[Bug 60182] New: X.Org Server terminate when I close video player

[Bug 60182] New: X.Org Server terminate when I close video player

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https://bugs.freedesktop.org/show_bug.cgi?id=60182

          Priority: medium
            Bug ID: 60182
          Assignee: dri-devel@lists.freedesktop.org
           Summary: X.Org Server terminate when I close video player
          Severity: critical
    Classification: Unclassified
                OS: Linux (All)
          Reporter: runetmember@gmail.com
          Hardware: x86-64 (AMD64)
            Status: NEW
           Version: unspecified
         Component: DRM/Radeon
           Product: DRI

X.Org Server terminate when I close VLC (OpenGL GLX video output).
This issue not reproducible when VLC doesn't playback anything. So only closing
player that still playback video trigger issue.
Issue reproducible not every time (around 1 of 10 closing VLC get X.Org Server
termination).
Issue tested only on integrated GPU (Radeon HD 6620G).

Kubuntu 13.04 x86_64
Linux 3.8rc6 (with Linux 3.7 is also reproducible).
Mesa: 9.0.2 (with 9.1 is also reproducible)
libdrm-radeon1: 2.4.41
xserver-xorg-video-radeon: 7.1.0
xserver-xorg-core: 1.13.2
KDE 4.9.98 (4.10rc3)

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[Bug 60182] X.Org Server terminate when I close video player

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https://bugs.freedesktop.org/show_bug.cgi?id=60182

--- Comment #1 from runetmember@gmail.com ---
Created attachment 74078
  --> https://bugs.freedesktop.org/attachment.cgi?id=74078&action=edit
Log of terminated X.Org Server

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[Bug 60182] X.Org Server terminate when I close video player

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https://bugs.freedesktop.org/show_bug.cgi?id=60182

--- Comment #2 from runetmember@gmail.com ---
Created attachment 74079
  --> https://bugs.freedesktop.org/attachment.cgi?id=74079&action=edit
dmesg

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[Bug 60182] X.Org Server terminate when I close video player

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https://bugs.freedesktop.org/show_bug.cgi?id=60182

--- Comment #3 from runetmember@gmail.com ---
Also a little bit info, just in case:
Exact GPU model: 1002:6741 Advanced Micro Devices [AMD] nee ATI BeaverCreek
[Mobility Radeon HD 6620G]
VLC version: 2.0.5.

If I need to provide any additional information, please let me know.

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[Bug 60182] X.Org Server terminate when I close video player

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https://bugs.freedesktop.org/show_bug.cgi?id=60182

--- Comment #4 from Michel Dänzer <michel@daenzer.net> ---
The attached log ends abruptly. Is there more information in the kdm log file?

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[Bug 60182] X.Org Server terminate when I close video player

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https://bugs.freedesktop.org/show_bug.cgi?id=60182

--- Comment #5 from runetmember@gmail.com ---
> Is there more information in the kdm log file?
I use LightDM-KDE. I'll look into LightDM log next time.

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[Bug 60182] X.Org Server terminate when I close video player

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https://bugs.freedesktop.org/show_bug.cgi?id=60182

--- Comment #6 from Ilija Hadzic <ihadzic@research.bell-labs.com> ---
Created attachment 74183
  --> https://bugs.freedesktop.org/attachment.cgi?id=74183&action=edit
Possible "Band-Aid" to get you going.

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[Bug 60182] X.Org Server terminate when I close video player

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https://bugs.freedesktop.org/show_bug.cgi?id=60182

--- Comment #7 from Ilija Hadzic <ihadzic@research.bell-labs.com> ---
I have just posted a patch that may help at least prevent the crash. I have
seen this bug on my end too, but I though that I locally introduced it with my
own hacks. The patch does not solve the root cause (i.e. buffer double-free),
but if it prevents the crash, maybe we can apply it to get people going until
we find the real solution.

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[Bug 60182] X.Org Server terminate when I close video player

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https://bugs.freedesktop.org/show_bug.cgi?id=60182

--- Comment #8 from runetmember@gmail.com ---
So since you find root case, LightDM log is not necessary now, I am correct?

