From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ@public.gmane.org Subject: [Bug 61460] With Option "NoAccel" "0", xorg fails... Date: Fri, 26 Jul 2013 08:01:07 +0000 Message-ID: References: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============1215333478==" 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 --===============1215333478== Content-Type: multipart/alternative; boundary="1374825667.D27d2223.10458"; charset="us-ascii" --1374825667.D27d2223.10458 Date: Fri, 26 Jul 2013 08:01:07 +0000 MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" https://bugs.freedesktop.org/show_bug.cgi?id=61460 --- Comment #4 from Ilia Mirkin --- It's not particularly clear (to me) where the bug is. Certainly there appears to be an issue in the xf86-video-nouveau EXA implementation when the card dies, it starts dereferencing NULL-ish pointers. However I think that the card dying is the primary issue... The bug here starts out with [ 6.760320] nouveau E[ DRM] GPU lockup - switching to software fbcon before anything really happens, and then X starts, and PGRAPH is variously freaking out. The nouveau GPU reset logic isn't so great... my experience is that oftentimes only a reboot really fixes a GPU lockup. (Sometimes it's fine though.) In the altlinux.org bug there's also a GPU lockup detected, and it's not likely to be due to the fact that X died, but rather the other way around. (Lockups aren't necessarily detected immediately...) -- You are receiving this mail because: You are the assignee for the bug. --1374825667.D27d2223.10458 Date: Fri, 26 Jul 2013 08:01:07 +0000 MIME-Version: 1.0 Content-Type: text/html; charset="UTF-8"

Comment # 4 on bug 61460 from 
It's not particularly clear (to me) where the bug is. Certainly there appears
to be an issue in the xf86-video-nouveau EXA implementation when the card dies,
it starts dereferencing NULL-ish pointers. However I think that the card dying
is the primary issue...

The bug here starts out with

[    6.760320] nouveau E[     DRM] GPU lockup - switching to software fbcon

before anything really happens, and then X starts, and PGRAPH is variously
freaking out. The nouveau GPU reset logic isn't so great... my experience is
that oftentimes only a reboot really fixes a GPU lockup. (Sometimes it's fine
though.)

In the altlinux.org bug there's also a GPU lockup detected, and it's not likely
to be due to the fact that X died, but rather the other way around. (Lockups
aren't necessarily detected immediately...)

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