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ronw

Member

Registered: 2013-07-02

Posts: 50

System freezing; ksplashqml dumped core

Edit: Downgrading qt5-base to 5.5.1-7 'solved' this. See post #8.

My entire system decided to start freezing today. Not just the Plasma desktop. Can't get to a tty or do anything but power off.

I'm seeing these lines that may be relevant in the journal:

Jan 12 16:00:04 gazp6 systemd[599]: Started D-Bus User Message Bus.
Jan 12 16:00:05 gazp6 kernel: nouveau 0000:01:00.0: gr: DATA_ERROR 0000000c [INVALID_BITFIELD] ch 5 [005fae8000 k
Jan 12 16:00:05 gazp6 kernel: nouveau 0000:01:00.0: gr: DATA_ERROR 0000000c [INVALID_BITFIELD] ch 5 [005fae8000 k
Jan 12 16:00:05 gazp6 kernel: QSGRenderThread[696]: segfault at 8 ip 00007ff055b1747c sp 00007ff045e5d560 error 4
Jan 12 16:00:05 gazp6 kernel: nouveau 0000:01:00.0: fifo: PBDMA0: 00040000 [] ch 5 [005fae8000 ksplashqml[672]] s
Jan 12 16:00:05 gazp6 kernel: nouveau 0000:01:00.0: fifo: PBDMA0: 00040000 [] ch 5 [005fae8000 ksplashqml[672]] s
Jan 12 16:00:05 gazp6 kdeinit5[697]: Qt: Session management error: networkIdsList argument is NULL
Jan 12 16:00:05 gazp6 kdeinit5[697]: Connecting to deprecated signal QDBusConnectionInterface::serviceOwnerChange
Jan 12 16:00:05 gazp6 kdeinit5[703]: kf5.kservice.sycoca: Parse error in  "/home/ronw/.config/menus/applications-
Jan 12 16:00:05 gazp6 kdeinit5[703]: kf5.kservice.sycoca: The menu spec file contains a Layout or DefaultLayout t
Jan 12 16:00:05 gazp6 kdeinit5[703]: kf5.kservice.sycoca: The menu spec file contains a Layout or DefaultLayout t
Jan 12 16:00:06 gazp6 kdeinit5[700]: kf5.kded: found kded module "accounts" by prepending 'kded_' to the library 
Jan 12 16:00:17 gazp6 systemd-timesyncd[374]: Synchronized to time server [2600:3c00::2:b401]:123 (2.arch.pool.nt
Jan 12 16:00:20 gazp6 kernel: nouveau 0000:01:00.0: ksplashqml[672]: failed to idle channel 0xcccc0000 [ksplashqm
Jan 12 16:00:35 gazp6 kernel: nouveau 0000:01:00.0: ksplashqml[672]: failed to idle channel 0xcccc0000 [ksplashqm
Jan 12 16:00:35 gazp6 dbus[388]: [system] Activating via systemd: service name='org.freedesktop.UPower' unit='upo
Jan 12 16:00:35 gazp6 systemd[1]: Starting Daemon for power management...
Jan 12 16:00:35 gazp6 dbus[388]: [system] Successfully activated service 'org.freedesktop.UPower'
Jan 12 16:00:35 gazp6 systemd[1]: Started Daemon for power management.
Jan 12 16:00:35 gazp6 kdeinit5[700]: powerdevil: No outputs have backlight property
Jan 12 16:00:35 gazp6 dbus[388]: [system] Activating via systemd: service name='org.freedesktop.UDisks2' unit='ud
Jan 12 16:00:35 gazp6 systemd[1]: Starting Disk Manager...
Jan 12 16:00:35 gazp6 udisksd[732]: udisks daemon version 2.1.6 starting
Jan 12 16:00:35 gazp6 systemd-coredump[698]: Process 672 (ksplashqml) of user 1000 dumped core.
                                             
