linux-2.6.15/lirc-0.7.2-lirc_streamzap Oops

[Christopher D. <cdo...@ic...>]

I have a situation that is possibly similar to one that was posted here
in September. When the uhci_hcd module is inserted (and hotplug loads
the driver for streamzap) the following occurs:

usbcore: registered new driver usbfs
usbcore: registered new driver hub
USB Universal Host Controller Interface driver v2.3
ACPI: PCI Interrupt 0000:00:1f.2[D] -> Link [LNKD] -> GSI 9 (level, low)
-> IRQ 9
PCI: Setting latency timer of device 0000:00:1f.2 to 64
uhci_hcd 0000:00:1f.2: UHCI Host Controller
uhci_hcd 0000:00:1f.2: new USB bus registered, assigned bus number 1
uhci_hcd 0000:00:1f.2: irq 9, io base 0x0000ef80
hub 1-0:1.0: USB hub found
hub 1-0:1.0: 2 ports detected
usb 1-1: new low speed USB device using uhci_hcd and address 2
lirc_dev: IR Remote Control driver registered, at major 61
lirc_streamzap[-1]: Streamzap, Inc. Streamzap Remote Control on usb1:2
attached
lirc_dev: lirc_register_plugin: sample_rate: 0
Unable to handle kernel NULL pointer dereference at virtual address 00000000
 printing eip:
c01f5685
*pde = 00000000
Oops: 0000 [#1]
PREEMPT
Modules linked in: lirc_streamzap lirc_dev uhci_hcd usbcore nvidia
agpgart snd_pcm_oss snd_mixer_oss snd_seq_midi snd_seq_midi_event
snd_seq snd_ens1371 snd_rawmidi snd_seq_device snd_ac97_codec snd_pcm
snd_timer snd soundcore snd_page_alloc snd_ac97_bus autofs4
CPU:    0
EIP:    0060:[<c01f5685>]    Tainted: P      VLI
EFLAGS: 00010216   (2.6.15)
EIP is at vsnprintf+0x7a/0x49c
eax: 00000000   ebx: c15de950   ecx: 00000000   edx: 000000d0
esi: d636ddb0   edi: c15dea60   ebp: e0893820   esp: d636dd58
ds: 007b   es: 007b   ss: 0068
Process modprobe (pid: 2932, threadinfo=d636c000 task=d63435a0)
Stack: 00000286 00000084 00000000 c15de963 c15de8e0 fffffff4 c15dea60
e0893820
       c02431bb c15de950 00000014 00000000 d636ddb0 00000020 00000000
d63e3800
       e0891577 c15dea60 03d00000 00000000 e08926e9 00000000 d6381898
00000000
Call Trace:
 [<c02431bb>] class_device_create+0x6f/0x8d
 [<e0891577>] lirc_register_plugin+0x312/0x3da [lirc_dev]
 [<e099ad28>] streamzap_probe+0x3e0/0x4b0 [lirc_streamzap]
 [<e0a99085>] usb_probe_interface+0x56/0x80 [usbcore]
 [<c02423a2>] driver_probe_device+0x37/0x89
 [<c0242454>] __driver_attach+0x0/0x36
 [<c0242478>] __driver_attach+0x24/0x36
 [<c0241c0a>] bus_for_each_dev+0x47/0x6d
 [<c01f3141>] kobject_add+0x83/0xa2
 [<c024249e>] driver_attach+0x14/0x18
 [<c0242454>] __driver_attach+0x0/0x36
 [<c0241fe2>] bus_add_driver+0x54/0x96
 [<c02427e1>] driver_register+0x34/0x39
 [<e0a99169>] usb_register+0x4b/0x90 [usbcore]
 [<e08df00b>] usb_streamzap_init+0xb/0x38 [lirc_streamzap]
 [<c012d409>] sys_init_module+0xb5/0x1ad
 [<c0102b43>] sysenter_past_esp+0x54/0x75
Code: 24 24 8b 44 24 28 8d 44 03 ff 89 44 24 0c 89 d8 48 39 44 24 0c 73
10 c7 44 24 0c ff ff ff ff 89 da f7 da 89 54 24 28 8b 44 24 2c <80> 38
00 0f 84 f2 03 00 00 8b 44 24 2c 0f b6 00 3c 25 74 11 3b