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[Bug 60182] X.Org Server terminate when I close video player

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https://bugs.freedesktop.org/show_bug.cgi?id=60182

--- Comment #9 from Ilija Hadzic <ihadzic@research.bell-labs.com> ---
(In reply to comment #8)
> So since you find root case, LightDM log is not necessary now, I am correct?

No, I didn't find the root cause. I am only assuming (based on the last message
in your Xorg.0.log file) that you are seeing the same kind of a crash that I
have been seeing recently.

So I would like you to test if the patch that I posted fixes the problem for
you. If it does, then there are two open issues that remain: a) should we push
my patch upstream (i.e. to at least prevent the crash of affected users like
you) and b) what really causes the double-free. The latter is what we have no
idea about yet.

Any additional logs that you can produce in the meantime would be useful.

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[Bug 60182] X.Org Server terminate when I close video player

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https://bugs.freedesktop.org/show_bug.cgi?id=60182

--- Comment #10 from runetmember@gmail.com ---
> So I would like you to test if the patch that I posted fixes the problem for you. 
Unfortunately, I am not developer, I can't check this patch.

> Any additional logs that you can produce in the meantime would be useful.
Ok.

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[Bug 60182] X.Org Server terminate when I close video player

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https://bugs.freedesktop.org/show_bug.cgi?id=60182

--- Comment #11 from runetmember@gmail.com ---
Created attachment 74462
  --> https://bugs.freedesktop.org/attachment.cgi?id=74462&action=edit
lightdm.log after crash

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[Bug 60182] X.Org Server terminate when I close video player

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https://bugs.freedesktop.org/show_bug.cgi?id=60182

--- Comment #12 from runetmember@gmail.com ---
Created attachment 74464
  --> https://bugs.freedesktop.org/attachment.cgi?id=74464&action=edit
x-0.log LightDM log after crash

LightDM logs in right-after-crash state attached.

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[Bug 60182] X.Org Server terminate when I close video player

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https://bugs.freedesktop.org/show_bug.cgi?id=60182

--- Comment #13 from lbdkmjdf@sharklasers.com ---
Created attachment 82065
  --> https://bugs.freedesktop.org/attachment.cgi?id=82065&action=edit
X crashlog

I got hit by the same bug... Xorg crashes when closing glxgears (simply press X
and expect X to crash sometimes...). GPU is HD 6520g.

I built the driver in ubuntu (13.04, amd64, KDE/LXDE) this way (skip if you
don't care, I'm posting this to show you how I did it, to be sure it's done
correctly, and finally, for my own record...):

I took the instructions from the buildlog in the PPA:
https://launchpadlibrarian.net/141183209/buildlog_ubuntu-raring-amd64.xserver-xorg-video-ati_1%3A7.1.99%2Bgit20130531.bd2557ea-0ubuntu0sarvatt~raring_UPLOADING.txt.gz

mkdir temp && cd temp && apt-get source
xserver-xorg-video-ati=1:7.1.99+git20130531.bd2557ea-0ubuntu0sarvatt~raring
sudo apt-get -s build-dep xserver-xorg-video-ati
cd xserver-xorg-video-ati-7.1.99+git20130531.bd2557ea/
(edited src/radeon_dri2.c, patched manually)
/usr/bin/fakeroot debian/rules clean
debian/rules build-arch
/usr/bin/fakeroot debian/rules binary-arch

last message I got is:  "dpkg-deb: building package
`xserver-xorg-video-radeon-dbg' in
`../xserver-xorg-video-radeon-dbg_7.1.99+git20130531.bd2557ea-0ubuntu0sarvatt~raring_amd64.deb'."

so, I installed that package... and I got the crash showed in the logs, and
then the X server restarted.
This is the relevant part:

