Bug 90667

Created attachment 116058 [details]
Xorg.0.log - the xorg logfile

Created attachment 116059 [details]
.xsession-errors

Please help me soon, I will try also patches for you...

Thanks very much.

As I mentioned allready, the bug comes from different applications, because I work most with emacs, so I will give you the emacs core dump too, maybe you can help me now... :(

Created attachment 116125 [details]
emacs core dump

But I think emacs core dumps just because of the xorg coredump which comes first.

Created attachment 116170 [details]
Xorg log

Created attachment 116171 [details]
gdb backtrace

I have the same problem. It seems to mostly happen when I resize frames in certain programs. 

I can more or less reproduce it by resizing the frames in 'git gui' but it also occurs in LibreOffice and Emacs.

I'm running on an Intel i5-2500k and use a Radeon R9 290 graphics card with xf86-video-radeon.

I added my own log file and backtraces.

(In reply to André from comment #8)
> I can more or less reproduce it by resizing the frames in 'git gui' but it
> also occurs in LibreOffice and Emacs.

Which window manager(s) does it happen with for you?

Do you guys use any special window manager configuration, e.g. non-opaque window resizes?

I also had the Idea about window resizing, until today it also crashed while using mu4e for my mails, just switching from one mail to another.  That worked for 20 emails, but now it crashed with the same Xorg backtrace.

I use awesome windowmanager, and will add my rc.lua for you.  I don't think there are special configurations.

Here is my xorg config:

------  begin .xinitrc ------
#!/bin/bash

if [ -d /etc/X11/xinit/xinitrc.d ] ; then
    for f in /etc/X11/xinit/xinitrc.d/?* ; do
        [ -x "$f" ] && . "$f"
    done
    unset f
fi

[[ -f ~/.Xresources ]] && xrdb -merge ~/.Xresources

exec awesome
------ end .xinitrc -----

------ begin .Xresources ------
! This is a comment placed above some Xft settings
!Xft.dpi:       115      ! this is an inline comment
Xft.dpi:	122
Xft.antialias:  true
Xft.hinting:    true
Xft.hintstyle:  hintslight
------ end .Xresources ------

having 2 files in my /etc/X11/xinit/xinitrc.d:

------ begin 30-dbus.sh -----
#!/bin/bash

# launches a session dbus instance
if [ -z "${DBUS_SESSION_BUS_ADDRESS-}" ] && type dbus-launch >/dev/null; then
  eval $(dbus-launch --sh-syntax --exit-with-session)
fi
------ end 30-dbus.sh -------
------ begin 40-libcanberra-gtk-module.sh ------
#!/bin/bash

case "${DESKTOP_SESSION-}" in
  gnome) # Done by gnome-settings-daemon
  ;;
  *)
    # Extra check in case DESKTOP_SESSION is not set correctly
    if [[ -z ${GNOME_DESKTOP_SESSION_ID-} ]]; then
      if [[ -z ${GTK_MODULES-} ]]; then
        GTK_MODULES="canberra-gtk-module"
      else
        GTK_MODULES="$GTK_MODULES:canberra-gtk-module"
      fi
      export GTK_MODULES
    fi
  ;;
esac
--------- end 40-libcaberra-gtk-module.sh ------

ok and then i have no xorg.conf in my /etc/X11 directory but a /etc/X11/xorg.conf.d dirctory, having one file:
------ begin 20-tastatur.conf -----
# Deutsches Layout
Section "InputClass"
	Identifier "keyboard"
	MatchIsKeyboard "yes"
	Option "XkbLayout" "de,se"
	Option "XkbVariant" "nodeadkeys"
	Option "XkbOptions" "grp:alt_space_toggle"
EndSection
------- end 20-tastatur.conf ----

I will send my rc.lua via attachment.

Any hints about that configuration?

Thanks,
Martin

Created attachment 116238 [details]
rc.lua for my awesome windowmanager

could you tell me where you would start to fix that problem?

I know some C, but I don't know where to start with that problem.  Just tell me your thoughts what you as a developer would try, and I try to test that.

thanks.

