Processed: Re: Bug#923720: plasma-discover: Plasma-discover segfaults on Stretch
Processing commands for cont...@bugs.debian.org: > reassign 923720 libappstreamqt2 0.10.6-2 Bug #923720 [plasma-discover] plasma-discover: Plasma-discover segfaults on Stretch Bug reassigned from package 'plasma-discover' to 'libappstreamqt2'. No longer marked as found in versions plasma-discover/5.8.5-3. No longer marked as fixed in versions plasma-discover/5.10.5-1 and libappstreamqt2/0.11.3-1. Bug #923720 [libappstreamqt2] plasma-discover: Plasma-discover segfaults on Stretch Marked as found in versions appstream/0.10.6-2. > End of message, stopping processing here. Please contact me if you need assistance. -- 923720: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=923720 Debian Bug Tracking System Contact ow...@bugs.debian.org with problems
Bug#923720: plasma-discover: Plasma-discover segfaults on Stretch
reassign 923720 libappstreamqt2 0.10.6-2
Processed (with 1 error): Re: Bug#923720: plasma-discover: Plasma-discover segfaults on Stretch
Processing control commands: > reassign 923720 libappstreamqt2/0.10.6-2 Unknown command or malformed arguments to command. > affects 923720 plasma-discover Bug #923720 [plasma-discover] plasma-discover: Plasma-discover segfaults on Stretch Added indication that 923720 affects plasma-discover > fixed 923720 libappstreamqt2/0.11.3-1 Bug #923720 [plasma-discover] plasma-discover: Plasma-discover segfaults on Stretch The source libappstreamqt2 and version 0.11.3-1 do not appear to match any binary packages Marked as fixed in versions libappstreamqt2/0.11.3-1. > fixed 923720 plasma-discover/5.10.5-1 Bug #923720 [plasma-discover] plasma-discover: Plasma-discover segfaults on Stretch Marked as fixed in versions plasma-discover/5.10.5-1. > tags 923720 + upstream fixed-upstream patch Bug #923720 [plasma-discover] plasma-discover: Plasma-discover segfaults on Stretch Added tag(s) upstream, patch, and fixed-upstream. -- 923720: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=923720 Debian Bug Tracking System Contact ow...@bugs.debian.org with problems
Bug#923720: plasma-discover: Plasma-discover segfaults on Stretch
Control: reassign 923720 libappstreamqt2/0.10.6-2
Control: affects 923720 plasma-discover
Control: fixed 923720 libappstreamqt2/0.11.3-1
Control: fixed 923720 plasma-discover/5.10.5-1
Control: tags 923720 + upstream fixed-upstream patch
Hello Everyone,
tried to get some more information from the backtrace.
I could not reproduce it but I think in this case method
AppStream::Pool::load got called with strerror being a null
pointer and for some reason the pool could not be loaded,
therefore line 77 was reached, trying to dereference strerror.
(gdb) list AppStream::Pool::load(QString*)
71
72 bool Pool::load(QString* strerror)
73 {
74 g_autoptr(GError) error = nullptr;
75 bool ret = as_pool_load (d->m_pool, NULL, );
76 if (!ret && error) {
77 *strerror = QString::fromUtf8(error->message); <<<
78 }
79 return ret;
80 }
81
This led to upstream fix in package appstream, available since 0.11.3: [1] [2]
Another fix was done in discover before, available since v5.10.5: [3] [4]
Therefore I assume this just affects Stretch.
Kind regards,
Bernhard
[1] https://github.com/ximion/appstream/pull/126
[2]
https://github.com/ximion/appstream/commit/32f1445fd3f348598edd5e24e29ad3644c299639
[3] https://bugs.kde.org/show_bug.cgi?id=382916
[4]
https://cgit.kde.org/discover.git/commit/?id=3a718124d45d60c49bb586e14d348f233178b34b
# Stretch amd64 qemu VM
apt update
apt dist-upgrade
apt install devscripts dpkg-dev systemd-coredump gdb xserver-xorg sddm
plasma-desktop muon libappstreamqt2-dbgsym plasma-discover-dbgsym
libglib2.0-0-dbg
systemctl start sddm
mkdir /tmp/source/appstream/orig -p
cd/tmp/source/appstream/orig
apt source appstream
cd
###
export DISPLAY=:0
# plasma-discover
gdb -q --args plasma-discover
set width 0
set pagination off
directory /tmp/source/appstream/orig/appstream-0.10.6
display/i $pc
break AppStream::Pool::load
y
run
disa 1.1
disa 1.3
disa 1.4
cont
bt
benutzer@debian:~$ gdb -q --args plasma-discover
Reading symbols from plasma-discover...Reading symbols from
/usr/lib/debug/.build-id/8e/af6f71ec2d372a44c646c9eb0311f4bb45dd50.debug...done.
