[kmail2] [Bug 381955] kmail hangs or causes desktop to hang when used with Nouveau graphics driver

[Daniel Vrátil]

https://bugs.kde.org/show_bug.cgi?id=381955

Daniel Vrátil  changed:

   What|Removed |Added

 Status|REPORTED|RESOLVED
URL||https://bugs.freedesktop.or
   ||g/show_bug.cgi?id=91632
 CC||dvra...@kde.org
 Resolution|--- |UPSTREAM

--- Comment #5 from Daniel Vrátil  ---
Sorry, this issue is out of our control, it's a problem between QtWebEngine and
Nouveau.

There's an upstream bug report for this in the nouveau bug tracker:
https://bugs.freedesktop.org/show_bug.cgi?id=91632

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[kmail2] [Bug 381955] kmail hangs or causes desktop to hang when used with Nouveau graphics driver

[Rudi Gaelzer]

https://bugs.kde.org/show_bug.cgi?id=381955

Rudi Gaelzer  changed:

   What|Removed |Added

 CC||rgael...@gmail.com

--- Comment #4 from Rudi Gaelzer  ---
(In reply to n8807604 from comment #3)
> 
> Standard fedora 28 installation
> dnf list '*kmail'
> kmail.x86_64   18.04.3-1.fc28  
> @updates
> nouveau: dnf list '*nouveau*'
> xorg-x11-drv-nouveau.x86_64  1:1.0.15-4.fc28  
> @anacond
> 
> kmail hangs or causes desktop to hang when used with Nouveau graphics driver
> like https://bugs.kde.org/show_bug.cgi?id=381955
> but with kmail2 5.8.3
> 
>  I am not sure whether this is the same bug or not.
> 
> Error message when kmail was started in the shell (tcsh)
> after that line many  lines of backtrace was printed.
> kmail: ../nouveau/pushbuf.c:723: nouveau_pushbuf_data: Assertion `kref'
> failed.
> 
I'm having exactly the same problem with the same versions of
Fedora/kmail/Nouveau.

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[kmail2] [Bug 381955] kmail hangs or causes desktop to hang when used with Nouveau graphics driver

[bugzilla_noreply]

https://bugs.kde.org/show_bug.cgi?id=381955

n8807...@students.meduniwien.ac.at changed:

   What|Removed |Added

 CC||n8807604@students.meduniwie
   ||n.ac.at
   Platform|Neon Packages   |Fedora RPMs

--- Comment #3 from n8807...@students.meduniwien.ac.at ---
The bug is very annoying because one have to start kmail very often and is
forced to use other email clients or web mail services.

Standard fedora 28 installation
dnf list '*kmail'
kmail.x86_64   18.04.3-1.fc28  
@updates
nouveau: dnf list '*nouveau*'
xorg-x11-drv-nouveau.x86_64  1:1.0.15-4.fc28   @anacond

kmail hangs or causes desktop to hang when used with Nouveau graphics driver
like https://bugs.kde.org/show_bug.cgi?id=381955
but with kmail2 5.8.3

 I am not sure whether this is the same bug or not.

Error message when kmail was started in the shell (tcsh)
after that line many  lines of backtrace was printed.
kmail: ../nouveau/pushbuf.c:723: nouveau_pushbuf_data: Assertion `kref' failed.

this was produced by  gdb:

