[Bug 41668] New: Screen locks up at random points when using a 3D compositing wm (gnome-shell) on an rv515 (radeon mobility x1300)

[Bug 41668] New: Screen locks up at random points when using a 3D compositing wm (gnome-shell) on an rv515 (radeon mobility x1300)

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https://bugs.freedesktop.org/show_bug.cgi?id=41668

           Summary: Screen locks up at random points when using a 3D
                    compositing wm (gnome-shell) on an rv515 (radeon
                    mobility x1300)
           Product: Mesa
           Version: 7.11
          Platform: x86-64 (AMD64)
        OS/Version: Linux (All)
            Status: NEW
          Severity: critical
          Priority: medium
         Component: Drivers/Gallium/r300
        AssignedTo: dri-devel@lists.freedesktop.org
        ReportedBy: inaudible@simplesuperlativ.es


Created an attachment (id=52202)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=52202)
dmesg output using drm.debug=14

i have an intermittent issue with "ATI Mobility Radeon X1300" on an up-to-date
archlinux laptop running gnome-shell.. all's well until rendering breaks,
sometimes after many hours/days use.. there's no real sign of a repeatable
action and nothing reported in logs.. X continues to run and the mouse cursor
is active, and even changes to represent the screen content.. 

the closest i can get to a repeatable action is an almost certain freeze using
gimp with strenuous brush activity using the clone tool on an average size
image.

if i restart gdm i still have no mouse/keyboard interaction with onscreen
although gdm dress is displayed.. if i killall -HUP gnome-shell in the running
session the window content (without decorations) briefly displays but when it
settles only the background appears

if i switch to the VT and back to X then window content with border decorations
is displayed instead of background image, but still no interaction

i can't launch any X applications from VT or ssh, or use another WM to replace.

`DISPLAY=:0 openbox --replace` results in:

"Invalid MIT-MAGIC-COOKIE-1 keyOpenbox-Message: Failed to open the display from
the DISPLAY environment variable."

however, if i kill gdm, and create an xinitrc for openbox i can start an
Xsession with keybd/mouse interaction, so i guess there's definitely something
up with 3d (offscreen?) rendering

from within the openbox session:
running glxgears just shows an empty black box.. all other glx demos are the
same empty boxes.. 
when i'm logged in to this openbox xsession i can launch xapps via `DISPLAY=:0
foobar` variable.. so this bug i'm encountering must do something to interrupt
the ability to draw new windows?

i can only get a working 3D X session by unloading/reloading kernel drivers.. 
radeon/drm/ttm/drm_kms_helper.. 

here's the very basic script i'm using to unload drivers so i can start X with
3D..
---
#!/bin/bash

# unbind kms fb before unloading modules.. 
echo 0 > /sys/class/vtconsole/vtcon1/bind 
sleep 1

# unload kernel modules
rmmod drm_kms_helper ttm radeon drm
sleep 1

# reload kernel modules
modprobe radeon
---

some basic information:
GL_VERSION:  2.1 Mesa 7.11
GL_VENDOR:   X.Org R300 Project
GL_RENDERER: Gallium 0.4 on ATI RV515
uname -a: Linux neondada 3.0-ARCH #1 SMP PREEMPT Tue Aug 30 08:53:25 CEST 2011
x86_64 Intel(R) Core(TM)2 CPU T5600 @ 1.83GHz GenuineIntel GNU/Linux

i have included output from startx, dmesg (with drm.debug=14), Xorg.0.log &
glxinfo.

