Hey folks. Suddenly I'm getting lots and lots of messages like this in my logs:

Jun 19 14:47:31 <hostname> dovecot: [ID 583609 local0.error] imap(<address>): Error: mremap_anon(/var/mail/<domain>/<uname>/mailboxes/INBOX/Trash/dbox-Mails/dovecot.index.cache, 255557632) failed: Not enough space

I'm running 2.2.36.1 under Solaris 10 (patched to current) on UltraSPARC. There's plenty of memory, plenty of swap, and plenty of disk, but this is a fairly busy mail server.

Can anyone point me in the right direction? I'm guessing I have to increase a vsz_limit somewhere, but where? It's not clear to me exactly what is running out of what here. The output of doveconf -n is pasted below.

       Thanks,
       -Dave

$ doveconf -n

2.2.36.1 (5d621cf65): /etc/dovecot/dovecot.conf

Pigeonhole version 0.4.24 (124e06aa)

OS: SunOS 5.10 sun4v

Hostname: mail.neurotica.com

auth_failure_delay = 5 secs auth_mechanisms = plain login base_dir = /var/run/dovecot/ debug_log_path = /var/log/dovecot-debug disable_plaintext_auth = no first_valid_uid = 200 login_access_sockets = tcpwrap mail_fsync = never mail_plugins = fts fts_solr managesieve_notify_capability = mailto managesieve_sieve_capability = fileinto reject envelope encoded-character vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify environment mailbox date index ihave duplicate mime foreverypart extracttext editheader mdbox_rotate_size = 64 M mmap_disable = yes namespace inbox { inbox = yes location = mailbox uncaught-spam { auto = subscribe special_use = \Junk } prefix = } passdb { args = /etc/dovecot/dovecot-sql.conf driver = sql } plugin { fts = solr fts_solr = break-imap-search url=http://localhost:8983/solr/ sieve = /var/sieve-scripts/%u.sieve sieve_dir = ~/sieve sieve_extensions = +editheader sieve_global_dir = /var/lib/dovecot/sieve/global/ sieve_global_path = /var/lib/dovecot/sieve/default.sieve } protocols = imap pop3 sieve service auth { unix_listener /var/spool/postfix/private/auth { group = postfix mode = 0660 user = postfix } unix_listener auth-master { group = vmail mode = 0600 user = vmail } user = root } service imap-login { process_min_avail = 10 service_count = 10 vsz_limit = 512 M } service imap { executable = /usr/local/libexec/dovecot/imap vsz_limit = 512 M } service managesieve-login { inet_listener sieve { port = 4190 } process_min_avail = 1 service_count = 1 vsz_limit = 64 M } service managesieve { process_limit = 10 } service pop3-login { process_min_avail = 10 service_count = 10 vsz_limit = 512 M } service pop3 { executable = /usr/local/libexec/dovecot/pop3 } service tcpwrap { unix_listener login/tcpwrap { group = $default_login_user mode = 0600 user = $default_login_user } } ssl_cert = </etc/letsencrypt/live/mail.neurotica.com/fullchain.pem ssl_key = # hidden, use -P to show it syslog_facility = local0 userdb { args = /etc/dovecot/dovecot-sql.conf driver = sql } protocol pop3 { pop3_uidl_format = %08Xu%08Xv } protocol sieve { info_log_path = /var/log/dovecot-sieve.log log_path = /var/log/dovecot-sieve-errors.log managesieve_implementation_string = dovecot managesieve_max_line_length = 65536 } protocol lda { mail_fsync = optimized mail_plugins = fts fts_solr sieve postmaster_address = postmaster@neurotica.com } protocol imap { imap_capability = IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE IDLE SORT SORT=DISPLAY THREAD=REFERENCES THREAD=REFS MULTIAPPEND UNSELECT CHILDREN NAMESPACE UIDPLUS LIST-EXTENDED I18NLEVEL=1 ESEARCH ESORT SEARCHRES WITHIN CONTEXT=SEARCH LIST-STATUS imap_client_workarounds = tb-extra-mailbox-sep mail_max_userip_connections = 40 mail_plugin_dir = /usr/local/lib/dovecot mail_plugins = fts fts_solr } protocol lmtp { info_log_path = /var/log/dovecot-lmtp.log log_path = /var/log/dovecot-lmtp-errors.log mail_plugins = fts fts_solr sieve }

-- Dave McGuire, AK4HZ New Kensington, PA