Restoring a user's mailbox yesterday resulted in 'doveadm import' panic'ing with an assertion failure and giving a backtrace:

/usr/bin/doveadm import -u <user> mdbox:/maildir/riseup.net/a/<user>/.daily.1/mdbox restored_from_backups/daily1 all doveadm(<user>): Error: Transaction log /maildir/riseup.net/a/<user>/.daily.1/mdbox/mailboxes/INBOX/dbox-Mails/dovecot.index.log: duplicate transac tion log sequence (3) doveadm(<user>): Error: Transaction log /maildir/riseup.net/a/<user>/.daily.1/mdbox/mailboxes/INBOX/dbox-Mails/dovecot.index.log: duplicate transac tion log sequence (3) doveadm(<user>): Panic: file mail-transaction-log-file.c: line 187 (mail_transaction_log_file_add_to_list): assertion failed: ((*p)->hdr.file_se q < file->hdr.file_seq) doveadm(<user>): Error: Raw backtrace: /usr/lib/dovecot/libdovecot.so.0(+0x3fd1a) [0x7f05152bbd1a] -> /usr/lib/dovecot/libdovecot.so.0(default_f atal_handler+0x32) [0x7f05152bbe02] -> /usr/lib/dovecot/libdovecot.so.0(i_error+0) [0x7f051529519f] -> /usr/lib/dovecot/libdovecot-storage.so .0(+0xa596a) [0x7f05159e696a] -> /usr/lib/dovecot/libdovecot-storage.so.0(mail_transaction_log_file_open+0x1f8) [0x7f05159e7bc8] -> /usr/lib/ dovecot/libdovecot-storage.so.0(mail_transaction_log_find_file+0xd0) [0x7f05159e46e0] -> /usr/lib/dovecot/libdovecot-storage.so.0(mail_transa ction_log_view_set+0xcb) [0x7f05159e8bdb] -> /usr/lib/dovecot/libdovecot-storage.so.0(mail_index_sync_map+0xbe) [0x7f05159dff6e] -> /usr/lib/ dovecot/libdovecot-storage.so.0(mail_index_map+0x86) [0x7f05159d1816] -> /usr/lib/dovecot/libdovecot-storage.so.0(+0x9a6da) [0x7f05159db6da] -> /usr/lib/dovecot/libdovecot-storage.so.0(mail_index_sync_begin_to+0x56) [0x7f05159db956] -> /usr/lib/dovecot/libdovecot-storage.so.0(mail_ index_sync_begin+0x1e) [0x7f05159dc21e] -> /usr/lib/dovecot/libdovecot-storage.so.0(mdbox_sync_begin+0x121) [0x7f05159bbb41] -> /usr/lib/dove cot/libdovecot-storage.so.0(mdbox_sync+0x46) [0x7f05159bc1f6] -> /usr/lib/dovecot/libdovecot-storage.so.0(mdbox_storage_sync_init+0x43) [0x7f 05159bc293] -> /usr/lib/dovecot/libdovecot-storage.so.0(mailbox_sync_init+0x31) [0x7f0515974031] -> /usr/lib/dovecot/libdovecot-storage.so.0(mailbox_sync+0x27) [0x7f05159748b7] -> /usr/bin/doveadm(doveadm_mail_iter_init+0x8b) [0x40c9db] -> /usr/bin/doveadm() [0x40c284] -> /usr/bin/doveadm() [0x40a673] -> /usr/bin/doveadm(doveadm_mail_single_user+0x61) [0x40a731] -> /usr/bin/doveadm() [0x40a95d] -> /usr/bin/doveadm(doveadm_mail_try_run+0x141) [0x40ad71] -> /usr/bin/doveadm(main+0x381) [0x4107e1] -> /lib/libc.so.6(__libc_start_main+0xfd) [0x7f0514b2dc4d] -> /usr/bin/doveadm() [0x409e59]

This is with 2.0.15.

Micah

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