Re: kern/50060: kernel crash with i915drmksm on Intel 965Q

[christos%zoulas.com@localhost (Christos Zoulas)]

The following reply was made to PR kern/50060; it has been noted by GNATS.

From: christos%zoulas.com@localhost (Christos Zoulas)
To: gnats-bugs%NetBSD.org@localhost, riastradh%NetBSD.org@localhost, gnats-admin%netbsd.org@localhost, 
	netbsd-bugs%netbsd.org@localhost, nisimura%netbsd.org@localhost
Cc: 
Subject: Re: kern/50060: kernel crash with i915drmksm on Intel 965Q
Date: Mon, 12 Oct 2015 15:03:35 -0400

 On Oct 12, 12:25pm, gson%gson.org@localhost (Andreas Gustafsson) wrote:
 -- Subject: Re: kern/50060: kernel crash with i915drmksm on Intel 965Q
 
 | The following reply was made to PR kern/50060; it has been noted by GNATS.
 | 
 | From: Andreas Gustafsson <gson%gson.org@localhost>
 | To: christos%zoulas.com@localhost (Christos Zoulas), gnats-bugs%NetBSD.org@localhost
 | Cc: 
 | Subject: Re: kern/50060: kernel crash with i915drmksm on Intel 965Q
 | Date: Mon, 12 Oct 2015 15:24:30 +0300
 | 
 |  I added another bunch of printfs to track down where the
 |  bus_space_unmap() call happens.
 |  
 |  i915_driver_load() calls i915_gem_gtt_init(), which
 |  returns a nonzero value via this return statement:
 |  
 |          ret = gtt->gtt_probe(dev, &gtt->base.total, &gtt->stolen_size,
 |                               &gtt->mappable_base, &gtt->mappable_end);
 |          if (ret)
 |                  return ret;
 
 Unfortunately forcing an error there on my machine does not reproduce
 the problem... Boot completes but I end up with no console which is a
 different bug!
 
 christos