Nouveau - Oct 2013 - [Bug 70510] New: Xorg crash on KDE init

https://bugs.freedesktop.org/show_bug.cgi?id=70510

          Priority: medium
            Bug ID: 70510
          Assignee: nouveau at lists.freedesktop.org
           Summary: Xorg crash on KDE init
        QA Contact: xorg-team at lists.x.org
          Severity: normal
    Classification: Unclassified
                OS: All
          Reporter: estellnb at elstel.org
          Hardware: Other
            Status: NEW
           Version: 7.6 (2010.12)
         Component: Driver/nouveau
           Product: xorg

Created attachment 87694
  --> https://bugs.freedesktop.org/attachment.cgi?id=87694&action=edit
Xorg.0.log

During KDE init my computer crashes regularely with nouveau and
xorg-x11-server-7.6_1.14.3-2.1.3.

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--- Comment #1 from Elmar Stellnberger <estellnb at elstel.org> ---
Created attachment 87695
  --> https://bugs.freedesktop.org/attachment.cgi?id=87695&action=edit
/var/log/messages

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--- Comment #2 from Emil Velikov <emil.l.velikov at gmail.com> ---
Elmar

Please try to provide more comprehensive picture of the issue rather than just
"crashes regularely"
* output of dmesg as the issue happens. if X crashes you should be able to get
back to VT and retrieve it :) Possibly even over ssh (if you prefer using gui)
* is this a regression ?
* "crashes regularely" is quite vague. Some steps to reproduce/trigger
would be
great
* to eliminate 3d/opengl interaction {re,}move the nouveau_vieux_dri.so


It would be great if you can spend a couple of minutes going through the
bugs[1], faq[2] and trouble shooting[3] sections in the wiki

Cheers

[1] http://nouveau.freedesktop.org/wiki/Bugs/
[2] http://nouveau.freedesktop.org/wiki/FAQ/
[3] http://nouveau.freedesktop.org/wiki/TroubleShooting/

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--- Comment #3 from Elmar Stellnberger <estellnb at elstel.org> ---
Well the crash has to do with enabling an external screen via the xrandr
extension. If I boot from xinit via startkde into KDE then it does not crash
unless I enable an external monitor (as done at me by default). Since enabling
an external monitor is not supported until long (Bug 47556) this is not a
regression; "crashes regularely" should mean "always; in any
case.". Xorg.0.log
and dmesg will follow; can and will also re-test without nouveau_vieux_dri.so.

kernel-3.11.3-1.1-default
libdmr2-2.4.46-3.2.2
libdrm-nouveau2-2.4.46-3.2.2
Mesa-9.2.1-61.4.1
Mesa-libGLESv2-2-9.2.1-61.4.1
DirectFB-Mesa-1.6.3-4.1.3

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--- Comment #4 from Elmar Stellnberger <estellnb at elstel.org> ---
Created attachment 87737
  --> https://bugs.freedesktop.org/attachment.cgi?id=87737&action=edit
dmesg (log_buf_len=1M)

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--- Comment #5 from Elmar Stellnberger <estellnb at elstel.org> ---
Created attachment 87738
  --> https://bugs.freedesktop.org/attachment.cgi?id=87738&action=edit
Xorg.0.log for dmesg

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--- Comment #6 from Elmar Stellnberger <estellnb at elstel.org> ---
Well, without nouveau_vieux_dri.so it even crashes immediately on startkde
rather than at the end of startkde as usual (can`t do without that file).

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--- Comment #7 from Ilia Mirkin <imirkin at alum.mit.edu> ---
Can you get symbols + disassembly for that backtrace? Specifically the
nouveau_drv bit of it. If you're unsure how to do that, let us know, and
what
distribution you're using, and we'll attempt to come up with some
instructions.

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--- Comment #8 from Elmar Stellnberger <estellnb at elstel.org> ---
damn openSUSE! It always installs outdated -debuginfo packages
(https://bugzilla.novell.com/show_bug.cgi?id=845626). Can`t you recommend me
another distribution with up-to-date factory and working debuginfo?

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--- Comment #9 from Johannes Obermayr <johannesobermayr at gmx.de> ---
(In reply to comment #8)
> damn openSUSE! It always installs outdated -debuginfo packages
> (https://bugzilla.novell.com/show_bug.cgi?id=845626). Can`t you recommend
me
> another distribution with up-to-date factory and working debuginfo?
$ osc getbinaries -d $DIR openSUSE:13.1 $PACKAGE standard $ARCHITECTURE $FILE
$ cd $DIR
$ sudo zypper in $(ls)

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--- Comment #10 from Elmar Stellnberger <estellnb at elstel.org> ---
 Unfortunately that did not work as expected:
> osc getbinaries openSUSE:13.1 $PACKAGE standard $ARCHITECTURE $FILE
gives me the error message: Need either 1, 2 or 4 arguments (seems not
implemented)
> osc getbinaries openSUSE:13.1 $PACKAGE standard $ARCHITECTURE
however re-downloads the whole package which can be installed
via
> rpm -Uvh --force $PACKAGE
Nonetheless this does not give me debuginfo yet.
If I do an nm -s on the specified files it returns 'no symbols'; an rpm
-ql
shows that these packages do also not contain external debuginfo.

