Re: [Dovecot] 2.1.10 crashes at login (buf->used <= buf->alloc)

I thought it would be easily identifiable and a common problem, but apparently not :)

Here is the trace: (gdb) bt full #0 0x0000000010709ebc in kill () from /lib/libc.so.7 No symbol table info available. #1 0x0000000010708e43 in abort () from /lib/libc.so.7 No symbol table info available. #2 0x00000000105b8e65 in default_fatal_finish.14395 () from /usr/lib/dovecot/libdovecot.so.0 No symbol table info available. #3 0x0000000010588e3d in i_internal_fatal_handler.14399 () from /usr/lib/dovecot/libdovecot.so.0 No symbol table info available. #4 0x00000000105e4941 in i_panic () from /usr/lib/dovecot/libdovecot.so.0 No symbol table info available. #5 0x00000000105e7c77 in buffer_check_limits.13467 () from /usr/lib/dovecot/libdovecot.so.0 No symbol table info available. #6 0x00000000105e7a6a in buffer_write () from /usr/lib/dovecot/libdovecot.so.0 No symbol table info available. #7 0x00000000105ce9f9 in array_idx_set_i () from /usr/lib/dovecot/libdovecot.so.0 No symbol table info available. #8 0x00000000109c770b in antispam_user_created (user=0x10a83040) at user.c:17 _module_tmp = (void *) 0x10a84d28 asu = (struct antispam_user *) 0x10a84d28 tmp = 0x0 #9 0x00000000104f1f04 in hook_mail_user_created () from /usr/lib/dovecot/libdovecot-storage.so.0 No symbol table info available. #10 0x00000000104efaf9 in mail_user_init () from /usr/lib/dovecot/libdovecot-storage.so.0 No symbol table info available. #11 0x0000000010495858 in mail_storage_service_init_post.46586.6405 () from /usr/lib/dovecot/libdovecot-storage.so.0 No symbol table info available. #12 0x0000000010495582 in mail_storage_service_next () from /usr/lib/dovecot/libdovecot-storage.so.0 No symbol table info available. #13 0x00000000104951b3 in mail_storage_service_lookup_next () from /usr/lib/dovecot/libdovecot-storage.so.0 No symbol table info available. #14 0x000000000041f112 in client_create_from_input (input=0x7fffffffe940, login_client=0x10a550c0, fd_in=11, fd_out=11, input_buf=0x7fffffffe900, error_r=0x7fffffffe938) at main.c:202 user = (struct mail_storage_service_user *) 0x10a55141 mail_user = (struct mail_user *) 0x3 client = (struct client *) 0x7fffffffec70 set = (const struct imap_settings *) 0x7fffffffe900 flags = 32767 #15 0x000000000041eeaa in login_client_connected (client=0x10a550c0, username=0x10a04093 "test@example.com", extra_fields=0x10a04118) at main.c:272 input = {module = 0x423d0f "imap", service = 0x423d0f "imap", username = 0x10a04093 "test@example.com", session_id = 0x10a55120 "UCFMXQDK5gBewxZf", local_ip = {family = 2, u = {ip6 = {__u6_addr = {__u6_addr8 = "N.8Q", '\0' , __u6_addr16 = {11854, 20792, 0, 0, 0, 0, 0, 0}, __u6_addr32 = {1362636366, 0, 0, 0}}}, ip4 = {s_addr = 1362636366}}}, remote_ip = {family = 2, u = {ip6 = {__u6_addr = {__u6_addr8 = "^¦\026_", '\0' , __u6_addr16 = {50014, 24342, 0, 0, 0, 0, 0, 0}, __u6_addr32 = {1595327326, 0, 0, 0}}}, ip4 = {s_addr = 1595327326}}}, local_port = 0, remote_port = 0, userdb_fields = 0x10a04118, flags_override_add = 0, flags_override_remove = 0, no_userdb_lookup = 0} error = (const __unknown__ *) 0x0 input_buf = {data = 0x10a55141, used = 3, priv = {0x0, 0x0, 0x3, 0x0, 0x0}} #16 0x00000000105a229f in master_login_auth_finish.11302 () from /usr/lib/dovecot/libdovecot.so.0 No symbol table info available. #17 0x00000000105efa50 in master_login_auth_callback.11253.2275 () from /usr/lib/dovecot/libdovecot.so.0 No symbol table info available. #18 0x0000000010596f56 in master_login_auth_input_user.11520 () from /usr/lib/dovecot/libdovecot.so.0 No symbol table info available. #19 0x000000001058bf99 in master_login_auth_input.11492 () from /usr/lib/dovecot/libdovecot.so.0 No symbol table info available. #20 0x00000000105e9b34 in io_loop_call_io () from /usr/lib/dovecot/libdovecot.so.0 No symbol table info available. #21 0x00000000105d1ba7 in io_loop_handler_run () from /usr/lib/dovecot/libdovecot.so.0 No symbol table info available. #22 0x00000000105d1a55 in io_loop_run () from /usr/lib/dovecot/libdovecot.so.0 No symbol table info available. #23 0x00000000105d1790 in master_service_run () from /usr/lib/dovecot/libdovecot.so.0 No symbol table info available. #24 0x000000000041ed5d in main (argc=1, argv=0x7fffffffec60) at main.c:389 set_roots = {0x424020, 0x0} login_set = {auth_socket_path = 0x10a04068 "/var/run/dovecot/auth-master", postlogin_socket_path = 0x0, postlogin_timeout_secs = 60, callback = 0x41ed9d , failure_callback = 0x4194ee } service_flags = MASTER_SERVICE_FLAG_KEEP_CONFIG_OPEN storage_service_flags = MAIL_STORAGE_SERVICE_FLAG_DISALLOW_ROOT username = (const __unknown__ *) 0x0 c = -1 set_roots = {0x424020, 0x0}

Cheers,

Olivier

On 18/09/2012 21:42, Timo Sirainen wrote:

On 18.9.2012, at 23.32, interfaSys sàrl wrote:

...

There is a big problem with 2.1.10.

Here is what I saw in the logs: Sep 18 22:22:23 imap(): Panic: file buffer.c: line 86 (buffer_check_limits): assertion failed: (buf->used <= buf->alloc) Sep 18 22:22:23 imap(): Fatal: master: service(imap): child 26833 killed with signal 6 (core dumped)

Reverting to 2.1.9 with the exact same config file works just fine

gdb backtrace? http://dovecot.org/bugreport.html