From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ@public.gmane.org Subject: [Bug 97620] [REGRESSION] KMS having issues after kernel upgrade (4.5.1-1 to 4.6.4-1) Date: Wed, 07 Sep 2016 04:20:41 +0000 Message-ID: References: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============1664083860==" Return-path: In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: nouveau-bounces-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org Sender: "Nouveau" To: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org List-Id: nouveau.vger.kernel.org --===============1664083860== Content-Type: multipart/alternative; boundary="14732220412.4fBB.30114"; charset="UTF-8" --14732220412.4fBB.30114 Date: Wed, 7 Sep 2016 04:20:41 +0000 MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://bugs.freedesktop.org/ Auto-Submitted: auto-generated https://bugs.freedesktop.org/show_bug.cgi?id=3D97620 --- Comment #7 from Ilia Mirkin --- Hrmph. Well it looks like your GPU just goes nuts. [ 9.933619] nouveau 0000:01:00.0: bus: MMIO write of 00000002 FAULT at 13b154 [ IBUS ] [ 9.936957] nouveau 0000:01:00.0: bus: MMIO write of 00000000 FAULT at 61019c [ IBUS ] followed by a ton more 610xxx errors. 610xxx is PDISPLAY stuff, but 13b154 = is in PXBAR.GPC_*. I also can't find any way that we'd be writing to that register, at least nothing too direct. Something we do greatly upsets the c= hip though. I looked through the nouveau changes between 4.5 and 4.6, and while there w= as a ton of stuff, nothing jumps out at me. Can you do a git bisect on the kernel between v4.5 and v4.6 (you can restri= ct it to drivers/gpu/drm/nouveau) to figure out which change killed it? Separately, you could see if it magically got fixed in v4.7 or v4.8-rcN. --=20 You are receiving this mail because: You are the assignee for the bug.= --14732220412.4fBB.30114 Date: Wed, 7 Sep 2016 04:20:41 +0000 MIME-Version: 1.0 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://bugs.freedesktop.org/ Auto-Submitted: auto-generated

Comment= # 7 on bug 97620<= /a> from Ilia Mirkin 
Hrmph. Well it looks like your GPU just goes nuts.

[    9.933619] nouveau 0000:01:00.0: bus: MMIO write of 00000002 FAULT at
13b154 [ IBUS ]
[    9.936957] nouveau 0000:01:00.0: bus: MMIO write of 00000000 FAULT at
61019c [ IBUS ]

followed by a ton more 610xxx errors. 610xxx is PDISPLAY stuff, but 13b154 =
is
in PXBAR.GPC_*. I also can't find any way that we'd be writing to that
register, at least nothing too direct. Something we do greatly upsets the c=
hip
though.

I looked through the nouveau changes between 4.5 and 4.6, and while there w=
as a
ton of stuff, nothing jumps out at me.

Can you do a git bisect on the kernel between v4.5 and v4.6 (you can restri=
ct
it to drivers/gpu/drm/nouveau) to figure out which change killed it?

Separately, you could see if it magically got fixed in v4.7 or v4.8-rcN.

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