z-push has stopped working

[Paul Klos]

Hi,

Until a few weeks ago (I haven't really had time to look into this) I used 
Mail for Exchange to synch the contacts and calendar on my Nokia N900 to Kolab 
(version 2.3.4).

Suddenly this stopped working. As far as I can tell, I haven't made any 
relevant changes, either to Kolab or to my phone. Obviously, something has 
changed, but I haven't got a clue.

The apache error log shows this (last line, full log attached):

[Fri Dec 02 18:00:40 2011] [error] [client 192.168.10.81] PHP Fatal error:  
Allowed memory size of 268435456 bytes exhausted (tried to allocate 
-2147482625 bytes) in /kolab/var/kolab/www/z-push/backend/kolab.php on line 
3763

I also activated debugging on z-push (debug.txt attached). I get this:

12/02/11 18:14:56 [30162] [paul] Start
12/02/11 18:14:56 [30162] [paul] Z-Push version: 1.5.5-790
12/02/11 18:14:56 [30162] [paul] Client IP: 192.168.10.81
12/02/11 18:14:56 [30162] [paul] Client supports version 2.5
12/02/11 18:15:31 [30162] [paul] KolabBackend Version : 0.7.5.20110619
12/02/11 18:15:31 [30162] [paul] KolabActiveSyndData Version : 20100707
12/02/11 18:15:38 [30162] [paul] Killing process 30149 
12/02/11 18:15:40 [30162] [paul] POST cmd: FolderSync
12/02/11 18:15:40 [30162] [paul] Initializing folder diff engine
12/02/11 18:15:46 [30162] [paul] Unknown:0 Unknown: SECURITY PROBLEM: insecure 
server advertised AUTH=PLAIN (errflg=1) (8)

So php is complaining about memory, and z-push tells me I have a security 
problem. I tried increasing memory_limit to 256MB in php.ini, but that didn't 
help.

Any ideas what this may be? If this insecure server problem is for real, what 
do I need to do to fix it?

