help with stack trace

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Greetings,

I'm pulling my hair out :-) trying to figure out where to look next so i was hoping someone might recognize this and be able to point me in the right direction.

I have a Pinnacle PC-TV Pro (card=52, tuner=21), a Creative SBLive! sound card (audio from the PC-TV Pro fed into the SBLive via the little cable), and tulip-based ethernet card and brain-dead SiS-based PCI VGA card for what that's worth.

I got a fresh 2.4.18 kernel, patched it to 2.4.19-rc3, applied the v4l2-api-2.4.19-rc3.diff patch, installed videodevX-20020330 from thedirks.com, and finally installed bttv-0.8.43.  Amazingly, everything seemed to go just fine, including insmod-ing video-buf and bttv (card=52 tuner=21).  However, when I try to do something like:

    v4lctl setstation 19

I get a stack dump in /var/log/messages:

Jul 29 00:36:35 scribe kernel: general protection fault: 0000
Jul 29 00:36:35 scribe kernel: CPU:    0
Jul 29 00:36:35 scribe kernel: EIP:    0010:[video_open+167/420]    Not tainted
Jul 29 00:36:35 scribe kernel: EFLAGS: 00010286
Jul 29 00:36:35 scribe kernel: eax: ffffffff   ebx: c885d8b8   ecx: c02db740   edx: c5e95220
Jul 29 00:36:35 scribe kernel: esi: c02db780   edi: c5e5c760   ebp: 00000000   esp: c576ff14
Jul 29 00:36:35 scribe kernel: ds: 0018   es: 0018   ss: 0018
Jul 29 00:36:35 scribe kernel: Process v4lctl (pid: 350, stackpage=c576f000)
Jul 29 00:36:35 scribe kernel: Stack: 00000000 c5e5c760 c5e95220 c1165320 c02db740 c5e95220 ffffffeb c7581000 
Jul 29 00:36:35 scribe kernel:        c0139aa7 c5e95220 c0132112 c5e95220 c5e5c760 c5e5c760 c5e95220 00000000 
Jul 29 00:36:35 scribe kernel:        c01311c5 c5e95220 c5e5c760 00000000 c7581000 00008002 bffffc8c c01310da 
Jul 29 00:36:35 scribe kernel: Call Trace:    [permission+43/48] [chrdev_open+62/76] [dentry_open+225/392] [filp_open+82/92] [sys_open+54/132]
Jul 29 00:36:35 scribe kernel:   [system_call+51/56]
Jul 29 00:36:35 scribe kernel: 
Jul 29 00:36:35 scribe kernel: Code: 8b 10 85 d2 74 1b 52 e8 15 d0 f3 ff 83 c4 04 31 d2 85 c0 74 

and now I really don't have a clue where to go next.  (BTW, this v4lctl is from the xawtv 3.76 build.)  Can anyone please point me in the right direction, considering that I am not by any means a "kernel hacker"?  Thanks!

- Dave





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