                                             Stack trace of thread 696:
                                             #0  0x00007ff055b1747c n/a (libdrm_nouveau.so.2)
                                             #1  0x00007ff055b17b39 n/a (libdrm_nouveau.so.2)
                                             #2  0x00007ff05624f54d n/a (nouveau_dri.so)
                                             #3  0x00007ff056149725 n/a (nouveau_dri.so)
                                             #4  0x00007ff056149808 n/a (nouveau_dri.so)
                                             #5  0x00007ff0560c0846 n/a (nouveau_dri.so)
                                             #6  0x00007ff055f08927 n/a (nouveau_dri.so)
                                             #7  0x00007ff055dc9af0 n/a (nouveau_dri.so)
                                             #8  0x00007ff055dc9e2f n/a (nouveau_dri.so)
                                             #9  0x00007ff06799899f _ZN16QSGBatchRenderer8Renderer5unmapEPNS_6Buf
                                             #10 0x00007ff06799ada9 _ZN16QSGBatchRenderer8Renderer11uploadBatchEP
                                             #11 0x00007ff0679a5df6 _ZN16QSGBatchRenderer8Renderer6renderEv (libQ
                                             #12 0x00007ff0679b1b2f _ZN11QSGRenderer11renderSceneERK11QSGBindable
                                             #13 0x00007ff0679b237b _ZN11QSGRenderer11renderSceneEj (libQt5Quick.
                                             #14 0x00007ff0679c286e _ZN16QSGRenderContext15renderNextFrameEP11QSG
                                             #15 0x00007ff067a0c83b _ZN19QQuickWindowPrivate16renderSceneGraphERK
                                             #16 0x00007ff0679e0a58 n/a (libQt5Quick.so.5)
                                             #17 0x00007ff0679e611c n/a (libQt5Quick.so.5)
                                             #18 0x00007ff066a6ab8e n/a (libQt5Core.so.5)
                                             #19 0x00007ff0650264a4 start_thread (libpthread.so.0)
                                             #20 0x00007ff06638813d __clone (libc.so.6)
<snipped here>

But the boot continues, I login, startx to start Plasma, open some applications, then at some point when I click on the application menu to start something else, everything locks up.

Journal lines at the time of the freeze. The reboot is after powering off and restarting:

Jan 12 16:02:40 gazp6 dbus-daemon[655]: Activating service name='org.kde.kwalletd'
Jan 12 16:02:40 gazp6 org.kde.kwalletd[655]: /usr/bin/kwalletd: error while loading shared libraries: libgpgme++-
Jan 12 16:02:40 gazp6 dbus-daemon[655]: Activated service 'org.kde.kwalletd' failed: Process org.kde.kwalletd exi
Jan 12 16:02:40 gazp6 dbus-daemon[655]: Activating service name='org.gnome.GConf'
Jan 12 16:02:40 gazp6 dbus-daemon[655]: Successfully activated service 'org.gnome.GConf'
Jan 12 16:02:40 gazp6 kwin_x11[786]: QMetaMethod::invoke: Unable to handle unregistered datatype 'KWin::EffectWin
Jan 12 16:03:57 gazp6 kwin_x11[786]: QMetaMethod::invoke: Unable to handle unregistered datatype 'KWin::EffectWin
Jan 12 16:04:00 gazp6 kwin_x11[786]: QXcbConnection: XCB error: 3 (BadWindow), sequence: 15880, resource id: 5452
Jan 12 16:04:00 gazp6 kwin_x11[786]: QXcbConnection: XCB error: 3 (BadWindow), sequence: 15884, resource id: 5452
Jan 12 16:04:01 gazp6 kwin_x11[786]: QMetaMethod::invoke: Unable to handle unregistered datatype 'KWin::EffectWin
Jan 12 16:04:22 gazp6 kwin_x11[786]: QMetaMethod::invoke: Unable to handle unregistered datatype 'KWin::EffectWin
Jan 12 16:04:22 gazp6 kernel: nouveau 0000:01:00.0: gr: DATA_ERROR 0000000c [INVALID_BITFIELD] ch 6 [005fa51000 p
Jan 12 16:04:22 gazp6 kernel: nouveau 0000:01:00.0: gr: DATA_ERROR 0000000c [INVALID_BITFIELD] ch 6 [005fa51000 p
Jan 12 16:04:22 gazp6 kernel: nouveau 0000:01:00.0: gr: DATA_ERROR 0000000d [BEGIN_END_ACTIVE] ch 6 [005fa51000 p
-- Reboot --
Jan 12 16:06:09 gazp6 systemd-journald[160]: Runtime journal (/run/log/journal/) is currently using 8.0M.
                                             Maximum allowed usage is set to 398.3M.
                                             Leaving at least 597.5M free (of currently available 3.8G of space).
                                             Enforced usage limit is thus 398.3M, of which 390.3M are still avail
<snipped the rest of the boot>

Nouveau driver. I'm posting this in an LXQt session, which has not frozen, so it seems to be something in plasma.

