2.6.30 kernel panic with any network driver

2.6.30 kernel panic with any network driver

[John Linn]

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I just merged in 2.6.30 into our tree and I'm seeing this only when I
have a network driver built into the kernel, and it doesn't seem to
matter which network driver.

 

Maybe I missed something I need to update in our network drivers to
match the kernel.

 

Thanks for any help,

John

 

console [ttyS0] enabled

brd: module loaded

loop: module loaded

Unable to handle kernel paging request for data at address 0x75686369

Faulting instruction address: 0xc01c3e34

Oops: Kernel access of bad area, sig: 11 [#1]

PREEMPT Xilinx Virtex440

Modules linked in:

NIP: c01c3e34 LR: c01c2ab4 CTR: 00000000

REGS: cf831dc0 TRAP: 0300   Not tainted  (2.6.30)

MSR: 00029000 <EE,ME,CE>  CR: 84284324  XER: 40000020

DEAR: 75686369, ESR: 00000000

TASK = cf82f8a0[1] 'swapper' THREAD: cf830000

GPR00: c01c2ab4 cf831e70 cf82f8a0 cf87b3a8 c034e5a4 00000000 c01c2a80
00000001

GPR08: cfbe69d8 c034dd98 00000f2b cf821778 84284342 fd9781f4 f6f6dff7
6adffffe

GPR16: d7f40173 bbd35ff7 3ef7fbff fff5d3f7 ffffffff 0059dac0 ffff006f
00000000

GPR24: 00000000 00000001 c034dd98 cf0416e0 cf87b3a0 cf87b3dc c034e5a4
75686369

NIP [c01c3e34] platform_match+0x20/0xa8

LR [c01c2ab4] __driver_attach+0x34/0xa8

Call Trace:

[cf831e70] [c027a394] klist_next+0x10c/0x120 (unreliable)

[cf831e90] [c01c2ab4] __driver_attach+0x34/0xa8

[cf831eb0] [c01c123c] bus_for_each_dev+0x5c/0x98

[cf831ee0] [c01c243c] driver_attach+0x24/0x34

[cf831ef0] [c01c2050] bus_add_driver+0x18c/0x264

[cf831f10] [c01c2fa8] driver_register+0x6c/0x170

[cf831f30] [c031f8cc] xemaclite_init+0x1c/0x4c

[cf831f50] [c00011ac] do_one_initcall+0x34/0x1a0

[cf831fd0] [c0307848] kernel_init+0xa0/0x104

[cf831ff0] [c000e188] kernel_thread+0x4c/0x68

Instruction dump:



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Re: 2.6.30 kernel panic with any network driver

[Scott Wood]

John Linn wrote:
> console [ttyS0] enabled
> 
> brd: module loaded
> 
> loop: module loaded
> 
> Unable to handle kernel paging request for data at address 0x75686369

That address spells "uhci", FWIW.  Maybe a bad pointer cast somewhere in 
the USB platform data?

-Scott