Segfaults using xawtv

From: John Coppens (
Date: Tue Oct 10 2000 - 10:07:15 EST


I _hate_ to do this, but I couldn't find (except for a reference to
"others who have segfaults using glibc") no reference to this problem.
Insmod of i2c, videodev and bttv succeed without problems or any message
in /var/log/debug, messages or syslog.

Also, though I'm surely no expert, I tested a bit with gdb & such, and
suspect there may be a problem that's not directly xawtv/bttv related.

Any suggestions?



insmod i2c
insmod videodev
(insmod tuner type=4)
insmod bttv card=30


i2c: initialized
Linux video capture interface: v1.00
bttv0: Brooktree Bt878 (rev 2) bus: 0, devfn: 80, irq: 5, memory: 0xe7000000.
PCI: Enabling bus mastering for device 00:50
bttv: 1 Bt8xx card(s) found.
bttv0: NO fader chip: TEA6300
bttv0: model: BT878


Module Size Used by
tuner 2180 1
bttv 33824 0
videodev 2592 2 [bttv]
i2c 3488 2 [tuner bttv]
ppp_deflate 40800 0 (autoclean)
ide-cd 23924 1 (autoclean)
cdrom 27324 0 (autoclean) [ide-cd]
bsd_comp 3816 0
lp 4728 0 (unused)


xawtv: 3.21
bttv: 0.7.44
kernel: 2.2.16, with USB and I2C patches
TV norm here: PAL/N, which is US channel spacing, Euro-50Hz PAL image.
  but I'm testing with a PAL-B camera.
board: Flyvideo 98
error messages: see below


(I recompiled with -ggdb, to get more info. The error messages are the same
 using -g or -ggdb)

Starting program: /usr/local/src/multimedia/xawtv-3.21/src/xawtv
This is xawtv-3.21, running on Linux/i586 (2.2.16)
visual: id=0x22 class=4 (TrueColor), depth=24
x11: 1024x768, 32 bit/pixel, 4096 byte/scanline, DGA
waitpid: No child processes
waitpid: No child processes
Program received signal SIGSEGV, Segmentation fault.
0x4021c27d in memset () from /lib/
(gdb) bt
#0 0x4021c27d in memset () from /lib/
#1 0x806f8e6 in capability ()
#2 0x8055fb7 in grabber_open (device=0x8061cd1 "/dev/video", sw=1024, sh=768,
    base=0xe5400000, format=8, width=4096) at grab.c:111
#3 0x8050c88 in grabber_init () at xt.c:303
#4 0x8050579 in main (argc=1, argv=0xbffff784) at main.c:2365

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This archive was generated by hypermail 2b29 : Sun Oct 15 2000 - 21:00:15 EST