Hello all

[Greg, you maintain so many drivers, that I'll soon stop checking 
MAINTAINERS and just cc you - just in case:-)]

Booted 2.6.15.6 on a powerpc embedded board with "console=ttyUSB0,38400" 
and got the following Oops:

usbcore: registered new driver usbserial_generic
drivers/usb/serial/usb-serial.c: USB Serial Driver core
drivers/usb/serial/usb-serial.c: USB Serial support registered for FTDI USB 
Serial Device
ftdi_sio 2-1:1.0: FTDI USB Serial Device converter detected
drivers/usb/serial/ftdi_sio.c: Detected FT232BM
usb 2-1: FTDI USB Serial Device converter now attached to ttyUSB0
Oops: kernel access of bad area, sig: 11 [#1]
PREEMPT
NIP: C017BF0C LR: C029A0A0 SP: C7C0FCF0 REGS: c7c0fc40 TRAP: 0300    Not tainted
MSR: 00009032 EE: 1 PR: 0 FP: 0 ME: 1 IR/DR: 11
DAR: 000000C4, DSISR: 20000000
TASK = c7c08b10[1] 'swapper' THREAD: c7c0e000
Last syscall: 120
GPR00: 00000000 C7C0FCF0 C7C08B10 C022976C C022A0D0 C020F2C0 00000040 00000000
GPR08: 00002000 C7C21F20 0005DC00 00000000 84042428 1001E920 C7E798B4 C02A0000
GPR16: 00000001 00000000 00000001 00000000 00000001 C01781B8 C025C0AC C0230000
GPR24: C017822C C7E79818 00000008 C025C1D0 C7C21F20 C7E78C00 C7D493C0 C7E79600
NIP [c017bf0c] ftdi_open+0x58/0x1a8
LR [c029a0a0] usb_console_setup+0x2c4/0x36c
Call trace:
 [c029a0a0] usb_console_setup+0x2c4/0x36c
 [c0016de4] register_console+0x234/0x288
 [c017a964] usb_serial_console_init+0x40/0x64
 [c0179218] usb_serial_probe+0xf24/0x110c
 [c015b0c4] usb_probe_interface+0x78/0xb4
 [c0133e7c] driver_probe_device+0x50/0xf4
 [c0134058] __driver_attach+0x84/0x98
 [c0133334] bus_for_each_dev+0x54/0x98
 [c0134090] driver_attach+0x24/0x34
 [c01338ac] bus_add_driver+0x88/0x158
 [c01345f0] driver_register+0x48/0x5c
 [c015b2a0] usb_register+0x68/0xcc
 [c029a1a8] ftdi_init+0x60/0x12c
 [c0003968] init+0x90/0x294
 [c0006a54] kernel_thread+0x44/0x60
Kernel panic - not syncing: Attempted to kill init!

Without "console=..." I can boot the system and then use the adapter. 
Don't have another adapter to check, but could test it in a normal PC. 
i386 asm would also be somewhat easier for me to understand. But, I think, 
for some the output above might be enough to identify and fix the bug?

Thanks
Guennadi
---
Guennadi Liakhovetski


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