[  4161.932] (WW) Attempted to destroy previously destroyed buffer. This is a
programming error
[  4161.932] (WW) Attempted to destroy previously destroyed buffer. This is a
programming error
[  4165.699] (EE) 
[  4165.699] (EE) Backtrace:
[  4165.700] (EE) 0: /usr/bin/X (xorg_backtrace+0x36) [0x7fcd2ef63516]
[  4165.700] (EE) 1: /usr/bin/X (0x7fcd2edb3000+0x1b4359) [0x7fcd2ef67359]
[  4165.700] (EE) 2: /lib/x86_64-linux-gnu/libpthread.so.0
(0x7fcd2deb6000+0xfbd0) [0x7fcd2dec5bd0]
[  4165.700] (EE) 3: /usr/lib/xorg/modules/drivers/radeon_drv.so
(0x7fcd2b521000+0x4017c) [0x7fcd2b56117c]
[  4165.700] (EE) 4: /usr/lib/xorg/modules/drivers/radeon_drv.so
(0x7fcd2b521000+0x40cb0) [0x7fcd2b561cb0]
[  4165.700] (EE) 5: /usr/bin/X (_CallCallbacks+0x34) [0x7fcd2ee105d4]
[  4165.700] (EE) 6: /usr/bin/X (CloseDownClient+0x54) [0x7fcd2ee0afb4]
[  4165.700] (EE) 7: /usr/bin/X (0x7fcd2edb3000+0x58b35) [0x7fcd2ee0bb35]
[  4165.700] (EE) 8: /usr/bin/X (0x7fcd2edb3000+0x475aa) [0x7fcd2edfa5aa]
[  4165.700] (EE) 9: /lib/x86_64-linux-gnu/libc.so.6 (__libc_start_main+0xf5)
[0x7fcd2cb02ea5]
[  4165.700] (EE) 10: /usr/bin/X (0x7fcd2edb3000+0x478f1) [0x7fcd2edfa8f1]
[  4165.700] (EE) 
[  4165.700] (EE) Segmentation fault at address 0x0
[  4165.700] 
Fatal server error:
[  4165.700] Caught signal 11 (Segmentation fault). Server aborting


I hope this helps.

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[Bug 60182] X.Org Server terminate when I close video player

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https://bugs.freedesktop.org/show_bug.cgi?id=60182

--- Comment #14 from lbdkmjdf@sharklasers.com ---
so I forgot to install the -dbg packages, but... X server will not crash with
these, so it won't help anyway :/ (and I tried to make it crash a lot of times
after installing the -dbg packages). from what I've read, this is a common bug
in C/C++ programming... 

here's another backtrace:

reporting 8 3 8 60
(EE) 
(EE) Backtrace:
(EE) 0: /usr/bin/X (xorg_backtrace+0x36) [0x7fb36816e516]
(EE) 1: /usr/bin/X (0x7fb367fbe000+0x1b4359) [0x7fb368172359]
(EE) 2: /lib/x86_64-linux-gnu/libpthread.so.0 (0x7fb3670c1000+0xfbd0)
[0x7fb3670d0bd0]
(EE) 3: /usr/lib/xorg/modules/drivers/radeon_drv.so (0x7fb36472c000+0x426f2)
[0x7fb36476e6f2]
(EE) 4: /usr/bin/X (BlockHandler+0x44) [0x7fb36801abc4]
(EE) 5: /usr/bin/X (WaitForSomething+0x114) [0x7fb36816b894]
(EE) 6: /usr/bin/X (0x7fb367fbe000+0x58841) [0x7fb368016841]
(EE) 7: /usr/bin/X (0x7fb367fbe000+0x475aa) [0x7fb3680055aa]
(EE) 8: /lib/x86_64-linux-gnu/libc.so.6 (__libc_start_main+0xf5)
[0x7fb365d0dea5]
(EE) 9: /usr/bin/X (0x7fb367fbe000+0x478f1) [0x7fb3680058f1]
(EE) 
(EE) Segmentation fault at address 0x0

Fatal server error:
Caught signal 11 (Segmentation fault). Server aborting

(EE) 
Please consult the The X.Org Foundation support 
         at http://wiki.x.org
 for help. 
(EE) Please also check the log file at "/var/log/Xorg.0.log" for additional
information.
(EE) 
Server terminated with error (1). Closing log file.
Sessions still open, not unmounting

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[Bug 60182] X.Org Server terminate when I close video player

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https://bugs.freedesktop.org/show_bug.cgi?id=60182

--- Comment #15 from Alex Deucher <agd5f@yahoo.com> ---
Does the patch in comment 6 help?

