linux-kernel - [ 88.628451] BUG: unable to handle kernel paging request at f8dbf000 "isight

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Date:	Wed, 4 Jun 2008 19:13:46 +0000
From:	"Justin Mattock" <justinmattock@...il.com>
To:	"Linux Kernel Mailing List" <linux-kernel@...r.kernel.org>
Subject: [ 88.628451] BUG: unable to handle kernel paging request at f8dbf000 "isight_firmware"

Yesterday I compiled the isight_firmware module, and was happy with
the result's, "no more udev",
This morning I wasn't so lucky, upon a cold boot my system was stuck
during boot, I tried numerous boot's but still the same results,
luckily I was hoping to gather the info on what was going on here it is:

[   88.517109] firmware: requesting isight.fw
[   88.628451] BUG: unable to handle kernel paging request at f8dbf000
[   88.628463] IP: [<f8bc90f7>] :isight_firmware:isight_firmware_load+0xf2/0x1c3
[   88.628474] *pde = 375a8067 *pte = 00000000
[   88.628483] Oops: 0000 [#1] SMP
[   88.628490] Modules linked in: isight_firmware(+) hci_usb
cpufreq_ondemand cpufreq_performance cpufreq_powersave rfcomm hidp
l2cap bluetooth fan ipmi_watchdog ipmi_msghandler uvcvideo uinput
wlan_tkip ieee80211_crypt_tkip ieee80211_crypt arpt_mangle
arptable_filter arp_tables nf_conntrack_ipv4 nf_conntrack
iptable_mangle iptable_filter ip_tables x_tables i2c_i810 i2c_algo_bit
coretemp eeprom acpi_cpufreq fglrx(P) agpgart appletouch joydev
applesmc wlan_scan_sta firewire_ohci firewire_core ath_rate_sample
snd_hda_intel snd_pcm ath_pci ohci1394 snd_timer snd_page_alloc
snd_hwdep wlan ieee1394 ath_hal(P) evdev ehci_hcd uhci_hcd pata_acpi
button thermal video processor
[   88.628581]
[   88.628587] Pid: 2568, comm: modprobe Tainted: P
(2.6.26-rc4-00173-gd53a1a8 #6)
[   88.628593] EIP: 0060:[<f8bc90f7>] EFLAGS: 00010207 CPU: 0
[   88.628600] EIP is at isight_firmware_load+0xf2/0x1c3 [isight_firmware]
[   88.628606] EAX: f2120150 EBX: 00000032 ECX: 0000000a EDX: c17f5638
[   88.628610] ESI: f8dbf000 EDI: f2120158 EBP: f2111dac ESP: f2111d7c
[   88.628615]  DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068
[   88.628621] Process modprobe (pid: 2568, ti=f2110000 task=f5495380
task.ti=f2110000)
[   88.628625] Stack: 00003def f2120150 f5728c90 00000578 f8dbeff8
c02b3854 f5728ff8 00006743
[   88.628640]        f492c700 f571ef50 f8bc97c4 f8bc9750 f2111dc8
c02b42d4 f5728c90 00000000
[   88.628654]        f571ef6c 00000000 f8bc9790 f2111ddc c026e58e
f571ef6c f571f054 f8bc9790
[   88.628667] Call Trace:
[   88.628676]  [<c02b3854>] ? usb_autopm_do_device+0xb1/0xb9
[   88.628694]  [<c02b42d4>] ? usb_probe_interface+0xc0/0xee
[   88.628707]  [<c026e58e>] ? driver_probe_device+0xa0/0x11b
[   88.628720]  [<c026e646>] ? __driver_attach+0x3d/0x5f
[   88.628731]  [<c026ddea>] ? bus_for_each_dev+0x3b/0x5d
[   88.628744]  [<c026e425>] ? driver_attach+0x14/0x16
[   88.628753]  [<c026e609>] ? __driver_attach+0x0/0x5f
[   88.628762]  [<c026e180>] ? bus_add_driver+0x9a/0x1aa
[   88.628775]  [<c026e7c3>] ? driver_register+0x71/0xcd
[   88.628783]  [<c016427e>] ? __vunmap+0x93/0x9b
[   88.628797]  [<c02b3f01>] ? usb_register_driver+0x71/0xcb
[   88.628808]  [<f8be6017>] ? isight_firmware_init+0x17/0x19 [isight_firmware]
[   88.628818]  [<c0140d4a>] ? sys_init_module+0x163c/0x17ea
[   88.628835]  [<c020fe2e>] ? prio_tree_insert+0x1c/0x1cb
[   88.628854]  [<c0160f21>] ? vma_link+0xc0/0xce
[   88.628866]  [<c0161597>] ? mmap_region+0x2ca/0x377
[   88.628877]  [<c016ec1c>] ? __kmalloc+0x0/0xdb
[   88.628905]  [<c01038fa>] ? syscall_call+0x7/0xb
[   88.628925]  =======================
[   88.628928] Code: e9 8e 00 00 00 83 7d d0 32 bb 32 00 00 00 0f 4e
5d d0 ba d0 00 00 00 89 d8 e8 32 5b 5a c7 89 d9 8b 75 e0 c1 e9 02 89
45 d4 89 c7 <f3> a5 89 d9 83 e1 03 74 02 f3 a4 8b 45 d8 b9 a0 00 00 00
8b 10
[   88.629002] EIP: [<f8bc90f7>] isight_firmware_load+0xf2/0x1c3
[isight_firmware] SS:ESP 0068:f2111d7c
[   88.629015] ---[ end trace 0d6c893753a1cd98 ]---

like I said yesterday there was no problem at all, maybe because the
system was warm from being on all day.
after renaming isight_firmware.ko so I can boot up the system runs fine.
hope this helps in the kernel development.
regards;
-- 
Justin P. Mattock
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