On 30.07.2013 12:10, wrote Timo Sirainen:

On 16.7.2013, at 20.07, e-frog e-frog@gmx.de wrote:

...

Current Dovecot v2.2 HG crashes using the following command:

$ doveadm mailbox status -A -t unseen 'virtual/unread'

#0 i_stream_next_line (stream=0x0) at istream.c:382 382 istream.c: No such file or directory. (gdb) bt full #0 i_stream_next_line (stream=0x0) at istream.c:382 _stream = <optimized out> pos = <optimized out> #1 0xb754656b in auth_master_user_list_next (ctx=0xb91bfbd8) at auth-master.c:689 line = <optimized out>

Fixed the crash: http://hg.dovecot.org/dovecot-2.2/rev/0cab916b28c6

Thanks, with this change I get an error message instead of the crash: doveadm(test1@local.lan): Fatal: seteuid(0) failed: Operation not permitted

Although the real problem I think is that you didn't have permissions to connect to the auth-userdb socket.

Hmm, doveadm is running as user 'vmail' and auth-userdb socket has the following permissions:

srw------- 1 vmail root 0 Jul 30 13:12 auth-userdb

Which I think should work and actually has worked with all v2.2.x versions so far...

On 01.08.2013 13:20, wrote Timo Sirainen:

On 30.7.2013, at 15.08, e-frog e-frog@gmx.de wrote:

...

...

Fixed the crash: http://hg.dovecot.org/dovecot-2.2/rev/0cab916b28c6

Thanks, with this change I get an error message instead of the crash: doveadm(test1@local.lan): Fatal: seteuid(0) failed: Operation not permitted

Try once more with latest hg. Should be at least a different error now?

Hmm, now it's crashing again:

doveadm mailbox status -A -t unseen 'virtual/unread' test1@local.lan unseen=1 Segmentation fault

Please note that it seems to work for the first user but crashes for the second.

Core was generated by `doveadm mailbox status -A -t unseen virtual/unread'. Program terminated with signal 11, Segmentation fault. #0 i_stream_next_line (stream=0x0) at istream.c:382 382 istream.c: No such file or directory. (gdb) bt full #0 i_stream_next_line (stream=0x0) at istream.c:382 _stream = <optimized out> pos = <optimized out> #1 0xb752c711 in auth_master_user_list_next (ctx=0xb7edabc8) at auth-master.c:694 line = <optimized out> #2 0xb761aaeb in mail_storage_service_all_next (ctx=0xb7edfb98, username_r=username_r@entry=0xbf852880) at mail-storage-service.c:1294 __FUNCTION__ = "mail_storage_service_all_next" #3 0xb7736d46 in doveadm_mail_cmd_get_next_user (ctx=0xb7ed9468, username_r=0xbf852880) at doveadm-mail.c:416 No locals. #4 0xb7737e95 in doveadm_mail_all_users (wildcard_user=0x0, argv=0xb7ed51e4, ctx=0xb7ed9468) at doveadm-mail.c:368 ret = <optimized out> input = {module = 0x0, service = 0xb77758f3 "doveadm", username = 0xb7eda890 "test1@local.lan", session_id = 0x0, local_ip = {family = 0, u = {ip6 = {__in6_u = {__u6_addr8 = '\000' , __u6_addr16 = {0, 0, 0, 0, 0, 0, 0, 0}, __u6_addr32 = {0, 0, 0, 0}}}, ip4 = {s_addr = 0}}}, remote_ip = {family = 0, u = {ip6 = {__in6_u = { __u6_addr8 = '\000' , __u6_addr16 = {0, 0, 0, 0, 0, 0, 0, 0}, __u6_addr32 = {0, 0, 0, 0}}}, ip4 = { s_addr = 0}}}, local_port = 0, remote_port = 0, userdb_fields = 0x0, flags_override_add = (unknown: 0), flags_override_remove = (unknown: 0), no_userdb_lookup = 0} user_idx = 0 user = 0xb7eda890 "test1@local.lan" error = 0x10