxEDAOBgNV BAoTB1Jvb3QgQ0ExHjAcBgNVBAsTFWh0dHA6Ly93d3cuY2FjZXJ0Lm9yZzEiMCAGA1UEAxMZ Q0EgQ2VydCBTaWduaW5nIEF1dGhvcml0eTEhMB8GCSqGSIb3DQEJARYSc3VwcG9ydEBjYWNl cnQub3JnAgMMTn0wDQYJKoZIhvcNAQEBBQAEggEAVQZMpxErjJaK7BfN3lo+Q0Jf4cJRZ3Y/ hutq+P9aUTxJB1pOwjxle8MZ0H0/TbJ5XJu5Mtc/fzc3DcKMH+EDgyM8Jt/z5bqY1SRmVBNA U8ZZMxyhaBDpt4wIl1JftEkrn87iLXD5H5uxsE70ohKSOKIt0m+500tuvWxGtlrQPV4Ufilf a/jQU3G9Td04y4T4eq6ql39AkZPYR88SyJC1jjKhPPzRb/iWvvUzsJNpe/LSgd+ujdpIceY7 rM0PS8bPMZUCtS5TS9f+QT//tb7YI5r/a5jlP3nTeTRiQjMBLMb2EU2+q0fA6PcsQ0Hhr3TU OeNbOIlyfS6NrRu5pjupkgAAAAAAAA== --------------ms060507090607040908080102--

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(ITS#7638) Handle connection loss in SQL backend
by pierre＠reactos.org 07 Jul '13

07 Jul '13

Full_Name: Pierre Schweitzer Version: HEAD OS: Ubuntu URL: http://fc.isima.fr/~schweitz/schweitz/0001-In-the-SQL-backend-add-code-to-h… Submission from: (NULL) (90.27.237.49) Hi, here is a patch to handle a possible connection loss to DBMS for the SQL backend. Right now, in case of connection loss, slapd just denied any entry lookup with an error 80 (backend error). With this patch, before preparing any req on the given connection handle, the backend will first try to check whether the connection is active by issue a dummy query. In case it's not, it will close the previous connection and open a new one. And then, will prepare the req on the connection link. I made this choice of developement because, preparing statement, executing it and then, only looking whether it fails to re-submit would have been more complex, since it would have required to start over the whole process for the query (statement preparation and such) while preparation & execution aren't not in the same function. This patch has been tested and validated in production on the ReactOS Foundation infrastructure. The attached patch file is derived from OpenLDAP Software. All of the modifications to OpenLDAP Software represented in the following patch(es) were developed by Pierre Schweitzer (pierre(a)reactos.org). I have not assigned rights and/or interest in this work to any party. I, Pierre Schweitzer, hereby place the following 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. Regards, Pierre

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Re: (ITS#7637) Need documentation: LDAP on virtual IP address
by hyc＠symas.com 04 Jul '13

04 Jul '13

Ulrich.Windl(a)rz.uni-regensburg.de wrote: > Full_Name: Ulrich Windl > Version: 2.4.26 > OS: Linux (SLES11 SP2) > URL: ftp://ftp.openldap.org/incoming/ > Submission from: (NULL) (132.199.152.129) > > > I was able to set up a master LDAP server and a replication consumer using the > physical host names and TLS. However when I tried to bind slapd on a virtual IP > address ("interface alias"), I never got slapd working (even though I fixed the > certificates for TLS, of course). Dynamic configuration ("cn=config") seems to > make things very difficult, because slapd ends in a state where _nobody_ can > make configuration changes. Use the openldap-technical mailing list to ask for configuration help. You talk about IP addresses and yet in your quoted text below you are using hostnames. Be consistent when you post your question to the mailing list otherwise no one will understand what you're asking for. Closing this ITS. > It seems slapd tried to use the wrong URI (using the physical host where nobody > is listening): > slapd[10036]: slap_client_connect: URI=ldap://phost.domain.org/ Error, > ldap_start_tls failed (-1) > slapd[10036]: do_syncrepl: rid=002 rc -1 retrying > > slapd is listening on ldap://vhost.domain.org/ however. > > I read lots of procedures using Google, but could not find the solution for this > problem. Thus I suggest to add documentation how to configure such a scenario: > > 1) Set up an LDAP Master server that provides service on a specific IP address > using TLS > 2) Set up a replication consumer that provides service on a specific IP address > using TLS also > 3) The replication consumer should use the address where the master server > listens for replication > > It sounds like an every-day setup, but I failed multiple times, thus the request > for documentation. > > -- -- Howard Chu CTO, Symas Corp. http://www.symas.com Director, Highland Sun http://highlandsun.com/hyc/ Chief Architect, OpenLDAP http://www.openldap.org/project/