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[Bug 41668] Screen locks up at random points when using a 3D compositing wm (gnome-shell) on an rv515 (radeon mobility x1300)

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--- Comment #1 from dmotd <inaudible@simplesuperlativ.es> 2011-10-10 22:09:06 PDT ---
Created an attachment (id=52203)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=52203)
glxinfo

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[Bug 41668] Screen locks up at random points when using a 3D compositing wm (gnome-shell) on an rv515 (radeon mobility x1300)

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--- Comment #2 from dmotd <inaudible@simplesuperlativ.es> 2011-10-10 22:09:52 PDT ---
Created an attachment (id=52204)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=52204)
startx output

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--- Comment #3 from dmotd <inaudible@simplesuperlativ.es> 2011-10-10 22:10:41 PDT ---
Created an attachment (id=52205)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=52205)
Xorg.0.log

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dmotd <inaudible@simplesuperlativ.es> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
  Attachment #52204|application/octet-stream    |text/plain
          mime type|                            |

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dmotd <inaudible@simplesuperlativ.es> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
  Attachment #52203|application/octet-stream    |text/plain
          mime type|                            |

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dmotd <inaudible@simplesuperlativ.es> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
  Attachment #52202|application/octet-stream    |text/plain
          mime type|                            |

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--- Comment #4 from Michel Dänzer <michel@daenzer.net> 2011-10-11 02:34:52 PDT ---
> `DISPLAY=:0 openbox --replace` results in:
> 
> "Invalid MIT-MAGIC-COOKIE-1 keyOpenbox-Message: Failed to open the display from
> the DISPLAY environment variable."

This is because gdm3 uses a non-default X11 authentication cookie. I use
something like

XAUTHORITY=/run/gdm3/$(sudo ls /run/gdm3|grep $(whoami))/database DISPLAY=:0
[...]

to work around it.


> running glxgears just shows an empty black box.. all other glx demos are the
> same empty boxes.. 

Do they work with the environment variable vblank_mode=0? If yes, does the
number for radeon increase in /proc/interrupts once the problem occurs?

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[Bug 41668] Screen locks up at random points when using a 3D compositing wm (gnome-shell) on an rv515 (radeon mobility x1300)

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https://bugs.freedesktop.org/show_bug.cgi?id=41668

Jeremy Huddleston <jeremyhu@freedesktop.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
  Status Whiteboard|                            |2011BRB_Reviewed
           Priority|medium                      |high

--- Comment #5 from Jeremy Huddleston <jeremyhu@freedesktop.org> 2011-10-11 09:28:49 PDT ---
Do you have records of when you updated the kernel last?  What kernel version 
did you have before you started experiencing this issue?

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Jeremy Huddleston <jeremyhu@freedesktop.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
  Status Whiteboard|2011BRB_Reviewed            |

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--- Comment #6 from dmotd <inaudible@simplesuperlativ.es> 2011-10-11 19:25:07 PDT ---
(In reply to comment #4)
> > `DISPLAY=:0 openbox --replace` results in:
> > 
> > "Invalid MIT-MAGIC-COOKIE-1 keyOpenbox-Message: Failed to open the display from
> > the DISPLAY environment variable."
> 
> This is because gdm3 uses a non-default X11 authentication cookie. I use
> something like
> 
> XAUTHORITY=/run/gdm3/$(sudo ls /run/gdm3|grep $(whoami))/database DISPLAY=:0
> [...]
> 
> to work around it.

i've since ditched a graphical login, i've had better success reinitiating X
with startx.. the last freeze i had i managed to initiate an openbox session
(---replace) on top of the failed gnome-shell (which i killed, and switched
'fallback mode' from the cmdline). the result was many windows were inactive
and frozen (ie. evolution, gnome-terminal, chromium), while a few others (gvim
was one, and empathy was another) remained active and usable. i could however
start new instances without issue.

> 
> > running glxgears just shows an empty black box.. all other glx demos are the
> > same empty boxes.. 
> 
> Do they work with the environment variable vblank_mode=0? If yes, does the
> number for radeon increase in /proc/interrupts once the problem occurs?

setting vblank_mode=0 works and displays an output.. but not much change in
/proc/interrupts (irq 46 for radeon) i'll attach the output from after the
freeze and one from a fresh happy boot..

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--- Comment #7 from dmotd <inaudible@simplesuperlativ.es> 2011-10-11 19:27:14 PDT ---
Created an attachment (id=52248)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=52248)
/proc/interrupts after the freeze

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--- Comment #8 from dmotd <inaudible@simplesuperlativ.es> 2011-10-11 19:28:12 PDT ---
Created an attachment (id=52249)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=52249)
/proc/interrupts on a fresh (working) boot..