This started after I did an upgrade and logged out. These were the upgraded packages:

[2016-01-12 14:56] [PACMAN] starting full system upgrade
[2016-01-12 14:56] [ALPM] transaction started
[2016-01-12 14:56] [ALPM] upgraded gpgmepp (15.12.0-1 -> 15.12.1-1)
[2016-01-12 14:56] [ALPM] upgraded ark (15.12.0-2 -> 15.12.1-1)
[2016-01-12 14:56] [ALPM] upgraded baloo-widgets (15.12.0-1 -> 15.12.1-1)
[2016-01-12 14:56] [ALPM] upgraded kio-extras (15.12.0-1 -> 15.12.1-1)
[2016-01-12 14:56] [ALPM] upgraded dolphin (15.12.0-2 -> 15.12.1-1)
[2016-01-12 14:56] [ALPM] upgraded dragon (15.12.0-1 -> 15.12.1-1)
[2016-01-12 14:56] [ALPM] upgraded libkipi (15.12.0-1 -> 15.12.1-1)
[2016-01-12 14:56] [ALPM] upgraded libkdcraw (15.12.0-1 -> 15.12.1-1)
[2016-01-12 14:56] [ALPM] upgraded gwenview (15.12.0-1 -> 15.12.1-1)
[2016-01-12 14:56] [ALPM] upgraded signon-kwallet-extension (15.12.0-1 -> 15.12.1-1)
[2016-01-12 14:56] [ALPM] upgraded kaccounts-integration (15.12.0-1 -> 15.12.1-1)
[2016-01-12 14:56] [ALPM] upgraded kate (15.12.0-1 -> 15.12.1-1)
[2016-01-12 14:56] [ALPM] upgraded kdelibs (4.14.15-2 -> 4.14.16-1)
[2016-01-12 14:56] [ALPM] upgraded kdebase-runtime (15.12.0-3 -> 15.12.1-1)
[2016-01-12 14:56] [ALPM] upgraded kdebase-kdialog (15.12.0-1 -> 15.12.1-1)
[2016-01-12 14:56] [ALPM] upgraded kdebase-lib (15.12.0-1 -> 15.12.1-1)
[2016-01-12 14:56] [ALPM] upgraded kdegraphics-okular (15.12.0-1 -> 15.12.1-1)
[2016-01-12 14:56] [ALPM] upgraded kmix (15.12.0-1 -> 15.12.1-1)
[2016-01-12 14:56] [ALPM] upgraded konsole (15.12.0-1 -> 15.12.1-1)
[2016-01-12 14:56] [ALPM] upgraded libkdegames (15.12.0-1 -> 15.12.1-1)
[2016-01-12 14:56] [ALPM] upgraded kpatience (15.12.0-1 -> 15.12.1-1)
[2016-01-12 14:56] [ALPM] upgraded kwalletmanager (15.12.0-1 -> 15.12.1-1)
[2016-01-12 14:56] [ALPM] upgraded kwrite (15.12.0-1 -> 15.12.1-1)
[2016-01-12 14:56] [ALPM] upgraded print-manager (15.12.0-1 -> 15.12.1-1)
[2016-01-12 14:56] [ALPM] upgraded spectacle (15.12.0-1 -> 15.12.1-1)
[2016-01-12 14:56] [ALPM] upgraded wireshark-cli (2.0.1-1 -> 2.0.1-2)
[2016-01-12 14:56] [ALPM] upgraded wireshark-common (2.0.1-1 -> 2.0.1-2)
[2016-01-12 14:56] [ALPM] upgraded wireshark-qt (2.0.1-1 -> 2.0.1-2)
[2016-01-12 14:56] [ALPM] transaction completed

I downgraded all of these to the previous version, but the freezing continues.

Last edited by ronw (2016-01-13 15:38:44)

Daniel-HD

Member

Registered: 2015-11-27

Posts: 14

Re: System freezing; ksplashqml dumped core

I also am using nouveau, including the firmware blob AUR:nouveau-fw, and startx rootless into Plasma 5 and experienced just the same coredump following today's updates; not only, but first of ksplashqml. I still can use Plasma, though, while avoiding to click on anything like Application Starter or Systray Menu, using krunner for apps and dolphin for devices only, else plasmashell will crash, not managing to restart itself. I still can control mouse and use ALT+TAB+DEL for logout from the Xsession, to startx again. So it's not the kernel panicking – but one of the crashes I experienced today must've been serious, since my tower machine rebooted itself instantaneous.

edit: I think, these might be the updates in question.