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https://bugs.freedesktop.org/show_bug.cgi?id=60182

--- Comment #16 from lbdkmjdf@sharklasers.com ---
(In reply to comment #15)
> Does the patch in comment 6 help?

yes, the patch helped a bit... it made it hard to crash xserver, but it crashes
twice after applying it. although, I'm not sure it's just one bug

I got a core dump. here's a backtrace from gdb: http://pastebin.com/T3Vih0ND .
does it make sense?

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https://bugs.freedesktop.org/show_bug.cgi?id=60182

--- Comment #17 from lbdkmjdf@sharklasers.com ---
sorry, I meant "but it crashed twice" in the previous post.
Yet another backtrace:  http://pastebin.com/aVq5Uhyf

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https://bugs.freedesktop.org/show_bug.cgi?id=60182

--- Comment #18 from Michel Dänzer <michel@daenzer.net> ---
Can someone who can reproduce the problem attach gdb to the X server process
and set a breakpoint where it would print 'Attempted to destroy previously
destroyed buffer.'? Then when it triggers, attach the output of 'bt full' at
the gdb prompt.

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[Bug 60182] X.Org Server terminate when I close video player

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https://bugs.freedesktop.org/show_bug.cgi?id=60182

--- Comment #19 from Weber K. <weberkai@yahoo.com.br> ---
Hi!
This error is happening here also...
Slackware64 linux on AMD Phenom II 1055T, with XFX Radeon HD6850 and open
source drivers radeon.

The X server crash after second close of programs... The first execution goes
fine... Then second crashes...

When mplayer -vo gl2 exits or when I try to execute my own Open GL programs
using SDL calls. The error dont occur with the game warzone 2100, with I think
is strange.

Ill try gdb the X server... If I succeed Ill post the logs.
Thanks!

[  9852.952] (WW) RADEON(0): Attempted to destroy previously destroyed buffer.
This is a programming error
[  9852.952] 
[  9852.952] Backtrace:
[  9852.953] 0: /usr/bin/X (xorg_backtrace+0x36) [0x55d526]
[  9852.953] 1: /usr/bin/X (0x400000+0x160ee9) [0x560ee9]
[  9852.953] 2: /lib64/libpthread.so.0 (0x7fc155cf6000+0xf4e0) [0x7fc155d054e0]
[  9852.953] 3: /usr/lib64/xorg/modules/drivers/radeon_drv.so
(0x7fc152ce1000+0xd12e6) [0x7fc152db22e6]
[  9852.953] 4: /usr/lib64/xorg/modules/drivers/radeon_drv.so
(0x7fc152ce1000+0xd1c19) [0x7fc152db2c19]
[  9852.953] 5: /usr/bin/X (_CallCallbacks+0x34) [0x439434]
[  9852.953] 6: /usr/bin/X (CloseDownClient+0x52) [0x434212]
[  9852.953] 7: /usr/bin/X (0x400000+0x34d95) [0x434d95]
[  9852.953] 8: /usr/bin/X (0x400000+0x23f05) [0x423f05]
[  9852.953] 9: /lib64/libc.so.6 (__libc_start_main+0xf5) [0x7fc1540cda95]
[  9852.953] 10: /usr/bin/X (0x400000+0x241dd) [0x4241dd]
[  9852.953] 
[  9852.953] Segmentation fault at address 0x18
[  9852.953] 
Fatal server error:
[  9852.953] Caught signal 11 (Segmentation fault). Server aborting
[  9852.953] 
[  9852.953] 
Please consult the The X.Org Foundation support 
     at http://wiki.x.org
 for help.

