2.6.0-test3-mm2

[Andreas Mikkelborg]

modprobe i2c-nforce2 segfaults and produces :

Unable to handle kernel NULL pointer dereference at virtual address 000001c4
 printing eip:
f899a068
*pde = 00000000
Oops: 0000 [#1]
PREEMPT 
CPU:    0
EIP:    0060:[<f899a068>]    Tainted: P   VLI
EFLAGS: 00210246
EIP is at nforce2_access+0x68/0x3d0 [i2c_nforce2]
eax: 00000000   ebx: 00000000   ecx: 00000020   edx: 00000000
esi: 00000000   edi: 00000002   ebp: 00000000   esp: f6a01d84
ds: 007b   es: 007b   ss: 0068
Process modprobe (pid: 8213, threadinfo=f6a00000 task=f6b5c040)
Stack: f6a14c40 00000024 c0172179 00000000 f6c92464 fffdb000 00000024 c0163113 
       f6a14c40 00000007 00000000 00200024 f6dc4420 00000000 00000000 f6dc4404 
       f882f190 f6dc4404 00000020 00000000 00000000 00000000 00000000 00000000 
Call Trace:
 [<c0172179>] simple_commit_write+0x89/0xa0
 [<c0163113>] page_symlink+0x163/0x1f6
 [<f882f190>] i2c_smbus_xfer+0xa0/0x230 [i2c_core]
 [<f8838330>] i2c_detect+0x330/0x4b0 [i2c_sensor]
 [<f887467b>] w83781d_attach_adapter+0x2b/0x30 [w83781d]
 [<f88749c0>] w83781d_detect+0x0/0x9d0 [w83781d]
 [<f882d1cd>] i2c_add_adapter+0x17d/0x190 [i2c_core]
 [<c0208787>] snprintf+0x27/0x30
 [<f899d13c>] nforce2_probe_smb+0x13c/0x1c0 [i2c_nforce2]
 [<f899d226>] nforce2_probe+0x66/0x130 [i2c_nforce2]
 [<c020bdc2>] pci_device_probe_static+0x52/0x70
 [<c020bf2c>] __pci_device_probe+0x3c/0x50
 [<c020bf6f>] pci_device_probe+0x2f/0x50
 [<c0227e85>] bus_match+0x45/0x80
 [<c0227fac>] driver_attach+0x5c/0x60
 [<c0228243>] bus_add_driver+0x93/0xb0
 [<c02286af>] driver_register+0x2f/0x40
 [<c020c260>] pci_register_driver+0x70/0xa0
 [<f899d303>] nforce2_init+0x13/0x3d [i2c_nforce2]
 [<c013285c>] sys_init_module+0x12c/0x250
 [<c02a7b6b>] syscall_call+0x7/0xb

Code: e0 04 66 85 c0 75 05 c6 44 24 27 00 83 7c 24 58 0b 0f 87 4c 03 00 00 8b 44
 24 58 ff 24 85 94 a4 99 f8 8b 54 24 28 83 cf 02 31 ed <8b> b2 c4 01 00 00 0f b6 44 24 2e 8d 56 02 00 c0 ee e6 80 89 f8 
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