[ofa-general] Re: mapping kernel memory to userspace in <= 2.6.14

[Michael S. Tsirkin]

> Quoting Steve Wise <swise at opengridcomputing.com>:
> Subject: Re: mapping kernel memory to userspace in <= 2.6.14
> 
> On Wed, 2007-03-14 at 07:19 +0200, Michael S. Tsirkin wrote:
> > > I figured out why I was hitting the BUG_ON() in page_remove_rmap().  Its
> > > because my library was destroying the QP or CQ object _before_ unmaping
> > > the objects.  I changed it to unmap first, and things work as expected.
> > 
> > I guess kernel side also needs to be fixed, otherwise buggy userspace
> > can trigger BUG_ON's?
> > 
> 
> a buggy provider library.

This is a userspace library, isn't it?

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MST