systemd integration not working (WAS: Latest git FATAL error)

[Aki Tuomi]

I don't know then. It works for me and I just tried it again. The only reason it would fail would be that HAVE_LIBSYSTEMD is not defined, so it would not be using libsystemd for notify support.

$ sudo systemctl status dovecot
● dovecot.service - Dovecot IMAP/POP3 email server
   Loaded: loaded (/lib/systemd/system/dovecot.service; disabled; vendor preset: enabled)
   Active: active (running) since Mon 2021-04-26 10:30:02 EEST; 2s ago
     Docs: man:dovecot(1)
           https://doc.dovecot.org/
 Main PID: 30213 (dovecot)
   Status: "v2.4.devel (98a1cca054) running"
    Tasks: 4 (limit: 4701)
   Memory: 3.3M
   CGroup: /system.slice/dovecot.service
           ├─30213 /home/cmouse/dovecot/sbin/dovecot -F
           ├─30214 dovecot/anvil
           ├─30215 dovecot/log
           └─30216 dovecot/config

You can tell from the "Status" line that it's using Type=notify.

Aki

> On 26/04/2021 10:29 Joan Moreau <jom at grosjo.net> wrote:
> 
> 
> Yes, I do run autogen.sh after every "git pull"
> 
> 
> On 2021-04-26 08:21, Aki Tuomi wrote:
> > The current autoconf code is bit buggy, but if you do indeed have libsystemd-dev installed it should do the right thing and will work with systemd even if you have Type=notify.
> > 
> > This has been actually tested, so if it's not working, then something else is wrong.
> > 
> > Did you remember to run ./autogen.sh after pulling from git to make sure you get new configure script? 
> > 
> > Aki
> > 
> > 
> > > On 26/04/2021 10:11 Joan Moreau <jom at grosjo.net> wrote:
> > > 
> > > 
> > > Yes systemd is installed (and the "dev" files as well)
> > > 
> > > 
> > > On 2021-04-26 06:23, Aki Tuomi wrote:
> > > > This is because you are not compiling with libsystemd-dev installed. I guess we need to make some service template that use type simple when you don't use libsystemd.
> > > > 
> > > > Aki
> > > > 
> > > > 
> > > > 
> > > > > On 25/04/2021 22:53 Joan Moreau <jom at grosjo.net> wrote:
> > > > > 
> > > > > 
> > > > > Yes, it seems fixed with this patch :)
> > > > > 
> > > > > Another bug with git, is the "type=" in systemd is switched from "simple" to "notify". The later does not work and reverting to "simple" does work
> > > > > 
> > > > > 
> > > > > On 2021-04-25 17:53, Aki Tuomi wrote:
> > > > > > > On 24/04/2021 21:56 Joan Moreau <jom at grosjo.net> wrote:
> > > > > > > 
> > > > > > > 
> > > > > > > chroot= does not resolve the issue
> > > > > > > I have "chroot = login" in my conf
> > > > > > > 
> > > > > > 
> > > > > > Thanks!
> > > > > > 
> > > > > > The chroot was needed to get the core dump.
> > > > > > 
> > > > > > Can you try if this does fix the crash?
> > > > > > 
> > > > > > Aki
> > > > > > 
> > > > > > From 1df4e02cbff710ce8938480b07a5690e37f661f6 Mon Sep 17 00:00:00 2001
> > > > > > From: Timo Sirainen <timo.sirainen at open-xchange.com>
> > > > > > Date: Fri, 23 Apr 2021 16:43:36 +0300
> > > > > > Subject: [PATCH] login-common: Fix handling destroyed_clients linked list
> > > > > > 
> > > > > > The client needs to be removed from destroyed_clients linked list before
> > > > > > it's added to client_fd_proxies linked list.
> > > > > > 
> > > > > > Broken by 1c622cdbe08df2f642e28923c39894516143ae2a
> > > > > > ---
> > > > > >  src/login-common/client-common.c | 11 +++++++----
> > > > > >  1 file changed, 7 insertions(+), 4 deletions(-)
> > > > > > 
> > > > > > diff --git a/src/login-common/client-common.c b/src/login-common/client-common.c
> > > > > > index bdb6e9c798..1d264d9f75 100644
> > > > > > --- a/src/login-common/client-common.c
> > > > > > +++ b/src/login-common/client-common.c
> > > > > > @@ -289,8 +289,9 @@ void client_disconnect(struct client *client, const char *reason,
> > > > > >  /* Login was successful. We may now be proxying the connection,
> > > > > >  so don't disconnect the client until client_unref(). */
> > > > > >  if (client->iostream_fd_proxy != NULL) {
> > > > > > + i_assert(!client->fd_proxying);
> > > > > >  client->fd_proxying = TRUE;
> > > > > > - i_assert(client->prev == NULL && client->next == NULL);
> > > > > > + DLLIST_REMOVE(&destroyed_clients, client);
> > > > > >  DLLIST_PREPEND(&client_fd_proxies, client);
> > > > > >  client_fd_proxies_count++;
> > > > > >  }
> > > > > > @@ -307,8 +308,9 @@ void client_destroy(struct client *client, const char *reason)
> > > > > >  
> > > > > >  if (last_client == client)
> > > > > >  last_client = client->prev;
> > > > > > - /* remove from clients linked list before it's added to
> > > > > > - client_fd_proxies. */
> > > > > > + /* move to destroyed_clients linked list before it's potentially
> > > > > > + added to client_fd_proxies. */
> > > > > > + i_assert(!client->fd_proxying);
> > > > > >  DLLIST_REMOVE(&clients, client);
> > > > > >  DLLIST_PREPEND(&destroyed_clients, client);
> > > > > >  
> > > > > > @@ -409,13 +411,14 @@ bool client_unref(struct client **_client)
> > > > > >  DLLIST_REMOVE(&client_fd_proxies, client);
> > > > > >  i_assert(client_fd_proxies_count > 0);
> > > > > >  client_fd_proxies_count--;
> > > > > > + } else {
> > > > > > + DLLIST_REMOVE(&destroyed_clients, client);
> > > > > >  }
> > > > > >  i_stream_unref(&client->input);
> > > > > >  o_stream_unref(&client->output);
> > > > > >  i_close_fd(&client->fd);
> > > > > >  event_unref(&client->event);
> > > > > >  
> > > > > > - DLLIST_REMOVE(&destroyed_clients, client);
> > > > > >  i_free(client->proxy_user);
> > > > > >  i_free(client->proxy_master_user);
> > > > > >  i_free(client->virtual_user);