re: port-i386/42966: kernel built from today's netbsd-5 crashes

[matthew green <mrg%eterna.com.au@localhost>]

The following reply was made to PR port-i386/42966; it has been noted by GNATS.

From: matthew green <mrg%eterna.com.au@localhost>
To: gnats-bugs%NetBSD.org@localhost
Cc: port-i386-maintainer%netbsd.org@localhost, gnats-admin%netbsd.org@localhost,
    netbsd-bugs%netbsd.org@localhost, anne%porcupine.montreal.qc.ca@localhost
Subject: re: port-i386/42966: kernel built from today's netbsd-5 crashes
Date: Thu, 18 Mar 2010 13:08:31 +1100

    
      >  I'm concerned that just turning off DIAGNOSTIC will simply mask a
      >  problem; I hope that the bug can actually be found and squashed.
     
     Turning off DIAGNOSTIC will, however, make your machine run a lot
     faster. (Once upon a time, DIAGNOSTIC was supposed to be cheap and
     only DEBUG was expensive; however, that's no longer true.)
 
 says who?
 
 at least on sparc64 DIAGNOSTIC causes only a few percent of performance
 loss.  the worst case i found -- ./configure -- averaged at 7% loss,
 but most things were 1-3%.
 
 
 anne, 
 
 you could probably avoid this assert by disabling i915drm as well.  this
 also looks like it might be the same problem as in PR/42980, but with
 a different caller.
 
 
 .mrg.