Videotext application crashes the kernel due to DVB-demux patch

[Chicken Shack <chicken.shack@gmx.de>]

Hi,

here is a link to a patch which breaks backwards compatibility for a
teletext software called alevt-dvb.

http://www.mail-archive.com/linuxtv-commits@linuxtv.org/msg04638.html

The kernel patch was introduced with kernel 2.6.32-rc1.
It was Signed-off-by Brandon Philips, Mauro Carvalho Chehab and its
author, Andreas Oberritter.

Previous help calls, not only on this list, have been ignored for
reasons that I do not know.
Even distro maintainers have given up and removed the DVB implementation
of alevt from their distro list.

Is that really what things are up to?
To pull through an API update by kernel patch, but simply dive off with
the usual "Sorry, but I don't have no time" when objections or problems
arise?

What the hell is going on in those peoples' minds?

It seems to me that the following disclaimer is worth nothing:

"If anyone has any objections, please let us know by sending a message
to: Linux Media Mailing List <linux-me...@vger.kernel.org>"

Volunteers welcome! Who please consacres some time and DVB competence to
give the appropriate hints please?

Regards

CS

P. S.: This is how the kernel crash looks like:

brian:~# alevt
alevt: SDT: service_id 0xcf24 not in PAT

sid:pmtpid:ttpid:type:provider:name:language:texttype:magazine:page

28006:100:130:1:ZDFvision:ZDF:lang=deu:type=1:magazine=1:page=  0
28011:600:630:1:ZDFvision:ZDFinfokanal:lang=deu:type=1:magazine=1:page=
0
28014:650:630:1:ZDFvision:zdf_neo:lang=deu:type=1:magazine=1:page=  0
28016:1100:630:1:ZDFvision:ZDFtheaterkanal:lang=deu:type=1:magazine=1:page=  0
28007:200:230:1:ZDFvision:3sat:lang=deu:type=1:magazine=1:page=  0
28008:300:330:1:ZDFvision:KiKa:lang=deu:type=1:magazine=1:page=  0
28017:411:8191:2:ZDFvision:DRadio Wissen:lang=:type=0:magazine=0:page=
0
28012:700:8191:2:ZDFvision:DKULTUR:lang=:type=0:magazine=0:page=  0
28013:800:8191:2:ZDFvision:DLF:lang=:type=0:magazine=0:page=  0

Using: Service ID = 28006 ; PMT PID = 100 ; TXT PID = 130 ;
Service type = 1 ; Provider Name = ZDFvision ; Service name = ZDF ;
language = deu ; Text type = 1 ; Text Magazine = 1 ; Text page =   0
alevt: ioctl: DMX_SET_PES_FILTER Invalid argument (22)
Getötet
brian:~# 
Message from syslogd@brian at Jan 31 19:52:33 ...
 kernel:[  116.563487] Oops: 0000 [#1] PREEMPT SMP 

Message from syslogd@brian at Jan 31 19:52:33 ...
 kernel:[  116.563492] last sysfs
file: /sys/devices/pci0000:00/0000:00:1d.7/usb1/1-0:1.0/uevent

Message from syslogd@brian at Jan 31 19:52:33 ...
 kernel:[  116.563589] Process alevt (pid: 1780, ti=e7934000
task=e7915be0 task.ti=e7934000)

Message from syslogd@brian at Jan 31 19:52:33 ...
 kernel:[  116.563592] Stack:

Message from syslogd@brian at Jan 31 19:52:33 ...
 kernel:[  116.563622] Call Trace:

Message from syslogd@brian at Jan 31 19:52:33 ...
 kernel:[  116.563650] Code: f2 da 4c c8 8d 56 78 89 54 24 04 89 d0 e8
e4 da 4c c8 89 f0 e8 31 ff ff ff 83 7e 4c 01 76 73 83 7e 48 02 75 49 8b
46 04 8d 48 f8 <8b> 41 08 8d 58 f8 8d 7e 04 eb 28 8b 41 08 8b 51 0c 89
50 04 89 

Message from syslogd@brian at Jan 31 19:52:33 ...
 kernel:[  116.563697] EIP: [<f8cec1b2>] dvb_demux_release+0x43/0x183
[dvb_core] SS:ESP 0068:e7935f58

Message from syslogd@brian at Jan 31 19:52:33 ...
 kernel:[  116.563706] CR2: 0000000000000000

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