[Dovecot] maildir_uidlist_create assertion failure

Fri Dec 21 18:14:49 EET 2007

Dnia czwartek, 20 grudnia 2007, Timo Sirainen napisał:
> On Thu, 2007-12-20 at 19:28 +0200, Timo Sirainen wrote:
> > On Thu, 2007-12-20 at 11:20 -0600, Andrew Garner wrote:
> > > On Dec 20, 2007 11:10 AM, Timo Sirainen <tss at iki.fi> wrote:
> > > > On Mon, 2007-12-17 at 12:52 -0600, Andrew Garner wrote:
> > > > > I've been getting the following error fairly often, which tends to
> > > > > result in a corrupted dovecot-uidlist.
> > > > >
> > > > > dovecot: IMAP(example at example.com): file maildir-uidlist.c: line
> > > > > 1009 (maildir_uidlist_recreate): assertion failed: (file_size ==
> > > > > (uoff_t)st.st_size)
> > > >
> > > > What filesystem do you use?
> > >
> > > This is an NFS filesystem on an EMC Clariion CX700 backend.   The
> > > local client OS is Linux 2.6.18-5-686 (from debian/etch).
> >
> > And there are multiple Dovecot servers? Did you set
> > mail_nfs_storage=yes?
>
> Oh, you already said that. Also it shouldn't have made a difference
> there. I'm not really sure why it would break like that, but since you
> mention you're running 2.6.18 and http://wiki.dovecot.org/NFS says:
>
> "Linux 2.6.18: Seems to have intermittent caching issues. The
> same .config with 2.6.20.1 has been tested and appears to work well."
>
> Maybe the problem is with the kernel. I could of course change the
> assert to be a nicer error message, but that wouldn't really solve
> anything.

I seem to have a similar assertion failure. The maildirs are held on reiserfs 
on external RAID. I have set the indexes on internal RAID yesterday, which 
seems to have triggered the problem. The assertion failure occurs under 
increased load - during loadtests. 

dovecot: Dec 21 16:43:41 Error: IMAP(test0): file maildir-uidlist.c: line 143 
(maildir_uidlist_lock_touch): assertion failed: (UIDLIST_IS_LOCKED(uidlist))
dovecot: Dec 21 16:43:41 Error: IMAP(test0): Raw 
backtrace: /usr/lib64/dovecot/imap [0x45fc4c] -> /usr/lib64/dovecot/imap 
[0x45f41c] -> /usr/lib64/dovecot/im
ap [0x4224b9] -> /usr/lib64/dovecot/imap [0x42073e] -> /usr/lib64/dovecot/imap 
[0x420f5f] -> /usr/lib64/dovecot/imap 
[0x421d14] -> /usr/lib64/dovecot/imap(ma
ildir_storage_sync_force+0x43) 
[0x421f33] -> /usr/lib64/dovecot/imap(maildir_storage_sync_init+0xc1) 
[0x4220c1] -> /usr/lib64/dovecot/imap(mailbox_sync_init+
0x7) [0x452877] -> /usr/lib64/dovecot/imap(imap_sync_init+0x45) 
[0x41b705] -> /usr/lib64/dovecot/imap(cmd_sync+0x80) 
[0x41bbf0] -> /usr/lib64/dovecot/imap [0
x412580] -> /usr/lib64/dovecot/imap(cmd_fetch+0x128) 
[0x412708] -> /usr/lib64/dovecot/imap [0x415e42] -> /usr/lib64/dovecot/imap 
[0x415dd0] -> /usr/lib64/dov
ecot/imap(_client_input+0x70) 
[0x415f20] -> /usr/lib64/dovecot/imap(io_loop_handler_run+0x10e) 
[0x46528e] -> /usr/lib64/dovecot/imap(io_loop_run+0x1c) [0x464
8fc] -> /usr/lib64/dovecot/imap(main+0x6b) [0x41d82b] -> /lib64/tls/libc.so.6
(__libc_start_main+0xd5) [0x2ae740dea815] -> /us
dovecot: Dec 21 16:43:41 Error: IMAP(test0): r/lib64/dovecot/imap [0x410e6a]
dovecot: Dec 21 16:43:41 Error: child 21744 (imap) killed with signal 6

# 1.0.9: /etc/dovecot/dovecot.conf
base_dir: /var/run/dovecot/
log_path: /var/log/dovecot.log
ssl_ca_file: /etc/certs/certum-chain.crt
ssl_cert_file: /etc/certs/wild.dfqs.pl.crt
ssl_key_file: /etc/certs/wild.dfqs.pl.key
ssl_cipher_list: ALL:!LOW:!MEDIUM
login_dir: /var/run/dovecot/login
login_executable: /usr/lib64/dovecot/imap-login
login_greeting: imap.dfqs.pl ready.
login_process_per_connection: no
login_processes_count: 5
login_max_processes_count: 32
max_mail_processes: 4096
verbose_proctitle: yes
mail_location: maildir:~/mail:INDEX=/var/lib/dovecot/indexes/%n
maildir_copy_with_hardlinks: yes
maildir_copy_preserve_filename: yes
mail_executable: /usr/local/lib64/dovecot-post-login.sh
mail_plugins: imap_quota quota acl
mail_plugin_dir: /usr/lib64/dovecot/plugins/imap
mail_log_max_lines_per_sec: 0
imap_client_workarounds: outlook-idle tb-extra-mailbox-sep
namespace:
  type: private
  separator: /
  inbox: yes
namespace:
  type: public
  separator: /
  prefix: Public/
  location: 
maildir:/var/vmail/Public:CONTROL=~/Public/control:INDEX=~/Public/index
namespace:
  type: shared
  separator: /
  prefix: Shared/
  location: 
maildir:/var/vmail/Shared:CONTROL=~/Shared/control:INDEX=~/Shared/index
auth default:
  cache_size: 4096
  cache_ttl: 600
  verbose: yes
  worker_max_count: 512
  passdb:
    driver: pam
    args: cache_key=%n dovecot
  userdb:
    driver: ldap
    args: /etc/dovecot/dovecot-ldap.conf
  socket:
    type: listen
    client:
      path: /var/run/dovecot/auth-client
      mode: 432
      user: root
      group: vmail
    master:
      path: /var/run/dovecot/auth-master
      mode: 432
      user: root
      group: vmail
plugin:
  quota: maildir:storage=8388608
  acl: vfile:

[root at harem ~]# uname -a
Linux harem 2.6.21.5-0.1 #1 SMP Wed Jun 27 09:06:26 UTC 2007 x86_64 
Intel(R)_Xeon(R)_CPU___________E5310__ at _1.60GHz PLD Linux

-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 189 bytes
Desc: This is a digitally signed message part.
Url : http://dovecot.org/pipermail/dovecot/attachments/20071221/5f598e79/attachment.bin 