Re: Too many references: cannot splice

[Sebastian Köhler]

December 2, 2016 6:58 PM, "Luis Ugalde"  wrote:
> On October 13th I sent a new email with subject "Too many references:
> cannot splice" with a reference to a lklm post.

Thanks Luis for the info. I wonder why I did not find that post...

> You will find more info. and a patch there. I can confirm the patch is
> working for us.

I have applied that patch to the server and I will report back in a couple of 
days if it is also working for us.

-- Sebastian

Too many references: cannot splice

[Sebastian Köhler]

Hello,

multiple times per day one of our Dovecot servers has the problem that it 
suddenly refuses to accept new connections and then floods the logs with these 
messages:

Dec  2 12:43:06 alfa3201 dovecot: pop3-login: Error: fd_send(pop3, 18) failed: 
Too many references: cannot splice
Dec  2 12:43:07 alfa3201 dovecot: pop3-login: Error: fd_send(pop3, 18) failed: 
Too many references: cannot splice
Dec  2 12:43:07 alfa3201 dovecot: imap-login: Error: fd_send(imap, 16) failed: 
Too many references: cannot splice
Dec  2 12:43:07 alfa3201 dovecot: imap-login: Error: fd_send(imap, 16) failed: 
Too many references: cannot splice


We have to either do a restart of the server or a doveadm kick on all users to 
make it reachable again. On my search for a solution I found a similar report 
from March[1] however without a fix. 


[1] http://dovecot.org/pipermail/dovecot/2016-March/103514.html


dovecot -n

# 2.2.24 (a82c823): /etc/dovecot/dovecot.conf
# Pigeonhole version 0.4.13 (7b14904)
# OS: Linux 4.4.17-040417-generic x86_64 Debian 8.6
auth_mechanisms = plain login
debug_log_path = /var/log/dovecot-debug.log
default_client_limit = 8003
default_process_limit = 2000
default_vsz_limit = 512 M
disable_plaintext_auth = no
listen = *
login_greeting = [CENSORED] - ready.
mail_location = 
maildir:~/Maildir:CONTROL=/opt/dovecot/control/%n-control:INDEX=/opt/dovecot/index/%n
mail_plugins = " stats quota"
namespace inbox {
  inbox = yes
  location =
  mailbox Drafts {
auto = subscribe
special_use = \Drafts
  }
  mailbox Spam {
auto = subscribe
special_use = \Junk
  }
  mailbox Sent {
auto = subscribe
special_use = \Sent
  }
  mailbox "Sent Messages" {
special_use = \Sent
  }
  mailbox Trash {
auto = subscribe
special_use = \Trash
  }
  prefix = INBOX.
  separator = .
}
passdb {
  args = dovecot-%s
  driver = pam
}
plugin {
  quota = fs:%n(soft quota)
  sieve = ~/.dovecot.sieve
  sieve_dir = ~/sieve
  stats_command_min_time = 1 mins
  stats_domain_min_time = 12 hours
  stats_ip_min_time = 12 hours
  stats_memory_limit = 16 M
  stats_refresh = 30 secs
  stats_session_min_time = 15 mins
  stats_track_cmds = no
  stats_user_min_time = 24 hours
}
protocols = " imap pop3"
service auth {
  unix_listener /var/spool/postfix/private/auth {
group = postfix
mode = 0666
user = postfix
  }
}
service imap-login {
  inet_listener imaps {
ssl = yes
  }
}
service imap-postlogin {
  executable = script-login /etc/dovecot/post-login/expire.sh
}
service imap {
  executable = imap imap-postlogin
}
service pop3-login {
  inet_listener pop3 {
port = 110
  }
  inet_listener pop3s {
port = 995
ssl = yes
  }
}
service pop3-postlogin {
  executable = script-login /etc/dovecot/post-login/expire.sh
}
service pop3 {
  executable = pop3 pop3-postlogin
}
service quota-status {
  executable = quota-status -p postfix
  unix_listener /var/spool/postfix/private/quota {
group = postfix
mode = 0660
user = postfix
  }
}
service stats {
  fifo_listener stats-mail {
mode = 0666
user = dovecot
  }
}
ssl_ca = 

[Dovecot] Pigeonhole: error while loading shared libraries

[Sebastian Köhler]

Hi,

I built pigeonhole from the hg repo for Dovecot 2.0. Local sieve
scripts work fine. But as soon as I try to connect via managesieve I get
this errror:

managesieve-login: Error: dovecot/managesieve-login: error while loading
shared libraries: libdovecot-login.so.0: cannot open shared object file:
No such file or directory


My dovecot install is in /usr/lib/dovecot and I had to symlink the libs
in the dovecot folder to /usr/lib to make managesieve work.


