Hi all, I have been trying to upgrade my 2.5.10 installation to 3.0.4. I follow the steps detailed on the upgrade page: https://cyrusimap.org/imap/download/upgrade.html When I get to step "7", I try to connect using a mail-client. This appears to work, but I get the following messages in /var/log/messages: Jan 27 11:32:36 mailtest imap[1249]: login: webtest.vm1.antarean.org [10.70.1.102] joost plaintext User logged in SESSIONID=<mailtest-1249-1517049156-1-17981315892217922378> Jan 27 11:32:36 mailtest master[1228]: process type:SERVICE name:imap path:/ usr/libexec/imapd age:0.390s pid:1249 signaled to death by signal 6 (Aborted) Jan 27 11:32:36 mailtest imap[1252]: login: webtest.vm1.antarean.org [10.70.1.102] joost plaintext User logged in SESSIONID=<mailtest-1252-1517049156-1-5994302304265644280> Jan 27 11:32:36 mailtest master[1228]: process type:SERVICE name:imap path:/ usr/libexec/imapd age:0.036s pid:1252 signaled to death by signal 6 (Aborted) (This continues until I kill the client) When I connect using "cyradm", I do not see any of the mail folders. (even though they were all copied across) When I try the "reconstruct" command from step 8, I get: # reconstruct -V max *** Error in `reconstruct': corrupted double-linked list: 0x000055da30ac7200 *** ======= Backtrace: ========= /lib64/libc.so.6(+0x77a6b)[0x7f13ec42da6b] /lib64/libc.so.6(+0x7f6de)[0x7f13ec4356de] /lib64/libc.so.6(+0x829e0)[0x7f13ec4389e0] /lib64/libc.so.6(realloc+0x176)[0x7f13ec439e36] /usr/lib64/libcyrus_min.so.0(xrealloc+0xe)[0x7f13ecaa01ce] /usr/lib64/libcyrus_min.so.0(_buf_ensure+0x8c)[0x7f13eca9bf3c] /usr/lib64/libcyrus_min.so.0(buf_setmap+0x4b)[0x7f13eca9c37b] /usr/lib64/libcyrus.so.0(+0x87aa1)[0x7f13ec7ecaa1] /usr/lib64/libcyrus.so.0(+0x88ce1)[0x7f13ec7edce1] /usr/lib64/libcyrus_imap.so.0(+0x4deef)[0x7f13ecf2beef] /usr/lib64/libcyrus_imap.so.0(+0x4e7dc)[0x7f13ecf2c7dc] /usr/lib64/libcyrus_imap.so.0(mboxlist_findallmulti+0xa6)[0x7f13ecf31d96] /usr/lib64/libcyrus_imap.so.0(mboxlist_findall+0x7a)[0x7f13ecf31e6a] reconstruct(+0x264c)[0x55da3088c64c] /lib64/libc.so.6(__libc_start_main+0xf1)[0x7f13ec3d6541] reconstruct(+0x278a)[0x55da3088c78a] The only thing I can think of is that my current mailserver used has "unixhierarch = no" and the new one defaults to "yes". But changing the setting to "no" in 3.0.4 doesn't resolve this issue either. Is there anything else I can try? The 3.0.4 installation is purely for test. Eg. I have no problems wiping it and starting over. The 2.5.10 is production and I am not willing to risk loosing a single email. Many thanks, Joost ---- Cyrus Home Page: http://www.cyrusimap.org/ List Archives/Info: http://lists.andrew.cmu.edu/pipermail/info-cyrus/ To Unsubscribe: https://lists.andrew.cmu.edu/mailman/listinfo/info-cyrus