Ack.  My apologies.  It's been a while since I looked into this problem.
My statement was general.   I seem to remember AC sending me something
along those lines when I was having this problem, but, of course, I
can't find the message he sent, so nevermind.  ;)  Generally, I've had
very few USB + SMP-specific problems in the 2.4 kernels.  Most of my
USB+SMP problems had to do with the crappy Via chipset I was using
(Tiger Apollo 133something).

Anyway, after looking over some of my saved email, I seem to recall
using uhci.o vs usb-uhci.o for USB support seemed to solve the problem
that was introduced in the changes to usb-uhci in 2.4.4.  Up to the
point where I junked my SMP system (~2.4.8?), using the printer module
with SMP enabled on my system and with the usb-uhci module loaded caused
my machine to lock hard.  I also heard from others with the same problem
(and I seem to recall that they all had a Via chipset too).  

I apologize for being too general.  I greatly appreciate all the great
USB work you and Greg and all the others have been doing for us, while
at the same time being very helpful to the clueless ones such as myself.
;)

pete

On Fri, 02 Nov 2001, Johannes Erdfelt wrote:

> The Linux USB code is designed to be SMP safe.
> 
> There may be some SMP bugs still left, but it's not because we didn't
> try to support SMP at all.
> 
> JE
> 
> On Fri, Nov 02, 2001, Pete Toscano <[EMAIL PROTECTED]> wrote:
> > Are either of you running on an SMP system?  I've been told that the
> > Linux USB stuff is not MP-safe and had similar printing problems with my
> > Epson until I switched back to a parallel cable.  Things seem to have
> > gone south around 2.4.3 or 2.4.4.
> > 
> > pete
> > 
> > On Fri, 02 Nov 2001, Mark McClelland wrote:
> > 
> > > Is this with 2.4.9 or 2.4.10? I have been getting similar lockups with 
> > > those kernels and my webcams. Using uhci.o instead of usb-uhci.o seems 
> > > to fix it.
> > > 
> > > Dennis Morgan wrote:
> > > 
> > > >HI all,
> > > >This is just a quick note to find out if any one else has had this type of 
> > > >problem..
> > > >
> > > >When ever i try and print or access my Epson USB printer from Linux my 
> > > >system
> > > >just locks up and doesn't respond and I need to reboot my system. Any help 
> > > >would be much appreicated...
> > > >
> > > >thanks,
> > > >Dennis

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