[cpia] cpia 1.0 bugreport

Gerard Saraber gerard@saraber.dhs.org
Thu, 15 Jun 2000 20:06:11 -0500


Johannes Erdfelt wrote:
> 
> On Thu, Jun 15, 2000, Arjan van de Ven <arjan@fenrus.demon.nl> wrote:
> > In article <3948229C.4C4DD4CF@saraber.dhs.org> you wrote:
> >
> > > My system is a dual Celeron 433 (not overclocked) and i'm trying to run
> >
> > There are 2 bad pieces of code in this case. The CPIA one can be fixed
> > with the patch below, the usb one is more tricky. Basically, the UHCI
> > USB driver (the "backend" driver for your mobo) has some serious deadlocks
> > on SMP systems. These are reported to Alan Cox and should appear on the
> > "todo" list really soon.
> 
> Seeing as I maintain one of the UHCI drivers, I'd be really interested
> in finding some more information. I do some substantial testing on SMP
> systems during my testing of the driver and I've fixed all of the bugs
> I've run into. I haven't run into any problems recently.
> 
> Do you have any more information?
> 
> JE

Exactly what information are you looking for ?
It's an Abit BP6 mainboard, 
usb controller: 00:07.2 USB Controller: Intel Corporation 82371AB PIIX4
USB (rev 01)

umm lets see, as I said i'm running linux kernel 2.3.99-pre9 with the
cpia 1.0 drivers (from sourceforge) copied into the kernel tree.. 
I have an hpt366 UDMA/ATA66 ide controller onboard in use, i suppose its
possible that the deadlock occurs when it's reading from the video4linux
device and writing to disk at the same time ?

let me know if there is anything you want me to try or any /proc output
you want to look at...
I'll try Arjans patch next (bedankt!) and see if it does anything
different...

Thanks,
Gerard Saraber
gerard@saraber.dhs.org
http://www.rarcoa.com