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Thread: Super weird damaged system

  1. #1

    Unhappy Super weird damaged system

    Since a few days, my Tumbleweed has been broken in a way that I can't understand.... It boots up to Plasma, and all applications set up to run at startup are running well at the beginning. Then... it's broken. Applications all refuse to start (though I can manage to make them start if I wait, try other stuff and come back to it?!). Running them in Konsole made them throw errors as if X11 was not running or broken (see below), though it's up and running (since I'm, well, using Plasma to run them). Finally, and related to that (?), everything works fine under Wayland...

    I tried to reinstall all installed packages containing "xcb", "xorg", "x11", "Qt5", "KF5" and "plasma", to fix any possible corrupted files, but to no avail...

    If someone can help me make sense of this nonsense? Any help and pointers would be much appreciated!

    Some errors. Trying to run dolphin:
    Code:
    Maximum number of clients reachedMaximum number of clients reachedqt.qpa.screen: QXcbConnection: Could not connect to display :0.0
    Could not connect to any X display.
    qt.qpa.plugin: Could not load the Qt platform plugin "xcb" in "" even though it was found.
    Failed to create wl_display (No such file or directory)
    qt.qpa.plugin: Could not load the Qt platform plugin "wayland" in "" even though it was found.
    This application failed to start because no Qt platform plugin could be initialized. Reinstalling the application may fix this problem.
    
    Available platform plugins are: wayland-org.kde.kwin.qpa, eglfs, linuxfb, minimal, minimalegl, offscreen, vnc, wayland-egl, wayland, wayland-xcomposite-egl, wayland-xcomposite-glx, xcb.
    Trying to run Firefox:
    Code:
    Maximum number of clients reachedMaximum number of clients reachedUnable to init server: Could not connect: Connexion refusée
    Error: cannot open display: :0.0
    Trying to run Chromium:
    Code:
    Maximum number of clients reachedMaximum number of clients reached
    (chromium:9100): Gtk-WARNING **: 21:05:39.209: cannot open display: :0.0

  2. #2
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    Default Re: Super weird damaged system

    I have not run into that "maximum number of clients" message. But maybe check what processes are running. Perhaps you have a wild process that is forking and filling up the process table.

    Code:
    ps -fu $USER
    should list your processes.

    Or maybe
    Code:
    ps -fu $USER | wc -l
    which should give a count of how many processes. I'm currently seeing 123 processes with Leap 15.0
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  3. #3
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    Default Re: Super weird damaged system

    Your output shows you seem to run Plasma with Wayland instead of the Xorg. That combo doesn't work well ( yet ), specially not with NVIDIA graphics hardware.
    Another thing that comes to mind ( like always ) is how TW was upgraded. If not through 'zypper dup' then run that first, it's the only supported way for TW.
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  4. #4

    Default Re: Super weird damaged system

    @nrickert: I had 207 processes running, among which a large number of touchegg (which I use for gestures on my touchscreen) processes. Killing it and unchecking autostart seems to fix my issue, but only for KDE apps. Firefox for example still refuses to run with the following error:

    Code:
    ExceptionHandler::GenerateDump cloned child 6373
    ExceptionHandler::SendContinueSignalToChild sent continue signal to child
    ExceptionHandler::WaitForContinueSignal waiting for continue signal...
    2018-10-18 07:49:37: minidump.cc:1425: ERROR: MinidumpThread has a memory region problem, 0x7fffa59f8fe0+0x0, RVA 0x0x5a8
    2018-10-18 07:49:37: minidump_processor.cc:249: ERROR: No memory region for /home/flyos/.mozilla/firefox/e3zxcz18.default/minidumps/4ef7089f-e68a-2699-6c27-684fc17ec254.dmp:0/26 id 0x18a2
    2018-10-18 07:49:37: stackwalker_amd64.cc:286: ERROR: Can't get caller frame without memory or stac
    Am I having a RAM failure?

    @Knurpht: I am positive this is happening on a X11 session ("Plasma" in SDDM) and not on a Wayland session ("Plasma (Wayland)") session which I'm writing this from and works OK.

