Loft:~# modprobe ath_pci
ath_hal: 0.9.16.13 (AR5210, AR5211, AR5212, RF5111, RF5112, RF2413, RF5413, REGOPS_FUNC, DFS)
wlan: 0.8.4.2 (Atheros/multi-bss)
ath_rate_sample: 1.2
ath_pci: 0.9.4.5 (Atheros/multi-bss)
PCI: enabling device 0000:00:02.0 (0140 -> 0142)
Before READ 0x4004 => 0x0
Unable to handle kernel paging request at virtual address 48004004
pgd = c2c20000
[48004004] *pgd=00000000
Internal error: Oops: f5 [#1]
Modules linked in: ath_pci ath_rate_sample wlan ath_hal ixp400_eth ixp400
CPU: 0
PC is at ath_hal_reg_read+0x34/0x54 [ath_hal]
LR is at 0xc0316a68
pc : [<bf10b258>]    lr : [<c0316a68>]    Tainted: P
sp : c37cfd28  ip : c38ca044  fp : c37cfd3c
r10: 00000000  r9 : bf188464  r8 : 48000000
r7 : c37cfdc8  r6 : 00000001  r5 : 00004004  r4 : c2d68000
r3 : 48000000  r2 : 00000000  r1 : bf135d3c  r0 : c2d68000
Flags: nZCv  IRQs on  FIQs on  Mode SVC_32  Segment user
Control: 397F  Table: 02C20000  DAC: 00000015
Process modprobe (pid: 1013, stack limit = 0xc37ce194)
Stack: (0xc37cfd28 to 0xc37d0000)
fd20:                   c2d68000 c2d68000 c37cfd58 c37cfd40 bf11e054 bf10b230
fd40: 00000000 c2d68000 00000001 c37cfd74 c37cfd5c bf11e1f0 bf11e040 c2ce8000
fd60: c2d68000 c2d68000 c37cfdac c37cfd78 bf11ad9c bf11e1c4 c37cfdc8 0000a808
fd80: c37ce000 c2ce8000 c2ce8260 48000000 c2ce8000 48000000 bf188464 00000000
fda0: c37cfdc0 c37cfdb0 bf10b658 bf11ad68 c37cfdc8 c37cfde0 c37cfdc4 bf10b024
fdc0: bf10b590 c37cfdc8 c37cfdd4 c2ce8000 c2ce8260 c37cfe34 c37cfde4 bf17216c
fde0: bf10b00c c37cfe00 c002dc54 c3b6ca80 0000001b c2ce98ec 00000001 00000013
fe00: c37cfe34 c37cfe10 080234a8 c2ce8000 c03cd800 48000000 c2ce8260 48000000
fe20: bf188464 000167d0 c37cfe6c c37cfe38 bf1813b0 bf17200c c2ce8000 00000000
fe40: 0826c5ec bf188608 c03cd800 00000000 bf188630 00000000 c37ce000 000167d0
fe60: c37cfe7c c37cfe70 c015ec14 bf181178 c37cfe98 c37cfe80 c015ec6c c015ebfc
fe80: bf188608 c03cd800 bf188630 c37cfeb0 c37cfe9c c015ecb0 c015ec24 c03cd844
fea0: 00000000 c37cfecc c37cfeb4 c0178a18 c015ec90 c03cd908 c37cfee4 c0178b14
fec0: c37cfee0 c37cfed0 c0178b60 c01789c8 00000000 c37cff0c c37cfee4 c0178040
fee0: c0178b20 c02c95c8 c02c95c8 c03cd88c bf188630 c02c94e0 bf188644 00000000
ff00: c37cff1c c37cff10 c0178bac c0177ff8 c37cff3c c37cff20 c0178524 c0178b98
ff20: bf188630 bf1886e0 c37ce000 c02c0300 c37cff54 c37cff40 c0178fe8 c01784b4
ff40: bf1886e0 bf188608 c37cff70 c37cff58 c015ef48 c0178fb4 c37cff80 c02c0318
ff60: bf1886e0 c37cff80 c37cff74 bf18a030 c015eee0 c37cffa4 c37cff84 c0058f38
ff80: bf18a00c 000093d0 00000003 00016968 00000080 c0021f64 00000000 c37cffa8
ffa0: c0021de0 c0058dd8 000093d0 00000003 40142000 0001c1c0 000167d0 00000000