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--- Comment #11 from Johannes Obermayr <johannesobermayr at gmx.de> ---
(In reply to comment #10)
>  Unfortunately that did not work as expected:
[...]
> Nonetheless this does not give me debuginfo yet.
Maybe you should provide valid values for variables:

osc getbinaries --debug -d debuginfo openSUSE:13.1 Mesa standard i586
Mesa-debuginfo-9.2.1-61.4.1.i586.rpm
osc getbinaries --debug -d debuginfo openSUSE:13.1
xorg-x11-driver-video-nouveau standard i586
xorg-x11-driver-video-nouveau-debuginfo-1.0.9-3.1.2.i586.rpm
osc getbinaries --debug -d debuginfo openSUSE:13.1 xorg-x11-server standard
i586 xorg-x11-server-debuginfo-7.6_1.14.3-2.1.3.i586.rpm
osc getbinaries --debug -d debuginfo openSUSE:13.1 libdrm standard i586
libdrm2-debuginfo-2.4.46-3.2.2.i586.rpm
osc getbinaries --debug -d debuginfo openSUSE:13.1 libdrm standard i586
libdrm_nouveau2-debuginfo-2.4.46-3.2.2.i586.rpm
osc getbinaries --debug -d debuginfo openSUSE:13.1 libdrm standard i586
libkms1-debuginfo-2.4.46-3.2.2.i586.rpm

cd debuginfo

sudo zypper in $(ls)

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--- Comment #12 from Elmar Stellnberger <estellnb at elstel.org> ---
Created attachment 87791
  --> https://bugs.freedesktop.org/attachment.cgi?id=87791&action=edit
installed (debug) packages

debuginfo is installed now though the backtrace seems still little meaningful

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--- Comment #13 from Elmar Stellnberger <estellnb at elstel.org> ---
Created attachment 87792
  --> https://bugs.freedesktop.org/attachment.cgi?id=87792&action=edit
Xorg.0.log

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--- Comment #14 from Elmar Stellnberger <estellnb at elstel.org> ---
Created attachment 87793
  --> https://bugs.freedesktop.org/attachment.cgi?id=87793&action=edit
dmesg (log_buf_len=1M)

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--- Comment #15 from Johannes Obermayr <johannesobermayr at gmx.de> ---
Please try this script to get a gdb backtrace:
http://www.x.org/wiki/Development/Documentation/ServerDebugging/#index6h2

Attach then only the file "Log written to: ..."

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--- Comment #16 from Elmar Stellnberger <estellnb at elstel.org> ---
Created attachment 87830
  --> https://bugs.freedesktop.org/attachment.cgi?id=87830&action=edit
gdb output of running Xorg (kernel 3.12.0-rc5-1-default)

Now that seems somehow useful though gdb still recommended more debuginfo.

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--- Comment #17 from Elmar Stellnberger <estellnb at elstel.org> ---
did not succeed to install any of these additional debuginfos anyway except
glibc, libstc++ and libudev which won`t help much.

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--- Comment #18 from Elmar Stellnberger <estellnb at elstel.org> ---
To me it looks like a memory allocation issue as re-testing with a smaller
external screen with low resolution did not yield any crash.

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Hilmar Preu?e <hille42 at web.de> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |hille42 at web.de

--- Comment #19 from Hilmar Preu?e <hille42 at web.de> ---
I /think/ I look @the same problem, during a different operation. I try to
display an image larger than the screen using "display" (from
imagemagick). The
gdb backtrace from the core dump looks very similar just before it crashes:

#12 nouveau_exa_upload_to_screen (pdpix=0xb86cb578, x=0, y=0, w=4000, h=16, 
    src=0xb87b5268 "", src_pitch=16000) at ../../src/nouveau_exa.c:389
        pScrn = <optimized out>
        pNv = 0xb84516c0
        dst_pitch = 16000
        tmp_pitch = 16000
        cpp = 4
        i = <optimized out>
        bo = 0xb87da000
        dst = <optimized out>
        ret = 256000
        __func__ = "nouveau_exa_upload_to_screen"

(full bt will be uploaded). The display program does not scale down the image
to screen resolution but displays the picture @original resolution and offers a
thumbnail to select the part of the image to display.

I initially noticed this problem on debian stable (nouveau 1.0.1), I upgraded
to nouveau 1.0.10, the bt now looks different, but the crash still happens.

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--- Comment #20 from Hilmar Preu?e <hille42 at web.de> ---
Created attachment 94429
  --> https://bugs.freedesktop.org/attachment.cgi?id=94429&action=edit
Backtrace for Comment #19

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Elmar Stellnberger <estellnb at elstel.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|Xorg crash on KDE init      |nouveau fails to handle/set
                   |                            |resolutions over certain
                   |                            |size: Xorg crash on KDE
                   |                            |init

--- Comment #21 from Elmar Stellnberger <estellnb at elstel.org> ---
Will re-test this when you would give me a request to do so.

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Elmar Stellnberger <estellnb at elstel.org> changed:

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

--- Comment #22 from Elmar Stellnberger <estellnb at elstel.org> ---
Resolved with x11-server-xorg-1.18.4-1.mga6(sta1) / 4.7.2.-desktop-1. Nouveau
now succeeds in xinerama-ing two screens with 1024x768 and another with more
than FullHD on my NV17M (GeForce4 420 Go).

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