https://bugs.kde.org/show_bug.cgi?id=386430
Bug ID: 386430 Summary: Crash in XCB kwin crash handler Product: kwin Version: unspecified Platform: Other OS: Linux Status: UNCONFIRMED Severity: normal Priority: NOR Component: general Assignee: kwin-bugs-n...@kde.org Reporter: k...@davidedmundson.co.uk Target Milestone: --- Run: kwin_x11 --crashes 20 We get the prompt to select a WM. On exit, kwin crashes. Valgrind ==8307== Memcheck, a memory error detector ==8307== Copyright (C) 2002-2017, and GNU GPL'd, by Julian Seward et al. ==8307== Using Valgrind-3.13.0 and LibVEX; rerun with -h for copyright info ==8307== Command: kwin_x11 --crashes 20 ==8307== ==8307== Invalid read of size 4 ==8307== at 0x4E4528B: std::__atomic_base<int>::operator--() (atomic_base.h:304) ==8307== by 0xF1964A1: bool QAtomicOps<int>::deref<int>(std::atomic<int>&) (qatomic_cxx11.h:271) ==8307== by 0xF1956E9: QBasicAtomicInteger<int>::deref() (qbasicatomic.h:114) ==8307== by 0xF195795: QExplicitlySharedDataPointer<KWin::XRenderPictureData>::~QExplicitlySharedDataPointer() (qshareddata.h:165) ==8307== by 0xF1953AB: KWin::XRenderPicture::~XRenderPicture() (kwinxrenderutils.h:66) ==8307== by 0xF193E82: KWin::XRenderUtils::cleanup() (kwinxrenderutils.cpp:46) ==8307== by 0x2054F9A0: KWin::X11StandalonePlatform::~X11StandalonePlatform() (x11_platform.cpp:90) ==8307== by 0x2054F9FD: KWin::X11StandalonePlatform::~X11StandalonePlatform() (x11_platform.cpp:91) ==8307== by 0xE252284: QLibraryPrivate::unload(QLibraryPrivate::UnloadFlag) (qlibrary.cpp:562) ==8307== by 0xE25360E: cleanup (qlibrary.cpp:403) ==8307== by 0xE25360E: qlibraryCleanup() (qlibrary.cpp:427) ==8307== by 0xE2539D0: (anonymous namespace)::qlibraryCleanup_dtor_class_::~qlibraryCleanup_dtor_class_() (qlibrary.cpp:429) ==8307== by 0xEE117F1: __cxa_finalize (in /usr/lib/libc-2.26.so) ==8307== Address 0x1c978e90 is 0 bytes inside a block of size 8 free'd ==8307== at 0x4C2E64B: operator delete(void*) (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so) ==8307== by 0xF1957CD: QExplicitlySharedDataPointer<KWin::XRenderPictureData>::~QExplicitlySharedDataPointer() (qshareddata.h:165) ==8307== by 0xF1953AB: KWin::XRenderPicture::~XRenderPicture() (kwinxrenderutils.h:66) ==8307== by 0xEE117F1: __cxa_finalize (in /usr/lib/libc-2.26.so) ==8307== by 0xF193DF3: ??? (in /opt/kde5/lib64/libkwinxrenderutils.so.5.11.90) ==8307== by 0x400FBF2: _dl_fini (in /usr/lib/ld-2.26.so) ==8307== by 0xEE11487: __run_exit_handlers (in /usr/lib/libc-2.26.so) ==8307== by 0xEE114D9: exit (in /usr/lib/libc-2.26.so) ==8307== by 0x4E41226: KWin::ApplicationX11::crashChecking() (main_x11.cpp:295) ==8307== by 0x4E40E77: KWin::ApplicationX11::performStartup() (main_x11.cpp:212) ==8307== by 0x5216D39: KWin::Application::start() (main.cpp:156) ==8307== by 0x4E423D6: kdemain (main_x11.cpp:461) ==8307== Block was alloc'd at ==8307== at 0x4C2D52F: operator new(unsigned long) (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so) ==8307== by 0xF19521D: KWin::XRenderPicture::XRenderPicture(unsigned int) (kwinxrenderutils.h:103) ==8307== by 0xF194D05: __static_initialization_and_destruction_0(int, int) (kwinxrenderutils.cpp:36) ==8307== by 0xF194D5B: _GLOBAL__sub_I_kwinxrenderutils.cpp (kwinxrenderutils.cpp:296) ==8307== by 0x400F579: call_init.part.0 (in /usr/lib/ld-2.26.so) ==8307== by 0x400F685: _dl_init (in /usr/lib/ld-2.26.so) ==8307== by 0x4000F69: ??? (in /usr/lib/ld-2.26.so) ==8307== by 0x2: ??? ==8307== by 0x1FFF000552: ??? ==8307== by 0x1FFF00055B: ??? ==8307== by 0x1FFF000565: ??? ==8307== ==8307== ==8307== HEAP SUMMARY: ==8307== in use at exit: 977,074 bytes in 11,934 blocks ==8307== total heap usage: 98,322 allocs, 86,388 frees, 4,145,312,485 bytes allocated ==8307== ==8307== LEAK SUMMARY: ==8307== definitely lost: 280 bytes in 2 blocks ==8307== indirectly lost: 56 bytes in 3 blocks ==8307== possibly lost: 1,752 bytes in 19 blocks ==8307== still reachable: 974,986 bytes in 11,910 blocks ==8307== of which reachable via heuristic: ==8307== newarray : 1,712 bytes in 21 blocks ==8307== suppressed: 0 bytes in 0 blocks ==8307== Rerun with --leak-check=full to see details of leaked memory ==8307== ==8307== For counts of detected and suppressed errors, rerun with: -v ==8307== ERROR SUMMARY: 3 errors from 1 contexts (suppressed: 0 from 0) -- You are receiving this mail because: You are watching all bug changes.