Subject: Re: 1.6.2 kernel: ex driver sometimes can't allocate
To: Jochen Kunz <>
From: Manuel Bouyer <>
List: tech-kern
Date: 09/19/2004 23:16:30
On Sun, Sep 19, 2004 at 10:25:56PM +0200, Jochen Kunz wrote:
> On Sun, 19 Sep 2004 21:06:12 +0200
> Manuel Bouyer <> wrote:
> > I don't know if it is safe to call without BUS_DMA_NOWAIT here.
> > It needs to be called from a valid thread context to be.
> I don't know how the PCMCIA / cardbus stuff works exactely. But isn't
> there a kernel thread watching the slots for insert / removal events and
> calling the appropriate MI attach / detach routines of the driver? Maybe

I think there is one, yes.

> it is possible to pass a flag to the MI attach routine to signal the
> attach code that it is save to sleep during attach?

This should be possible, but if the problem is getting physically contigous
pages, this may not be enouth.

Manuel Bouyer <>
     NetBSD: 26 ans d'experience feront toujours la difference