Thanks,

Paul
-------------- next part --------------
11/16/11 10:36:37 [15979] [paul] Start
11/16/11 10:36:38 [15979] [paul] Z-Push version: 1.5.5-790
11/16/11 10:36:38 [15979] [paul] Client IP: 193.172.182.93
11/16/11 10:36:38 [15979] [paul] Client supports version 1.0
11/16/11 10:36:39 [15979] [paul] KolabBackend Version : 0.7.5.20110619
11/16/11 10:36:39 [15979] [paul] KolabActiveSyndData Version : 20100707
11/16/11 10:36:39 [15979] [paul] Options request
11/16/11 10:36:39 [15979] [paul] IMAP-errors: SECURITY PROBLEM: insecure server advertised AUTH=PLAIN
11/16/11 10:36:39 [15979] [paul] IMAP connection closed
11/16/11 10:36:39 [15979] [paul] end
11/16/11 10:36:39 [15979] [paul] --------
11/16/11 10:37:48 [16001] [paul] Start
11/16/11 10:37:48 [16001] [paul] Z-Push version: 1.5.5-790
11/16/11 10:37:48 [16001] [paul] Client IP: 193.172.182.93
11/16/11 10:37:48 [16001] [paul] Client supports version 1.0
11/16/11 10:37:48 [16001] [paul] KolabBackend Version : 0.7.5.20110619
11/16/11 10:37:48 [16001] [paul] KolabActiveSyndData Version : 20100707
11/16/11 10:37:49 [16001] [paul] Options request
11/16/11 10:37:49 [16001] [paul] IMAP-errors: SECURITY PROBLEM: insecure server advertised AUTH=PLAIN
11/16/11 10:37:49 [16001] [paul] IMAP connection closed
11/16/11 10:37:49 [16001] [paul] end
11/16/11 10:37:49 [16001] [paul] --------
11/16/11 10:37:49 [16001] [paul] Start
11/16/11 10:37:49 [16001] [paul] Z-Push version: 1.5.5-790
11/16/11 10:37:49 [16001] [paul] Client IP: 193.172.182.93
11/16/11 10:37:49 [16001] [paul] Client supports version 2.5
11/16/11 10:37:50 [16001] [paul] KolabBackend Version : 0.7.5.20110619
11/16/11 10:37:50 [16001] [paul] KolabActiveSyndData Version : 20100707
11/16/11 10:37:51 [16001] [paul] Killing process 14316 
11/16/11 10:37:51 [16001] [paul] POST cmd: FolderSync
11/16/11 10:37:51 [16001] [paul] Initializing folder diff engine
11/16/11 10:37:51 [16001] [paul] Unknown:0 Unknown: SECURITY PROBLEM: insecure server advertised AUTH=PLAIN (errflg=1) (8)
11/16/11 11:11:07 [16006] [paul] Start
11/16/11 11:11:07 [16006] [paul] Z-Push version: 1.5.5-790
11/16/11 11:11:07 [16006] [paul] Client IP: 193.172.182.93
11/16/11 11:11:07 [16006] [paul] Client supports version 1.0
11/16/11 11:11:08 [16006] [paul] KolabBackend Version : 0.7.5.20110619
11/16/11 11:11:08 [16006] [paul] KolabActiveSyndData Version : 20100707
11/16/11 11:11:08 [16006] [paul] Options request
11/16/11 11:11:08 [16006] [paul] IMAP-errors: SECURITY PROBLEM: insecure server advertised AUTH=PLAIN
11/16/11 11:11:08 [16006] [paul] IMAP connection closed
11/16/11 11:11:08 [16006] [paul] end
11/16/11 11:11:08 [16006] [paul] --------
11/16/11 11:11:09 [16006] [paul] Start
11/16/11 11:11:09 [16006] [paul] Z-Push version: 1.5.5-790
11/16/11 11:11:09 [16006] [paul] Client IP: 193.172.182.93
11/16/11 11:11:09 [16006] [paul] Client supports version 2.5
11/16/11 11:11:10 [16006] [paul] KolabBackend Version : 0.7.5.20110619
11/16/11 11:11:10 [16006] [paul] KolabActiveSyndData Version : 20100707
11/16/11 11:11:10 [16006] [paul] Killing process 16001 
11/16/11 11:11:11 [16006] [paul] POST cmd: FolderSync
11/16/11 11:11:11 [16006] [paul] Initializing folder diff engine
11/16/11 11:11:12 [16006] [paul] Unknown:0 Unknown: SECURITY PROBLEM: insecure server advertised AUTH=PLAIN (errflg=1) (8)
12/02/11 17:59:34 [30149] [paul] Start
12/02/11 17:59:34 [30149] [paul] Z-Push version: 1.5.5-790
12/02/11 17:59:34 [30149] [paul] Client IP: 192.168.10.81
12/02/11 17:59:34 [30149] [paul] Client supports version 1.0
12/02/11 17:59:41 [30149] [paul] KolabBackend Version : 0.7.5.20110619
12/02/11 17:59:41 [30149] [paul] KolabActiveSyndData Version : 20100707
12/02/11 17:59:41 [30149] [paul] Options request
12/02/11 17:59:41 [30149] [paul] IMAP-errors: SECURITY PROBLEM: insecure server advertised AUTH=PLAIN
12/02/11 17:59:41 [30149] [paul] IMAP connection closed
12/02/11 17:59:41 [30149] [paul] end