ffc0: 000093d0 00000003 00016968 00016974 00000000 000166e0 000167d0 00000000
ffe0: 00014e84 be9c0b18 0000a678 400eb96c 60000010 40142000 00002031 00002431
Backtrace:
[<bf10b224>] (ath_hal_reg_read+0x0/0x54 [ath_hal]) from [<bf11e054>] (zz016d9d41+0x50/0x1b4 [ath_hal])
 r5 = C2D68000  r4 = C2D68000
[<bf11e034>] (zz016d9d41+0x30/0x1b4 [ath_hal]) from [<bf11e1f0>] (zz016e1251+0x38/0x6c [ath_hal])
 r6 = 00000001  r5 = C2D68000  r4 = 00000000
[<bf11e1b8>] (zz016e1251+0x0/0x6c [ath_hal]) from [<bf11ad9c>] (zz0005b6b2+0x40/0x76c [ath_hal])
 r6 = C2D68000  r5 = C2D68000  r4 = C2CE8000
[<bf11ad5c>] (zz0005b6b2+0x0/0x76c [ath_hal]) from [<bf10b658>] (ath_hal_attach+0xd4/0x18c [ath_hal])
[<bf10b584>] (ath_hal_attach+0x0/0x18c [ath_hal]) from [<bf10b024>] (_ath_hal_attach+0x24/0xd4 [ath_hal])
[<bf10b000>] (_ath_hal_attach+0x0/0xd4 [ath_hal]) from [<bf17216c>] (ath_attach+0x16c/0x1160 [ath_pci])
 r5 = C2CE8260  r4 = C2CE8000
[<bf172000>] (ath_attach+0x0/0x1160 [ath_pci]) from [<bf1813b0>] (ath_pci_probe+0x244/0x358 [ath_pci])
[<bf18116c>] (ath_pci_probe+0x0/0x358 [ath_pci]) from [<c015ec14>] (pci_call_probe+0x24/0x28)
[<c015ebf0>] (pci_call_probe+0x0/0x28) from [<c015ec6c>] (__pci_device_probe+0x54/0x6c)
[<c015ec18>] (__pci_device_probe+0x0/0x6c) from [<c015ecb0>] (pci_device_probe+0x2c/0x44)
 r6 = BF188630  r5 = C03CD800  r4 = BF188608
[<c015ec84>] (pci_device_probe+0x0/0x44) from [<c0178a18>] (driver_probe_device+0x5c/0xac)
 r5 = 00000000  r4 = C03CD844
[<c01789bc>] (driver_probe_device+0x0/0xac) from [<c0178b60>] (__driver_attach+0x4c/0x78)
 r6 = C0178B14  r5 = C37CFEE4  r4 = C03CD908
[<c0178b14>] (__driver_attach+0x0/0x78) from [<c0178040>] (bus_for_each_dev+0x54/0x84)
 r4 = 00000000
[<c0177fec>] (bus_for_each_dev+0x0/0x84) from [<c0178bac>] (driver_attach+0x20/0x28)
 r7 = 00000000  r6 = BF188644  r5 = C02C94E0  r4 = BF188630
[<c0178b8c>] (driver_attach+0x0/0x28) from [<c0178524>] (bus_add_driver+0x7c/0xcc)
[<c01784a8>] (bus_add_driver+0x0/0xcc) from [<c0178fe8>] (driver_register+0x40/0x4c)
 r7 = C02C0300  r6 = C37CE000  r5 = BF1886E0  r4 = BF188630
[<c0178fa8>] (driver_register+0x0/0x4c) from [<c015ef48>] (__pci_register_driver+0x74/0xac)
 r4 = BF188608
[<c015eed4>] (__pci_register_driver+0x0/0xac) from [<bf18a030>] (init_ath_pci+0x30/0x78 [ath_pci])
 r5 = BF1886E0  r4 = C02C0318
[<bf18a000>] (init_ath_pci+0x0/0x78 [ath_pci]) from [<c0058f38>] (sys_init_module+0x16c/0x318)
[<c0058dcc>] (sys_init_module+0x0/0x318) from [<c0021de0>] (ret_fast_syscall+0x0/0x2c)
 r8 = C0021F64  r7 = 00000080  r6 = 00016968  r5 = 00000003
 r4 = 000093D0
Code: ebffffd0 e5943014 e1a00004 e59f1018 (e7934005)
 Segmentation fault