SUMMARY kdeinit5 PID: 16374 Signal: Floating point exception (8) Datum: 12.04.19 12:14:13 STEPS TO REPRODUCE dont't know. There is only Kmail, dolphin and Firefox open at that time it chrashes suddenly OBSERVED RESULT kdeinit5 chrashes EXPECTED RESULT SOFTWARE/OS VERSIONS Linux/ OPensuse tumbleweed Kernel 5.06.-1 default KDE Plasma: (available in About System) KDE Plasma Version: 5.15.4 KDE Frameworks Version: 5.56.0 Qt Version: 5.12.2 ADDITIONAL INFORMATION Application: kdeinit5 (kdeinit5), signal: Floating point exception Using host libthread_db library "/lib64/libthread_db.so.1". [Current thread is 1 (Thread 0x7f21382d1900 (LWP 16374))] Thread 23 (Thread 0x7f20d77fe700 (LWP 16409)): #0 0x00007f2139bd26c4 in read () from /lib64/libc.so.6 #1 0x00007f21387d3880 in ?? () from /usr/lib64/libglib-2.0.so.0 #2 0x00007f213878c90f in g_main_context_check () from /usr/lib64/libglib-2.0.so.0 #3 0x00007f213878cde0 in ?? () from /usr/lib64/libglib-2.0.so.0 #4 0x00007f213878cf5c in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0 #5 0x00007f2139f79e7b in QEventDispatcherGlib::processEvents (this=0x7f20c4000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:424 #6 0x00007f2139f253cb in QEventLoop::exec (this=this@entry=0x7f20d77fdc70, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:140 #7 0x00007f2139d70016 in QThread::exec (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:120 #8 0x00007f213601d565 in ?? () from /usr/lib64/libQt5DBus.so.5 #9 0x00007f2139d71362 in QThreadPrivate::start (arg=0x7f213609dd80) at thread/qthread_unix.cpp:361 #10 0x00007f213920dfab in start_thread () from /lib64/libpthread.so.0 #11 0x00007f2139be16af in clone () from /lib64/libc.so.6 Thread 22 (Thread 0x7f20d7fff700 (LWP 16408)): #0 0x00007f213921403c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x00007f212ee95e13 in ?? () from /usr/lib64/dri/radeonsi_dri.so #2 0x00007f212ee95b67 in ?? () from /usr/lib64/dri/radeonsi_dri.so #3 0x00007f213920dfab in start_thread () from /lib64/libpthread.so.0 #4 0x00007f2139be16af in clone () from /lib64/libc.so.6 Thread 21 (Thread 0x7f20f4ff9700 (LWP 16407)): #0 0x00007f213921403c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x00007f212ee95e13 in ?? () from /usr/lib64/dri/radeonsi_dri.so #2 0x00007f212ee95b67 in ?? () from /usr/lib64/dri/radeonsi_dri.so #3 0x00007f213920dfab in start_thread () from /lib64/libpthread.so.0 #4 0x00007f2139be16af in clone () from /lib64/libc.so.6 Thread 20 (Thread 0x7f20f57fa700 (LWP 16406)): #0 0x00007f213921403c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x00007f212ee95e13 in ?? () from /usr/lib64/dri/radeonsi_dri.so #2 0x00007f212ee95b67 in ?? () from /usr/lib64/dri/radeonsi_dri.so #3 0x00007f213920dfab in start_thread () from /lib64/libpthread.so.0 #4 0x00007f2139be16af in clone () from /lib64/libc.so.6 Thread 19 (Thread 0x7f20f5ffb700 (LWP 16405)): #0 0x00007f213921403c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x00007f212ee95e13 in ?? () from /usr/lib64/dri/radeonsi_dri.so #2 0x00007f212ee95b67 in ?? () from /usr/lib64/dri/radeonsi_dri.so #3 0x00007f213920dfab in start_thread () from /lib64/libpthread.so.0 #4 0x00007f2139be16af in clone () from /lib64/libc.so.6 Thread 18 (Thread 0x7f20f67fc700 (LWP 16404)): #0 0x00007f213921403c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x00007f212ee95e13 in ?? () from /usr/lib64/dri/radeonsi_dri.so #2 0x00007f212ee95b67 in ?? () from /usr/lib64/dri/radeonsi_dri.so #3 0x00007f213920dfab in start_thread () from /lib64/libpthread.so.0 #4 0x00007f2139be16af in clone () from /lib64/libc.so.6 Thread 17 (Thread 0x7f20f6ffd700 (LWP 16403)): #0 0x00007f213921403c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x00007f212ee95e13 in ?? () from /usr/lib64/dri/radeonsi_dri.so #2 0x00007f212ee95b67 in ?? () from /usr/lib64/dri/radeonsi_dri.so #3 0x00007f213920dfab in start_thread () from /lib64/libpthread.so.0 #4 0x00007f2139be16af in clone () from /lib64/libc.so.6 Thread 16 (Thread 0x7f20f77fe700 (LWP 16402)): #0 0x00007f213921403c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x00007f212ee95e13 in ?? () from /usr/lib64/dri/radeonsi_dri.so #2 0x00007f212ee95b67 in ?? () from /usr/lib64/dri/radeonsi_dri.so #3 0x00007f213920dfab in start_thread () from /lib64/libpthread.so.0 #4 0x00007f2139be16af in clone () from /lib64/libc.so.6 Thread 15 (Thread 0x7f20f7fff700 (LWP 16401)): #0 0x00007f213921403c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x00007f212ee95e13 in ?? () from /usr/lib64/dri/radeonsi_dri.so #2 0x00007f212ee95b67 in ?? () from /usr/lib64/dri/radeonsi_dri.so #3 0x00007f213920dfab in start_thread () from /lib64/libpthread.so.0 #4 0x00007f2139be16af in clone () from /lib64/libc.so.6 Thread 14 (Thread 0x7f2118ff9700 (LWP 16400)): #0 0x00007f213921403c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x00007f212ee95e13 in ?? () from /usr/lib64/dri/radeonsi_dri.so #2 0x00007f212ee95b67 in ?? () from /usr/lib64/dri/radeonsi_dri.so #3 0x00007f213920dfab in start_thread () from /lib64/libpthread.so.0 #4 0x00007f2139be16af in clone () from /lib64/libc.so.6 Thread 13 (Thread 0x7f21197fa700 (LWP 16399)): #0 0x00007f213921403c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x00007f212ee95e13 in ?? () from /usr/lib64/dri/radeonsi_dri.so #2 0x00007f212ee95b67 in ?? () from /usr/lib64/dri/radeonsi_dri.so #3 0x00007f213920dfab in start_thread () from /lib64/libpthread.so.0 #4 0x00007f2139be16af in clone () from /lib64/libc.so.6 Thread 12 (Thread 0x7f2119ffb700 (LWP 16398)): #0 0x00007f213921403c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x00007f212ee95e13 in ?? () from /usr/lib64/dri/radeonsi_dri.so #2 0x00007f212ee95b67 in ?? () from /usr/lib64/dri/radeonsi_dri.so #3 0x00007f213920dfab in start_thread () from /lib64/libpthread.so.0 #4 0x00007f2139be16af in clone () from /lib64/libc.so.6 Thread 11 (Thread 0x7f211a7fc700 (LWP 16397)): #0 0x00007f213921403c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x00007f212ee95e13 in ?? () from /usr/lib64/dri/radeonsi_dri.so #2 0x00007f212ee95b67 in ?? () from /usr/lib64/dri/radeonsi_dri.so #3 0x00007f213920dfab in start_thread () from /lib64/libpthread.so.0 #4 0x00007f2139be16af in clone () from /lib64/libc.so.6 Thread 10 (Thread 0x7f211affd700 (LWP 16396)): #0 0x00007f213921403c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x00007f212ee95e13 in ?? () from /usr/lib64/dri/radeonsi_dri.so #2 0x00007f212ee95b67 in ?? () from /usr/lib64/dri/radeonsi_dri.so #3 0x00007f213920dfab in start_thread () from /lib64/libpthread.so.0 #4 0x00007f2139be16af in clone () from /lib64/libc.so.6 Thread 9 (Thread 0x7f211b7fe700 (LWP 16395)): #0 0x00007f213921403c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x00007f212ee95e13 in ?? () from /usr/lib64/dri/radeonsi_dri.so #2 0x00007f212ee95b67 in ?? () from /usr/lib64/dri/radeonsi_dri.so #3 0x00007f213920dfab in start_thread () from /lib64/libpthread.so.0 #4 0x00007f2139be16af in clone () from /lib64/libc.so.6 Thread 8 (Thread 0x7f211bfff700 (LWP 