[Dovecot] Problem with fts lucene, on solaris 10

[Pigi]

Hi all,
 I'm planning to migrate my courier-imap imap server to dovecot, but I'm experiencing a strange issue 
with fts-lucene plugin.

Basically, every time I start a search, the log starts to write:

Apr 05 19:30:53 indexer: Error: Indexer worker disconnected, discarding 1 requests for XXXXXX
Apr 05 19:30:53 indexer-worker(XXXXX): Fatal: master: service(indexer-worker): child 809 killed with signal 11 (core not dumped)
Apr 05 19:30:53 imap(XXXXXX): Error: indexer failed to index mailbox INBOX
Apr 05 19:30:56 indexer-worker(XXXXX): Error: lucene index /home/XXXXX/Maildir/lucene-indexes: IndexWriter() failed (#1): Lock obtain timed out

When trussing the indexer-worker pid I can see it ends with:
...SNIP...
527:    brk(0x005A7840)                                 = 0
527:    brk(0x005AD840)                                 = 0
527:    pread64(16, " I   G E N E R I C I < /".., 8170, 24514) = 8170
527:    brk(0x005AD840)                                 = 0
527:    brk(0x005B3840)                                 = 0
527:        Incurred fault #5, FLTACCESS  %pc = 0xFEBD6DDC
527:          siginfo: SIGBUS BUS_ADRALN addr=0x005B50BA
527:        Received signal #10, SIGBUS [default]
527:          siginfo: SIGBUS BUS_ADRALN addr=0x005B50BA


I cannot get a core, but either root ( user that is starting the dovecot ) than the user XXXXX have unlimited coresize
XXXXX /home/XXXXXXX > ulimit -a
time(seconds)        unlimited
file(blocks)         unlimited
data(kbytes)         unlimited
stack(kbytes)        8192
coredump(blocks)     unlimited
nofiles(descriptors) 256
vmemory(kbytes)      unlimited

root # ulimit -a
core file size        (blocks, -c) unlimited
data seg size         (kbytes, -d) unlimited
file size             (blocks, -f) unlimited
open files                    (-n) 1024
pipe size          (512 bytes, -p) 10
stack size            (kbytes, -s) 8192
cpu time             (seconds, -t) unlimited
max user processes            (-u) 29995
virtual memory        (kbytes, -v) unlimited

The mailbox for user XXXXXX ( Maildir stile, for speed-up migration ) has ~ 4000 messages.

The search ends, but I think it don't use the lucene plugin ( it crashes ).

I'm sure I'm missing something, but I can't really find what.


All stuff have been self compiled, using standard flags as per "configure" scripts.


Thanks for any hint.

Pigi

here the environment:

uname -a
SunOS puma 5.10 Generic_137137-09 sun4u sparc SUNW,Sun-Fire-V240  
( yes, I know, it's quite old ;) )

=======
dovecot --version
2.1.15

=======
doveconf -n
# 2.1.15: /usr/local/dovecot/etc/dovecot/dovecot.conf
# OS: SunOS 5.10 sun4u
debug_log_path = /usr/local/dovecot/var/log/dovecot-debug.log
disable_plaintext_auth = no
first_valid_uid = 100
info_log_path = /usr/local/dovecot/var/log/dovecot-info.log
log_path = /usr/local/dovecot/var/log/dovecot.log
mail_location = maildir:~/Maildir
mail_plugins = " fts fts_lucene"
namespace {
  inbox = yes
  location =
  prefix = INBOX.
  separator = .
}
passdb {
  driver = pam
}
plugin {
  fts = lucene
  fts_lucene = whitespace_chars=@.
}
service imap-login {
  inet_listener imap {
    port = 144
  }
}
service indexer-worker {
  drop_priv_before_exec = yes
}
service pop3-login {
  inet_listener pop3 {
    port = 112
  }
}
ssl = no
userdb {
  driver = passwd
}




=============
gcc -v
Reading specs from /usr/sfw/lib/gcc/sparc-sun-solaris2.10/3.4.3/specs
Configured with: /sfw10/builds/build/sfw10-patch/usr/src/cmd/gcc/gcc-3.4.3/configure --prefix=/usr/sfw --with-as=/usr/ccs/bin/as --without-gnu-as --with-ld=/usr/ccs/bin/ld --without-gnu-ld --enable-languages=c,c++ --enable-shared
Thread model: posix
gcc version 3.4.3 (csl-sol210-3_4-branch+sol_rpath)

=============
clucene clucene-core-2.3.3.4
libstemmer_c 
libtextcat-2.2
openssl-1.0.1e