dovecot - Sep 2009 - Command died with signal 11: "/usr/lib/dovecot/deliver"

Hello

I have problem with deliver dying with signal 11. I'm using postfix + 
dovecot devliver. If mailbox have many (100+) redirects in sieve or many 
other sieve rules deliver died. I have tested this in debian etch + 
dovecot 1.1.18 (compiled from sources) and debian lenny + dovecot 1.1.13 
from backports.

Sep  7 13:58:19 mail postfix/pipe[5964]: AC6835938: 
to=<test1 at mx.domain>, orig_to=<test1 at domain>, relay=dovecot,
delay=10,
delays=0.06/0.01/0/10,
dsn=5.3.0, status=bounced (Command died with signal 11: 
"/usr/lib/dovecot/deliver")

I try to debug by running deliver via gdbhelper:

GNU gdb 6.4.90-debian
Copyright (C) 2006 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you are
welcome to change it and/or distribute copies of it under certain 
conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB.  Type "show warranty" for
details.
This GDB was configured as
"i486-linux-gnu"..."/tmp/deliver.sh": not in
executable format: File format not recognized

Attaching to process 8557
Reading symbols from /bin/bash...(no debugging symbols found)...done.
Using host libthread_db library
"/lib/tls/i686/cmov/libthread_db.so.1".
Reading symbols from /lib/libncurses.so.5...(no debugging symbols 
found)...done.
Loaded symbols for /lib/libncurses.so.5
Reading symbols from /lib/tls/i686/cmov/libdl.so.2...
(no debugging symbols found)...done.
Loaded symbols for /lib/tls/i686/cmov/libdl.so.2
Reading symbols from /lib/tls/i686/cmov/libc.so.6...(no debugging 
symbols found)...done.
Loaded symbols for /lib/tls/i686/cmov/libc.so.6
Reading symbols from /lib/ld-linux.so.2...
(no debugging symbols found)...done.
Loaded symbols for /lib/ld-linux.so.2
Reading symbols from /lib/tls/i686/cmov/libnss_files.so.2...(no 
debugging symbols found)...done.
Loaded symbols for /lib/tls/i686/cmov/libnss_files.so.2

(no debugging symbols found)
0xffffe410 in __kernel_vsyscall ()
(gdb) Signal        Stop        Print   Pass to program Description
SIGPIPE       No        Yes     Yes             Broken pipe
(gdb) Signal        Stop        Print   Pass to program Description
SIGALRM       No        No      Yes             Alarm clock
(gdb) Signal        Stop        Print   Pass to program Description
SIG32         No        Yes     Yes             Real-time event 32
(gdb) Continuing.

Program received signal SIGSEGV, Segmentation fault.
0xb7e458d2 in free () from /lib/tls/i686/cmov/libc.so.6
(gdb) #0  0xb7e458d2 in free () from /lib/tls/i686/cmov/libc.so.6
No symbol table info available.
#1  0xbfb3aed4 in ?? ()
No symbol table info available.
#2  0xffffeffc in ?? ()
No symbol table info available.
#3  0xb7e4a45c in mtrace () from /lib/tls/i686/cmov/libc.so.6
No symbol table info available.
#4  0x08119ecc in ?? ()
No symbol table info available.
#5  0xbfb3aed4 in ?? ()
No symbol table info available.
#6  0xbfb3af18 in ?? ()
No symbol table info available.
#7  0xbfb3aecc in ?? ()
No symbol table info available.
#8  0x08118e50 in ?? ()
No symbol table info available.
#9  0x08111f18 in ?? ()
No symbol table info available.
#10 0xbfb3aed8 in ?? ()
No symbol table info available.
#11 0x00000000 in ?? ()
No symbol table info available.
(gdb) Detaching from program: /bin/bash, process 8557

my config

base_dir = /var/run/dovecot/
protocols = imap imaps pop3 pop3s
disable_plaintext_auth = no
log_timestamp = "%Y-%m-%d %H:%M:%S "
mail_location = maildir:%h/Maildir
mail_privileged_group = mail
verbose_proctitle = yes
first_valid_uid = 1000
protocol imap {
  mail_max_userip_connections = 10
  mail_plugin_dir = /usr/lib/dovecot/modules/imap
  mail_plugins = quota imap_quota zlib
  imap_logout_format = bytes=%i/%o
  imap_client_workarounds = delay-newmail
}
protocol pop3 {
  pop3_uidl_format = %Mf
  mail_max_userip_connections = 3
  mail_plugin_dir = /usr/lib/dovecot/modules/pop3
  mail_plugins = quota zlib
  pop3_client_workarounds = outlook-no-nuls oe-ns-eoh
}
protocol lda {
  postmaster_address = postmaster at example.com
  mail_plugins = cmusieve quota
  mail_plugin_dir = /usr/lib/dovecot/modules/lda
  sieve_global_dir = /etc/ogicom/sieve/global/
  deliver_log_format = msgid=%m: %$ (subject: %s, From: %f)
  auth_socket_path = /var/run/dovecot/auth-master
}
auth_username_chars = 
abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ01234567890.-_ at +%
auth default {
  mechanisms = plain login
  passdb sql {
    args = /etc/dovecot/dovecot-sql.user.conf
  }
  passdb sql {
    args = /etc/dovecot/dovecot-sql.alias.conf
  }
  userdb prefetch {
  }
  userdb prefetch {
  }
  userdb sql {
    args = /etc/dovecot/dovecot-sql.deliver.conf
  }
  user = root
  socket listen {
    master {
      path = /var/run/dovecot/auth-master
      mode = 0600
      user = vmail
    }
    client {
      path = /var/spool/postfix/private/auth
      mode = 0660
      user = postfix
      group = postfix
    }
  }
}
dict {
}
plugin {
  quota_rule = *:storage=5G
  quota = maildir
}

