[cpia] webcamII + USB + vic : kernel BUG at cpia.c:245!

[Johannes Erdfelt]

On Tue, Mar 07, 2000, Nicolas FAIVRET <nicolas.faivret@ago.fr> wrote:
> First of all, Many thanks to Peter Pregler and to Thomas Davis.
> 
> I get the cpia-0.7.3 drivers, at http://home.eunet.no/~jtotland/vision/. 
> During the installation, I encounter some problems of unresolved symbol 
> because my kernel was compiled with the option version information on module
> 
> symbols. 
> And now everything seem to work fine, 
> 
> # dmesg
> V4L-Driver for Vision CPiA based cameras v0.7.3
> usb.c: registered new driver cpia
> USB CPiA camera found
> cpia.c(30411):goto_low_power(2317):04 00 00 00 00 00 10 00
> cpia.c(30419):goto_high_power(2300):camera now in HIGH power state
> cpia.c(30421):goto_low_power(2314):camera now in LOW power state
> cpia.c(30430):goto_high_power(2300):camera now in HIGH power state
> cpia.c(30443):dispatch_commands(2039):1 1 0 0 1 1 1 1
> cpia.c(30443):dispatch_commands(2040):0 1 1 1 1 1 0 1
> cpia.c(30448):save_camera_state(2334):1/0/0/1/0/0/0/0
> cpia.c(30448):save_camera_state(2338):32/6/92
>   CPiA Version: 1.20 (2.0)
>   CPiA PnP-ID: 0553:0002:0100
>   VP-Version: 1.0 0100
> usb.c: cpia driver claimed interface c3a191e0  
> 
> 
> but when I try 
> # vic localhost/8000 
> V4l: trying /dev/video0... Segmentation fault    
> # dmesg
> V4L-Driver for Vision CPiA based cameras v0.7.3
> usb.c: registered new driver cpia
> USB CPiA camera found
> cpia.c(30411):goto_low_power(2317):04 00 00 00 00 00 10 00
> cpia.c(30419):goto_high_power(2300):camera now in HIGH power state
> cpia.c(30421):goto_low_power(2314):camera now in LOW power state
> cpia.c(30430):goto_high_power(2300):camera now in HIGH power state
> cpia.c(30443):dispatch_commands(2039):1 1 0 0 1 1 1 1
> cpia.c(30443):dispatch_commands(2040):0 1 1 1 1 1 0 1
> cpia.c(30448):save_camera_state(2334):1/0/0/1/0/0/0/0
> cpia.c(30448):save_camera_state(2338):32/6/92
>   CPiA Version: 1.20 (2.0)
>   CPiA PnP-ID: 0553:0002:0100
>   VP-Version: 1.0 0100
> usb.c: cpia driver claimed interface c3a191e0
> kernel BUG at cpia.c:245!
> invalid operand: 0000
> CPU:    0
> EIP:    0010:[<c482610c>]
> EFLAGS: 00010292
> eax: 0000001a   ebx: 00026000   ecx: 00000019   edx: 00000031
> esi: 000e53c8   edi: c4972000   ebp: c4966000   esp: c33bff10
> ds: 0018   es: 0018   ss: 0018
> Process vic (pid: 527, stackpage=c33bf000)
> Stack: c1d26600 00000000 c033d6e0 c3a3e6c0 000005c8 c482e2b0 00031ba5
> c1d266d8
>        00000000 c01ba3b7 c1d266d8 00000000 00000000 c0b7a140 c3d8ccc0
> 00000051
>        00000000 000000ff c02392e1 c028dec0 c013b47a c3d8ccc0 c0b7a140
> c0b7a140
> Call Trace: [<c482e2b0>] [<c01ba3b7>] [<c02392e1>] [<c013b47a>] [<c0139df7>]
> [<c013a0a3>] [<c010a544>]
> Code: 0f 0b 8b 15 2c c5 28 c0 89 f9 81 e1 ff 0f 00 00 0b 4c 32 40          
> 
> Is there anyone who solve this problem ?

I got this when I compiled my kernel for SMP but the CPiA modules were
compiled for UP.

JE