done.
(gdb) set width 0
(gdb) set pagination off
(gdb) directory /tmp/source/appstream/orig/appstream-0.10.6
Source directories searched:
/tmp/source/appstream/orig/appstream-0.10.6:$cdir:$cwd
(gdb) display/i $pc
1: x/i $pc
(gdb) break AppStream::Pool::load
Function "AppStream::Pool::load" not defined.
Make breakpoint pending on future shared library load? (y or [n]) y
Breakpoint 1 (AppStream::Pool::load) pending.
(gdb) run
Starting program: /usr/bin/plasma-discover
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[New Thread 0x7fffe66c2700 (LWP 2475)]
[New Thread 0x7fffe5a39700 (LWP 2476)]
[New Thread 0x7fffe5238700 (LWP 2478)]
[New Thread 0x7fffd278d700 (LWP 2479)]
[New Thread 0x7fffd1f8c700 (LWP 2480)]
[New Thread 0x7fffd178b700 (LWP 2481)]
[New Thread 0x7fffd0f8a700 (LWP 2482)]
[New Thread 0x7fffd0789700 (LWP 2483)]
[New Thread 0x7fffcff88700 (LWP 2484)]
[New Thread 0x7fffcf787700 (LWP 2485)]
[New Thread 0x7fffcef86700 (LWP 2486)]
[New Thread 0x7fffce01e700 (LWP 2487)]
[New Thread 0x7fffcd81c700 (LWP 2488)]
file:///usr/lib/x86_64-linux-gnu/qt5/qml/org/kde/kirigami/GlobalDrawer.qml:213:9:
QML Flickable: Binding loop detected for property "contentWidth"
invalid kns backend! "" because: "Couldn't find knsrc file: comic.knsrc"
Thread 1 "plasma-discover" hit Breakpoint 1, 0x7fffc77e3cd0 in
AppStream::Pool::load()@plt () from
/usr/lib/x86_64-linux-gnu/qt5/plugins/discover/packagekit-backend.so
1: x/i $pc
=> 0x7fffc77e3cd0 <_ZN9AppStream4Pool4loadEv@plt>: jmpq *0x2305ca(%rip)
# 0x7fffc7a142a0
(gdb) disa 1.1
(gdb) disa 1.3
(gdb) disa 1.4
(gdb) cont
Continuing.
