Re: 2.2.14pre17 hangup with SMP during ifconfig

[Alan Cox]

> > I'm using a 3x905C with a driver module 3c90x supplied
> > by 3com, so may be there is a bug within this module which is not
> > part of the official linux kernel. I traced it down to the last
> > system call of "ifconfig eth0 down":
> 
> That's a bug in the 3Com driver: someone else reported that a few days
> ago, and IIRC the bug is caused by a wrong disable_irq() call. Could you
> try the default driver from the kernel code?

The kernel driver does not support the 905C. Currently this card cannot be
used on an SMP Linux box. Swapping the disable_irq for a disable_irq_nosync
will probably fix it. I passed the original thing on to 3Com but I've had
no ack for it yet (possibly due to christmas etc)

Alan