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--- Comment #9 from dmotd <inaudible@simplesuperlativ.es> 2011-10-11 19:42:06 PDT ---
(In reply to comment #5)
> Do you have records of when you updated the kernel last?  What kernel version 
> did you have before you started experiencing this issue?

it has been occurring since i made the transition to gnome-shell about two
months ago, but i believe it was occurring before in another compositing
environment  (enlightenment e17 with the ecomporph /ecomp extension - a compiz
fork) which i wrongly attributed to the unstable nature of the e17/ecomorph
codebase.. i didn't really test that for very long, although i can tell you
that i tested it in march of this year, and some quick googling suggests that
it would have been running with a 2.6.37 kernel on archlinux then. sorry i
don't have package logs going back that far.

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--- Comment #10 from Michel Dänzer <michel@daenzer.net> 2011-10-12 03:07:04 PDT ---
(In reply to comment #6)
> > > running glxgears just shows an empty black box.. all other glx demos are the
> > > same empty boxes.. 
> > 
> > Do they work with the environment variable vblank_mode=0? If yes, does the
> > number for radeon increase in /proc/interrupts once the problem occurs?
> 
> setting vblank_mode=0 works and displays an output.. but not much change in
> /proc/interrupts (irq 46 for radeon)

Not much change for the radeon number, or none at all? If the latter,
apparently the IRQ for the radeon card stops working for some reason, which
would explain the core symptoms of the freeze.

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[Bug 41668] Screen locks up at random points when using a 3D compositing wm (gnome-shell) on an rv515 (radeon mobility x1300)

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--- Comment #11 from dmotd <inaudible@simplesuperlativ.es> 2011-10-12 03:24:07 PDT ---
(In reply to comment #10)
> (In reply to comment #6)
> > > > running glxgears just shows an empty black box.. all other glx demos are the
> > > > same empty boxes.. 
> > > 
> > > Do they work with the environment variable vblank_mode=0? If yes, does the
> > > number for radeon increase in /proc/interrupts once the problem occurs?
> > 
> > setting vblank_mode=0 works and displays an output.. but not much change in
> > /proc/interrupts (irq 46 for radeon)
> 
> Not much change for the radeon number, or none at all? If the latter,
> apparently the IRQ for the radeon card stops working for some reason, which
> would explain the core symptoms of the freeze.

no change to the radeon irq number.

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--- Comment #12 from dmotd <inaudible@simplesuperlativ.es> 2011-10-12 23:27:01 PDT ---
(In reply to comment #11)
> (In reply to comment #10)
> > (In reply to comment #6)
> > > > > running glxgears just shows an empty black box.. all other glx demos are the
> > > > > same empty boxes.. 
> > > > 
> > > > Do they work with the environment variable vblank_mode=0? If yes, does the
> > > > number for radeon increase in /proc/interrupts once the problem occurs?
> > > 
> > > setting vblank_mode=0 works and displays an output.. but not much change in
> > > /proc/interrupts (irq 46 for radeon)
> > 
> > Not much change for the radeon number, or none at all? If the latter,
> > apparently the IRQ for the radeon card stops working for some reason, which
> > would explain the core symptoms of the freeze.
> 
> no change to the radeon irq number.

is there a way i can debug this further?

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--- Comment #13 from Alex Deucher <agd5f@yahoo.com> 2011-10-13 06:01:08 PDT ---
Try the following options in the kernel command line in grub:
pci=nomsi
noapic
irqpoll
and see if any of them help.

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--- Comment #14 from dmotd <inaudible@simplesuperlativ.es> 2011-10-24 16:46:17 PDT ---
(In reply to comment #13)
> Try the following options in the kernel command line in grub:
> pci=nomsi
> noapic
> irqpoll
> and see if any of them help.

