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Date:	Mon, 5 May 2025 23:05:48 -0600
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Subject:	Re: Regression in syslog-ng with libglib2.0_0 f2.84.0-1
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From:	Brian Inglis via Cygwin <cygwin AT cygwin DOT com>
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On 2025-05-04 13:14, Sam Edge via Cygwin wrote:
> On 28/03/2025 11:20, Sam Edge via Cygwin wrote:
>> On 28/03/2025 11:00, Sam Edge via Cygwin wrote:
>>>
>>> I've had a weird regression with syslog-ng recently. Dunno if it's
>>> related to a new release of the Cygwin DLL because I've only just
>>> spotted it.
>>>
>>> When I try to start syslog-ng as a service recently it fails to load
>>> with the following in /var/log/syslog-ng.log.
>>>
>>> cat /var/log/syslog-ng.log
>>> **
>>> GLib:ERROR:../glib/gmain.c:4090:g_main_context_check_unlocked: assertion
>>> failed: (i <= 0 || fds[i - 1].fd < fds[i].fd)
>>> Bail out! GLib:ERROR:../glib/gmain.c:4090:g_main_context_check_unlocked:
>>> assertion failed: (i <= 0 || fds[i - 1].fd < fds[i].fd)
>>>
>>> I've attached my cygcheck and the contents of /etc/syslog-ng.
>>>
>>> Any ideas?
>>>
>>> The failing machine is running Windows 11 Pro I'm using the UDP output
>>> of syslog-ng to generate warning emails when successful sshd/http logins
>>> occur from public IP addresses on the heavily armoured syslog server so
>>> I'm loathe to do it but I'll try upgrading the Cygwin DLL on another
>>> non-critical but Windows 10 machine to see how that goes.

>> Okay, a bit more info.
>>
>> I've just upgraded my Cygwin installation on a Windows 10 machine & it
>> too is now exhibiting the fault.
>>
>> Attached are the pre- & post-upgrade cygchecks. Doing a diff it appears
>> that libglib2.0_0 has also been upgraded, amongst other things, so maybe
>> that's the source of the new error.
>>
>> Ah-ha! If I downgrade libglib2.0_0 from 2.84.0-1 back to 2.64.6-1 the
>> problem goes away.
> Calling the maintainer for syslog-ng and/or libglib2.0. The latest Cygwin 
> release of these packages are still exhibiting the same assertion.
> 
> If syslog-ng has become orphaned could someone please let me know and I'll check 
> it out myself and try to locate the problem.

Check the package sources for status:

	https://cygwin.com/packages/summary/syslog-ng-src.html

which are based on sources from 2011 that no longer appear to be available 
online, although other old releases appear to be available from github: latest 
is 4.8.1 under L/GPL;

	https://cygwin.com/packages/summary/glib2.0-src.html

which recently jumped 20 minor versions in 2 years!

-- 
Take care. Thanks, Brian Inglis              Calgary, Alberta, Canada

La perfection est atteinte                   Perfection is achieved
non pas lorsqu'il n'y a plus rien à ajouter  not when there is no more to add
mais lorsqu'il n'y a plus rien à retrancher  but when there is no more to cut
                                 -- Antoine de Saint-Exupéry

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