Hello, i tried to move mails to an alt storage with the following command: doveadm altmove -u user at domain.de mailbox Inbox After that, the imap process produces a core dump (files has not been moved): Maillog: dovecot: imap-login: Login: user=<user at domain.de>, method=PLAIN, rip=X.X.X.X, lip=X.X.X.X, mpid=5393, TLS, session=<83JiHqNdTwCsEAIf> dovecot: imap(user at domain.de): Fatal: master: service(imap): child 5393 killed with signal 11 (core dumped) Version: Dovecot 2.2.18.2 OS: CenotOS6 2.6.32-696.10.2.el6.x86_64 local storage (ext4) #gdb --args /usr/libexec/dovecot/imap -u user at domain.de A1 STATUS INBOX (MESSAGES) Program received signal SIGSEGV, Segmentation fault. 0x00007ffff74b3c9a in __strrchr_sse2 () from /lib64/libc.so.6 (gdb) bt full #0? 0x00007ffff74b3c9a in __strrchr_sse2 () from /lib64/libc.so.6 No symbol table info available. #1? 0x00007ffff7b148cd in sdbox_file_move () from /usr/lib64/dovecot/libdovecot-storage.so.0 No symbol table info available. #2? 0x00007ffff7b18284 in sdbox_sync_begin () from /usr/lib64/dovecot/libdovecot-storage.so.0 No symbol table info available. #3? 0x00007ffff7b18382 in sdbox_sync () from /usr/lib64/dovecot/libdovecot-storage.so.0 No symbol table info available. #4? 0x00007ffff7b18437 in sdbox_storage_sync_init () from /usr/lib64/dovecot/libdovecot-storage.so.0 No symbol table info available. #5? 0x00007ffff7af64b3 in mailbox_sync_init () from /usr/lib64/dovecot/libdovecot-storage.so.0 No symbol table info available. #6? 0x00007ffff7af7d27 in mailbox_sync () from /usr/lib64/dovecot/libdovecot-storage.so.0 No symbol table info available. #7? 0x00007ffff7b62af2 in index_storage_get_status () from /usr/lib64/dovecot/libdovecot-storage.so.0 No symbol table info available. #8? 0x00007ffff67eb32c in ?? () from /usr/lib64/dovecot/lib10_quota_plugin.so No symbol table info available. #9? 0x00007ffff6c021e4 in ?? () from /usr/lib64/dovecot/lib01_acl_plugin.so No symbol table info available. #10 0x00007ffff7af8931 in mailbox_get_status () from /usr/lib64/dovecot/libdovecot-storage.so.0 No symbol table info available. #11 0x000000000041e07a in imap_status_get () No symbol table info available. #12 0x0000000000413629 in cmd_status () No symbol table info available. #13 0x00000000004178ed in command_exec () No symbol table info available. #14 0x00000000004168d0 in ?? () No symbol table info available. #15 0x0000000000416966 in ?? () No symbol table info available. #16 0x0000000000416c5d in client_handle_input () No symbol table info available. #17 0x0000000000416fdf in client_input () No symbol table info available. #18 0x00007ffff7852fbb in io_loop_call_io () from /usr/lib64/dovecot/libdovecot.so.0 No symbol table info available. #19 0x00007ffff785418f in io_loop_handler_run_internal () from /usr/lib64/dovecot/libdovecot.so.0 No symbol table info available. #20 0x00007ffff7853049 in io_loop_handler_run () from /usr/lib64/dovecot/libdovecot.so.0 No symbol table info available. #21 0x00007ffff78530c8 in io_loop_run () from /usr/lib64/dovecot/libdovecot.so.0 No symbol table info available. #22 0x00007ffff77f2043 in master_service_run () from /usr/lib64/dovecot/libdovecot.so.0 No symbol table info available. #23 0x00000000004206c1 in main () No symbol table info available. This is only on folders i have tried to move. best regards, Frank Koch -- -------------- next part -------------- A non-text attachment was scrubbed... Name: fkoch.gif Type: image/gif Size: 13850 bytes Desc: not available URL: <https://dovecot.org/pipermail/dovecot/attachments/20171113/9850c916/attachment-0001.gif> -------------- next part -------------- A non-text attachment was scrubbed... Name: smime.p7s Type: application/pkcs7-signature Size: 3881 bytes Desc: S/MIME Cryptographic Signature URL: <https://dovecot.org/pipermail/dovecot/attachments/20171113/9850c916/attachment-0001.p7s>