Duplicate of issue 19.

Hi,
i have a sony vaio model sz3xp and i have this webcam:

Bus 001 Device 005: ID 05ca:1830 Ricoh Co., Ltd

and i'm running linux 2.6.26, i have installed r5u870 driver and
firmware ad
i have modprobed it,
but when i run vlc /dev/video0 for example i get this error from dmesg:

------------[ cut here ]------------
kernel BUG at drivers/media/video/videobuf-core.c:137!
invalid opcode: 0000 [#1] PREEMPT SMP
Modules linked in: vboxdrv isofs zlib_inflate ipv6 reiserfs joydev usbhid
pcmcia tpm_infineon tpm hid tpm_bios r5u870 usbcam videodev v4l1_compat
serio_raw tifm_7xx1 usb_storage ff_memless ohci1394 i2c_i801
videobuf_dma_sg
videobuf_core ieee1394 psmouse pcspkr tifm_core yenta_socket
rsrc_nonstatic
pcmcia_core sony_laptop nvidia(P) intel_agp agpgart i2c_core sg thermal
processor evdev fan button battery ac snd_hda_intel snd_seq_oss
snd_seq_midi_event snd_seq snd_seq_device snd_hwdep snd_pcm_oss snd_pcm
snd_timer snd_page_alloc snd_mixer_oss snd soundcore arc4 ecb iwl3945
firmware_class mac80211 led_class cfg80211 sky2 rtc_cmos rtc_core rtc_lib
ext3 jbd mbcache sr_mod cdrom sd_mod uhci_hcd ehci_hcd usbcore ata_piix
ata_generic pata_acpi libata scsi_mod dock

Pid: 3957, comm: xawtv Tainted: P          (2.6.26-ARCH #1)
EIP: 0060:[<f8af9190>] EFLAGS: 00210246 CPU: 0
EIP is at videobuf_queue_core_init+0xc0/0xe0 [videobuf_core]
EAX: f8b291b0 EBX: f3060408 ECX: f8aea860 EDX: 00000039
ESI: f8b2f498 EDI: f8b294d0 EBP: 00000000 ESP: f1867df8
 DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068
Process xawtv (pid: 3957, ti=f1866000 task=f41403f0 task.ti=f1866000)
Stack: 00000000 00000000 f73b2000 f3060400 f73b2398 f8ae80a8 00000000
00000001
       00000004 00000078 f3060400 f8aea860 fffffff4 f8b28768 00000000
00000001
       00000004 00000078 f3060400 f413c0c0 22222222 22222222 22222222
00000001
Call Trace:
 [<f8ae80a8>] videobuf_queue_sg_init+0x38/0x40 [videobuf_dma_sg]
 [<f8b28768>] usbcam_v4l_open+0x78/0x210 [usbcam]
 [<f8b3162c>] video_open+0xcc/0x1f0 [videodev]
 [<c018a270>] exact_match+0x0/0x10
 [<c018a5f2>] chrdev_open+0xf2/0x1e0
 [<c0185b2c>] __dentry_open+0xdc/0x2a0
 [<c0185dd7>] nameidata_to_filp+0x47/0x60
 [<c018a500>] chrdev_open+0x0/0x1e0
 [<c019328b>] do_filp_open+0x19b/0x870
 [<c0252c55>] pty_write+0x35/0x60
 [<c024abcb>] tty_put_char+0x2b/0x40
 [<c024faa6>] opost+0xb6/0x260
 [<c012298e>] __wake_up+0x3e/0x60
 [<c024b1e6>] tty_ldisc_deref+0x46/0x70
 [<c01858ef>] do_sys_open+0x5f/0xf0
 [<c01859fc>] sys_open+0x2c/0x40
 [<c0103f73>] sysenter_past_esp+0x78/0xb1
 [<c0310000>] down_write+0x10/0x20
 =======================
Code: 64 c7 8d 83 d0 00 00 00 89 83 d0 00 00 00 89 83 d4 00 00 00 83
c4 04
5b 5e 5f 5d c3 0f 0b eb fe 8d 76 00 0f 0b eb fe 8d 74 26 00 <0f> 0b
eb fe 8d
74 26 00 0f 0b eb fe 8d 74 26 00 0f 0b eb fe 8d
EIP: [<f8af9190>] videobuf_queue_core_init+0xc0/0xe0 [videobuf_core]
SS:ESP
0068:f1867df8
---[ end trace d4026f1bc9664d62 ]---


for now the webcam doesn't works!

Thanks you, and best regards