ldapdb auxprop configuration
Torsten Schlabach
tschlabach at gmx.net
Sat Jan 3 11:34:26 EST 2009
Hi all!
If I may briefly jump in:
One comment suggested that the problem might be one of the Debian
specific patches! Did you try to build a package without them?
I never found the time ...
Regards,
Torsten
Lars Hanke schrieb:
> _S_eems we're coming closer ...
>
>> 'signaled to death by 11' is a big red flag... your imapd process is
>> seg faulting. It's possibly caused by an old SASL/OpenLDAP reentrant
>> bug (are you running an old version of libldap?).
> Looking at SASL Bug 3032
> <http://bugzilla.andrew.cmu.edu/show_bug.cgi?id=3032> and Debian Bug
> #409495 it looks quite like that. Both bugs are not resolved according
> to the bugtrackers. The install is Lenny current as per today. These are
> the relevant packages:
>
> hermod:/# dpkg -l '*cyrus*' | grep '^ii'
> ii cyrus-admin-2.2 2.2.13-14 Cyrus mail
> system (administration tools)
> ii cyrus-clients-2.2 2.2.13-14+b3 Cyrus mail
> system (test clients)
> ii cyrus-common-2.2 2.2.13-14+b3 Cyrus mail
> system (common files)
> ii cyrus-imapd-2.2 2.2.13-14+b3 Cyrus mail
> system (IMAP support)
> ii libcyrus-imap-perl22 2.2.13-14+b3 Interface
> to Cyrus imap client imclient libr
> hermod:/# dpkg -l '*ldap*' | grep '^ii'
> ii ldap-utils 2.4.11-1 OpenLDAP
> utilities
> ii libldap-2.4-2 2.4.11-1 OpenLDAP
> libraries
> hermod:/# dpkg -l '*sasl*' | grep '^ii'
> ii libsasl2-2 2.1.22.dfsg1-23 Cyrus SASL
> - authentication abstraction libr
> ii libsasl2-modules 2.1.22.dfsg1-23 Cyrus SASL
> - pluggable authentication module
> ii libsasl2-modules-gssapi-mit 2.1.22.dfsg1-23 Cyrus SASL
> - pluggable authentication module
> ii libsasl2-modules-ldap 2.1.22.dfsg1-23 Cyrus SASL
> - pluggable authentication module
> ii sasl2-bin 2.1.22.dfsg1-23 Cyrus SASL
> - administration programs for SASL
>
> The Debian Bugtracker has it that avoiding DIGEST-MD5 would work around
> the bug. So I removed that MECH and eventually replaced it with
> CRAM-MD5, but the SEGFAULT persists.
>> You can specify a debug_command in your imapd.conf to generate a back
>> trace. See:
>> https://langhorst.com/cgi-bin/dwww//usr/share/doc/cyrus21-common/README.Debian.debug.gz
>>
> Okay, if the error is known and open, it's worth the while to create a
> debugging version of probably all the packages. Does anyone know more
> about the current state of the bug? I could supply an OpenVZ Container,
> which readily produces it. ;)
>
> The strace ends in:
>
> 15:42:19.940818 poll([{fd=16, events=POLLIN}], 1, 5000) = 1 ([{fd=16,
> revents=POLLIN}])
> 15:42:19.940883 ioctl(16, FIONREAD, [83]) = 0
> 15:42:19.940917 recvfrom(16,
> "\263\225\205\200\0\1\0\1\0\1\0\0\0013\0016\00216\003172\7in-addr\4a"...,
> 1024, 0, {sa_family=AF_INET, sin_port=htons(53),
> sin_addr=inet_addr("172.16.6.3")}, [16]) = 83
> 15:42:19.940973 close(16) = 0
> 15:42:19.941020 uname({sys="Linux", node="hermod.mgr", ...}) = 0
> 15:42:19.941095 --- SIGSEGV (Segmentation fault) @ 0 (0) ---
>
> So the last thing done successfully is a DNS query for the LDAP server.
> The ltrace is a little more informative. However, it looks like the
> SEGFAULT is somewhere in SASL, probably the thread should continue there ...
