Re: Regression in syslog-ng with libglib2.0_0 f2.84.0-1 // GLib:ERROR:../glib/gmain.c:4292:g_main_context_check_unlocked: assertion failed: (i <= 0 || fds[i - 1].fd < fds[i].fd) [libglib2.0_0 2.88.3-1, syslog-ng 3.2.5-3
Takashi Yano via Cygwin <[email protected]>
| Newsgroups | gmane.os.cygwin |
|---|---|
| Message-ID | <[email protected]> |
On Thu, 13 Aug 2026 04:03:01 +0000
Jay Libove Alzina wrote:
> Back a bit over a year ago, Sam Edge reported the below.
> I've just added syslog-ng into a CygWin 64 installation on a Windows 11 Pro system on which I've otherwise run CygWin for years, but I'm getting a similar error, log output starting syslog-ng with -F (foreground) -d (debug), below.
> Two things:
>
> 1. the blocking problem,
> GLib:ERROR:../glib/gmain.c:4292:g_main_context_check_unlocked: assertion failed: (i <= 0 || fds[i - 1].fd < fds[i].fd)
> Bail out! GLib:ERROR:../glib/gmain.c:4292:g_main_context_check_unlocked: assertion failed: (i <= 0 || fds[i - 1].fd < fds[i].fd)
>
> $ cygcheck -c|grep libglib
> libglib2.0_0 2.88.3-1 OK
>
> # so, this is a much newer libglib2 than the one with which Sam reported the error, so much newer that I'm very hesitant (expecting dependency impossibilities) to even try load the older 2.64.6-1 which Sam found to work; and anyway, this much newer, I'd have expected/hoped the problem to have been fixed...)
>
>
> 1. The several "Attempted to register the same plugin multiple times, ignoring" errors.
> This configuration was just installed; the config file created by syslog-ng-config, and edited only to add my network source, and a specific /var/log/messages-mycustomname destination:
>
> The config file:
>
> #############################################################################
> # Based on the Default syslog-ng.conf file which would collect all local logs into a
> # single file called /var/log/messages.
> # Added (enabled) UDP 514 network listening.
> # Added destination as /var/log/messages-MikroTiks for syslog() messages from my MikroTik routers.
> #
>
> @version: 3.2
> @include "scl.conf"
>
> source s_local {
> system();
> internal();
> };
>
>
> source s_network {
> udp();
> };
>
> destination d_local {
> file("/var/log/messages");
> };
>
> destination d_TikLogs {
> file("/var/log/messages-MikroTiks");
> };
>
>
> log {
> source(s_network);
> destination(d_TikLogs);
> };
>
>
> log {
> # We do not expect any locally generated syslog() messages, but ... ?
> source(s_local);
> destination(d_local);
> };
>
>
> The output when I start syslog-ng:
>
> $ syslog-ng -F -d
> Trying to open module; module='syslogformat', filename='/usr/lib/syslog-ng/cygsyslogformat.dll'
> Trying to open module; module='basicfuncs', filename='/usr/lib/syslog-ng/cygbasicfuncs.dll'
> Trying to open module; module='afsocket', filename='/usr/lib/syslog-ng/cygafsocket.dll'
> Trying to open module; module='affile', filename='/usr/lib/syslog-ng/cygaffile.dll'
> Trying to open module; module='afprog', filename='/usr/lib/syslog-ng/cygafprog.dll'
> Trying to open module; module='afuser', filename='/usr/lib/syslog-ng/cygafuser.dll'
> Trying to open module; module='dbparser', filename='/usr/lib/syslog-ng/cygdbparser.dll'
> Trying to open module; module='csvparser', filename='/usr/lib/syslog-ng/cygcsvparser.dll'
> Starting to read include file; filename='/etc/syslog-ng/scl.conf', depth='1'
> Global value changed; define='scl-root', value='/usr/share/syslog-ng/include/scl'
> Global value changed; define='include-path', value='/etc/syslog-ng:/usr/share/syslog-ng/include'
> Starting to read include file; filename='/etc/syslog-ng/modules.conf', depth='2'
> Global value changed; define='autoload-compiled-modules', value='0'
> Attempted to register the same plugin multiple times, ignoring; context='format', name='syslog'
> Attempted to register the same plugin multiple times, ignoring; context='template-func', name='echo'
> Attempted to register the same plugin multiple times, ignoring; context='template-func', name='grep'