Thread 1 "plasma-discover" hit Breakpoint 1, AppStream::Pool::load
(this=this@entry=0x55dcd3c8, strerror=strerror@entry=0x0) at
./qt/pool.cpp:73
73 {
1: x/i $pc
=> 0x7fffc738d020 :push %r12
(gdb) next
75 bool ret = as_pool_load (d->m_pool, NULL, );
1: x/i $pc
=> 0x7fffc738d038 : mov0x10(%rdi),%rax
(gdb)
74 g_autoptr(GError) error = nullptr;
1: x/i $pc
=> 0x7fffc738d03c : movq $0x0,0x10(%rsp)
(gdb)
75 bool ret = as_pool_load (d->m_pool, NULL, );
1: x/i $pc
=> 0x7fffc738d045 : test %rax,%rax
(gdb)
76 if (!ret && error) {
1: x/i $pc
=> 0x7fffc738d065 : jne0x7fffc738d0b8
(gdb) bt
#0 0x7fffc738d065 in AppStream::Pool::load(QString*)
(this=this@entry=0x55dcd3c8, strerror=strerror@entry=0x0) at
./qt/pool.cpp:76
#1 0x7fffc738d147 in AppStream::Pool::load()
(this=this@entry=0x55dcd3c8) at ./qt/pool.cpp:69
#2 0x7fffc77ea7f3 in PackageKitBackend::PackageKitBackend(QObject*)
(this=0x55dcd3b0, parent=) at
Bug#923720: plasma-discover: Plasma-discover segfaults on Stretch
Package: plasma-discover Version: 5.8.5-3 Severity: grave Justification: renders package unusable Hi, Tried to run Plasma-Discover on new installation of Debian Stretch. Got segfault. Please see stracktrace below: Application: Discover (plasma-discover), signal: Segmentation fault Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1". [Current thread is 1 (Thread 0x7ff75c1ded80 (LWP 19975))] Thread 5 (Thread 0x7ff738ea3700 (LWP 19985)): #0 0x7ff7594b8bba in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #1 0x7ff7596dc93a in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #2 0x7ff754201edd in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #3 0x7ff75420291b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #4 0x7ff754202b0c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #5 0x7ff7596dd1eb in QEventDispatcherGlib::processEvents(QFlags) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #6 0x7ff759686d1a in QEventLoop::exec(QFlags) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #7 0x7ff7594b5093 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #8 0x7ff7594b9d48 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #9 0x7ff7564024a4 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0 #10 0x7ff758aced0f in clone () from /lib/x86_64-linux-gnu/libc.so.6 Thread 4 (Thread 0x7ff7396a4700 (LWP 19984)): #0 0x7ff758ac192d in read () from /lib/x86_64-linux-gnu/libc.so.6 #1 0x7ff751eda073 in ?? () from /usr/lib/x86_64-linux-gnu/libnvidia-tls.so.390.87 #2 0x7ff754246d40 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #3 0x7ff7542024be in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #4 0x7ff754202994 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #5 0x7ff754202b0c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #6 0x7ff7596dd1eb in QEventDispatcherGlib::processEvents(QFlags) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #7 0x7ff759686d1a in QEventLoop::exec(QFlags) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #8 0x7ff7594b5093 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #9 0x7ff75ba95406 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5 #10 0x7ff7594b9d48 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #11 0x7ff7564024a4 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0 #12 0x7ff758aced0f in clone () from /lib/x86_64-linux-gnu/libc.so.6 Thread 3 (Thread 0x7ff7408b2700 (LWP 19979)): #0 0x7ff751eda0b4 in ?? () from /usr/lib/x86_64-linux-gnu/libnvidia-tls.so.390.87 #1 0x7ff754246d40 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #2 0x7ff7542024be in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #3 0x7ff754202994 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #4 0x7ff754202b0c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #5 0x7ff7596dd1eb in QEventDispatcherGlib::processEvents(QFlags) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #6 0x7ff759686d1a in QEventLoop::exec(QFlags) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #7 0x7ff7594b5093 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #8 0x7ff759e3d6a5 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5 #9 0x7ff7594b9d48 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #10 0x7ff7564024a4 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0 #11 0x7ff758aced0f in clone () from /lib/x86_64-linux-gnu/libc.so.6 Thread 2 (Thread 0x7ff7410b3700 (LWP 19978)): #0 0x7ff758ac58bd in poll () from /lib/x86_64-linux-gnu/libc.so.6 #1 0x7ff7542029f6 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #2 0x7ff754202b0c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 #3 0x7ff7596dd1eb in QEventDispatcherGlib::processEvents(QFlags) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #4 0x7ff759686d1a in QEventLoop::exec(QFlags) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #5 0x7ff7594b5093 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #6 0x7ff75c31e6e5 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5 #7 0x7ff7594b9d48 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #8 0x7ff7564024a4 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0 #9 0x7ff758aced0f in clone () from /lib/x86_64-linux-gnu/libc.so.6 Thread 1 (Thread 0x7ff75c1ded80 (LWP 19975)): [KCrash Handler] #6 0x7ff729c91094 in AppStream::Pool::load(QString*) () from /usr/lib/x86_64-linux-gnu/libAppStreamQt.so.2 #7 0x7ff72a0ee7f3 in PackageKitBackend::PackageKitBackend (this=0x555aa7a12560, parent=) at
