Re: uvm panic at boot

[bch%methodlogic.net@localhost]

On Fri, Jan 21, 2011 at 11:28:15AM -0700, Sverre Froyen wrote:
> > On Fri, Jan 21, 2011 at 09:21:19AM -0700, Sverre Froyen wrote:
> > > I see a similar failure:
> > I filed ticket other day, but have not seen any response.
> > 
> > http://gnats.netbsd.org/cgi-bin/query-pr-single.pl?number=44417
> 
> I found your PR right after I posted my message.


I did some bisecting  and have traced the problem (on my machine) to
src/sys/uvm/uvm_pglist.c v.1.52, which I see is the same conclusion
Sverre reached below.

-bch

> It is strange that the failures are slightly different:
> 
> Yours: page fault @ uvm_pglist_add+0x36: movq %rdx,0(%rax)
> Mine: protection fault @ vm_pglist_add+0x2e: movq %rax,0x20(%rdx)
> Christoph's: assertion @ "sys/uvm/uvm_page.c", line 2015
> 
> In my case, at least, reverting
> 
> http://mail-index.netbsd.org/source-changes/2011/01/18/msg017476.html
> 
> results in a working system.
> 
> Regards,
> Sverre

-- 
Brad Harder
Method Logic Digital Consulting
http://methodlogic.net
http://twitter.com/bcharder