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--- Comment #20 from Weber K. <weberkai@yahoo.com.br> ---
Here is what Ive got!
If this dont help, please give me more details and I will try my best!
Thanks in advance!
xf86-video-ati 6.14.4
xorg-server 1.12.4

Program received signal SIGSEGV, Segmentation fault.
0x00007ff17f1ad465 in radeon_dri2_destroy_buffer (drawable=0x343bbb0, 
    buffers=0x342cc40) at radeon_dri2.c:419
419                xf86DrvMsg(scrn->scrnIndex, X_WARNING, 
(gdb) bt f
#0  0x00007ff17f1ad465 in radeon_dri2_destroy_buffer (drawable=0x343bbb0, 
    buffers=0x342cc40) at radeon_dri2.c:419
        scrn = 0x0
        pScreen = 0x30a0300
        private = 0x343d8f0
#1  0x00007ff17f1ad845 in radeon_dri2_unref_buffer (buffer=0x342cc40)
    at radeon_dri2.c:585
        private = 0x343d8f0
#2  0x00007ff17f1ad8ec in radeon_dri2_client_state_changed (
    ClientStateCallback=0x860c20 <ClientStateCallback>, data=0x0, 
    calldata=0x7fff2094cb90) at radeon_dri2.c:610
        pClientEventsPriv = 0x345a4d0
        ref = 0x353ca60
        clientinfo = 0x7fff2094cb90
        pClient = 0x345a410
#3  0x000000000043fd67 in _CallCallbacks (pcbl=0x860c20 <ClientStateCallback>, 
    call_data=0x7fff2094cb90) at dixutils.c:715
        cbl = 0x2880a40
        cbr = 0x2881050
        pcbr = 0x0
#4  0x00000000004311fb in CallCallbacks (pcbl=0x860c20 <ClientStateCallback>, 
    call_data=0x7fff2094cb90) at ../include/callback.h:83
No locals.
#5  0x000000000043926b in CloseDownClient (client=0x345a410) at dispatch.c:3380
        clientinfo = {client = 0x345a410, prefix = 0x0, setup = 0x0}
        really_close_down = 1
#6  0x00000000004317ab in Dispatch () at dispatch.c:402
        clientReady = 0x2ff5ee0
        result = -1
        client = 0x345a410
        nready = 0
        icheck = 0x860c30 <checkForInput>
        start_tick = 320
#7  0x0000000000422911 in main (argc=4, argv=0x7fff2094cd58, 
    envp=0x7fff2094cd80) at main.c:288
        i = 2
        alwaysCheckForInput = {0, 1}

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[Bug 60182] X.Org Server terminate when I close video player

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https://bugs.freedesktop.org/show_bug.cgi?id=60182

--- Comment #21 from Weber K. <weberkai@yahoo.com.br> ---
Hello!
I think I found a workaround!

At this file:
https://github.com/RAOF/xf86-video-ati/blob/master/src/radeon_dri2.c

At line 608:
Changed from:
            xorg_list_for_each_entry(ref, &pClientEventsPriv->reference_list,
link) {
                ref->valid = FALSE;
                radeon_dri2_unref_buffer(ref->front);
                radeon_dri2_unref_buffer(ref->back);
            }

Replaced by:
            xorg_list_for_each_entry(ref, &pClientEventsPriv->reference_list,
link) {
        if (ref->valid) {
                    ref->valid = FALSE;
                    radeon_dri2_unref_buffer(ref->front);
                    radeon_dri2_unref_buffer(ref->back);
        }
            }

I just checked valid before the calls, but I still cannot find what is making
double calls...

Maybe its because I have two boards? Onboard HD4250 e PCIE HD6850?

