[Bug 38754] Complete Freeze when loading radeon module

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=38754

--- Comment #25 from Rob Wouters <freedesktop at rob-wouters.nl> 2011-07-21 18:12:53 PDT ---
(In reply to comment #24)
> (In reply to comment #23)
> > (In reply to comment #22)
> > > I have the exact same bug with the exact same card. I just tried kernel 3.0-rc7
> > > which immediately hard freezes upon boot. The patches mentioned in bug #38583
> > > seem to be already applied to 3.0-rc7 and do not offer a solution. I am
> > > currently running 2.6.38 however which works perfectly fine.
> > > 
> > > If anybody can help/guide me tracking this issue down further I am happy to do
> > > so.
> > 
> > Can you bisect?
> 
> Any links you can give me to figure out how to do that?

(In reply to comment #23)
> (In reply to comment #22)
> > I have the exact same bug with the exact same card. I just tried kernel 3.0-rc7
> > which immediately hard freezes upon boot. The patches mentioned in bug #38583
> > seem to be already applied to 3.0-rc7 and do not offer a solution. I am
> > currently running 2.6.38 however which works perfectly fine.
> > 
> > If anybody can help/guide me tracking this issue down further I am happy to do
> > so.
> 
> Can you bisect?

Ok, I managed to figure out how to bisect:

desktop linux # git bisect good
2feea49ae34a2fcea1035136b85f5eaca56f5cd0 is the first bad commit
commit 2feea49ae34a2fcea1035136b85f5eaca56f5cd0
Author: Alex Deucher <alexdeucher at gmail.com>
Date:   Tue Apr 12 14:49:24 2011 -0400

    drm/radeon/kms: properly program vddci on evergreen+

    Change vddci as well as vddc when changing power modes
    on evergreen/ni.  Also, properly set vddci on boot up
    for ni cards.  The vbios only sets the limited clocks
    and voltages on boot until the mc ucode is loaded.  This
    should fix stability problems on some btc cards.

    Signed-off-by: Alex Deucher <alexdeucher at gmail.com>
    Signed-off-by: Dave Airlie <airlied at redhat.com>

:040000 040000 cdec09fa04a3c2c659ca5490b129c7ca0ef0cd35
f10955ccdf6658b033f11e4e5e1af7736ed5e723 M      drivers

If you need more info let me know.

-- 
Configure bugmail: https://bugs.freedesktop.org/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are the assignee for the bug.