Subject: Re: Are there any known problems with uvm or pmap in -current as of about Oct. 16?
To: Dave Huang <khym@azeotrope.org>
From: Chuck Silvers <chuq@chuq.com>
List: port-macppc
Date: 10/25/2001 21:49:47
hi,

the only thing I can suggest at the moment is turning on "options NEWPMAP"
in your kernel config file.  the old powerpc pmap module had lots of bugs,
one of which you are experiencing now.  so a while back matt thomas
rewrote it, but unfortunately the new pmap also has bugs, but they're
different bugs.  so if one of them doesn't work for you, try the other one.
if you have problems with both of them, you may be out of luck for now.

-Chuck


On Thu, Oct 25, 2001 at 11:12:20PM -0500, Dave Huang wrote:
> On Thu, 25 Oct 2001, Monroe Williams wrote:
> > After each panic, the keyboard was unresponsive, so I was unable to get a
> > backtrace.  I only wrote down the messages from two of the panics, and they
> > were both the same:
> >
> > kernel diagnostic assertion "rv" failed: file ../../../uvm/uvm_pager_i.h
> >
> > Looking at the source, this panic happens in uvm_pageratop() when
> > pmap_extract() returns FALSE.  I don't know enough about these subsystems to
> > make much sense of this.
> >
> > Does this ring a bell with anyone?
> 
> Yeah, see http://mail-index.netbsd.org/current-users/2001/10/25/0008.html
> 
> I still don't know what to do about it though...
> 
>