> Attempted to register the same plugin multiple times, ignoring; context='template-func', name='if'
> Attempted to register the same plugin multiple times, ignoring; context='source', name='unix-stream'
> Attempted to register the same plugin multiple times, ignoring; context='destination', name='unix-stream'
> Attempted to register the same plugin multiple times, ignoring; context='source', name='unix-dgram'
> Attempted to register the same plugin multiple times, ignoring; context='destination', name='unix-dgram'
> Attempted to register the same plugin multiple times, ignoring; context='source', name='tcp'
> Attempted to register the same plugin multiple times, ignoring; context='destination', name='tcp'
> Attempted to register the same plugin multiple times, ignoring; context='source', name='tcp6'
> Attempted to register the same plugin multiple times, ignoring; context='destination', name='tcp6'
> Attempted to register the same plugin multiple times, ignoring; context='source', name='udp'
> Attempted to register the same plugin multiple times, ignoring; context='destination', name='udp'
> Attempted to register the same plugin multiple times, ignoring; context='source', name='udp6'
> Attempted to register the same plugin multiple times, ignoring; context='destination', name='udp6'
> Attempted to register the same plugin multiple times, ignoring; context='source', name='syslog'
> Attempted to register the same plugin multiple times, ignoring; context='destination', name='syslog'
> Attempted to register the same plugin multiple times, ignoring; context='source', name='file'
> Attempted to register the same plugin multiple times, ignoring; context='source', name='pipe'
> Attempted to register the same plugin multiple times, ignoring; context='destination', name='file'
> Attempted to register the same plugin multiple times, ignoring; context='destination', name='pipe'
> Attempted to register the same plugin multiple times, ignoring; context='source', name='program'
> Attempted to register the same plugin multiple times, ignoring; context='destination', name='program'
> Attempted to register the same plugin multiple times, ignoring; context='destination', name='usertty'
> Attempted to register the same plugin multiple times, ignoring; context='parser', name='db-parser'
> Attempted to register the same plugin multiple times, ignoring; context='parser', name='csv-parser'
> Finishing include; filename='/etc/syslog-ng/modules.conf', depth='2'
> Starting to read include file; filename='/usr/share/syslog-ng/include/scl/system/plugin.conf', depth='2'
> Trying to open module; module='confgen', filename='/usr/lib/syslog-ng/cygconfgen.dll'
> Finishing include; filename='/usr/share/syslog-ng/include/scl/system/plugin.conf', depth='2'
> Starting to read include file; filename='/usr/share/syslog-ng/include/scl/pacct/plugin.conf', depth='2'
> Finishing include; filename='/usr/share/syslog-ng/include/scl/pacct/plugin.conf', depth='2'
> Starting to read include file; filename='/usr/share/syslog-ng/include/scl/syslogconf/plugin.conf', depth='2'
> Finishing include; filename='/usr/share/syslog-ng/include/scl/syslogconf/plugin.conf', depth='2'
> Finishing include; filename='/etc/syslog-ng/scl.conf', depth='1'
> Finishing include; content='source confgen system', depth='1'
> Running application hooks; hook='1'
> Running application hooks; hook='3'
> syslog-ng starting up; version='3.2.5'
> **
> GLib:ERROR:../glib/gmain.c:4292:g_main_context_check_unlocked: assertion failed: (i <= 0 || fds[i - 1].fd < fds[i].fd)
> Bail out! GLib:ERROR:../glib/gmain.c:4292:g_main_context_check_unlocked: assertion failed: (i <= 0 || fds[i - 1].fd < fds[i].fd)
> Aborted
>
>
> Is anyone successfully (I assume, many!) using syslog-ng 3.2.5 in CygWin with a recent libglib2 version (e.g. 2.80whatever)?
> Has anyone (Sam?) more recently encountered and overcome (how?) this problem?