Thanks!
Weber Kai

bash-4.2# lspci
01:05.0 VGA compatible controller: Advanced Micro Devices [AMD] nee ATI RS880
[Radeon HD 4250]
01:05.1 Audio device: Advanced Micro Devices [AMD] nee ATI RS880 HDMI Audio
[Radeon HD 4200 Series]
02:00.0 VGA compatible controller: Advanced Micro Devices [AMD] nee ATI Barts
PRO [ATI Radeon HD 6800 Series]
02:00.1 Audio device: Advanced Micro Devices [AMD] nee ATI Barts HDMI Audio
[Radeon HD 6800 Series]

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https://bugs.freedesktop.org/show_bug.cgi?id=60182

--- Comment #22 from Alex Deucher <agd5f@yahoo.com> ---
Can you try a vanilla xf86-video-ati rather than the ubuntu version?  This
looks like it may be specific to their version.

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--- Comment #23 from Weber K. <weberkai@yahoo.com.br> ---
Hi!

Ive found that (for me) this layout is causing the error:
Section "ServerLayout"
  Identifier     "My X Server"
  Screen      0  "LeftScreen" 0 0
  Screen      1  "RightScreen" RightOf "LeftScreen"
    InputDevice "Mouse1" "CorePointer"
    InputDevice "Keyboard1" "CoreKeyboard"
EndSection

If I remove "Screen 1" then the error dont occur... Both devices are using
radeon driver...

I cannot test if the error occur only when both devices are radeon, or if
having two Screens of any type...

I think the destroy buffer is called twice because of two screens...

Anyway, the workaround of checking "valid" value fixes this issue for me...

Sorry, I cant test vanilla, I am using Slackware64... Ive downloaded the source
DVD and changed x11.SlackBuild... Only changed CFLAGS to -O0 -g3 and removed
"strip" symbols...

Thanks...
Weber Kai

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--- Comment #24 from Weber K. <weberkai@yahoo.com.br> ---
Looking at neuromancer Xorg log, I found out:
[     7.278] (--) RADEON(0): Chipset: "SUMO" (ChipID = 0x9641)
[     7.548] (--) RADEON(G0): Chipset: "TURKS" (ChipID = 0x6741)

I think its a problem only with two devices with radeon driver...
After closing client, the destroy buffer is called twice, and causes the
error...

I can workaround, but I cant fix it the right way... I have no experience with
Xorg or radeon driver... I dont know either how to edit the subject of the
bug...

Please... Help us...

Thanks in advance!
Weber Kai

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--- Comment #25 from lbdkmjdf@sharklasers.com ---
Yes, this, aparently, only happens in dual AMD graphics laptops (with llano)...
and I found a workaround:
you have to disable the second (discrete) GPU:

echo OFF > /sys/kernel/debug/vgaswitcheroo/switch

and it will not crash anymore... Sadly, vgaswitcheroo throws a big warning in
dmesg: http://pastebin.com/rXj8rrZa (I'm using kernel 3.11.0-6 from ubuntu's
proposed repos) , after which "/sys/kernel/debug/vgaswitcheroo/" disappears
completely and I'm not able to use the dGPU until the next boot. I will have to
report this.. dunno where though. (and also, I always get a black screen after
resume from suspend to RAM).

as I said before, the patch "helped", i.e., made it harder to crash, but apps
(glxgears, vlc, mplayer + gl) will crash nonetheless.

I hope this helps. And I want to thank the devs for their great job with the
radeon FOSS driver!

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--- Comment #26 from Weber K. <weberkai@yahoo.com.br> ---
During a test, I needed to issue 2 "cont" commands at gdb to advance just one
frame at one breakpoint I trapped. And when closing the player, I issued twice
"cont" at gdb, and only after the segfault occured.

I suspect the function "radeon_dri2_screen_init" at "radeon_dri2.c" is called
twice, one for each Screen, and then this routine is scheduling the
"radeon_dri2_client_state_changed" routine twice with "AddCallBack".

This way, when the client state is changed to gone, the "destroy buffers"
routine is called twice either, and the error occur.

I also want to thank the devs for the radeon driver!
Thank you!

