Here is backtrace from doveadm force-resync:
gdb -q /usr/bin/doveadm 'core-1362658246-8-11-!usr!bin!doveadm-3939' Reading symbols from /usr/bin/doveadm...Reading symbols from /usr/lib64/debug/usr/bin/doveadm.debug...done. done. [New LWP 3939]
warning: Could not load shared library symbols for linux-vdso.so.1. Do you need "set solib-search-path" or "set sysroot"? [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib64/libthread_db.so.1".
warning: no loadable sections found in added symbol-file system-supplied DSO at 0x3667f202000 Core was generated by `doveadm -v force-resync -u marcin@mejor.pl mailinglists.*'. Program terminated with signal 11, Segmentation fault. #0 rebuild_mailbox_multi (trans=0x428b58d090, view=<optimized out>, rebuild_ctx=0x428b5a0690, ctx=0x428b57a9a0, mbox=<optimized out>) at mdbox-storage-rebuild.c:433 433 map_uid = rec->map_uid; (gdb) bt #0 rebuild_mailbox_multi (trans=0x428b58d090, view=<optimized out>, rebuild_ctx=0x428b5a0690, ctx=0x428b57a9a0, mbox=<optimized out>) at mdbox-storage-rebuild.c:433 #1 rebuild_mailbox (vname=<optimized out>, ctx=0x428b57a9a0, ns=<optimized out>) at mdbox-storage-rebuild.c:546 #2 rebuild_namespace_mailboxes (ns=<optimized out>, ctx=0x428b57a9a0) at mdbox-storage-rebuild.c:577 #3 rebuild_mailboxes (ctx=0x428b57a9a0) at mdbox-storage-rebuild.c:597 #4 mdbox_storage_rebuild_scan (ctx=0x428b57a9a0) at mdbox-storage-rebuild.c:905 #5 mdbox_storage_rebuild_in_context (storage=0x428b52e290, atomic=<optimized out>) at mdbox-storage-rebuild.c:928 #6 0x000003667f13356a in mdbox_sync_begin (mbox=0x428b564a90, flags=MDBOX_SYNC_FLAG_FORCE_REBUILD, atomic=0x428b57ef10, ctx_r=0x3bcda49d568) at mdbox-sync.c:235 #7 0x000003667f133b75 in mdbox_sync (mbox=0x428b564a90, flags=MDBOX_SYNC_FLAG_FORCE_REBUILD) at mdbox-sync.c:319 #8 0x000003667f133c86 in mdbox_storage_sync_init (box=0x428b564a90, flags=(MAILBOX_SYNC_FLAG_FIX_INCONSISTENT | MAILBOX_SYNC_FLAG_FORCE_RESYNC)) at mdbox-sync.c:349 #9 0x000003667f161631 in mailbox_sync_init (box=0x428b564a90, flags=(MAILBOX_SYNC_FLAG_FIX_INCONSISTENT | MAILBOX_SYNC_FLAG_FORCE_RESYNC)) at mail-storage.c:1326 #10 0x000003667f1617b7 in mailbox_sync (box=<optimized out>, flags=<optimized out>) at mail-storage.c:1374 #11 0x0000004289345a33 in cmd_force_resync_box (ctx=0x428b511de0, info=<optimized out>) at doveadm-mail.c:211 #12 cmd_force_resync_run (ctx=0x428b511de0, user=<optimized out>) at doveadm-mail.c:240 #13 0x000000428934566d in doveadm_mail_next_user (error_r=0x3bcda49d6c0, ctx=0x428b511de0, input=<optimized out>) at doveadm-mail.c:311 #14 doveadm_mail_next_user (ctx=0x428b511de0, input=<optimized out>, error_r=0x3bcda49d6c0) at doveadm-mail.c:270 #15 0x000000428934646e in doveadm_mail_cmd (cmd=0x428b511480, argc=4, argv=0x428b50d578) at doveadm-mail.c:520 #16 0x0000004289346a01 in doveadm_mail_try_run (cmd_name=0x428b50d593 "force-resync", argc=4, argv=0x428b50d560) at doveadm-mail.c:579 #17 0x000000428934f4eb in main (argc=4, argv=0x428b50d560) at doveadm.c:391
bt full:
#0 rebuild_mailbox_multi (trans=0x428b58d090, view=<optimized out>,
rebuild_ctx=0x428b5a0690, ctx=0x428b57a9a0, mbox=<optimized out>) at
mdbox-storage-rebuild.c:433
