Re: 2.6.4 - powerbook 15" - usb oops+backtrace

Benjamin Herrenschmidt
2004-03-13T00:28:55Z

On Sat, 2004-03-13 at 00:25, Soeren Sonnenburg wrote:
> Hi!
>
> I got this oops when inserting mouse/keyboard (both usb).
>
> usb 1-1: new low speed USB device using address 4
> input: USB HID v1.00 Mouse [Cypress Sem USB Mouse] on usb-0001:01:18.0-1
> Oops: kernel access of bad area, sig: 11 [#1]
> NIP: 5A5A5A58 LR: C026D8B0 SP: ED6B1E10 REGS: ed6b1d60 TRAP: 0401 Not

NIP is the program counter, something tried to jump into nowhereland,
find out who by looking at who "owns" C026D8B0 in System.map

> tainted
> MSR: 40009032 EE: 1 PR: 0 FP: 0 ME: 1 IR/DR: 11
> TASK = edb87320[1332] 'pbbuttonsd' Last syscall: 5
> GPR00: 5A5A5A5A ED6B1E10 EDB87320 C1991894 E2DB789C 00000000 E7909300
> ED6B1DC0
> GPR08: 00000000 00000000 C03DA5A0 00000005 84000428
> Call trace:
> [c02704ac] evdev_open+0x64/0x104
> [c026e814] input_open_file+0x98/0x1cc
> [c00675a8] chrdev_open+0xe0/0x16c
> [c005c0b4] dentry_open+0x15c/0x230
> [c005bf54] filp_open+0x64/0x68
> [c005c43c] sys_open+0x68/0xa0
> [c0005d3c] ret_from_syscall+0x0/0x44
> usb 2-1: new low speed USB device using address 4
> input: USB HID v1.00 Keyboard [PTC HID PS/2 Keyboard - PS/2 Mouse] on
> usb-0001:01:19.0-1
> input: USB HID v1.00 Mouse [PTC HID PS/2 Keyboard - PS/2 Mouse] on
> usb-0001:01:19.0-1
>
> Thanks for any suggestions...
>
> I can probably give more infos as xmon is compiled in the kernel here.
>
> Thanks in advance,
> Soeren.
>
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--
Benjamin Herrenschmidt <benh@kernel.crashing.org>