[Dovecot] Bug: (dovecot-auth), exited on signal 6

[art]

Hello

What additional information I should give?

uname -a
FreeBSD mail 6.2-PRERELEASE FreeBSD 6.2-PRERELEASE #1: Thu Oct 19 
16:57:14 UTC 2006     root@:/usr/obj/usr/src/sys/my  i386

mail# dovecot --version
1.0.rc15
mail# dovecot --build-options
Build options: ioloop=kqueue notify=kqueue openssl
SQL drivers: mysql
Passdb: checkpassword pam passwd passwd-file sql
Userdb: checkpassword passwd prefetch passwd-file sql static

Dec 19 12:49:42 mail dovecot: auth(default): cache(m52 at academ.org): 
Password mismatch
Dec 19 12:49:42 mail dovecot: auth(default): file passdb-blocking.c: 
line 125 (passdb_blocking_verify_plain): assertion failed: 
(request->extra_fields == NULL)
Dec 19 12:49:42 mail dovecot: child 91510 (auth) killed with signal 6

Dec 19 09:20:39 mail pid 96304 (dovecot-auth), uid 65534: exited on signal 6
Dec 19 09:43:31 mail pid 21093 (dovecot-auth), uid 65534: exited on signal 6
Dec 19 09:49:54 mail pid 36637 (dovecot-auth), uid 65534: exited on signal 6
Dec 19 10:02:08 mail pid 40803 (dovecot-auth), uid 65534: exited on signal 6
Dec 19 10:52:43 mail pid 50557 (dovecot-auth), uid 65534: exited on signal 6
Dec 19 10:57:30 mail pid 91182 (dovecot-auth), uid 65534: exited on signal 6
Dec 19 11:33:11 mail pid 94522 (dovecot-auth), uid 65534: exited on signal 6
Dec 19 11:38:21 mail pid 27978 (dovecot-auth), uid 65534: exited on signal 6
Dec 19 11:43:22 mail pid 32969 (dovecot-auth), uid 65534: exited on signal 6
Dec 19 11:48:31 mail pid 36764 (dovecot-auth), uid 65534: exited on signal 6
Dec 19 11:53:32 mail pid 40849 (dovecot-auth), uid 65534: exited on signal 6
Dec 19 11:58:41 mail pid 45037 (dovecot-auth), uid 65534: exited on signal 6
Dec 19 12:03:52 mail pid 49541 (dovecot-auth), uid 65534: exited on signal 6
Dec 19 12:08:51 mail pid 54324 (dovecot-auth), uid 65534: exited on signal 6
Dec 19 12:14:02 mail pid 58746 (dovecot-auth), uid 65534: exited on signal 6
Dec 19 12:19:02 mail pid 63283 (dovecot-auth), uid 65534: exited on signal 6
Dec 19 12:24:11 mail pid 68142 (dovecot-auth), uid 65534: exited on signal 6
Dec 19 12:29:22 mail pid 72969 (dovecot-auth), uid 65534: exited on signal 6
Dec 19 12:34:21 mail pid 77396 (dovecot-auth), uid 65534: exited on signal 6
Dec 19 12:39:32 mail pid 81976 (dovecot-auth), uid 65534: exited on signal 6
Dec 19 12:44:36 mail pid 86217 (dovecot-auth), uid 65534: exited on signal 6
Dec 19 12:44:41 mail pid 91404 (dovecot-auth), uid 65534: exited on signal 6