I have been running my machine with all the above kernel flags appended and i
haven't yet experienced an issue. I haven't had a chance to exhaustively test
these settings, but my machine has been active for a few days now without a
screen lock, so I thought I would report back that this seems to help.

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--- Comment #15 from Alex Deucher <agd5f@yahoo.com> 2011-10-24 16:47:39 PDT ---
(In reply to comment #14)
> (In reply to comment #13)
> > Try the following options in the kernel command line in grub:
> > pci=nomsi
> > noapic
> > irqpoll
> > and see if any of them help.
> 
> I have been running my machine with all the above kernel flags appended and i
> haven't yet experienced an issue. I haven't had a chance to exhaustively test
> these settings, but my machine has been active for a few days now without a
> screen lock, so I thought I would report back that this seems to help.

Can you narrow down which specific one helps?

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--- Comment #16 from Przemyslaw Kochanski <przemyslaw@kochanski.biz> 2011-12-14 17:38:59 PST ---
Created attachment 54445
  --> https://bugs.freedesktop.org/attachment.cgi?id=54445
output of glxinfo

I'm experiencing the same issue on Ubuntu 11.10. I'm ready to provide all
necessary backtrace. I'm attaching gnome-shell backtrace and glxinfo output.
Same issue is reported on gnome-shell bugtracker:
https://bugzilla.gnome.org/show_bug.cgi?id=650857 but they claim its either X
or the drivers fault.

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--- Comment #17 from Przemyslaw Kochanski <przemyslaw@kochanski.biz> 2011-12-14 17:39:45 PST ---
Created attachment 54446
  --> https://bugs.freedesktop.org/attachment.cgi?id=54446
gdb gnome-shell backtrace

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--- Comment #20 from Alex Deucher <agd5f@yahoo.com> 2011-12-15 07:21:45 UTC ---
I would suggest emailing the linux-kernel mailing list and saying that you need
noapic or pci=msi to get things working on your board.  Include the hw details
of your system (lspci, etc.).

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--- Comment #18 from Przemyslaw Kochanski <przemyslaw@kochanski.biz> 2011-12-15 06:20:29 PST ---
(In reply to comment #13)
> Try the following options in the kernel command line in grub:
> pci=nomsi
> noapic
> irqpoll
> and see if any of them help.

I've tried your suggestion and it worked! I've discovered the following:

"pci=nomsi noapic irqpoll" no freeze
"pci=nomsi irqpoll" no freeze
"irqpoll" no freeze
"pci=nomsi" no freeze
"noapic" no freeze
"" freeze

So far without any of this options I can reproduce the crash in 100% cases
under 1 minute of moving image in Gimp. I did it many times when backtracing.
However, there is slight probability that I just got lucky with one of options.
I'm 100% sure I've run `update-grub` after every /etc/default/grub change.

Assuming that all of this options fix the problem, which option should I use
(witch one disables least things)? I found the following but I don't understand
much:

noapic: [SMP,APIC] Tells the kernel to not make use of any IOAPICs that may be
present in the system.

irqpoll: [HW] When an interrupt is not handled search all handlersfor it. Also
check all handlers each timerinterrupt. Intended to get systems with badly
brokenfirmware running.

pci=nomsi: [MSI] If the PCI_MSI kernel config parameter isenabled, this kernel
boot option can be used todisable the use of MSI interrupts system-wide.

And finally: Is it a proper fix, or just a workaround?

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--- Comment #19 from Alex Deucher <agd5f@yahoo.com> 2011-12-15 07:19:31 PST ---
(In reply to comment #18)
> And finally: Is it a proper fix, or just a workaround?

It's a workaround.  Since those options work, it's not a radeon bug.  It's most
likely a platform bug for your board; probably a bad apic or msi setup for your
chipset.  You might need an apic or pci quirk for your motherboard chipset.

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--- Comment #21 from Dave Airlie <airlied@freedesktop.org> 2012-02-12 08:59:56 UTC ---
Alex I think this is a driver or hw bug actually.