[2016-01-12 10:34] [PACMAN] Running 'pacman -Syu'
[2016-01-12 10:34] [PACMAN] synchronizing package lists
[2016-01-12 10:34] [PACMAN] starting full system upgrade
[2016-01-12 10:34] [ALPM] transaction started
[2016-01-12 10:35] [ALPM] upgraded android-tools (5.1.1_r18-1 -> 5.1.1_r33-1)
[2016-01-12 10:35] [ALPM] upgraded cpupower (4.3-1 -> 4.4-1)
[2016-01-12 10:35] [ALPM] upgraded qt5-base (5.5.1-7 -> 5.5.1-8)
[2016-01-12 10:35] [ALPM] upgraded qt5-xmlpatterns (5.5.1-7 -> 5.5.1-8)
[2016-01-12 10:35] [ALPM] upgraded qt5-declarative (5.5.1-7 -> 5.5.1-8)
[2016-01-12 10:35] [ALPM] upgraded qt5-graphicaleffects (5.5.1-7 -> 5.5.1-8)
[2016-01-12 10:35] [ALPM] upgraded qt5-imageformats (5.5.1-7 -> 5.5.1-8)
[2016-01-12 10:35] [ALPM] upgraded qt5-location (5.5.1-7 -> 5.5.1-8)
[2016-01-12 10:35] [ALPM] upgraded qt5-multimedia (5.5.1-7 -> 5.5.1-8)
[2016-01-12 10:35] [ALPM] upgraded qt5-sensors (5.5.1-7 -> 5.5.1-8)
[2016-01-12 10:35] [ALPM] upgraded qt5-webchannel (5.5.1-7 -> 5.5.1-8)
[2016-01-12 10:35] [ALPM] upgraded qt5-webkit (5.5.1-7 -> 5.5.1-8)
[2016-01-12 10:35] [ALPM] upgraded qt5-script (5.5.1-7 -> 5.5.1-8)
[2016-01-12 10:35] [ALPM] upgraded qt5-quick1 (5.5.1-7 -> 5.5.1-8)
[2016-01-12 10:35] [ALPM] upgraded qt5-quickcontrols (5.5.1-7 -> 5.5.1-8)
[2016-01-12 10:35] [ALPM] upgraded qt5-serialport (5.5.1-7 -> 5.5.1-8)
[2016-01-12 10:35] [ALPM] upgraded qt5-svg (5.5.1-7 -> 5.5.1-8)
[2016-01-12 10:35] [ALPM] upgraded qt5-translations (5.5.1-7 -> 5.5.1-8)
[2016-01-12 10:35] [ALPM] upgraded qt5-tools (5.5.1-7 -> 5.5.1-8)
[2016-01-12 10:35] [ALPM] upgraded qt5-wayland (5.5.1-7 -> 5.5.1-8)
[2016-01-12 10:35] [ALPM] upgraded qt5-x11extras (5.5.1-7 -> 5.5.1-8)
[2016-01-12 10:35] [ALPM] upgraded xorg-server-common (1.18.0-3 -> 1.18.0-4)
[2016-01-12 10:35] [ALPM] upgraded xorg-server (1.18.0-3 -> 1.18.0-4)
[2016-01-12 10:35] [ALPM] upgraded xorg-server-xvfb (1.18.0-3 -> 1.18.0-4)
[2016-01-12 10:35] [ALPM] upgraded xorg-server-xwayland (1.18.0-3 -> 1.18.0-4)
[2016-01-12 10:35] [ALPM] transaction completed

Last edited by Daniel-HD (2016-01-12 23:36:15)

xend54

Member

Registered: 2015-03-28

Posts: 2

Re: System freezing; ksplashqml dumped core

edit: I think, these might be the updates in question.

