[ts-7000] Kernel Panic using spca5xx

["Fabio Vaz" <>]

Dear Friends,

I'm using spca5xx driver and vgrabbj or videodog to capture pictures 
using usb webcam. On kernel 2.4.26-rc1 when I use vga resolution the 
kernel hangs. I tried many camera models geting the same error.

If I use kernel 2.6.23 it works fine with any resolution.

If I use a lower resolution it works fine (352x288): 
vgrabbj -o jpg -f t.jpg  -d /dev/video0 -i cif


The command I use for vga (640x480) is : 
vgrabbj -o jpg -f t.jpg  -d /dev/video0 -i vga

It stops the kernel and gives the following message : 

Unable to handle kernel NULL pointer dereference at virtual address 
00000000
pgd = c535c000
[00000000] *pgd=0573e801, *pmd = 0573e801, *pte = 00000000, *ppte = 
00000000
Internal error: Oops: 807
CPU: 0
pc : [<c023bb40>]    lr : [<c023bb3c>]    Not tainted
sp : c14a7f0c  ip : 60000013  fp : c14a7fac
r10: c037e000  r9 : ffffffff  r8 : 60000093
r7 : 00000000  r6 : c0380020  r5 : c4668008  r4 : c4668008
r3 : 00000000  r2 : 00000000  r1 : c466800c  r0 : 00000000
Flags: nZCv  IRQs on  FIQs on  Mode SVC_32  Segment user
Control: C000317F  Table: 0535C000  DAC: 00000015
Process sh (pid: 5144, stack limit = 0xc14a6368)
Stack: (0xc14a7f0c to 0xc14a8000)
7f00:                            00000001 c0380078 fffffff6 c039ec40 
c023b930
7f20: c14a7f6c c14a7f80 00000001 c023376c 20000013 c022a4a0 0545c000 
00000060
7f40: c545c000 3c000060 c07d4120 c14a6000 c14a6000 c448c000 00000000 
c037e000
7f60: c037e000 c14a7fac 00000000 c14a7f80 c0234448 c023376c 20000013 
ffffffff
7f80: c0380000 c0380ce4 2aab58b4 00000000 c0003177 00000000 c14a6000 
0009f458
7fa0: 00000000 c14a7fb0 c022a848 c0234198 ffffffff 7ffffb74 00000000 
00000000
7fc0: 000a7ba8 00000000 00000000 00000001 00000000 00000000 0009f458 
7ffffb74
7fe0: 0009ce6c 7ffffb68 0009cd38 2aab58b4 60000010 ffffffff 68f034e5 
708aa018
Backtrace:
Function entered at [<c0234188>] from [<c022a848>]
Code: e5955000 1a000006 eb045165 e3500000 (05800000)
Kernel panic: Aiee, killing interrupt handler!
In interrupt handler - not syncing




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