16394)): #0 0x00007f213921403c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x00007f212ee95e13 in ?? () from /usr/lib64/dri/radeonsi_dri.so #2 0x00007f212ee95b67 in ?? () from /usr/lib64/dri/radeonsi_dri.so #3 0x00007f213920dfab in start_thread () from /lib64/libpthread.so.0 #4 0x00007f2139be16af in clone () from /lib64/libc.so.6 Thread 7 (Thread 0x7f212898c700 (LWP 16393)): #0 0x00007f213921403c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x00007f212ee95e13 in ?? () from /usr/lib64/dri/radeonsi_dri.so #2 0x00007f212ee95b67 in ?? () from /usr/lib64/dri/radeonsi_dri.so #3 0x00007f213920dfab in start_thread () from /lib64/libpthread.so.0 #4 0x00007f2139be16af in clone () from /lib64/libc.so.6 Thread 6 (Thread 0x7f212918d700 (LWP 16392)): #0 0x00007f213921403c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x00007f212ee95e13 in ?? () from /usr/lib64/dri/radeonsi_dri.so #2 0x00007f212ee95b67 in ?? () from /usr/lib64/dri/radeonsi_dri.so #3 0x00007f213920dfab in start_thread () from /lib64/libpthread.so.0 #4 0x00007f2139be16af in clone () from /lib64/libc.so.6 Thread 5 (Thread 0x7f212998e700 (LWP 16391)): #0 0x00007f213921403c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x00007f212ee95e13 in ?? () from /usr/lib64/dri/radeonsi_dri.so #2 0x00007f212ee95b67 in ?? () from /usr/lib64/dri/radeonsi_dri.so #3 0x00007f213920dfab in start_thread () from /lib64/libpthread.so.0 #4 0x00007f2139be16af in clone () from /lib64/libc.so.6 Thread 4 (Thread 0x7f212a18f700 (LWP 16390)): #0 0x00007f213921403c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x00007f212ee95e13 in ?? () from /usr/lib64/dri/radeonsi_dri.so #2 0x00007f212ee95b67 in ?? () from /usr/lib64/dri/radeonsi_dri.so #3 0x00007f213920dfab in start_thread () from /lib64/libpthread.so.0 #4 0x00007f2139be16af in clone () from /lib64/libc.so.6 Thread 3 (Thread 0x7f212ab06700 (LWP 16389)): #0 0x00007f213921403c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0 #1 0x00007f212ee95e13 in ?? () from /usr/lib64/dri/radeonsi_dri.so #2 0x00007f212ee95b67 in ?? () from /usr/lib64/dri/radeonsi_dri.so #3 0x00007f213920dfab in start_thread () from /lib64/libpthread.so.0 #4 0x00007f2139be16af in clone () from /lib64/libc.so.6 Thread 2 (Thread 0x7f2134dcc700 (LWP 16375)): #0 0x00007f2139bd6ae9 in poll () from /lib64/libc.so.6 #1 0x00007f213a7fdcc7 in ?? () from /usr/lib64/libxcb.so.1 #2 0x00007f213a7ff8fa in xcb_wait_for_event () from /usr/lib64/libxcb.so.1 #3 0x00007f2134ffa788 in ?? () from /usr/lib64/libQt5XcbQpa.so.5 #4 0x00007f2139d71362 in QThreadPrivate::start (arg=0x5573305eedd0) at thread/qthread_unix.cpp:361 #5 0x00007f213920dfab in start_thread () from /lib64/libpthread.so.0 #6 0x00007f2139be16af in clone () from /lib64/libc.so.6 Thread 1 (Thread 0x7f21382d1900 (LWP 16374)): [KCrash Handler] #6 0x00007f20f4755da2 in GSCreator::create (this=<optimized out>, path=..., width=128, height=128, img=...) at /usr/src/debug/kdegraphics-thumbnailers-18.12.3-1.1.x86_64/ps/gscreator.cpp:281 #7 0x00007f2135c1bdb1 in ThumbnailProtocol::createSubThumbnail (this=this@entry=0x7ffc5028c320, thumbnail=..., filePath=..., segmentWidth=segmentWidth@entry=12, segmentHeight=segmentHeight@entry=7) at /usr/src/debug/kio-extras5-18.12.3-1.1.x86_64/thumbnail/thumbnail.cpp:723 #8 0x00007f2135c1c388 in ThumbnailProtocol::drawSubThumbnail (this=this@entry=0x7ffc5028c320, p=..., filePath=..., width=width@entry=12, height=height@entry=7, xPos=xPos@entry=2, yPos=17, frameWidth=0) at /usr/src/debug/kio-extras5-18.12.3-1.1.x86_64/thumbnail/thumbnail.cpp:755 #9 0x00007f2135c1c9d0 in ThumbnailProtocol::thumbForDirectory (this=this@entry=0x7ffc5028c320, directory=...) at /usr/src/debug/kio-extras5-18.12.3-1.1.x86_64/thumbnail/thumbnail.cpp:558 #10 0x00007f2135c1e117 in ThumbnailProtocol::get (this=0x7ffc5028c320, url=...) at /usr/src/debug/kio-extras5-18.12.3-1.1.x86_64/thumbnail/thumbnail.cpp:238 #11 0x00007f21364ade36 in KIO::SlaveBase::dispatch (this=0x7ffc5028c320, command=67, data=...) at /usr/src/debug/kio-5.56.0-1.1.x86_64/src/core/slavebase.cpp:1126 #12 0x00007f21364ae4f6 in KIO::SlaveBase::dispatchLoop (this=this@entry=0x7ffc5028c320) at /usr/src/debug/kio-5.56.0-1.1.x86_64/src/core/slavebase.cpp:325 #13 0x00007f2135c1b0bc in kdemain (argc=<optimized out>, argv=<optimized out>) at /usr/src/debug/kio-extras5-18.12.3-1.1.x86_64/thumbnail/thumbnail.cpp:138 #14 0x000055732e7a5bf7 in launch (argc=4, _name=0x5573305c84f8 "/usr/lib64/qt5/plugins/kf5/kio/thumbnail.so", args=<optimized out>, cwd=<optimized out>, envc=0, envs=<optimized out>, reset_env=false, tty=0x0, avoid_loops=false, startup_id_str=0x55732e7a9173 "0") at /usr/src/debug/kinit-5.56.0-1.1.x86_64/src/kdeinit/kinit.cpp:706 #15 0x000055732e7a6c2a in handle_launcher_request (sock=8, who=<optimized out>) at /usr/src/debug/kinit-5.56.0-1.1.x86_64/src/kdeinit/kinit.cpp:1146 #16 0x000055732e7a7548 in handle_requests (waitForPid=0) at /usr/src/debug/kinit-5.56.0-1.1.x86_64/src/kdeinit/kinit.cpp:1339 #17 0x000055732e7a25b5 in main (argc=5, argv=<optimized out>) at /usr/src/debug/kinit-5.56.0-1.1.x86_64/src/kdeinit/kinit.cpp:1785 [Inferior 1 (process 16374) detached]
Could you find the Postscript or PDF file which causes GhostScript to crash?
(In reply to Christoph Feck from comment #1) > Could you find the Postscript or PDF file which causes GhostScript to crash? I'm not sure. I may have opened an e-mail attachment when it happened. i can't trace the trigger at the moment
*** Bug 415190 has been marked as a duplicate of this bug. ***
It is a division by zero. With certain sizes, the "scale" variable can be zero, and I suggest to modify the code to use floats. https://cgit.kde.org/kdegraphics-thumbnailers.git/tree/ps/gscreator.cpp#n276
*** Bug 414905 has been marked as a duplicate of this bug. ***
Created attachment 124525 [details] File to reproduce the crash
Git commit af3f38a4d8f6ab66a463dd13e78385f34f4af933 by Elvis Angelaccio. Committed on 28/12/2019 at 18:58. Pushed by elvisangelaccio into branch 'release/19.12'. Prevent division by zero and force ghostscript run The `scale` variable can be zero since it's an int. This code should probably be refactored to use floats, but since no one touched it in years, this is a quick workaround to not make it crash and to get a working thumbnail by forcing a ghostscript run with the `break;`. FIXED-IN: 19.12.1 M +1 -0 ps/gscreator.cpp https://commits.kde.org/kdegraphics-thumbnailers/af3f38a4d8f6ab66a463dd13e78385f34f4af933
(In reply to Christoph Feck from comment #4) > It is a division by zero. With certain sizes, the "scale" variable can be > zero, and I suggest to modify the code to use floats. > > https://cgit.kde.org/kdegraphics-thumbnailers.git/tree/ps/gscreator.cpp#n276 I took the liberty to push a different fix. I tried to use floats and while it stopped crashing, it still wouldn't get a thumbnail out of the attached file. I then looked at the rest of the code and I gave up. Not easy at all to refactor it with floats.
Thanks a lot for the fix!