12/02/11 17:59:41 [30149] [paul] --------
12/02/11 18:00:31 [30160] [paul] Start
12/02/11 18:00:31 [30160] [paul] Z-Push version: 1.5.5-790
12/02/11 18:00:31 [30160] [paul] Client IP: 192.168.10.81
12/02/11 18:00:31 [30160] [paul] Client supports version 1.0
12/02/11 18:00:35 [30160] [paul] KolabBackend Version : 0.7.5.20110619
12/02/11 18:00:35 [30160] [paul] KolabActiveSyndData Version : 20100707
12/02/11 18:00:35 [30160] [paul] Options request
12/02/11 18:00:35 [30160] [paul] IMAP-errors: SECURITY PROBLEM: insecure server advertised AUTH=PLAIN
12/02/11 18:00:35 [30160] [paul] IMAP connection closed
12/02/11 18:00:35 [30160] [paul] end
12/02/11 18:00:35 [30160] [paul] --------
12/02/11 18:00:36 [30160] [paul] Start
12/02/11 18:00:36 [30160] [paul] Z-Push version: 1.5.5-790
12/02/11 18:00:36 [30160] [paul] Client IP: 192.168.10.81
12/02/11 18:00:36 [30160] [paul] Client supports version 2.5
12/02/11 18:00:38 [30160] [paul] KolabBackend Version : 0.7.5.20110619
12/02/11 18:00:38 [30160] [paul] KolabActiveSyndData Version : 20100707
12/02/11 18:00:39 [30160] [paul] POST cmd: FolderSync
12/02/11 18:00:39 [30160] [paul] Initializing folder diff engine
12/02/11 18:00:40 [30160] [paul] Unknown:0 Unknown: SECURITY PROBLEM: insecure server advertised AUTH=PLAIN (errflg=1) (8)
12/02/11 18:12:58 [30151] [paul] Start
12/02/11 18:12:58 [30151] [paul] Z-Push version: 1.5.5-790
12/02/11 18:12:58 [30151] [paul] Client IP: 192.168.10.81
12/02/11 18:12:58 [30151] [paul] Client supports version 1.0
12/02/11 18:13:05 [30149] [paul] Start
12/02/11 18:13:05 [30149] [paul] Z-Push version: 1.5.5-790
12/02/11 18:13:05 [30149] [paul] Client IP: 192.168.10.81
12/02/11 18:13:05 [30149] [paul] Client supports version 1.0
12/02/11 18:13:40 [30151] [paul] KolabBackend Version : 0.7.5.20110619
12/02/11 18:13:40 [30151] [paul] KolabActiveSyndData Version : 20100707
12/02/11 18:13:40 [30149] [paul] KolabBackend Version : 0.7.5.20110619
12/02/11 18:13:40 [30149] [paul] KolabActiveSyndData Version : 20100707
12/02/11 18:13:42 [30149] [paul] Options request
12/02/11 18:13:47 [30151] [paul] Options request
12/02/11 18:13:48 [30149] [paul] IMAP-errors: SECURITY PROBLEM: insecure server advertised AUTH=PLAIN
12/02/11 18:13:54 [30151] [paul] IMAP-errors: SECURITY PROBLEM: insecure server advertised AUTH=PLAIN
12/02/11 18:13:54 [30149] [paul] IMAP connection closed
12/02/11 18:13:54 [30151] [paul] IMAP connection closed
12/02/11 18:13:54 [30149] [paul] end
12/02/11 18:13:54 [30149] [paul] --------
12/02/11 18:13:54 [30151] [paul] end
12/02/11 18:13:54 [30151] [paul] --------
12/02/11 18:14:01 [30149] [paul] Start
12/02/11 18:14:01 [30149] [paul] Z-Push version: 1.5.5-790
12/02/11 18:14:01 [30149] [paul] Client IP: 192.168.10.81
12/02/11 18:14:01 [30149] [paul] Client supports version 2.5
12/02/11 18:14:11 [30149] [paul] KolabBackend Version : 0.7.5.20110619
12/02/11 18:14:11 [30149] [paul] KolabActiveSyndData Version : 20100707
12/02/11 18:14:18 [30149] [paul] Killing process 30160 
12/02/11 18:14:23 [30149] [paul] POST cmd: FolderSync
12/02/11 18:14:23 [30149] [paul] Initializing folder diff engine
12/02/11 18:14:36 [30149] [paul] Unknown:0 Unknown: SECURITY PROBLEM: insecure server advertised AUTH=PLAIN (errflg=1) (8)
12/02/11 18:14:56 [30162] [paul] Start
12/02/11 18:14:56 [30162] [paul] Z-Push version: 1.5.5-790
12/02/11 18:14:56 [30162] [paul] Client IP: 192.168.10.81
12/02/11 18:14:56 [30162] [paul] Client supports version 2.5
12/02/11 18:15:31 [30162] [paul] KolabBackend Version : 0.7.5.20110619
12/02/11 18:15:31 [30162] [paul] KolabActiveSyndData Version : 20100707
12/02/11 18:15:38 [30162] [paul] Killing process 30149 
12/02/11 18:15:40 [30162] [paul] POST cmd: FolderSync
12/02/11 18:15:40 [30162] [paul] Initializing folder diff engine
12/02/11 18:15:46 [30162] [paul] Unknown:0 Unknown: SECURITY PROBLEM: insecure server advertised AUTH=PLAIN (errflg=1) (8)
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