* [Bug 120591] New: BUG() in dmesg after loading nouveau module
@ 2016-06-18 16:17 bugzilla-daemon
2016-06-18 16:18 ` [Bug 120591] " bugzilla-daemon
` (8 more replies)
0 siblings, 9 replies; 10+ messages in thread
From: bugzilla-daemon @ 2016-06-18 16:17 UTC (permalink / raw)
To: dri-devel
https://bugzilla.kernel.org/show_bug.cgi?id=120591
Bug ID: 120591
Summary: BUG() in dmesg after loading nouveau module
Product: Drivers
Version: 2.5
Kernel Version: 4.7-rc3
Hardware: x86-64
OS: Linux
Tree: Mainline
Status: NEW
Severity: high
Priority: P1
Component: Video(DRI - non Intel)
Assignee: drivers_video-dri@kernel-bugs.osdl.org
Reporter: demfloro@demfloro.ru
Regression: No
Created attachment 220561
--> https://bugzilla.kernel.org/attachment.cgi?id=220561&action=edit
dmesg
OS: Arch Linux
Video adapter: GeForce GTX 780 Ti
xf86-nouveau: 1.0.12
I blacklisted nouveau module for full OS initialisation before reproducing,
then issued:
# modprobe nouveau debug=trace
After that screen becomes black and in dmesg appears:
BUG: unable to handle kernel NULL pointer dereference at 0000000000000210
Bug is not reproducible with 4.7-rc2 or earlier mainline.
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* [Bug 120591] BUG() in dmesg after loading nouveau module
2016-06-18 16:17 [Bug 120591] New: BUG() in dmesg after loading nouveau module bugzilla-daemon
@ 2016-06-18 16:18 ` bugzilla-daemon
2016-06-18 16:36 ` bugzilla-daemon
` (7 subsequent siblings)
8 siblings, 0 replies; 10+ messages in thread
From: bugzilla-daemon @ 2016-06-18 16:18 UTC (permalink / raw)
To: dri-devel
https://bugzilla.kernel.org/show_bug.cgi?id=120591
--- Comment #1 from Dmitrii Tcvetkov <demfloro@demfloro.ru> ---
Created attachment 220571
--> https://bugzilla.kernel.org/attachment.cgi?id=220571&action=edit
kernel config
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* [Bug 120591] BUG() in dmesg after loading nouveau module
2016-06-18 16:17 [Bug 120591] New: BUG() in dmesg after loading nouveau module bugzilla-daemon
2016-06-18 16:18 ` [Bug 120591] " bugzilla-daemon
@ 2016-06-18 16:36 ` bugzilla-daemon
2016-06-19 9:00 ` bugzilla-daemon
` (6 subsequent siblings)
8 siblings, 0 replies; 10+ messages in thread
From: bugzilla-daemon @ 2016-06-18 16:36 UTC (permalink / raw)
To: dri-devel
https://bugzilla.kernel.org/show_bug.cgi?id=120591
Ilia Mirkin <imirkin@alum.mit.edu> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |imirkin@alum.mit.edu
--- Comment #2 from Ilia Mirkin <imirkin@alum.mit.edu> ---
Looks like
commit f045f459d925138fe7d6193a8c86406bda7e49da
Author: Ben Skeggs <bskeggs@redhat.com>
Date: Thu Jun 2 12:23:31 2016 +1000
drm/nouveau/fbcon: fix out-of-bounds memory accesses
does not properly deal with disabled fbdev emulation.
Can you add a
if (fbcon->helper.fbdev)
before that added line in nouveau_fbcon_init? I assume that will resolve your
issue.
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* [Bug 120591] BUG() in dmesg after loading nouveau module
2016-06-18 16:17 [Bug 120591] New: BUG() in dmesg after loading nouveau module bugzilla-daemon
2016-06-18 16:18 ` [Bug 120591] " bugzilla-daemon
2016-06-18 16:36 ` bugzilla-daemon
@ 2016-06-19 9:00 ` bugzilla-daemon
2016-06-19 9:01 ` bugzilla-daemon
` (5 subsequent siblings)
8 siblings, 0 replies; 10+ messages in thread
From: bugzilla-daemon @ 2016-06-19 9:00 UTC (permalink / raw)
To: dri-devel
https://bugzilla.kernel.org/show_bug.cgi?id=120591
--- Comment #3 from Dmitrii Tcvetkov <demfloro@demfloro.ru> ---
Created attachment 220611
--> https://bugzilla.kernel.org/attachment.cgi?id=220611&action=edit
fix
Suggested by Ilia Mirkin
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* [Bug 120591] BUG() in dmesg after loading nouveau module
2016-06-18 16:17 [Bug 120591] New: BUG() in dmesg after loading nouveau module bugzilla-daemon
` (2 preceding siblings ...)
