https://bugs.kde.org/show_bug.cgi?id=438097
Ash Blake <telepath...@tutanota.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |telepath...@tutanota.com
--- Comment #14 from Ash Blake <telepath...@tutanota.com> ---
Created attachment 141780
--> https://bugs.kde.org/attachment.cgi?id=141780&action=edit
Backtrace from 5.22.90
This is a backtrace from Plasma 5.22.90 from the Arch Linux kde-unstable repo,
with the KWin package rebuilt from source to provide debug symbols.
The crash happened randomly while using Jetbrains IntelliJ IDEA.
My effects setup is mostly default, I only enabled the new Overview effect.
Effect list:
- kwin4_effect_windowaperture
- kwin4_effect_squash
- kwin4_effect_sessionquit
- kwin4_effect_morphingpopups
- kwin4_effect_maximize
- kwin4_effect_logout
- kwin4_effect_login
- kwin4_effect_fullscreen
- kwin4_effect_frozenapp
- kwin4_effect_fadingpopups
- kwin4_effect_fade
- kwin4_effect_dialogparent
- zoom
- slidingpopups
- slide
- screenshot
- desktopgrid
- colorpicker
- presentwindows
- overview
- highlightwindow
- blur
- contrast
- startupfeedback
- screenedge
- screentransform
- kscreen
I analysed the core dump with GDB - the crash happened in kwin4_effect_fade.
Redacted log from the gdb session (at the innermost stack frame):
(gdb) set print pretty on
(gdb) set print object on
(gdb) p *this
$1 = (KWin::ScriptedEffect) {
...
members of KWin::ScriptedEffect:
...
m_effectName = {
d = 0x55f534b8f590
},
...
}
(gdb) p this->m_effectName->d
$3 = (QString::Data *) 0x55f534b8f590
(gdb) set $data_start = (char*)this->m_effectName->d +
this->m_effectName->d->offset
(gdb) set $len = this->m_effectName->d->size
(gdb) set $i = 0
(gdb) while $i < 2*$len
>printf "%c", *($data_start + $i)
>set $i = $i + 2
>end
kwin4_effect_fade
When the crash happens again, I'll check if it was the same effect.
If so, I'll disable it and test some more.
Some information about that EffectWindow pointer:
(gdb) p *(entry.i->key)
$45 = {
<QObject> = {<No data fields>},
members of KWin::EffectWindow:
static staticMetaObject = {
d = {
superdata = {
direct = 0x7f9fae97c740 <QObject::staticMetaObject>
},
stringdata = 0x7f9fafda5ae0 <qt_meta_stringdata_KWin__EffectWindow>,
data = 0x7f9fafda55a0 <qt_meta_data_KWin__EffectWindow>,
static_metacall = 0x7f9fafd8ced0
<KWin::EffectWindow::qt_static_metacall(QObject*, QMetaObject::Call, int,
void**)>,
relatedMetaObjects = 0x0,
extradata = 0x0
}
},
d = {
d = 0x20a00000282
}
}
(gdb) p &(entry.i->key->d)
$33 = (QScopedPointer<KWin::EffectWindow::Private,
QScopedPointerDeleter<KWin::EffectWindow::Private> > *) 0x55f53571a4d0
(gdb) p entry.i->key->d.d
$34 = (KWin::EffectWindow::Private *) 0x20a00000282
(gdb) p *(entry.i->key->d.d)
Cannot access memory at address 0x20a00000282
--
You are receiving this mail because:
You are watching all bug changes.