I seem to lose MSI rearms here, if I manually poke a rearm in from userspace over ssh the system recovers fine.

not sure if we should disable MSI on rv515, you might be able to find some info internally.

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--- Comment #23 from Alex Deucher <agd5f@yahoo.com> 2012-02-13 13:40:27 UTC ---
Created attachment 56992
  --> https://bugs.freedesktop.org/attachment.cgi?id=56992
possible fix

Does this patch help?

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[Bug 41668] Screen locks up at random points when using a 3D compositing wm (gnome-shell) on an rv515 (radeon mobility x1300)

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https://bugs.freedesktop.org/show_bug.cgi?id=41668

--- Comment #22 from Alex Deucher <agd5f@yahoo.com> 2012-02-13 06:20:04 PST ---
(In reply to comment #21)
> Alex I think this is a driver or hw bug actually.
> 
> I seem to lose MSI rearms here, if I manually poke a rearm in from userspace over ssh the system recovers fine.
> 
> not sure if we should disable MSI on rv515, you might be able to find some info internally.

I'll see what I can find, but r5xx is pretty old.  Did reading back the rearm reg help?

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[Bug 41668] Screen locks up at random points when using a 3D compositing wm (gnome-shell) on an rv515 (radeon mobility x1300)

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https://bugs.freedesktop.org/show_bug.cgi?id=41668

--- Comment #24 from Florian Mickler <florian@mickler.org> 2012-02-19 03:19:27 PST ---
A patch referencing this bug report has been merged in Linux v3.3-rc4:

commit b7f5b7dec3d539a84734f2bcb7e53fbb1532a40b
Author: Alex Deucher <alexander.deucher@amd.com>
Date:   Mon Feb 13 16:36:34 2012 -0500

    drm/radeon/kms: fix MSI re-arm on rv370+

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[Bug 41668] Screen locks up at random points when using a 3D compositing wm (gnome-shell) on an rv515 (radeon mobility x1300)

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https://bugs.freedesktop.org/show_bug.cgi?id=41668

--- Comment #25 from Dave Airlie <airlied@freedesktop.org> 2012-02-19 04:25:45 PST ---
still seeing the odd lockup will play for a few more days though.

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[Bug 41668] Screen locks up at random points when using a 3D compositing wm (gnome-shell) on an rv515 (radeon mobility x1300)

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https://bugs.freedesktop.org/show_bug.cgi?id=41668

--- Comment #26 from Michel Dänzer <michel@daenzer.net> 2012-04-24 01:37:57 PDT ---
Current kernels disable MSI by default for RV515. Does that resolve this
report?

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[Bug 41668] Screen locks up at random points when using a 3D compositing wm (gnome-shell) on an rv515 (radeon mobility x1300)

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https://bugs.freedesktop.org/show_bug.cgi?id=41668

--- Comment #27 from dmotd <inaudible@simplesuperlativ.es> 2012-04-25 19:44:29 PDT ---
apologies for the many months without reply - i have not been in a position to
contribute after making the initial bug report.

i recently performed a system update and am currently running kernel 3.3.1 on
archlinux, i can confirm that this bug is still present, and i am still getting
occasional graphics freezes of the same nature to before. once again i can get
openbox to replace the affected x session, so basic rendering is still okay.

i did get an opportunity to test pci=nomsi for a while and noticed that while
there were no freezes of this nature, the 3d graphics rendering would sometimes
receive a slight unexplained performance hit (visual lag) that would remain for
the rest of the session, a minor effect but not debilitating to general use.

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https://bugs.freedesktop.org/show_bug.cgi?id=41668

--- Comment #28 from Tomasz P. <son_of_the_osiris@interia.pl> ---
Is it still a issue with current mesa and kernel ??

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[Bug 41668] Screen locks up at random points when using a 3D compositing wm (gnome-shell) on an rv515 (radeon mobility x1300)

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https://bugs.freedesktop.org/show_bug.cgi?id=41668

Tomasz P. <son_of_the_osiris@interia.pl> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |FIXED

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