[2016-01-12 10:34] [PACMAN] Running 'pacman -Syu'
[2016-01-12 10:34] [PACMAN] synchronizing package lists
[2016-01-12 10:34] [PACMAN] starting full system upgrade
[2016-01-12 10:34] [ALPM] transaction started
[2016-01-12 10:35] [ALPM] upgraded android-tools (5.1.1_r18-1 -> 5.1.1_r33-1)
[2016-01-12 10:35] [ALPM] upgraded cpupower (4.3-1 -> 4.4-1)
[2016-01-12 10:35] [ALPM] upgraded qt5-base (5.5.1-7 -> 5.5.1-8)
[2016-01-12 10:35] [ALPM] upgraded qt5-xmlpatterns (5.5.1-7 -> 5.5.1-8)
[2016-01-12 10:35] [ALPM] upgraded qt5-declarative (5.5.1-7 -> 5.5.1-8)
[2016-01-12 10:35] [ALPM] upgraded qt5-graphicaleffects (5.5.1-7 -> 5.5.1-8)
[2016-01-12 10:35] [ALPM] upgraded qt5-imageformats (5.5.1-7 -> 5.5.1-8)
[2016-01-12 10:35] [ALPM] upgraded qt5-location (5.5.1-7 -> 5.5.1-8)
[2016-01-12 10:35] [ALPM] upgraded qt5-multimedia (5.5.1-7 -> 5.5.1-8)
[2016-01-12 10:35] [ALPM] upgraded qt5-sensors (5.5.1-7 -> 5.5.1-8)
[2016-01-12 10:35] [ALPM] upgraded qt5-webchannel (5.5.1-7 -> 5.5.1-8)
[2016-01-12 10:35] [ALPM] upgraded qt5-webkit (5.5.1-7 -> 5.5.1-8)
[2016-01-12 10:35] [ALPM] upgraded qt5-script (5.5.1-7 -> 5.5.1-8)
[2016-01-12 10:35] [ALPM] upgraded qt5-quick1 (5.5.1-7 -> 5.5.1-8)
[2016-01-12 10:35] [ALPM] upgraded qt5-quickcontrols (5.5.1-7 -> 5.5.1-8)
[2016-01-12 10:35] [ALPM] upgraded qt5-serialport (5.5.1-7 -> 5.5.1-8)
[2016-01-12 10:35] [ALPM] upgraded qt5-svg (5.5.1-7 -> 5.5.1-8)
[2016-01-12 10:35] [ALPM] upgraded qt5-translations (5.5.1-7 -> 5.5.1-8)
[2016-01-12 10:35] [ALPM] upgraded qt5-tools (5.5.1-7 -> 5.5.1-8)
[2016-01-12 10:35] [ALPM] upgraded qt5-wayland (5.5.1-7 -> 5.5.1-8)
[2016-01-12 10:35] [ALPM] upgraded qt5-x11extras (5.5.1-7 -> 5.5.1-8)
[2016-01-12 10:35] [ALPM] upgraded xorg-server-common (1.18.0-3 -> 1.18.0-4)
[2016-01-12 10:35] [ALPM] upgraded xorg-server (1.18.0-3 -> 1.18.0-4)
[2016-01-12 10:35] [ALPM] upgraded xorg-server-xvfb (1.18.0-3 -> 1.18.0-4)
[2016-01-12 10:35] [ALPM] upgraded xorg-server-xwayland (1.18.0-3 -> 1.18.0-4)
[2016-01-12 10:35] [ALPM] transaction completed

It is definitely that update that did it in.

Also, the proprietary driver works fine but nouveau doesn't like that recent update.

Varg I veum

Member

Registered: 2016-01-13

Posts: 3

Re: System freezing; ksplashqml dumped core

I'm experiencing the same issue after the following upgrades:

[2016-01-12 07:14] [PACMAN] Running 'pacman -Syu'
[2016-01-12 07:14] [PACMAN] synchronizing package lists
[2016-01-12 07:14] [PACMAN] starting full system upgrade
[2016-01-12 07:17] [ALPM] transaction started
[2016-01-12 07:17] [ALPM] upgraded qt5-base (5.5.1-7 -> 5.5.1-8)
[2016-01-12 07:17] [ALPM] upgraded qt5-xmlpatterns (5.5.1-7 -> 5.5.1-8)
[2016-01-12 07:17] [ALPM] upgraded qt5-declarative (5.5.1-7 -> 5.5.1-8)
[2016-01-12 07:17] [ALPM] upgraded qt5-graphicaleffects (5.5.1-7 -> 5.5.1-8)
[2016-01-12 07:17] [ALPM] upgraded qt5-location (5.5.1-7 -> 5.5.1-8)
[2016-01-12 07:17] [ALPM] upgraded qt5-multimedia (5.5.1-7 -> 5.5.1-8)
[2016-01-12 07:17] [ALPM] upgraded qt5-sensors (5.5.1-7 -> 5.5.1-8)
[2016-01-12 07:17] [ALPM] upgraded qt5-webchannel (5.5.1-7 -> 5.5.1-8)
[2016-01-12 07:17] [ALPM] upgraded qt5-webkit (5.5.1-7 -> 5.5.1-8)
[2016-01-12 07:17] [ALPM] upgraded qt5-script (5.5.1-7 -> 5.5.1-8)
[2016-01-12 07:17] [ALPM] upgraded qt5-quick1 (5.5.1-7 -> 5.5.1-8)
[2016-01-12 07:17] [ALPM] upgraded qt5-quickcontrols (5.5.1-7 -> 5.5.1-8)
[2016-01-12 07:17] [ALPM] upgraded qt5-svg (5.5.1-7 -> 5.5.1-8)
[2016-01-12 07:17] [ALPM] upgraded qt5-translations (5.5.1-7 -> 5.5.1-8)
[2016-01-12 07:17] [ALPM] upgraded qt5-tools (5.5.1-7 -> 5.5.1-8)
[2016-01-12 07:17] [ALPM] upgraded qt5-x11extras (5.5.1-7 -> 5.5.1-8)
[2016-01-12 07:17] [ALPM] upgraded xorg-server-common (1.18.0-3 -> 1.18.0-4)
[2016-01-12 07:17] [ALPM] upgraded xorg-server (1.18.0-3 -> 1.18.0-4)
[2016-01-12 07:17] [ALPM] transaction completed