Thread 1 "kmail" received signal SIGABRT, Aborted.
0x7f6fd2ebeeab in raise () from /lib64/libc.so.6
(gdb) bt
#0  0x7f6fd2ebeeab in raise () at /lib64/libc.so.6
#1  0x7f6fd2ea95b9 in abort () at /lib64/libc.so.6
#2  0x7f6fd2ea9491 in _nl_load_domain.cold.0 () at /lib64/libc.so.6
#3  0x7f6fd2eb7612 in  () at /lib64/libc.so.6
#4  0x7f6f99c4dcd7 in  () at /lib64/libdrm_nouveau.so.2
#5  0x7f6f99c4dc37 in nouveau_pushbuf_data () at /lib64/libdrm_nouveau.so.2
#6  0x7f6f99c4dd6f in pushbuf_submit.isra () at /lib64/libdrm_nouveau.so.2
#7  0x7f6f99c4e1bf in pushbuf_flush () at /lib64/libdrm_nouveau.so.2
#8  0x7f6f99c4edd4 in nouveau_pushbuf_kick () at /lib64/libdrm_nouveau.so.2
#9  0x7f6f9a44ba9a in nvc0_flush () at /usr/lib64/dri/nouveau_dri.so
#10 0x7f6f9a0d4c4f in st_context_flush () at /usr/lib64/dri/nouveau_dri.so
#11 0x7f6f9a235a8f in dri_flush () at /usr/lib64/dri/nouveau_dri.so
#12 0x7f6f9bbcd1c7 in loader_dri3_swap_buffers_msc ()
at /lib64/libGLX_mesa.so.0
#13 0x7f6fd8ae24aa in QGLXContext::swapBuffers(QPlatformSurface*) ()
at /usr/lib64/qt5/plugins/xcbglintegrations/libqxcb-glx-integration.so
#14 0x7f6fd41bb45f in QOpenGLContext::swapBuffers(QSurface*) ()
at /lib64/libQt5Gui.so.5
#15 0x7f6fd43e12cc in QPlatformBackingStore::composeAndFlush(QWindow*,
QRegion const&, QPoint const&, QPlatformTextureList*, bool) ()
at /lib64/libQt5Gui.so.5
#16 0x7f6fa2f81138 in QXcbBackingStore::composeAndFlush(QWindow*, QRegion
const&, QPoint const&, QPlatformTextureList*, bool) ()
---Type  to continue, or q  to quit--- 
at /lib64/libQt5XcbQpa.so.5
#17 0x7f6fd46e0cbb in QWidgetBackingStore::qt_flush(QWidget*, QRegion
const&, QBackingStore*, QWidget*, QPlatformTextureList*, QWidgetBackingStore*)
()
at /lib64/libQt5Widgets.so.5
#18 0x7f6fd46e278b in QWidgetBackingStore::flush(QWidget*) ()
at /lib64/libQt5Widgets.so.5
#19 0x7f6fd46e3aa2 in QWidgetBackingStore::doSync() ()
at /lib64/libQt5Widgets.so.5
#20 0x7f6fd46e3c41 in QWidgetBackingStore::sync() ()
at /lib64/libQt5Widgets.so.5
#21 0x7f6fd46fb435 in QWidgetPrivate::syncBackingStore() ()
at /lib64/libQt5Widgets.so.5
#22 0x7f6fd47136f8 in QWidget::event(QEvent*) ()
at /lib64/libQt5Widgets.so.5
#23 0x7f6fd481cd68 in QMainWindow::event(QEvent*) ()
at /lib64/libQt5Widgets.so.5
#24 0x7f6fd7321e2b in KMainWindow::event(QEvent*) ()
at /lib64/libKF5XmlGui.so.5
#25 0x7f6fd736b5e9 in KXmlGuiWindow::event(QEvent*) ()
at /lib64/libKF5XmlGui.so.5
#26 0x7f6fd46d4475 in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() at /lib64/libQt5Widgets.so.5
#27 0x7f6fd46dbb90 in QApplication::notify(QObject*, QEvent*) ()
---Type  to continue, or q  to quit---
at /lib64/libQt5Widgets.so.5
#28 0x7f6fd3ddbc36 in QCoreApplication::notifyInternal2(QObject*, QEvent*)
() at /lib64/libQt5Core.so.5
#29 0x7f6fd3ddee0b in QCoreApplicationPrivate::sendPostedEvents(QObject*,
int, QThreadData*) () at /lib64/libQt5Core.so.5
#30 0x7f6fd3e2c507 in postEventSourceDispatch(_GSource*, int (*)(void*),
void*) () at /lib64/libQt5Core.so.5
#31 0x7f6fbe7a18ad in g_main_context_dispatch () at /lib64/libglib-2.0.so.0
#32 0x7f6fbe7a1c78 in g_main_context_iterate.isra ()
at /lib64/libglib-2.0.so.0
#33 0x7f6fbe7a1d10 in g_main_context_iteration ()
at /lib64/libglib-2.0.so.0
#34 0x7f6fd3e2c293 in
QEventDispatcherGlib::processEvents(QFlags) ()
at /lib64/libQt5Core.so.5
#35 0x7f6fa2ff27c5 in
QPAEventDispatcherGlib::processEvents(QFlags) ()
at /lib64/libQt5XcbQpa.so.5
#36 0x7f6fd3ddab7b in
QEventLoop::exec(QFlags) () at
/lib64/libQt5Core.so.5
#37 

[kmail2] [Bug 381955] kmail hangs or causes desktop to hang when used with Nouveau graphics driver

[Benoît Vézina]

https://bugs.kde.org/show_bug.cgi?id=381955

Benoît Vézina  changed:

   What|Removed |Added

 CC||ben...@vezina.biz

--- Comment #2 from Benoît Vézina  ---
Same kind of issue here, kmail unusable with nouveau, closing when we want to
open a message but using nvidia-340 fixit (but performance is not there
anymore)

Can you fix it please

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[kmail2] [Bug 381955] kmail hangs or causes desktop to hang when used with Nouveau graphics driver

[Nick]

https://bugs.kde.org/show_bug.cgi?id=381955

--- Comment #1 from Nick  ---
Created attachment 106431
  --> https://bugs.kde.org/attachment.cgi?id=106431=edit
syslog output when kmail 5.5.2 causes kmail/desktop to hang

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