Ok, another run, this time after adding the following to
php_daemon_script;

        curl_setopt($ch, CURLOPT_HTTPHEADER, array(
                        'Connection: Keep-Alive',
                        'Keep-Alive: 300'
        ));

Exec-sum:
No change whatsoever in behaviour, curl_exec still freezes after
processing the 2gb file completely. ~maus was right.

Since i create the "folder" in the cms to hold the media-imported
files before starting the import, i can view the offending 2gb video
as an end-user of my cms. but files that were behind the 2gb video
in the queue never get imported because curl_exec (or something
feeding it) has frozen.

It could be that apache sends the wrong packets, or libcurl rejects
'good' packets, or libcurl just froze completely. I might not have
thought of all possibilities though, that's one of the reasons I
post these mails.

I've run out of ideas again..
And since i've been at it since 05:00, i'll get some sleep now..

opening bell of 2gb import, microsoft network monitor 3.4 again:


89268   21:48:23 8-2-2011       314.7693867     Unavailable-4920        

InternetDomainNameOfApacheServer        WindowsNameOfApacheServer       

HTTP    HTTP:Request, POST /site/cms/php/php_(import_)script.php,

Query:PHPSESSID=bhgnqukbn4v0dbbv25i14ca2o4&action=batchNext     

{HTTP:112, TCP:110, IPv4:1} {{ALL GOOD DATA}}


And the closing bell (the omissions are there because i let the

sniffer app filter by process id -> ip-address) :

363     22:31:16 8-2-2011       676.1139552     Unavailable-4920        
WindowsNameOfApacheServer       InternetDomainOfApacheServer    HTTP    
HTTP:Response, HTTP/1.1, Status: Ok, URL:{OMMITTED BECAUSE OF MEMORY
EXHAUSTION->KILL OF SNIFFER APP}        {HTTP:31, TCP:30, IPv4:29}
{{CONTAINS THE WANTED DATA}}

367     22:31:19 8-2-2011       679.1089487     Unavailable-4920        
WindowsNameOfApacheServer       InternetDomainOfApacheServer    TCP     
TCP:[ReTransmit #363]Flags=...AP..., SrcPort=HTTP(80), DstPort=8372,
PayloadLen=614, Seq=3326586000 - 3326586614, Ack=3291710338, Win=260    
{TCP:30, IPv4:29}

372     22:31:21 8-2-2011       681.6189851     Unavailable-4920        
WindowsNameOfApacheServer       InternetDomainOfApacheServer    TCP     
TCP:Flags=...A...F, SrcPort=HTTP(80), DstPort=8372, PayloadLen=0,
Seq=3326586614, Ack=3291710338, Win=260 {TCP:30, IPv4:29}

376     22:31:25 8-2-2011       685.1089219     Unavailable-4920        
WindowsNameOfApacheServer       InternetDomainOfApacheServer    TCP     
TCP:[ReTransmit #363]Flags=...AP..F, SrcPort=HTTP(80), DstPort=8372,
PayloadLen=614, Seq=3326586000 - 3326586615, Ack=3291710338, Win=260    
{TCP:30, IPv4:29}

384     22:31:37 8-2-2011       697.1089168     Unavailable-4920        
WindowsNameOfApacheServer       InternetDomainOfApacheServer    TCP     
TCP:[ReTransmit #363]Flags=...AP..F, SrcPort=HTTP(80), DstPort=8372,
PayloadLen=614, Seq=3326586000 - 3326586615, Ack=3291710338, Win=260    
{TCP:30, IPv4:29}

400     22:32:01 8-2-2011       721.1089938     Unavailable-4920        
WindowsNameOfApacheServer       InternetDomainOfApacheServer    TCP     
TCP:[ReTransmit #363]Flags=...AP..F, SrcPort=HTTP(80), DstPort=8372,
PayloadLen=614, Seq=3326586000 - 3326586615, Ack=3291710338, Win=260    
{TCP:30, IPv4:29}

431     22:32:49 8-2-2011       769.1090750     Unavailable-4920        
WindowsNameOfApacheServer       InternetDomainOfApacheServer    TCP     
TCP:[ReTransmit #363]Flags=...AP..F, SrcPort=HTTP(80), DstPort=8372,
PayloadLen=614, Seq=3326586000 - 3326586615, Ack=3291710338, Win=260    
{TCP:30, IPv4:29}

485     22:33:49 8-2-2011       829.1041446     Unavailable-4920        
WindowsNameOfApacheServer       InternetDomainOfApacheServer    TCP     
TCP:Flags=...A.R.., SrcPort=HTTP(80), DstPort=8372, PayloadLen=0,
Seq=3326586615, Ack=3291710338, Win=0   {TCP:30, IPv4:29}

550     22:35:38 8-2-2011       938.7487524     Unavailable-676 
WindowsNameOfApacheServer       InternetDomainOfApacheServer    TCP     
TCP:Flags=...A.R.., SrcPort=8372, DstPort=HTTP(80), PayloadLen=0,
Seq=3291710338, Ack=3326586000, Win=0   {TCP:59, IPv4:29}

551     22:35:38 8-2-2011       938.7514250     Unavailable-4920        
InternetDomainOfApacheServer    WindowsNameOfApacheServer       TCP     
TCP:Flags=...A.R.., SrcPort=8372, DstPort=HTTP(80), PayloadLen=0,
Seq=3291710338, Ack=3326586000, Win=0   {TCP:60, IPv4:29}


Please note that packet 550 was apparently from a different cpu
process.

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