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--- Comment #27 from Weber K. <weberkai@yahoo.com.br> ---
I think Ive got it! :)

Changed this file:
https://github.com/RAOF/xf86-video-ati/blob/master/src/radeon_dri2.c

Line 1404 from:
        AddCallback(&ClientStateCallback, radeon_dri2_client_state_changed, 0);

Replaced by:
        if (pScrn->scrnIndex == 0) {
        AddCallback(&ClientStateCallback, radeon_dri2_client_state_changed, 0);
        }

The callback is called only once, even if multiple screens! And the error is
gone!
Please, can someone check if it need to be repeated in other parts as well?
If correct, can someone commit it?

Thank you very much! :)
Weber Kai

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--- Comment #28 from Weber K. <weberkai@yahoo.com.br> ---
Sorry fellows... I my proposal was only a workaround...
Maybe if you have 2 cards, and only the second is radeon, then the callback
will never be scheduled... :(
The solution needs to be adjusted a little more... Ill think about it...
Ill report if I find something new...
Thanks!

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--- Comment #29 from Michel Dänzer <michel@daenzer.net> ---
Created attachment 86051
  --> https://bugs.freedesktop.org/attachment.cgi?id=86051&action=edit
DRI2: Install client callback only once

Does this patch fix the problem?

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--- Comment #30 from Jose P. <lbdkmjdf@sharklasers.com> ---
(In reply to comment #29)
> Created attachment 86051 [details] [review]
> DRI2: Install client callback only once
> 
> Does this patch fix the problem?

This, plus the patch in comment 6, fixed it for me (Lubuntu saucy, kernel
3.12-rc1 amd64, xserver-xorg-video-radeon 1:7.2.0-0ubuntu6 ).
Thanks people, thank you very much!

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--- Comment #31 from Michel Dänzer <michel@daenzer.net> ---
(In reply to comment #30)
> This, plus the patch in comment 6, fixed it for me [...]

Thanks, but please try without that other patch. If it's still necessary,
something is still wrong.

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--- Comment #32 from Michel Dänzer <michel@daenzer.net> ---
Actually, just let us know if you still get any 'Attempted to destroy
previously destroyed buffer.' messages.

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--- Comment #33 from Jose P. <lbdkmjdf@sharklasers.com> ---
(In reply to comment #32)
> Actually, just let us know if you still get any 'Attempted to destroy
> previously destroyed buffer.' messages.
None at all.
I only get   'XIO:  fatal IO error 11 (Resource temporarily unavailable) on X
server ":0" after 6030 requests (6030 known processed) with 0 events
remaining.' in the console when closing glxgears (alt+f4) (which AFAIK is
normal, but didn't happen before).

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--- Comment #34 from Michel Dänzer <michel@daenzer.net> ---
(In reply to comment #33)
> (which AFAIK is normal, but didn't happen before).

Yes, that's normal and not related to this problem.

Note that the 'Attempted to destroy previously destroyed buffer.' messages
would appear in the Xorg / LightDM log files, not in the terminal where you run
the application.

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--- Comment #35 from Jose P. <lbdkmjdf@sharklasers.com> ---
(In reply to comment #34)
> (In reply to comment #33)
> > (which AFAIK is normal, but didn't happen before).
> 
> Yes, that's normal and not related to this problem.
> 
> Note that the 'Attempted to destroy previously destroyed buffer.' messages
> would appear in the Xorg / LightDM log files, not in the terminal where you
> run the application.

Yes. Sorry if I was not clear, I grep'd through Xorg.*.log, and was not there.
Anyway, please allow someone else to confirm that the patch works.

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Michel Dänzer <michel@daenzer.net> changed:

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

--- Comment #36 from Michel Dänzer <michel@daenzer.net> ---
commit c45e728107269c6f51599dad4f6a02ccfef703f1
Author: Michel Dänzer <michel.daenzer@amd.com>
Date:   Wed Sep 18 10:57:52 2013 +0200

    DRI2: Install client callback only once

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--- Comment #37 from Weber K. <weberkai@yahoo.com.br> ---
Hi!

Here RESOLVED.

Sorry for late response, I needed to upgrade my whole system to current for
testing.

I have the same "new" glxgears messages if closed clicking in the close button.
If press esc or with pkill then no error in the console. I think this is caused
by the way glxgears implement main loop.

Thank you very much!

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