Application: kwin_x11 (5.5.5) Qt Version: 5.5.1 Operating System: Linux 4.4.0-22-generic x86_64 Distribution: Ubuntu 16.04 LTS -- Information about the crash: - What I was doing when the application crashed: I tried to open Dolphin. Dolphin opens successfully but kwin crashes and all windows from every desktop are suddenly visible all at once. I do kwin --replace to get things back to normal. The crash can be reproduced every time. -- Backtrace: Application: KWin (kwin_x11), signal: Aborted Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1". [Current thread is 1 (Thread 0x7f6afe024940 (LWP 3219))] Thread 2 (Thread 0x7f6accf0f700 (LWP 3226)): #0 pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185 #1 0x00007f6afb26abd4 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Script.so.5 #2 0x00007f6afb26ac19 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Script.so.5 #3 0x00007f6af7a966fa in start_thread (arg=0x7f6accf0f700) at pthread_create.c:333 #4 0x00007f6afdb1ab5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 1 (Thread 0x7f6afe024940 (LWP 3219)): [KCrash Handler] #6 0x00007f6afda49418 in __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:54 #7 0x00007f6afda4b01a in __GI_abort () at abort.c:89 #8 0x00007f6afda8b72a in __libc_message (do_abort=do_abort@entry=2, fmt=fmt@entry=0x7f6afdba46b0 "*** Error in `%s': %s: 0x%s ***\n") at ../sysdeps/posix/libc_fatal.c:175 #9 0x00007f6afda93f4a in malloc_printerr (ar_ptr=<optimized out>, ptr=<optimized out>, str=0x7f6afdba47e0 "double free or corruption (!prev)", action=3) at malloc.c:5007 #10 _int_free (av=<optimized out>, p=<optimized out>, have_lock=1) at malloc.c:3868 #11 0x00007f6afda96a99 in _int_realloc (av=av@entry=0x7f6afddd7b20 <main_arena>, oldp=oldp@entry=0x131c610, oldsize=oldsize@entry=240, nb=nb@entry=272) at malloc.c:4359 #12 0x00007f6afda97db9 in __GI___libc_realloc (oldmem=0x131c620, bytes=bytes@entry=256) at malloc.c:3046 #13 0x00007f6afbe277b7 in get_index (c=0x131dff0, c=0x131dff0, idx=8) at ../../src/xcb_ext.c:52 #14 get_lazyreply (c=c@entry=0x131dff0, ext=ext@entry=0x7f6af9226050 <xcb_render_id>) at ../../src/xcb_ext.c:74 #15 0x00007f6afbe27843 in xcb_get_extension_data (c=c@entry=0x131dff0, ext=0x7f6af9226050 <xcb_render_id>) at ../../src/xcb_ext.c:95 #16 0x00007f6afbe25527 in xcb_send_request64 (c=0x131dff0, flags=flags@entry=0, vector=vector@entry=0x7fff5d3356b0, req=req@entry=0x7f6af9225c40 <xcb_req>) at ../../src/xcb_out.c:204 #17 0x00007f6afbe25969 in xcb_send_request (c=<optimized out>, flags=flags@entry=0, vector=vector@entry=0x7fff5d3356b0, req=req@entry=0x7f6af9225c40 <xcb_req>) at ../../src/xcb_out.c:292 #18 0x00007f6af90213ab in xcb_render_free_picture (c=<optimized out>, picture=<optimized out>) at render.c:1157 #19 0x00007f6afb665690 in KWin::XRenderPictureData::~XRenderPictureData (this=<optimized out>, __in_chrg=<optimized out>) at /build/kwin-2AFxJo/kwin-5.5.5/libkwineffects/kwinxrenderutils.cpp:154 #20 0x00007f6afb667074 in QExplicitlySharedDataPointer<KWin::XRenderPictureData>::~QExplicitlySharedDataPointer (this=<optimized out>, __in_chrg=<optimized out>) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qshareddata.h:156 #21 KWin::XRenderPicture::~XRenderPicture (this=<optimized out>, __in_chrg=<optimized out>) at /build/kwin-2AFxJo/kwin-5.5.5/libkwineffects/kwinxrenderutils.h:66 #22 0x00007f6afda4dfe8 in __run_exit_handlers (status=0, listp=0x7f6afddd75f8 <__exit_funcs>, run_list_atexit=run_list_atexit@entry=true) at exit.c:82 #23 0x00007f6afda4e035 in __GI_exit (status=<optimized out>) at exit.c:104 #24 0x00007f6afda34837 in __libc_start_main (main=0x400780 <main(int, char**)>, argc=2, argv=0x7fff5d335828, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff5d335818) at ../csu/libc-start.c:325 #25 0x00000000004007b9 in _start () Possible duplicates by query: bug 363251, bug 354434, bug 349754. Reported using DrKonqi
This is a crash on exit, bug #363251 Likely triggered in the "dead" kwin process when calling "kwin_x11 --replace" and not the actual problem (ie. not related to "opening dolphin" and all decos gone) Can you please post the output of "qdbus org.kde.KWin /KWin supportInformation"?
Created attachment 99442 [details] output of 'qdbus org.kde.KWin /KWin supportInformation' as requested by Thomas Lübking
> Plugin: org.kde.kwin.aurorae quelle surprise... run "kcmshell5 kwindecoration" and switch to breeze, do the crashes still happen afterwards?
That does appear to have fixed it. No more kwin crashes. This seems to have started for me after a recent Kubuntu 16.04 update. It did not cause me any trouble until a couple days before I submitted the ticket. Thank you for your help, Thomas. If there's anything else I can provide, let me know.
This will be the linked bug, upstream bug is https://bugreports.qt.io/browse/QTBUG-53452 There's unfortunately not much you can doother than not using aurorae. *** This bug has been marked as a duplicate of bug 361236 ***