From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ@public.gmane.org Subject: [Bug 56461] NV11 black screen & kernel hang on loading nouveaufb Date: Sun, 09 Dec 2012 22:53:49 +0000 Message-ID: References: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============1339791462==" Return-path: In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: nouveau-bounces+gcfxn-nouveau=m.gmane.org-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org Errors-To: nouveau-bounces+gcfxn-nouveau=m.gmane.org-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org To: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org List-Id: nouveau.vger.kernel.org --===============1339791462== Content-Type: multipart/alternative; boundary="1355093629.aB2a2bF11.4331"; charset="us-ascii" --1355093629.aB2a2bF11.4331 Date: Sun, 9 Dec 2012 22:53:49 +0000 MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" https://bugs.freedesktop.org/show_bug.cgi?id=56461 --- Comment #9 from Chris Paulson-Ellis --- Hi, I only just realised that you sent me a second patch (I thought you were referring to the first patch, so I went and did the bisect as per my previous message). I've just tried the second patch against nouveau HEAD. Unfortunately it causes a NULL pointer dereference. I think this is because when this line in nv04_timer_init... n = nouveau_hw_get_clock(((struct nouveau_drm *)nouveau_client(priv))->dev, PLL_CORE); ...calls nouveau_client() it gets NULL, because the parent of nv04_timer_priv is a nouveau_device, not a nouveau_drm. I can't see any way to get a pointer to the drm_device from nv04_timer_init, so I don't think calling nouveau_hw_get_clock from here is possible. Chris. -- You are receiving this mail because: You are the assignee for the bug. --1355093629.aB2a2bF11.4331 Date: Sun, 9 Dec 2012 22:53:49 +0000 MIME-Version: 1.0 Content-Type: text/html; charset="UTF-8"

Comment # 9 on bug 56461 from 
Hi,

I only just realised that you sent me a second patch (I thought you were
referring to the first patch, so I went and did the bisect as per my previous
message). I've just tried the second patch against nouveau HEAD. Unfortunately
it causes a NULL pointer dereference. I think this is because when this line in
nv04_timer_init...

n = nouveau_hw_get_clock(((struct nouveau_drm *)nouveau_client(priv))->dev,
PLL_CORE);

...calls nouveau_client() it gets NULL, because the parent of nv04_timer_priv
is a nouveau_device, not a nouveau_drm. I can't see any way to get a pointer to
the drm_device from nv04_timer_init, so I don't think calling
nouveau_hw_get_clock from here is possible.

Chris.

You are receiving this mail because:
  • You are the assignee for the bug.
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