    EDIT: Also, I always update TW with zypper dup --no-allow-vendor-change

  5. #5
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    Default Re: Super weird damaged system

    Quote Originally Posted by flyos View Post
    Code:
    ExceptionHandler::GenerateDump cloned child 6373
    ExceptionHandler::SendContinueSignalToChild sent continue signal to child
    ExceptionHandler::WaitForContinueSignal waiting for continue signal...
    2018-10-18 07:49:37: minidump.cc:1425: ERROR: MinidumpThread has a memory region problem, 0x7fffa59f8fe0+0x0, RVA 0x0x5a8
    2018-10-18 07:49:37: minidump_processor.cc:249: ERROR: No memory region for /home/flyos/.mozilla/firefox/e3zxcz18.default/minidumps/4ef7089f-e68a-2699-6c27-684fc17ec254.dmp:0/26 id 0x18a2
    2018-10-18 07:49:37: stackwalker_amd64.cc:286: ERROR: Can't get caller frame without memory or stac
    Am I having a RAM failure?
    Could be. When I see any kind of memory errors I try four things: 1-different DE (e.g. IceWM); 2-different kernel; 3-different distro; 4-memtest86 (not memtest86+). If you can run Firefox in an IceWM session, likely it's not a hardware problem. TW did just get a new kernel on the mirrors in recent hours.

    EDIT: Also, I always update TW with zypper dup --no-allow-vendor-change
    No-allow-vendor-change has been the TW default since I'm sure over a year ago by now.
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  6. #6
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    Default Re: Super weird damaged system

    Quote Originally Posted by flyos View Post
    @nrickert: I had 207 processes running, among which a large number of touchegg (which I use for gestures on my touchscreen) processes. Killing it and unchecking autostart seems to fix my issue, but only for KDE apps.
    What's the output of:
    Code:
    free
    Maybe you are running low on memory.
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  7. #7
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    Default Re: Super weird damaged system

    Please also show output of
    Code:
    zypper lr -d
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  8. #8
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    Default Re: Super weird damaged system

    Found this: https://forum.qt.io/topic/93247/qt-q...it-was-found/6
    The user reports that reinstalling libxcb solved the issue.
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  9. #9

    Default Re: Super weird damaged system

    Sorry for the late reply...

    @mrmazda: Firefox doesn't work on IceWM, but does work fine on Plasma Wayland (actually, everything work fine on Plasma Wayland, besides Wayland-specific bugs). Other stuff will require more time to test unfortunately...

    @nrickert: Here's the result of "free -mh", I don't think I ever lacked memory on this laptop (nor should I):
    Code:
                  total        used        free      shared  buff/cache   available
    Mem:          7,7Gi       1,6Gi       2,0Gi       151Mi       4,1Gi       5,7Gi
    Swap:         4,0Gi          0B       4,0Gi
    @Knurpht: Here's the output of zypper lr. Note that although KDE:Extra has a low priority, very few things come from here. "home:illuusio" is to get libinput-gestures. Sorry for the French...
    Code:
    Priorités de dépôt en vigueur : (Consultez 'zypper lr -P' pour plus de détails)
          50 (priorité relevée)    :  1 dépôt 
          89 (priorité relevée)    :  1 dépôt 
          90 (priorité relevée)    :  1 dépôt 
          91 (priorité relevée)    :  1 dépôt 
          95 (priorité relevée)    :  1 dépôt 
          99 (priorité par défaut) : 10 dépôts
    