433 map_uid = rec->map_uid;
(gdb) #0 rebuild_mailbox_multi (trans=0x428b58d090, view=<optimized
out>, rebuild_ctx=0x428b5a0690, ctx=0x428b57a9a0, mbox=<optimized out>)
at mdbox-storage-rebuild.c:433
new_seq = 17684
hdr = 0x428b59fae0
data = 0x428b61ea8c
expunged = false
uid = 8877
map_uid = 127994
new_dbox_rec = {map_uid = 127994, save_date = 1362612657}
rec = 0x0
old_seq = <optimized out>
#1 rebuild_mailbox (vname=<optimized out>, ctx=0x428b57a9a0,
ns=<optimized out>) at mdbox-storage-rebuild.c:546
box = 0x428b5ae880
mbox = 0x428b5ae880
rebuild_ctx = 0x428b5a0690
ret = <optimized out>
sync_ctx = 0x428b5a10e0
view = 0x428b5a1ae0
trans = 0x428b58d090
error = <optimized out>
#2 rebuild_namespace_mailboxes (ns=<optimized out>, ctx=0x428b57a9a0)
at mdbox-storage-rebuild.c:577
_data_stack_cur_id = 4
iter = 0x428b585620
info = <optimized out>
ret = 0
#3 rebuild_mailboxes (ctx=0x428b57a9a0) at mdbox-storage-rebuild.c:597
storage = <optimized out>
ns = <optimized out>
#4 mdbox_storage_rebuild_scan (ctx=0x428b57a9a0) at
mdbox-storage-rebuild.c:905
data = 0x428b589e10
data_size = 8
#5 mdbox_storage_rebuild_in_context (storage=0x428b52e290,
atomic=<optimized out>) at mdbox-storage-rebuild.c:928
ctx = 0x5137d1b10001f3fa
ret = 0
#6 0x000003667f13356a in mdbox_sync_begin (mbox=0x428b564a90,
flags=MDBOX_SYNC_FLAG_FORCE_REBUILD, atomic=0x428b57ef10,
ctx_r=0x3bcda49d568) at mdbox-sync.c:235
storage = 0x428b52e290
ctx = <optimized out>
sync_flags = <optimized out>
ret = 4
rebuild = true
storage_rebuilt = false
#7 0x000003667f133b75 in mdbox_sync (mbox=0x428b564a90,
flags=MDBOX_SYNC_FLAG_FORCE_REBUILD) at mdbox-sync.c:319
sync_ctx = 0x0
atomic = 0x428b57ef10
ret = <optimized out>
#8 0x000003667f133c86 in mdbox_storage_sync_init (box=0x428b564a90,
flags=(MAILBOX_SYNC_FLAG_FIX_INCONSISTENT |
MAILBOX_SYNC_FLAG_FORCE_RESYNC)) at mdbox-sync.c:349
mbox = 0x428b564a90
mdbox_sync_flags = <optimized out>
ret = <optimized out>
#9 0x000003667f161631 in mailbox_sync_init (box=0x428b564a90,
flags=(MAILBOX_SYNC_FLAG_FIX_INCONSISTENT |
MAILBOX_SYNC_FLAG_FORCE_RESYNC)) at mail-storage.c:1326
_data_stack_cur_id = 3
ctx = <optimized out>
#10 0x000003667f1617b7 in mailbox_sync (box=<optimized out>,
flags=<optimized out>) at mail-storage.c:1374
ctx = <optimized out>
status = {sync_delayed_expunges = 0}
#11 0x0000004289345a33 in cmd_force_resync_box (ctx=0x428b511de0,
info=<optimized out>) at doveadm-mail.c:211
box = 0x428b564a90
ret = 0
#12 cmd_force_resync_run (ctx=0x428b511de0, user=<optimized out>) at
doveadm-mail.c:240
_data_stack_cur_id = 2
iter = 0x428b554d40
info = 0x428b556e70
ret = 0
#13 0x000000428934566d in doveadm_mail_next_user (error_r=0x3bcda49d6c0,
ctx=0x428b511de0, input=<optimized out>) at doveadm-mail.c:311
ret = 0
#14 doveadm_mail_next_user (ctx=0x428b511de0, input=<optimized out>,
error_r=0x3bcda49d6c0) at doveadm-mail.c:270
error = <optimized out>
ret = <optimized out>
#15 0x000000428934646e in doveadm_mail_cmd (cmd=0x428b511480, argc=4,
argv=0x428b50d578) at doveadm-mail.c:520
input = {module = 0x0, service = 0x4289370302 "doveadm",
username = 0x428b50d5a3 "marcin@mejor.pl", session_id = 0x0, local_ip =
{family = 0, u = {ip6 = {
__in6_u = {__u6_addr8 = '\000'