A few minutes after starting KDE the system does not respond to any given input. "top" shows maximum CPU load. Downgrading the packages temporarily did the trick. I put those filthy packages in the IgnorePkg Section of pacman.conf.
I live a life in fear and misery ever since.

Daniel-HD

Member

Registered: 2015-11-27

Posts: 14

Re: System freezing; ksplashqml dumped core

Well, it's a Rolling Release Distribution, isn't it? Seems like my used mirror is lagging behind the one ronw is using. Today I got updates getting me to the same patch status as ronw posted. Especially kdebase-runtime seems to fit now.

[2016-01-13 12:19] [PACMAN] starting full system upgrade
[2016-01-13 12:20] [ALPM] transaction started
[2016-01-13 12:21] [ALPM] upgraded gpgmepp (15.12.0-1 -> 15.12.1-1)
[2016-01-13 12:21] [ALPM] upgraded opus (1.1.1-1 -> 1.1.2-1)
[2016-01-13 12:21] [ALPM] upgraded ark (15.12.0-2 -> 15.12.1-1)
[2016-01-13 12:21] [ALPM] upgraded baloo-widgets (15.12.0-1 -> 15.12.1-1)
[2016-01-13 12:21] [ALPM] upgraded libwbclient (4.3.3-1 -> 4.3.4-1)
[2016-01-13 12:21] [ALPM] upgraded smbclient (4.3.3-1 -> 4.3.4-1)
[2016-01-13 12:21] [ALPM] upgraded kio-extras (15.12.0-1 -> 15.12.1-1)
[2016-01-13 12:21] [ALPM] upgraded dolphin (15.12.0-2 -> 15.12.1-1)
[2016-01-13 12:21] [ALPM] upgraded libkipi (15.12.0-1 -> 15.12.1-1)
[2016-01-13 12:21] [ALPM] upgraded libkdcraw (15.12.0-1 -> 15.12.1-1)
[2016-01-13 12:21] [ALPM] upgraded gwenview (15.12.0-1 -> 15.12.1-1)
[2016-01-13 12:21] [ALPM] upgraded signon-kwallet-extension (15.12.0-1 -> 15.12.1-1)
[2016-01-13 12:21] [ALPM] upgraded kaccounts-integration (15.12.0-1 -> 15.12.1-1)
[2016-01-13 12:21] [ALPM] upgraded kamera (15.12.0-1 -> 15.12.1-1)
[2016-01-13 12:21] [ALPM] upgraded kde-l10n-de (15.12.0-1 -> 15.12.1-1)
[2016-01-13 12:21] [ALPM] upgraded kdelibs (4.14.15-2 -> 4.14.16-1)
[2016-01-13 12:21] [ALPM] upgraded kdebase-runtime (15.12.0-3 -> 15.12.1-1)
[2016-01-13 12:21] [ALPM] upgraded kdegraphics-okular (15.12.0-1 -> 15.12.1-1)
[2016-01-13 12:21] [ALPM] upgraded kdenlive (15.12.0-1 -> 15.12.1-1)
[2016-01-13 12:21] [ALPM] upgraded konsole (15.12.0-1 -> 15.12.1-1)
[2016-01-13 12:21] [ALPM] upgraded kwalletmanager (15.12.0-1 -> 15.12.1-1)
[2016-01-13 12:21] [ALPM] upgraded kwrite (15.12.0-1 -> 15.12.1-1)
[2016-01-13 12:21] [ALPM] upgraded libastro (15.12.0-1 -> 15.12.1-2)
[2016-01-13 12:21] [ALPM] upgraded libkcddb (15.12.0-1 -> 15.12.1-1)
[2016-01-13 12:21] [ALPM] upgraded marble-data (15.12.0-1 -> 15.12.1-2)
[2016-01-13 12:21] [ALPM] upgraded marble (15.12.0-1 -> 15.12.1-2)
[2016-01-13 12:21] [ALPM] upgraded spectacle (15.12.0-1 -> 15.12.1-1)
[2016-01-13 12:21] [ALPM] transaction completed

Now everything is working like before; with some weird behaviour of kactivitymanger (just coredumped again while logging out) and annoying log messages of kscreen, flooding my journal up to every 10 seconds. But these annoyances don't break usability that much, are widely observed and partly known, see –> https://bugs.kde.org/show_bug.cgi?id=355928

As for nouveau, I personally suspect my graphics hardware to be the culprit, since it's a low budget one (Geforce 9500 GS). I don't know for sure, though.

