On Thu, Sep 25, 2003 at 06:05:46PM -0700, David Brownell wrote:
> >I got a ehci_hcd pcmcia host controller. Everytime I unplug it with the
> >module loaded the kernel oopses. If I rmmod the module before I got no
> >problem. I am using 2.4.21 and 2.4.22 here. I got a
> >usb-mass-storage-device attached to the controller here. The problem is
> >100% reproduceable here, it happens everytime. If you need the backtrace
> >from the oops contact me.
> 
> Huh .. I guess some bits rotted, I know that once worked right.
> I just saw it too; looks like some memory got freed too early.

Do you think you can fix this?

> On the other hand, for some reason 2.4.23-pre5 "usb-ohci" thought
> it was being rudely unplugged (and also misbehaved) when I just
> did "telinit 2", so there's more than enough wierdness to make
> you cautious with one of those cardbus controllers on 2.4 ...

I only got a cardbus ehci-hcd

> Preferred workaround:  Use a 2.6.0 kernel!

Hm, not a good idea

> Alternatively:  Keep using rmmod.

Not a poblem, but I think the kernel should really not panic when
hotplugging the device.


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