[IPCop-devel] Kernel BUG at usb-ohci.h:464 in 2.4.27 ?

[Rainer Z. <Use...@zo...>]

Hello

on a debian 3.0 AMD Duron 1800 SiS748 (Realtek-like on board NIC) system 
with 2.4.27 i ran into the problem that the box dies sometimes with a 

    kernel BUG at usb-ohci.h:464!
    0010:[<e089cf60>]
    invalid operand: 0000 (? have not noted that words)
    ...
    ...
    Kernel panic: Aiee, killing interrupt handler!
    
The box is "dead", but keyboards LEDs are blinking, indicating the panic.

The problem occurs when i access the Web cam (which is the only USB device)
with setpwc(a very simple programm to sent ioctlI#s) or palantir
(a web cam streaming server) after some  (approx. 2...10, not 
reproducible count) accesses the box hangs, sometimes without 
any hint why no where...
It's hard to believe that a simple userlevel application 
can kill the entire box?


Some googling shows:
That oops occurs with other hardware 
(USB network card, *USB ADSL Modem*, "PCMCIA to USB" Card) too.

The only recomandation (i found) was to got back to 2.4.26...
(have not yet tried).
That bug occured in 2.4.25 and previous versions too..


Maybe that problem is relevant for IPcop too as it uses 2.4.27?
(Maybe the realtek driver is not "clean"?)


Rainer


a000-afff : PCI Bus #01
d400-d4ff : Silicon Integrated Systems [SiS] SiS900 10/100 Ethernet
  d400-d4ff : sis900
d800-d87f : Silicon Integrated Systems [SiS] Sound Controller
dc00-dcff : Silicon Integrated Systems [SiS] Sound Controller
ff00-ff0f : Silicon Integrated Systems [SiS] 5513 [IDE]
  ff00-ff07 : ide0
  ff08-ff0f : ide1