[Bug 300865] [NEW] zvbi-ntsc-cc crashes with SIGSEGV

[dfreedman]

Public bug reported:

Binary package hint: zvbi

I just upgraded from 7.10 to 8.10... Everything went smoothly except for
my closed caption decoder software. I couldn't get my source to run, so
I tried the package zvbi (which contains zvbi-ntsc-cc). Same problem.

The software crashes when I run
zvbi-ntsc-cc -d /dev/video0 -c

a gdb bt shows SIGSEGV

#0  0x0000000000000000 in ?? ()
#1  0x0000000000414f91 in _vbi_log_vprintf (log_fn=0, user_data=0x0, 
    mask=VBI_LOG_INFO, source_file=0x43130c "io-v4l2k.c", 
    context=0x4324a0 "vbi_capture_v4l2k_new", 
    templ=0x430c38 "Failed with errno %d, errmsg '%s'.", ap=0x7fff79b9c980)
    at misc.c:423
#2  0x000000000041504d in _vbi_log_printf (log_fn=0x40, 
    user_data=0x7fff79b9c880, mask=20944512, source_file=0x0, 
    context=0x13f9670 "p", templ=0x7fd270a70a00 "") at misc.c:446
#3  0x00000000004138b4 in vbi_capture_v4l2k_new (
    dev_name=0x7fff79b9d700 "/dev/vbi0", fd=-1, buffers=5, 
    services=0x7fff79b9cc6c, strict=1, errstr=0x7fff79b9cc60, trace=0)
    at io-v4l2k.c:1485
#4  0x000000000040acb5 in vbi_capture_v4l2_new (
    dev_name=0x7fff79b9d700 "/dev/vbi0", buffers=5, services=0x7fff79b9cc6c, 
    strict=1, errstr=0x7fff79b9cc60, trace=0) at io-v4l2.c:152
#5  0x0000000000404bf2 in main (argc=<value optimized out>, 
    argv=<value optimized out>) at ntsc-cc.c:1788

Note the ntsc-cc file number is incorrect because I have modified the
source. Also If it helps here's a dmesg | grep bttv

[   16.453927] bttv: driver version 0.9.17 loaded
[   16.453930] bttv: using 8 buffers with 2080k (520 pages) each for capture
[   16.455393] bttv: Bt8xx card found (0).
[   16.455732] bttv 0000:01:05.0: PCI INT A -> Link[APC1] -> GSI 16 (level, low) -> IRQ 16
[   16.455742] bttv0: Bt878 (rev 2) at 0000:01:05.0, irq: 16, latency: 32, mmio: 0xd5100000
[   16.455751] bttv0: detected: STB TV PCI FM, Gateway P/N 6000704 [card=40], PCI subsystem ID is 10b4:2636
[   16.455753] bttv0: using: STB TV PCI FM, Gateway P/N 6000704 (bt878), 3Dfx VoodooTV 100 [card=40,autodetected]
[   16.455787] bttv0: gpio: en=00000000, out=00000000 in=00ffffff [init]
[   16.455834] bttv0: tuner type=2
[   16.455836] bttv0: i2c: checking for TDA9875 @ 0xb0... not found
[   16.456450] bttv0: i2c: checking for TDA7432 @ 0x8a... found
[   16.638853] bttv0: registered device video0
[   16.638886] bttv0: registered device vbi0
[   16.638918] bttv0: registered device radio0
[   16.643372] bttv0: PLL: 28636363 => 35468950 .. ok

** Affects: zvbi (Ubuntu)
     Importance: Undecided
         Status: New

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zvbi-ntsc-cc crashes with SIGSEGV
https://bugs.launchpad.net/bugs/300865
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