1 0

(ITS#7637) Need documentation: LDAP on virtual IP address
by Ulrich.Windl＠rz.uni-regensburg.de 04 Jul '13

04 Jul '13

Full_Name: Ulrich Windl Version: 2.4.26 OS: Linux (SLES11 SP2) URL: ftp://ftp.openldap.org/incoming/ Submission from: (NULL) (132.199.152.129) I was able to set up a master LDAP server and a replication consumer using the physical host names and TLS. However when I tried to bind slapd on a virtual IP address ("interface alias"), I never got slapd working (even though I fixed the certificates for TLS, of course). Dynamic configuration ("cn=config") seems to make things very difficult, because slapd ends in a state where _nobody_ can make configuration changes. It seems slapd tried to use the wrong URI (using the physical host where nobody is listening): slapd[10036]: slap_client_connect: URI=ldap://phost.domain.org/ Error, ldap_start_tls failed (-1) slapd[10036]: do_syncrepl: rid=002 rc -1 retrying slapd is listening on ldap://vhost.domain.org/ however. I read lots of procedures using Google, but could not find the solution for this problem. Thus I suggest to add documentation how to configure such a scenario: 1) Set up an LDAP Master server that provides service on a specific IP address using TLS 2) Set up a replication consumer that provides service on a specific IP address using TLS also 3) The replication consumer should use the address where the master server listens for replication It sounds like an every-day setup, but I failed multiple times, thus the request for documentation.

1 0

Re: (ITS#7636) slapd crash when multi-master replication (syncrepl) enabled
by hyc＠symas.com 03 Jul '13

03 Jul '13

kb9vqf(a)pearsoncomputing.net wrote: >> kb9vqf(a)pearsoncomputing.net wrote: >>> Full_Name: Timothy Pearson >>> Version: 2.4.31 >>> OS: Debian Wheezy >>> URL: ftp://ftp.openldap.org/incoming/ >>> Submission from: (NULL) (131.156.2.26) >>> >>> >>> The setup: >>> Multi-master syncrepl on two servers >>> Identical hardware and software between servers >>> Self-signed TLS using common (private) CA certificate >>> >>> The problem: >>> slapd on one server crashes repeatably within a minute of slapd > starting on the >>> other server. slapd works reliably if and only if the other server is not >>> running a slapd process. >> >> 1) 2.4.31 is ancient. Current is 2.4.35. Please provide a backtrace > against a >> current OpenLDAP release. >> >> 2) Your backtrace shows a crash in a slapi plugin. If the bug is in your > plugin there's nothing we can do about it. >> >> 3) Don't touch the individual files inside the slapd configuration > database. >> Use "slapcat -n0". > > Thank you for your prompt response. In the backtrace I posted, which > portion suggests that the crash occurred in a plugin? I would have > expected to see at least one frame in something other than > ../../../../servers/slapd. Program received signal SIGABRT, Aborted. [Switching to Thread 0x7fffe356c700 (LWP 10433)] 0x00007ffff5a32475 in *__GI_raise (sig=<optimized out>) at ../nptl/sysdeps/unix/sysv/linux/raise.c:64 64 ../nptl/sysdeps/unix/sysv/linux/raise.c: No such file or directory. (gdb) bt #0 0x00007ffff5a32475 in *__GI_raise (sig=<optimized out>) at ../nptl/sysdeps/unix/sysv/linux/raise.c:64 #1 0x00007ffff5a356f0 in *__GI_abort () at abort.c:92 #2 0x00007ffff5a6d52b in __libc_message (do_abort=<optimized out>, fmt=<optimized out>) at ../sysdeps/unix/sysv/linux/libc_fatal.c:189 #3 0x00007ffff5a76d76 in malloc_printerr (action=3, str=0x7ffff5b4f170 "munmap_chunk(): invalid pointer", ptr=<optimized out>) at malloc.c:6283 #4 0x00007ffff63d214a in slapi_op_search_callback (op=0x7fffe3569fd0, rs=<optimized out>, prc=<optimized out>) at ../../../../../servers/slapd/slapi/slapi_overlay.c:313 #5 slapi_op_search_callback (op=0x7fffe3569fd0, rs=<optimized out>, prc=<optimized out>) at ../../../../../servers/slapd/slapi/slapi_overlay.c:296 #6 0x00007ffff63d304f in slapi_op_func (rs=0x7fffe3569f60, op=<optimized out>) at ../../../../../servers/slapd/slapi/slapi_overlay.c:631 #7 slapi_op_func (op=0x7fffe3569fd0, rs=0x7fffe3569f60) at ../../../../../servers/slapd/slapi/slapi_overlay.c:556 The slapi_* functions would not be present in the stack trace unless you had configured a slapi plugin on this database. -- -- 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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