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Author Topic: Problems with webcam  (Read 1533 times)
hank
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« on: October 15, 2009, 07:13:22 AM »

I've been compiling kernels with the right modules, but when they're loaded, I get NULL dereferences...

Code:
usb 1-1: new full speed USB device using orion-ehci and address 2
usb 1-1: configuration #1 chosen from 1 choice
Linux video capture interface: v2.00
gspca: main v2.6.0 registered
gspca: probing 054c:0155
Unable to handle kernel NULL pointer dereference at virtual address 000000b1
pgd = deeb4000
[000000b1] *pgd=1ee93031, *pte=00000000, *ppte=00000000
Internal error: Oops: 17 [#1] PREEMPT
Modules linked in: gspca_ov519(+) gspca_main videodev v4l1_compat
CPU: 0    Not tainted  (2.6.31.4 #2)
PC is at gspca_dev_probe+0x50/0x334 [gspca_main]
LR is at vprintk+0x388/0x3d8
pc : [<bf016f28>]    lr : [<c00432a0>]    psr: 40000013
sp : deeaddd4  ip : deeadd2c  fp : deeade08
r10: 00000000  r9 : dee2f100  r8 : bf02202c
r7 : bf022f24  r6 : ded19400  r5 : bf024ddc  r4 : 000006a8
r3 : 00000000  r2 : ffffff9c  r1 : deeadd2c  r0 : 0000001f
Flags: nZcv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment user
Control: 0005397f  Table: 1eeb4000  DAC: 00000015
Process modprobe (pid: 1813, stack limit = 0xdeeac270)
Stack: (0xdeeaddd4 to 0xdeeae000)
ddc0:                                              df2fbb40 00000001 ffffff9c
dde0: dee2f100 bf024ddc ded19400 bf022f24 00000000 deeac000 00000000 deeade1c
de00: deeade0c bf01f0e8 bf016ee8 bf024e44 deeade44 deeade20 c02efd9c bf01f0d4
de20: dee2f120 dee2f154 bf024e0c bf024e0c c0589e78 deeac000 deeade64 deeade48
de40: c0274380 c02efcb8 dee2f120 dee2f154 bf024e0c bf024e0c deeade84 deeade68
de60: c027449c c02742e0 00000000 deeade88 c0274434 bf024e0c deeadeac deeade88
de80: c02736f0 c0274444 df88b738 ded01630 c0568094 bf024e0c 00000060 ded01960
dea0: deeadedc deeadeb0 c0273dd8 c02736b4 bf0237e8 bf024e0c bf024ddc bf024e0c
dec0: bf0237c6 bf024e0c c002cb04 c05991e0 deeadf04 deeadee0 c027488c c0273cac
dee0: bf024ddc bf024e44 bf0237c6 bf024e0c c002cb04 c05991e0 deeadf24 deeadf08
df00: c02ef528 c02747ec 00000000 bf024e44 00018030 40175000 deeadf34 deeadf28
df20: bf02701c c02ef4cc deeadf7c deeadf38 c002c338 bf027010 00000000 00000000
df40: bf027000 00000000 bf024e44 00018030 40175000 00000000 bf024e44 00018030
df60: 40175000 c002cb04 deeac000 00000000 deeadfa4 deeadf80 c006fd2c c002c2e0
df80: 00000003 00000000 0000c9ac 00000000 00018f90 00000080 00000000 deeadfa8
dfa0: c002c980 c006fc78 0000c9ac 00000000 40175000 00026661 00018030 00000000
dfc0: 0000c9ac 00000000 00018f90 00000080 00000000 40175000 00000000 00000000
dfe0: 00018e50 be87c914 0000b484 400ee6f4 60000010 40175000 00000000 00000000
unwind: Index not found bf016f28
Code: e1d110b2 e1d720b4 eb40b0f2 e51b202c (e5d23115)
---[ end trace 33b6a9422a3788cf ]---
root@ubuntu:~# lsmod
Module                  Size  Used by
gspca_ov519            24532  1
gspca_main             22472  1 gspca_ov519
videodev               35044  1 gspca_main,[permanent]
v4l1_compat            16300  1 videodev

Any ideas on how to fix this?
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