Still missing some explanation for ronw's experience. Did logging out and startx again help in any way, or is Plasma 5 now abandoned by you, in favor for LXQT?

ronw

Member

Registered: 2013-07-02

Posts: 50

Re: System freezing; ksplashqml dumped core

Still missing some explanation for ronw's experience. Did logging out and startx again help in any way, or is Plasma 5 now abandoned by you, in favor for LXQT?

Many, many reboots, but I haven't given up on Plasma yet. After work I removed all the KDE and Plasma bits I could find, deleted things out of .cache, .config, and completely removed .kde and .local. Re-installed Plasma and KDE, and the system freezes very soon after startx.

I did not uninstall Qt bits (logged in to LXQt after all), but will look at the packages you mentioned.

Daniel-HD

Member

Registered: 2015-11-27

Posts: 14

Re: System freezing; ksplashqml dumped core

Okay, I've to update my previous message. I can't startx Plasma 5 any longer, not even showing its splash screen any more while freezing. I only can REISUB my machine. Last thing I did was changing the OpenGL 2.0 backend settings from GLX back to EGL, as was standard before the recent hassle.

I got several other machines laying around, so I still can communicate to you guys.

berbae

Member

From: France

Registered: 2007-02-12

Posts: 1,302

Re: System freezing; ksplashqml dumped core

The patch applied for qt5 5.5.1-7 -> 5.5.1-8 fixes a bug with nvidia proprietary driver, but breaks now nouveau.
I downgraded qt5 hoping a fix will come soon.

ronw

Member

Registered: 2013-07-02

Posts: 50

Re: System freezing; ksplashqml dumped core

Downgraded qt5-base to 5.5.1-7 and no freezes. Thanks berbae!

berbae

Member

From: France

Registered: 2007-02-12

Posts: 1,302

Re: System freezing; ksplashqml dumped core

Unhappily downgrading only qt5 was not enough for me; I downgraded also xorg-server, but still it was not enough.
I have crashes of xorg.

I tried then to go to linux-lts kernel and nvidia-304xx-lts, but still xorg crashed again, for example when using chromium or when the xscreensaver was running.

I had no crashes before monday january 11th.

So I am somewhat out of way now: nouveau is broken and seemingly nvidia-304xx too even with linux-lts...
What can I do?

Boohbah

Member

Registered: 2011-11-19

Posts: 20

Re: System freezing; ksplashqml dumped core

Thanks to all in this thread for finding the cause of the crashes.
I filed a bug report:
https://bugs.archlinux.org/task/47739

Boohbah

Member

Registered: 2011-11-19

Posts: 20

Re: System freezing; ksplashqml dumped core

berbae, do you mean that downgrading only qt5-base to 5.5.1-7 did not fix it for you?
It works for me.

berbae

Member

From: France

Registered: 2007-02-12

Posts: 1,302

Re: System freezing; ksplashqml dumped core

Yes that's what I mean.
I cannot come back to a stable graphical system, using either nouveau or nvidia-304xx with linux or linux-lts kernel even after downgrading xorg-server and qt5.

Presently I try to use again an up-to-date system but still with linux-lts and nvidia-304xx-lts; and I try avoiding chromium, returning to firefox.
It's a very unpleasant experience to me.
I don't like to not be able to choose what I want to use and be constrained to use what I don't want.

I precise I use openbox but with some kde applis, like konsole; xscreensaver seems impacted too.

I don't like to downgrade packages.

Last edited by berbae (2016-01-13 21:22:28)

Daniel-HD

Member

Registered: 2015-11-27

Posts: 14

Re: System freezing; ksplashqml dumped core

Downgrading qt5-base to 5.5.1-7 does the trick for me.

Looking at https://bugs.archlinux.org/task/47728 and https://bbs.archlinux.org/viewtopic.php … 7#p1594907 the applied patch in qt5-base 5.5.1-8 seems to be a quick fix for implementing an upcoming nvidia-361.16 driver version, so downgrading the package for nouveau (and intel, seemingly) users seems to be save right now.

