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/ > Cyrus Wiki/FAQ: http://cyrusimap.web.cmu.edu/twiki > List Archives/Info: http://asg.web.cmu.edu/cyrus/mailing-list.html ---- Cyrus Home Page: http://cyrusimap.web.cmu.edu/ Cyrus Wiki/FAQ: http://cyrusimap.web.cmu.edu/twiki List Archives/Info: http://asg.web.cmu.edu/cyrus/mailing-list.html