There is a bug in dovecot code? Is there workaround?

-- 
Pozdrowienia
  Maciej Polewczynski
  Registered Linux user #117725 
  OGICOM Sp. z o.o., 61-131 Poznan, ul. Baraniaka 88
  REGON 634407251, NIP 781-17-20-476, KRS 0000140692
  kapital zakladowy: 410 000 PLN

On Tue, 2009-09-08 at 09:05 +0200, Maciej Polewczy?ski
wrote:
> Hello
> 
> I have problem with deliver dying with signal 11. I'm using postfix + 
> dovecot devliver. If mailbox have many (100+) redirects in sieve or many 
> other sieve rules deliver died. I have tested this in debian etch + 
> dovecot 1.1.18 (compiled from sources) and debian lenny + dovecot 1.1.13 
> from backports.
Can you send me one such script that crashes it?
> I try to debug by running deliver via gdbhelper:
..
> This GDB was configured as
"i486-linux-gnu"..."/tmp/deliver.sh": not in
> executable format: File format not recognized
gdb is trying to open /tmp/deliver.sh instead of the actual deliver
binary, so it wasn't set up right.
> No symbol table info available.
> #1  0xbfb3aed4 in ?? ()
In general when you only see "??" lines in gdb backtrace it's not
useful.
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Timo Sirainen pisze:
> On Tue, 2009-09-08 at 09:05 +0200, Maciej Polewczy?ski wrote:
>   
>> Hello
>>
>> I have problem with deliver dying with signal 11. I'm using postfix
+
>> dovecot devliver. If mailbox have many (100+) redirects in sieve or
many
>> other sieve rules deliver died. I have tested this in debian etch + 
>> dovecot 1.1.18 (compiled from sources) and debian lenny + dovecot
1.1.13
>> from backports.
>>     
>
> Can you send me one such script that crashes it?
>   
In .dovecot.sieve I have:

require ["regex", "fileinto", "include"];

include :personal       ".forward.sieve";

if anyof
(
address :matches "From"
[
        "email at somedomain.com"
],
address :matches "To"
[
        "myemail at mydomain.com"
],
header :contains "Subject"
[
        "some subject"
]
)
{
       # many commented rules
        keep;
        stop;
}
else {
       many commented rules
        keep;
        stop;
}

in .forward.sieve there are above hundred redirects

redirect "test.1 at domain.pl";
redirect "test.2 at domain.pl";
...
redirect "test.120 at domain.pl";
redirect "test.121 at domain.pl";

In debian etch deliver stoping redirectict about 80-90 address and dying 
with signal 11. In debian lenny deliver redirect to all addresses but 
also dying.
>   
>> I try to debug by running deliver via gdbhelper:
>>     
> ..
>   
>> This GDB was configured as
"i486-linux-gnu"..."/tmp/deliver.sh": not in
>> executable format: File format not recognized
>>     
>
> gdb is trying to open /tmp/deliver.sh instead of the actual deliver
> binary, so it wasn't set up right.
>
>   
>> No symbol table info available.
>> #1  0xbfb3aed4 in ?? ()
>>     
>
> In general when you only see "??" lines in gdb backtrace it's
not
> useful.
>   
I run deliver through gdbhelper in this way

dovecot   unix  -       n       n       -       -       pipe
    flags=DRhu user=vmail:vmail argv=/usr/lib/dovecot/gdbhelper 
/tmp/deliver.sh -d ${recipient} -f ${sender}

and in /tmp/deliver.sh

#!/bin/sh
sleep 1
exec /usr/lib/dovecot/deliver $*

-- 
Pozdrowienia
  Maciej Polewczynski
  Registered Linux user #117725 
  OGICOM Sp. z o.o., 61-131 Poznan, ul. Baraniaka 88
  REGON 634407251, NIP 781-17-20-476, KRS 0000140692
  kapital zakladowy: 410 000 PLN