1. Does a reboot fix the issue? Do you have put the firmware
in /lib/firmware/?
2. If you replace this part out of isight.c, do you still get the crash?
From:
if (success == 0)
isight_patch_usb_descriptor (dev);
To:
if ((success == 0) && (dev->descriptor.idProduct == 0x8501))
isight_patch_usb_descriptor (dev);
--- M.S.
On Tue, 2007-12-04 at 14:33 -0700, Seán de Búrca wrote:
> I just gave the new patch a shot and I'm still experiencing a problem
> I've been seeing for some time. I get a segmentation fault in
> isight_load_firmware but for what reason I'm unsure. I'm attaching the
> dump I find in dmesg. I'd much appreciate any help anyone can give me.
> Firmware is where it should be. I've tried with both the version from my
> OSX drive and the version in the all-in-one bundle with the same results.
>
> Sean Burke
>
> BUG: unable to handle kernel NULL pointer dereference at virtual address
> 00000002
> printing eip:
> f8bddbba
> *pde = 00000000
> Oops: 0000 [#1]
> PREEMPT SMP
> Modules linked in: cryptomgr crypto_algapi uvcvideo snd_pcm_oss
> snd_mixer_oss snd_seq_oss snd_seq_midi_event snd_seq snd_seq_device
> hci_usb wlan_scan_sta ath_rate_sample(F) ath_pci(F) wlan ath_hal(P) sky2
> usbhid appletouch evdev snd_hda_intel snd_pcm snd_timer snd soundcore
> snd_page_alloc
> CPU: 0
> EIP: 0060:[<f8bddbba>] Tainted: PF VLI
> EFLAGS: 00210282 (2.6.23-gentoo-r3-mactel #1)
> EIP is at isight_load_firmware+0x1ba/0x570 [uvcvideo]
> eax: eaecbcdc ebx: f7f79200 ecx: c189f4c0 edx: fffffffe
> esi: eaecbcdc edi: eaecbccc ebp: f78c4400 esp: eaecbc7c
> ds: 007b es: 007b fs: 00d8 gs: 0033 ss: 0068
> Process modprobe (pid: 6837, ti=eaeca000 task=f78b3550 task.ti=eaeca000)
> Stack: 00000001 c1563ba0 c015535c 00000002 00000044 eb1dc000 eaecbcb8
> ea820000
> 00012ab0 c04bcb00 c04bca40 00000002 00000000 c17d3a14 c04bd150
> 00000000
> 00000000 00000000 00000000 00000000 c1550400 00000000 c012165f
> 00012ab0
> Call Trace:
> [<c015535c>] get_page_from_freelist+0x2ac/0x3a0
> [<c012165f>] enqueue_entity+0xbf/0x230
> [<f8bd6dbb>] uvc_delete+0x24b/0x1e50 [uvcvideo]
> [<c0125c79>] check_preempt_curr_fair+0x59/0x90
> [<c0274caa>] idr_get_empty_slot+0xea/0x270
> [<c0274eb7>] ida_get_new_above+0x87/0x180
> [<c0182e5e>] find_inode+0x3e/0x70
> [<c01ac290>] sysfs_ilookup_test+0x0/0x10
> [<c0182fa6>] ifind+0x46/0xa0
> [<c0182c75>] iput+0x35/0x70
> [<c01ac8c4>] sysfs_addrm_finish+0x34/0x200
> [<c01adb36>] sysfs_create_link+0x96/0x170
> [<c0339517>] usb_match_one_id+0x27/0xc0
> [<c033a3a5>] usb_probe_interface+0x75/0xd0
> [<c02e82ce>] driver_probe_device+0x8e/0x190
> [<c03eb97d>] klist_next+0x5d/0xa0
> [<c02e8510>] __driver_attach+0x80/0x90
> [<c02e768a>] bus_for_each_dev+0x3a/0x60
> [<c02e8136>] driver_attach+0x16/0x20
> [<c02e8490>] __driver_attach+0x0/0x90
> [<c02e7a6b>] bus_add_driver+0x8b/0x1b0
> [<c033a330>] usb_probe_interface+0x0/0xd0
> [<c0339e25>] usb_register_driver+0x95/0x110
> [<f8a4106f>] init_module+0x6f/0x86 [uvcvideo]
> [<c014858f>] sys_init_module+0x15f/0x18d0
> [<c01554a7>] __alloc_pages+0x57/0x2f0
> [<f8bc5000>] crypto_remove_final+0x0/0x50 [crypto_algapi]
> [<c028f55d>] tty_write+0x1bd/0x1d0
> [<c010431e>] sysenter_past_esp+0x5f/0x85
> =======================
> Code: 8b 44 24 20 89 44 24 5c b8 6f 01 be f8 e8 3f a6 68 c7 89 c2 89 44
> 24 60 85 d2 b8 00 02 00 00 89 44 24 64 74 30 8d 74 24 60 89 f0 <ff> 52
> 04 89 f0 8b 5c 24 60 8d 54 24 50 8b 4c 24 20 ff 53 08 89
> EIP: [<f8bddbba>] isight_load_firmware+0x1ba/0x570 [uvcvideo] SS:ESP
> 0068:eaecbc7c
> _______________________________________________
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>
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