I've been unable to reproduce the crash with xserver Git master, although I've confirmed I'm hitting the same code path with git gui.

After reproducing the crash with gdb attached, please run the following commands at the gdb prompt and post their output:

frame 2
p *(PixmapPtr)dst
p *(glamor_pixmap_private*)dixLookupPrivate(&((PixmapPtr)dst)->devPrivates, &glamor_pixmap_private_key)

Hi Michael,

I get:

(gdb) frame 2
#2  0x0000000000598d2e in OsAbort () at utils.c:1342
1342    utils.c: File or direcotry not found.
(gdb) p *(PixmapPtr)dst
No symbol "dst" in current context.
(gdb) p *(glamor_pixmap_private*)dixLookupPrivate(&((PixmapPtr)dst)->devPrivates, &glamor_pixmap_private_key)
No symbol "dst" in current context.

so I think I have to install or do something before doing that?

Thanks,
Martin

Created attachment 116628 [details]
GDB output emacs

Created attachment 116629 [details]
GDB output git gui

Created attachment 116630 [details]
GDB output LibreOffice

I added three stacktraces from different programs with the output of the commands you have given.

LibreOffice crashes when I add a frame (Insert -> Frame) and then resize it with the handles. Sometimes it takes two or three resize operations before the crash occurs.

git gui crashes when I move the splitter seperating the different parts of the window. It also take several move operations before the crash. It seems that in this case the dst argument for fbBltOne is not 0x0.

Emacs crashes when I resize the window. It occurs less often and I have to resize the window 10 times or so. It has a different stacktrace than the others so I tried to get the right variable for your commands.

If you need any other output or things to try out just tell me.

I'm running Arch Linx with xfce4.

xfwm4 (4.12.3-1)
xorg-server (1.17.2-1)
xf86-video-ati (1:7.5.0-2)

As mentioned before I have a Radeon R9 290 graphics card with 2 monitors on DVI and one on HDMI. But the crashes occur even if I connect only one monitor.

(In reply to André from comment #18)
> I added three stacktraces from different programs with the output of the
> commands you have given.

Thanks. Can you also print *glamor_priv?

So far, the only way I could see this happen is if glMapBuffer() fails.

Or, maybe there's memory corruption going on. Any chance one of you could run Xorg in valgrind, try reproducing a crash and see if valgrind finds anything wrong?

Created attachment 116650 [details]
Valgrind output from Xorg

Created attachment 116651 [details]
GDB output LibreOffice

Created attachment 116652 [details]
GDB output git gui

I updated the gdb output to include glamor_priv.

I also tried to run valgrind. I've run a bare Xorg without my usual xfce4 environment. I disabled the leak checks because after the crash I got around 40MB of leak output.

Do you have any clue what component could cause the corruption, then I could try to change it.

(In reply to m.kaffanke from comment #10)
> I use awesome windowmanager, and will add my rc.lua for you.  I don't think
> there are special configurations.

What graphics card and driver are you using?

Created attachment 116666 [details] [review]
Assert that glMapBuffer returns non-NULL

Thanks for the valgrind output, but unfortunately, it doesn't shed any more light on this mystery for me.

Can you try applying this xserver patch and reproducing the problem with gdb attached to Xorg? Does it fail the added assertion before it crashes?

BTW, has one of you tried if this also happens with xserver 1.16.y?

Created attachment 117133 [details] [review]
X server patch to make current in some fallback paths

this X server patch should fix this.

*** Bug 90941 has been marked as a duplicate of this bug. ***

I'm now running xorg-server-1.17.2-4 on Arch (which includes the patch) and didn't had a crash with the programs I tested.

commit db5337afb248edf81087cf8d74006fc496d70589
Author: Dave Airlie <airlied@redhat.com>
Date:   Wed Jul 15 17:56:11 2015 +1000

    glamor: make current in prepare paths

*** Bug 91923 has been marked as a duplicate of this bug. ***

*** Bug 90299 has been marked as a duplicate of this bug. ***