linux-kernel - gspca_zc3xx oops

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Date:	Sat, 2 Aug 2008 12:22:18 -0400
From:	"Parag Warudkar" <parag.warudkar@...il.com>
To:	"Linux Kernel Mailing List" <linux-kernel@...r.kernel.org>
Cc:	Serge.A.S@...hka.ru, mxhaard@...rs.sourceforge.net
Subject: gspca_zc3xx oops - 2.6.27-rc1

 4571.473627] usb 8-8.3: new full speed USB device using ehci_hcd and
address 7
[ 4571.571787] usb 8-8.3: configuration #1 chosen from 1 choice
[ 4571.665523] Linux video capture interface: v2.00
[ 4571.713677] gspca: main v2.2.0 registered
[ 4573.740658] usbcore: registered new interface driver zc3xx
[ 4573.765220] zc0301: V4L2 driver for ZC0301[P] Image Processor and
Control Chip v1:1.10
[ 4573.765260] usbcore: registered new interface driver zc0301
[ 4575.305949] BUG: unable to handle kernel NULL pointer dereference
at 00000000
[ 4575.305954] IP: [<f915c2d4>] :gspca_zc3xx:setcontrast+0x34/0xf0
[ 4575.305961] *pdpt = 000000001ac9c001 *pde = 0000000000000000
[ 4575.305964] Oops: 0000 [#1] SMP
[ 4575.305967] Modules linked in: zc0301 gspca_zc3xx gspca_main
videodev v4l1_compat af_packet radeon drm binfmt_misc rfcomm l2cap
bluetooth kvm_intel kvm ppdev ipv6 acpi_cpufreq cpufreq_powersave
cpufreq_stats cpufreq_conservative cpufreq_ondemand freq_table
cpufreq_userspace container video output pci_slot battery
iptable_filter ip_tables x_tables ac sbp2 lp snd_hda_intel snd_pcm_oss
psmouse snd_mixer_oss appledisplay serio_raw pl2303 snd_pcm snd_timer
usbserial snd_page_alloc snd_hwdep pcspkr parport_serial snd soundcore
iTCO_wdt parport_pc parport iTCO_vendor_support intel_agp agpgart
shpchp button pci_hotplug e1000e evdev ext3 jbd mbcache sg sr_mod
cdrom sd_mod usbhid hid usb_storage libusual ahci libata scsi_mod
ohci1394 dock ieee1394 ehci_hcd uhci_hcd usbcore thermal processor fan
thermal_sys fuse
[ 4575.306009]
[ 4575.306011] Pid: 15345, comm: kopete Not tainted (2.6.27-rc1 #3)
[ 4575.306013] EIP: 0060:[<f915c2d4>] EFLAGS: 00010286 CPU: 0
[ 4575.306016] EIP is at setcontrast+0x34/0xf0 [gspca_zc3xx]
[ 4575.306018] EAX: ffffffff EBX: 00000120 ECX: f60f84f8 EDX: 00000000
[ 4575.306019] ESI: f4194000 EDI: 00000000 EBP: f5597c00 ESP: da81bd64
[ 4575.306021]  DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068
[ 4575.306023] Process kopete (pid: 15345, ti=da81a000 task=f5c7fb10
task.ti=da81a000)
[ 4575.306024] Stack: 00000000 f9163c00 f4194000 f5597c00 f559d000
f915d25b 0000000b d9448000
[ 4575.306029]        f45963c0 f4194000 00000300 f559d000 f9151e09
00000000 00000000 f41947bc
[ 4575.306033]        f419479c 00000006 f55fce00 00006000 00000002
00000020 00000001 f91531c0
[ 4575.306038] Call Trace:
[ 4575.306044]  [<f915d25b>] sd_start+0x12b/0x4a0 [gspca_zc3xx]
[ 4575.306048]  [<f9151e09>] vidioc_streamon+0x269/0x340 [gspca_main]
[ 4575.306055]  [<fa1b41b3>] __video_do_ioctl+0x15b3/0x3bb0 [videodev]
[ 4575.306060]  [<c012445a>] resched_task+0x1a/0x60
[ 4575.306065]  [<c0127098>] try_to_wake_up+0xa8/0x140
[ 4575.306068]  [<c0123a2b>] __wake_up_common+0x4b/0x80
[ 4575.306070]  [<c03425a5>] _spin_lock+0x5/0x10
[ 4575.306073]  [<c01b3dd7>] mnt_drop_write+0x57/0x110
[ 4575.306077]  [<c0131963>] current_fs_time+0x13/0x20
[ 4575.306080]  [<c01b0d27>] file_update_time+0x47/0xd0
[ 4575.306083]  [<c01a322e>] pipe_write+0x32e/0x450
[ 4575.306086]  [<fa1b6a85>] video_ioctl2+0xc5/0x210 [videodev]
[ 4575.306090]  [<c0107c65>] __switch_to+0x155/0x160
[ 4575.306094]  [<c012852f>] finish_task_switch+0x1f/0xb0
[ 4575.306096]  [<c0340adb>] schedule+0x24b/0x680
[ 4575.306098]  [<c01a89c8>] vfs_ioctl+0x78/0x90
[ 4575.306101]  [<c01a8c31>] do_vfs_ioctl+0x251/0x2a0
[ 4575.306103]  [<c01a8cd6>] sys_ioctl+0x56/0x70
[ 4575.306105]  [<c0108d3b>] sysenter_do_call+0x12/0x2f
[ 4575.306108]  =======================
[ 4575.306109] Code: 83 ec 04 0f b6 90 da 07 00 00 8b a8 04 02 00 00
0f b6 80 d9 07 00 00 8b 3c 95 f4 dc 15 f9 8b 14 95 d8 dc 15 f9 83 c0
80 89 14 24 <0f> b6 37 0f af f0 8d b6 00 00 00 00 0f b6 83 00 dc 15 f9
0f af
[ 4575.306133] EIP: [<f915c2d4>] setcontrast+0x34/0xf0 [gspca_zc3xx]
SS:ESP 0068:da81bd64
[ 4575.306141] ---[ end trace 0d1ec2bc5f41176e ]---
[ 4702.726818] usb 8-8.3: USB disconnect, address 7
parag@...ag-desktop:/media/New Volume/Backup/Music$ uname -a
Linux parag-desktop 2.6.27-rc1 #3 SMP Thu Jul 31 19:51:41 EDT 2008
i686 GNU/Linux
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