    #  | Alias                               | Nom                                            | Activé | Vérification GPG | Rafraichir | Priorité | Type   | URI                                                                                                               | Service
    ---+-------------------------------------+------------------------------------------------+--------+------------------+------------+----------+--------+-------------------------------------------------------------------------------------------------------------------+--------
     1 | CRAN                                | CRAN                                           | Oui    | (r ) Oui         | Oui        |   90     | rpm-md | http://download.opensuse.org/repositories/devel:/languages:/R:/released/openSUSE_Tumbleweed/                      |        
     2 | KDE:Extra                           | KDE:Extra                                      | Oui    | (r ) Oui         | Non        |   95     | rpm-md | https://download.opensuse.org/repositories/KDE:/Extra/openSUSE_Tumbleweed/                                        |        
     3 | download.opensuse.org-non-oss       | Dépôt principal (NON-OSS)                      | Oui    | (r ) Oui         | Oui        |   99     | rpm-md | http://download.opensuse.org/tumbleweed/repo/non-oss/                                                             |        
     4 | download.opensuse.org-oss           | Dépôt principal (OSS)                          | Oui    | (r ) Oui         | Oui        |   99     | rpm-md | http://download.opensuse.org/tumbleweed/repo/oss/                                                                 |        
     5 | download.opensuse.org-tumbleweed    | Dépôt principal de mise à jour                 | Oui    | (r ) Oui         | Oui        |   99     | rpm-md | http://download.opensuse.org/update/tumbleweed/                                                                   |        
     6 | google-talkplugin                   | google-talkplugin                              | Oui    | (r ) Oui         | Oui        |   99     | rpm-md | http://dl.google.com/linux/talkplugin/rpm/stable/x86_64                                                           |        
     7 | home_leinir_peruse                  | Peruse Comic Book Reader (openSUSE_Tumbleweed) | Oui    | (r ) Oui         | Non        |   99     | rpm-md | http://download.opensuse.org/repositories/home:/leinir:/peruse/openSUSE_Tumbleweed/                               |        
     8 | http-download.opensuse.org-0a2e2bd9 | home:flyos:dpluzz                              | Oui    | (r ) Oui         | Oui        |   99     | rpm-md | http://download.opensuse.org/repositories/home:/flyos:/dpluzz/openSUSE_Tumbleweed/                                |        
     9 | http-download.opensuse.org-240a34fd | home:flyos:R-packages                          | Oui    | (r ) Oui         | Oui        |   89     | rpm-md | http://download.opensuse.org/repositories/home:/flyos:/R-packages/devel_languages_R_released_openSUSE_Tumbleweed/ |        
    10 | http-download.opensuse.org-347c1905 | home:flyos:Zotero                              | Oui    | (r ) Oui         | Oui        |   99     | rpm-md | http://download.opensuse.org/repositories/home:/flyos:/Zotero/openSUSE_Tumbleweed/                                |        
    11 | http-download.opensuse.org-8e2993b5 | Emulators                                      | Oui    | (r ) Oui         | Oui        |   99     | rpm-md | http://download.opensuse.org/repositories/Emulators/openSUSE_Tumbleweed/                                          |        
    12 | http-download.opensuse.org-bbc7e816 | home:illuusio                                  | Oui    | (r ) Oui         | Oui        |   99     | rpm-md | http://download.opensuse.org/repositories/home:/illuusio/openSUSE_Tumbleweed/                                     |        
    13 | http-download.opensuse.org-ee53e523 | science                                        | Oui    | (r ) Oui         | Oui        |   91     | rpm-md | http://download.opensuse.org/repositories/science/openSUSE_Tumbleweed/                                            |        
    14 | packman                             | packman                                        | Oui    | (r ) Oui         | Oui        |   50     | rpm-md | http://ftp.gwdg.de/pub/linux/misc/packman/suse/openSUSE_Tumbleweed/                                               |        
    15 | repo-debug                          | openSUSE-Tumbleweed-Debug                      | Non    | ----             | ----       |   99     | NONE   | http://download.opensuse.org/debug/tumbleweed/repo/oss/                                                           |        
    16 | repo-source                         | openSUSE-Tumbleweed-Source                     | Non    | ----             | ----       |   99     | NONE   | http://download.opensuse.org/source/tumbleweed/repo/oss/                                                          |        
    17 | skype-stable                        | skype (stable)                                 | Oui    | (r ) Oui         | Oui        |   99     | rpm-md | https://repo.skype.com/rpm/stable/

  10. #10
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    Default Re: Super weird damaged system

    Boy,
    It's been a long time since I've seen this error,

    IIRC then, and possibly now you can either try to track down what app isn't closing down properly or simply increasing (ie doubling to start) MAXCLIENTS in your xorg.conf.

    With a quick Google search, I see one result where an alternate file "/usr/include/xorg/misc.h" was suggested for this setting.

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