So berbae, your issue must've another cause. Aren't you overengineering a bit?

berbae

Member

From: France

Registered: 2007-02-12

Posts: 1,302

Re: System freezing; ksplashqml dumped core

Does the patched qt5 impact also the nvidia legacy 304 driver?

For now I don't understand what happens on my desktop computer.
Yesterday xorg completely freezed the machine when in linux-lts and nvidia-304xx-lts as I used only firefox (gtk appli) and xterm.
I was not using any qt5 applis.

It's frustrating, I think to re-install nouveau with linux kernel and downgrading qt5, but I am almost sure that did not work when I tried it before.

Last edited by berbae (2016-01-14 10:20:52)

V1del

Forum Moderator

Registered: 2012-10-16

Posts: 21,738

Re: System freezing; ksplashqml dumped core

Then you have a different issue and might want to look into log files and similar, and maybe open another thread since whatever problem you have isn't what is being discussed here. Might as well be your hardware that's dying...

Varg I veum

Member

Registered: 2016-01-13

Posts: 3

Re: System freezing; ksplashqml dumped core

After running another update (including some KDE/Plasma related packages), the problem got more severe. When I'm clicking on _anything_ on my control panel (doesn't matter if KMenu, some applet or a program starter), two Plasma icons appear and Plasma freezes. Can anyone here confirm this behaviour?

Daniel-HD

Member

Registered: 2015-11-27

Posts: 14

Re: System freezing; ksplashqml dumped core

I guess you have updated qt5-base to version 5.5.1-8. For 5.5.1-7, use --ignore qt5-base option while updating.

Well, nevermind.

I put those filthy packages in the IgnorePkg Section of pacman.conf.

Last edited by Daniel-HD (2016-01-14 15:41:06)

viniciustinti

Member

Registered: 2015-05-07

Posts: 2

Re: System freezing; ksplashqml dumped core

The patch applied for qt5 5.5.1-7 -> 5.5.1-8 fixes a bug with nvidia proprietary driver, but breaks now nouveau.
I downgraded qt5 hoping a fix will come soon.

Downgrade qt5 fixed for me too.

berbae

Member

From: France

Registered: 2007-02-12

Posts: 1,302

Re: System freezing; ksplashqml dumped core

@viniciustinti
Good that downgrading qt5 works for you.

In my case, my desktop computer seems to be affected by a hardware problem.
It's a pretty unlucky occurence that it happened just at this time when there is a problem with legacy nvidia 304 driver and latest kernel, as well as an issue with nouveau and patched qt5.

But I don't see another cause to what happens to my machine.

For me, xorg crashes and often entirely freezes the system when being in these configurations:

linux kernel
nouveau
downgraded qt5

using firefox or chromium

or

linux-lts
nvidia-304xx-lts
patched qt5

using firefox or chromium
and no qt5 applis

I cannot see another explanation than a hardware problem (probably the integrated graphic card).
It's a very bad coincidence for me.

I guess I have to buy a new desktop computer with recent hardware components and start afresh my linux installation.

This should take some time before I could be in a usable arch linux installation again.

In the intervalle I can use a laptop with Windows 10 and so continue to have access to the web.

Last edited by berbae (2016-01-15 13:54:07)

Varg I veum

Member

Registered: 2016-01-13

Posts: 3

Re: System freezing; ksplashqml dumped core

@berbae

Have you tried deleting all KDE-relevant config files/folders? After downgrading the qt-packages only temporarily did the trick, _this_ (plaus downgrading qt-packages to version 5.5.1-6 - to be on the safe side) seemed to work out for me. I am working on my machine for three hours without anything crashing/failing. The only issue is that KMail and KSysguard refuse to start - but that's OK

kmail: error while loading shared libraries: libwebp.so.5: cannot open shared object file: No such file or directory
ksysguard: error while loading shared libraries: libwebp.so.5: cannot open shared object file: No such file or directory

Daniel-HD

Member

Registered: 2015-11-27

Posts: 14

Re: System freezing; ksplashqml dumped core

@berbae: With only Xorg freezing/crashing, I would guess it's graphics or memory related. With some vaulty capacitors on the mainboard for example, the failure would be more severe, with my experience leading to sudden reboots. Check entire hardware, though, would be my best advice atm. If it's temperature, maybe some fan and heat sink cleansing could work like a miracle. But, we're going offtopic here.

@ Varg I veum: berbae isn't using Plasma, just some qt5 apps. Thanks for updating your experience, though.

ZeroLinux

Member

Registered: 2011-10-07

Posts: 157

Re: System freezing; ksplashqml dumped core

As temporary solution while waiting upgrade with fixing nouveau I use  kernel parameter "nouveau noaccel=1"