I cannot reproduce the issue:
$ cygcheck -c libglib2.0_0
Cygwin Package Information
Package Version Status
libglib2.0_0 2.88.3-1 OK
$ /usr/sbin/syslog-ng -F -d
Trying to open module; module='syslogformat', filename='/usr/lib/syslog-ng/cygsyslogformat.dll'
Trying to open module; module='basicfuncs', filename='/usr/lib/syslog-ng/cygbasicfuncs.dll'
Trying to open module; module='afsocket', filename='/usr/lib/syslog-ng/cygafsocket.dll'
Trying to open module; module='affile', filename='/usr/lib/syslog-ng/cygaffile.dll'
Trying to open module; module='afprog', filename='/usr/lib/syslog-ng/cygafprog.dll'
Trying to open module; module='afuser', filename='/usr/lib/syslog-ng/cygafuser.dll'
Trying to open module; module='dbparser', filename='/usr/lib/syslog-ng/cygdbparser.dll'
Trying to open module; module='csvparser', filename='/usr/lib/syslog-ng/cygcsvparser.dll'
Starting to read include file; filename='/etc/syslog-ng/scl.conf', depth='1'
Global value changed; define='scl-root', value='/usr/share/syslog-ng/include/scl'
Global value changed; define='include-path', value='/etc/syslog-ng:/usr/share/syslog-ng/include'
Starting to read include file; filename='/etc/syslog-ng/modules.conf', depth='2'
Global value changed; define='autoload-compiled-modules', value='0'
Attempted to register the same plugin multiple times, ignoring; context='format', name='syslog'
Attempted to register the same plugin multiple times, ignoring; context='template-func', name='echo'
Attempted to register the same plugin multiple times, ignoring; context='template-func', name='grep'
Attempted to register the same plugin multiple times, ignoring; context='template-func', name='if'
Attempted to register the same plugin multiple times, ignoring; context='source', name='unix-stream'
Attempted to register the same plugin multiple times, ignoring; context='destination', name='unix-stream'
Attempted to register the same plugin multiple times, ignoring; context='source', name='unix-dgram'
Attempted to register the same plugin multiple times, ignoring; context='destination', name='unix-dgram'
Attempted to register the same plugin multiple times, ignoring; context='source', name='tcp'
Attempted to register the same plugin multiple times, ignoring; context='destination', name='tcp'
Attempted to register the same plugin multiple times, ignoring; context='source', name='tcp6'
Attempted to register the same plugin multiple times, ignoring; context='destination', name='tcp6'
Attempted to register the same plugin multiple times, ignoring; context='source', name='udp'
Attempted to register the same plugin multiple times, ignoring; context='destination', name='udp'
Attempted to register the same plugin multiple times, ignoring; context='source', name='udp6'
Attempted to register the same plugin multiple times, ignoring; context='destination', name='udp6'
Attempted to register the same plugin multiple times, ignoring; context='source', name='syslog'
Attempted to register the same plugin multiple times, ignoring; context='destination', name='syslog'
Attempted to register the same plugin multiple times, ignoring; context='source', name='file'
Attempted to register the same plugin multiple times, ignoring; context='source', name='pipe'
Attempted to register the same plugin multiple times, ignoring; context='destination', name='file'
Attempted to register the same plugin multiple times, ignoring; context='destination', name='pipe'
Attempted to register the same plugin multiple times, ignoring; context='source', name='program'
Attempted to register the same plugin multiple times, ignoring; context='destination', name='program'
Attempted to register the same plugin multiple times, ignoring; context='destination', name='usertty'
Attempted to register the same plugin multiple times, ignoring; context='parser', name='db-parser'
Attempted to register the same plugin multiple times, ignoring; context='parser', name='csv-parser'
Finishing include; filename='/etc/syslog-ng/modules.conf', depth='2'
Starting to read include file; filename='/usr/share/syslog-ng/include/scl/system/plugin.conf', depth='2'
Trying to open module; module='confgen', filename='/usr/lib/syslog-ng/cygconfgen.dll'
Finishing include; filename='/usr/share/syslog-ng/include/scl/system/plugin.conf', depth='2'
Starting to read include file; filename='/usr/share/syslog-ng/include/scl/pacct/plugin.conf', depth='2'
Finishing include; filename='/usr/share/syslog-ng/include/scl/pacct/plugin.conf', depth='2'
Starting to read include file; filename='/usr/share/syslog-ng/include/scl/syslogconf/plugin.conf', depth='2'
Finishing include; filename='/usr/share/syslog-ng/include/scl/syslogconf/plugin.conf', depth='2'
Finishing include; filename='/etc/syslog-ng/scl.conf', depth='1'
Finishing include; content='source confgen system', depth='1'
Running application hooks; hook='1'
Running application hooks; hook='3'
syslog-ng starting up; version='3.2.5'
--
Takashi Yano <[email protected]>
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