2016-06-19 9:00 ` bugzilla-daemon
@ 2016-06-19 9:01 ` bugzilla-daemon
2016-06-19 9:01 ` bugzilla-daemon
` (4 subsequent siblings)
8 siblings, 0 replies; 10+ messages in thread
From: bugzilla-daemon @ 2016-06-19 9:01 UTC (permalink / raw)
To: dri-devel
https://bugzilla.kernel.org/show_bug.cgi?id=120591
--- Comment #4 from Dmitrii Tcvetkov <demfloro@demfloro.ru> ---
Thanks, that change helped, nouveau loaded successfully, Xorg started normally.
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* [Bug 120591] BUG() in dmesg after loading nouveau module
2016-06-18 16:17 [Bug 120591] New: BUG() in dmesg after loading nouveau module bugzilla-daemon
` (3 preceding siblings ...)
2016-06-19 9:01 ` bugzilla-daemon
@ 2016-06-19 9:01 ` bugzilla-daemon
2016-06-19 17:30 ` bugzilla-daemon
` (3 subsequent siblings)
8 siblings, 0 replies; 10+ messages in thread
From: bugzilla-daemon @ 2016-06-19 9:01 UTC (permalink / raw)
To: dri-devel
https://bugzilla.kernel.org/show_bug.cgi?id=120591
--- Comment #5 from Dmitrii Tcvetkov <demfloro@demfloro.ru> ---
Created attachment 220621
--> https://bugzilla.kernel.org/attachment.cgi?id=220621&action=edit
dmesg with patched kernel
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* [Bug 120591] BUG() in dmesg after loading nouveau module
2016-06-18 16:17 [Bug 120591] New: BUG() in dmesg after loading nouveau module bugzilla-daemon
` (4 preceding siblings ...)
2016-06-19 9:01 ` bugzilla-daemon
@ 2016-06-19 17:30 ` bugzilla-daemon
2016-06-20 0:27 ` bugzilla-daemon
` (2 subsequent siblings)
8 siblings, 0 replies; 10+ messages in thread
From: bugzilla-daemon @ 2016-06-19 17:30 UTC (permalink / raw)
To: dri-devel
https://bugzilla.kernel.org/show_bug.cgi?id=120591
Dmitrii Tcvetkov <demfloro@demfloro.ru> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution|--- |CODE_FIX
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* [Bug 120591] BUG() in dmesg after loading nouveau module
2016-06-18 16:17 [Bug 120591] New: BUG() in dmesg after loading nouveau module bugzilla-daemon
` (5 preceding siblings ...)
2016-06-19 17:30 ` bugzilla-daemon
@ 2016-06-20 0:27 ` bugzilla-daemon
2016-06-20 11:32 ` bugzilla-daemon
2016-06-24 22:30 ` bugzilla-daemon
8 siblings, 0 replies; 10+ messages in thread
From: bugzilla-daemon @ 2016-06-20 0:27 UTC (permalink / raw)
To: dri-devel
https://bugzilla.kernel.org/show_bug.cgi?id=120591
--- Comment #6 from Ilia Mirkin <imirkin@alum.mit.edu> ---
Dmitrii, you should mail that patch (as a proper commit) to bskeggs@redhat.com
and/or nouveau@lists.freedesktop.org . If you're not sure how to do that, I can
take care of that for you.
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* [Bug 120591] BUG() in dmesg after loading nouveau module
2016-06-18 16:17 [Bug 120591] New: BUG() in dmesg after loading nouveau module bugzilla-daemon
` (6 preceding siblings ...)
2016-06-20 0:27 ` bugzilla-daemon
@ 2016-06-20 11:32 ` bugzilla-daemon
2016-06-24 22:30 ` bugzilla-daemon
8 siblings, 0 replies; 10+ messages in thread
From: bugzilla-daemon @ 2016-06-20 11:32 UTC (permalink / raw)
To: dri-devel
https://bugzilla.kernel.org/show_bug.cgi?id=120591
--- Comment #7 from Dmitrii Tcvetkov <demfloro@demfloro.ru> ---
Thank you for advice, I've sent the patch, mail awaits moderation.
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* [Bug 120591] BUG() in dmesg after loading nouveau module
2016-06-18 16:17 [Bug 120591] New: BUG() in dmesg after loading nouveau module bugzilla-daemon
` (7 preceding siblings ...)
2016-06-20 11:32 ` bugzilla-daemon
@ 2016-06-24 22:30 ` bugzilla-daemon
8 siblings, 0 replies; 10+ messages in thread
From: bugzilla-daemon @ 2016-06-24 22:30 UTC (permalink / raw)
To: dri-devel
https://bugzilla.kernel.org/show_bug.cgi?id=120591
Dmitrii Tcvetkov <demfloro@demfloro.ru> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|RESOLVED |CLOSED
--- Comment #8 from Dmitrii Tcvetkov <demfloro@demfloro.ru> ---
commit 52dfcc5ccfbb6697ac3cac7f7ff1e712760e1216
Author: Dmitrii Tcvetkov <demfloro@demfloro.ru>
Date: Mon Jun 20 13:52:14 2016 +0300
drm/nouveau: fix for disabled fbdev emulation
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