My configure options were: --prefix=/usr --with-dovecot=/usr/lib/dovecot


Sebastian


-- 
The best thing about a boolean is even if you are wrong, you are only 
off by a bit.


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Re: [Dovecot] Pigeonhole: error while loading shared libraries

[Sebastian Köhler]

On Wed, Aug 18, 2010 at 02:02:13PM +0100, Timo Sirainen wrote: 
 Does ldd /usr/libexec/dovecot/managesieve-login show that it finds
 libdovecot-login.so.0?

Without symlinks in /usr/lib/ ldd looks like this:

ldd /usr/lib/dovecot/managesieve-login 
linux-gate.so.1 =  (0xb77b8000)
libdovecot-login.so.0 = not found
libdovecot.so.0 = not found
libc.so.6 = /lib/libc.so.6 (0xb7662000)
/lib/ld-linux.so.2 (0xb77b9000)


For some reason managesieve-login ignores the libs it was compiled
against and only looks into /usr/lib for the libs.

 What OS is this?

Arch Linux

-- 
The best thing about a boolean is even if you are wrong, you are only 
off by a bit.


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Re: [Dovecot] Pigeonhole: error while loading shared libraries

[Sebastian Köhler]

On Wed, Aug 18, 2010 at 04:09:21PM +0100, Timo Sirainen wrote:
 On Wed, 2010-08-18 at 16:29 +0200, Sebastian Köhler wrote:
  For some reason managesieve-login ignores the libs it was compiled
  against and only looks into /usr/lib for the libs.
 
 What is the linking command for managesieve-login? It should be
 something like:
 
 libtool: link: gcc -std=gnu99 -g -O2 -Wall -W -Wmissing-prototypes
 -Wmissing-declarations -Wpointer-arith -Wchar-subscripts -Wformat=2
 -Wbad-function-cast -Wstrict-aliasing=2 -o managesieve-login client.o
 client-authenticate.o managesieve-login-settings.o
 managesieve-proxy.o  ../../src/lib-managesieve/libmanagesieve.a 
 /usr/local/lib/dovecot/libdovecot-login.so -L/usr/local/lib/dovecot 
 /usr/local/lib/dovecot/libdovecot.so -lrt -Wl,-rpath 
 -Wl,/usr/local/lib/dovecot -Wl,-rpath -Wl,/usr/local/lib/dovecot



libtool: link: gcc -std=gnu99 -march=i686 -mtune=generic -O2 -pipe -Wall
-W -Wmissing-prototypes -Wmissing-declarations -Wpointer-arith
-Wchar-subscripts -Wformat=2 -Wbad-function-cast -Wstrict-aliasing=2 -o
managesieve-login client.o client-authenticate.o
managesieve-login-settings.o managesieve-proxy.o
../../src/lib-managesieve/libmanagesieve.a -ldovecot-login
-L/usr/lib/dovecot -ldovecot -lrt


 Where the -Wl,-rpath -Wl,/usr/local/lib/dovecot is the important part.

obviously not there :) But other lines have it e.g.

libtool: link: gcc -std=gnu99 -march=i686 -mtune=generic -O2 -pipe -Wall
-W -Wmissing-prototypes -Wmissing-declarations -Wpointer-arith
-Wchar-subscripts -Wformat=2 -Wbad-function-cast -Wstrict-aliasing=2 -o
.libs/sieved sieved.o -Wl,--export-dynamic
../../src/lib-sieve/.libs/libdovecot-sieve.so
../../src/lib-sieve-tool/.libs/libsieve-tool.a
../../src/sieve-tools/debug/.libs/libsieve_ext_debug.a -ldovecot-storage
-ldovecot-lda -L/usr/lib/dovecot -ldovecot -lrt -Wl,-rpath
-Wl,/usr/lib/dovecot


Sebastian

-- 
The best thing about a boolean is even if you are wrong, you are only 
off by a bit.


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