>
> 3922 15:46:41.771218 read(0, "dXNlcm5hbWU9ImN5cnVzIixyZWFsbT0i"...,
> 4096) = 354
> 3922 15:46:41.771278 strlen("") = 0
> 3922 15:46:41.771321 strncasecmp(0x7fffc67534d0, 0x46193b, 0, 5, 22) = 0
> 3922 15:46:41.771380 strlen("") = 0
> 3922 15:46:41.771423 strlen("dXNlcm5hbWU9ImN5cnVzIixyZWFsbT0i"...) = 352
> 3922 15:46:41.771470 sasl_decode64(0x7fffc67534d0, 352, 0x7fffc67534d0,
> 21848, 0x7fffc6758a3c) = 0
> 3922 15:46:41.771520 sasl_server_step(0x1f48140, 0x7fffc67534d0, 262,
> 0x7fffc6758a30, 0x7fffc6758a38 <unf
> inished ...>
> 3922 15:46:41.771554 malloc(250) = 0x1f4a260
> 3922 15:46:41.771631 malloc(263) = 0x1f4a260
> 3922 15:46:41.771680 malloc(6) = 0x1f4a370
> 3922 15:46:41.771722 malloc(11) = 0x1f4a390
> 3922 15:46:41.771763 malloc(45) = 0x1f4a3b0
> 3922 15:46:41.771805 malloc(45) = 0x1f4a3f0
> 3922 15:46:41.771847 malloc(10) = 0x1f4a430
> 3922 15:46:41.771891 malloc(4) = 0x1f4a450
> 3922 15:46:41.771933 malloc(16) = 0x1f4a470
> 3922 15:46:41.771975 malloc(33) = 0x1f49b20
> 3922 15:46:41.772018 malloc(1219) = 0x1f4a490
> 3922 15:46:41.772061 memcpy(0x1f48ee1, "cyrus", 5) = 0x1f48ee1
> 3922 15:46:41.772105 strlen("cyrus") = 5
> 3922 15:46:41.772148 strlen("cyrus") = 5
> 3922 15:46:41.772193 strcmp("unix", "unix") = 0
> 3922 15:46:41.772241 strlen("cyrus") = 5
> 3922 15:46:41.772283 memmove(0x6fc420, 0x1f48ee1, 5, 2, 1) = 0x6fc420
> 3922 15:46:41.772333 __ctype_b_loc() =
> 0x7f87be74d6a0
> 3922 15:46:41.772376 __ctype_b_loc() =
> 0x7f87be74d6a0
> 3922 15:46:41.772429 __ctype_b_loc() =
> 0x7f87be74d6a0
> 3922 15:46:41.772472 __ctype_b_loc() =
> 0x7f87be74d6a0
> 3922 15:46:41.772514 __ctype_b_loc() =
> 0x7f87be74d6a0
> 3922 15:46:41.772556 strlen("cyrus") = 5
> 3922 15:46:41.772599 strcpy(0x1f48ee1, "cyrus") = 0x1f48ee1
> 3922 15:46:41.772643 strlen("sasl_") = 5
> 3922 15:46:41.772685 snprintf("\001\200\255\373\377\177", 5102666,
> "\377\377\377\377\377\377\377\377"...) = 27
> 3922 15:46:41.772736 malloc(7) = 0x1f49670
> 3922 15:46:41.772780 strlen("sasl_") = 5
> 3922 15:46:41.772822 snprintf("\001\200\255\373", 5102666,
> "\377\377\377\377\377\377\377\377"...) = 24
> 3922 15:46:41.772871 strcmp("imap_sasl_auxprop_plugin",
> "partition-default") = -1
> 3922 15:46:41.772920 strcmp("sasl_auxprop_plugin",
> "partition-default") = 1
> 3922 15:46:41.772967 strcmp("sasl_auxprop_plugin",
> "sasl_auxprop_plugin") = 0
> 3922 15:46:41.773015 malloc(7) = 0x1f49670
> 3922 15:46:41.773056 malloc(48) = 0x1f49690
> 3922 15:46:41.773482 malloc(8) = 0x1f496d0
> 3922 15:46:41.795036 malloc(4568) = 0x1f8fc10
> 3922 15:46:41.795087 malloc(192) = 0x1f8c020
> 3922 15:46:41.795130 malloc(5) = 0x1f574b0
> 3922 15:46:41.795172 malloc(150) = 0x1f8c0f0
> 3922 15:46:41.795212 malloc(150) = 0x1f8c190
> 3922 15:46:41.795253 malloc(8) = 0x1f55c30
> 3922 15:46:41.795294 malloc(392) = 0x1f8a220
> 3922 15:46:41.795335 malloc(12) = 0x1f5fc10
> 3922 15:46:41.795387 malloc(11) = 0x1f5fc90
> 3922 15:46:41.795435 malloc(336) = 0x1f8a3b0
> 3922 15:46:41.795479 --- SIGSEGV (Segmentation fault) ---
> 3922 15:46:41.796184 +++ killed by SIGSEGV +++
>
>
> ----
> Cyrus Home Page: http://cyrusimap.web.cmu.edu/
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