At 06:03 PM 2/9/2004, YAMAMOTO Takashi wrote:
>hi,
>
> > Module Name:  src
> > Committed By: matt
> > Date:         Tue Feb 10 01:30:49 UTC 2004
> >
> > Modified Files:
> >       src/sys/uvm: uvm.h uvm_km.c uvm_map.c uvm_map.h uvm_map_i.h
> >
> > Log Message:
> > Back out the changes in
> > http://mail-index.netbsd.org/source-changes/2004/01/29/0027.html
> > since they don't really fix the problem.
>
>what do you think a "real" fix is?
>are you going to fix all callers of uvm_unmap to be safe to sleep?
>
>(i'm not objecting to the backout)

I don't know quite yet.  Passing in UVM_FLAG_NOMERGE on the map will
will guarantee that uvm_unmap will not block since the uvm_map_entry
will never be split.  But it doesn't seem to be a good solution.



-- 
Matt Thomas                     email: matt@3am-software.com
3am Software Foundry              www: http://3am-software.com/bio/matt/
Cupertino, CA              disclaimer: I avow all knowledge of this message.