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Crash after closing the last of multiple windows in --single-process mode #1898

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gunterkoenigsmann opened this issue Mar 5, 2024 · 9 comments
Open

Crash after closing the last of multiple windows in --single-process mode #1898

gunterkoenigsmann opened this issue Mar 5, 2024 · 9 comments

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@gunterkoenigsmann
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Backtrace:

==596973== Invalid read of size 8
==596973==    at 0x5795E70: pubsync (streambuf:278)
==596973==    by 0x5795E70: std::ostream::flush() (ostream.tcc:237)
==596973==    by 0x5713715: std::ios_base::Init::~Init() (ios_init.cc:134)
==596973==    by 0x5A21371: __cxa_finalize (cxa_finalize.c:82)
==596973==    by 0x56FCAD6: ??? (in /usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.33)
==596973==    by 0x40010F1: _dl_call_fini (dl-call_fini.c:43)
==596973==    by 0x4005577: _dl_fini (dl-fini.c:114)
==596973==    by 0x5A21A65: __run_exit_handlers (exit.c:108)
==596973==    by 0x5A21BAD: exit (exit.c:138)
==596973==    by 0x5A041D0: (below main) (libc_start_call_main.h:74)
==596973==  Address 0x151fcfe8 is 712 bytes inside an unallocated block of size 1,776 in arena "client"
==596973== 
==596973== Invalid read of size 8
==596973==    at 0x5795E70: pubsync (streambuf:278)
==596973==    by 0x5795E70: std::ostream::flush() (ostream.tcc:237)
==596973==    by 0x579600F: std::ostream::sentry::sentry(std::ostream&) (ostream.tcc:52)
==596973==    by 0x5795E5A: std::ostream::flush() (ostream.tcc:231)
==596973==    by 0x5713721: std::ios_base::Init::~Init() (ios_init.cc:135)
==596973==    by 0x5A21371: __cxa_finalize (cxa_finalize.c:82)
==596973==    by 0x56FCAD6: ??? (in /usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.33)
==596973==    by 0x40010F1: _dl_call_fini (dl-call_fini.c:43)
==596973==    by 0x4005577: _dl_fini (dl-fini.c:114)
==596973==    by 0x5A21A65: __run_exit_handlers (exit.c:108)
==596973==    by 0x5A21BAD: exit (exit.c:138)
==596973==    by 0x5A041D0: (below main) (libc_start_call_main.h:74)
==596973==  Address 0x151fcfe8 is 712 bytes inside an unallocated block of size 1,776 in arena "client"
==596973== 
==596973==

std::ios_base is used for internal housekeeping of c++ streams: https://en.cppreference.com/w/cpp/io/ios_base/Init

Possible reasons for this crash:

  • Something overwrites an internal pointer of libstdc++ in a way that it points to the wrong location on exiting the program. Argument against it: This error follows us for years. It is inprobable that we always manage to overwrite the exact memory location this pointer is in while the rest seems to work.
  • Linking with concurring libraries: https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=236344
  • Some library wxMaxima uses creates that internal object too late - which means it is destroyed too early
@gunterkoenigsmann
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The libraries my wxMaxima is linked with according to ldd:

        linux-vdso.so.1 (0x00007ffeab1aa000)
        libwx_gtk3u_richtext-3.2.so.0 => /lib/x86_64-linux-gnu/libwx_gtk3u_richtext-3.2.so.0 (0x00007750b3000000)
        libwx_gtk3u_aui-3.2.so.0 => /lib/x86_64-linux-gnu/libwx_gtk3u_aui-3.2.so.0 (0x00007750b3cd4000)
        libwx_gtk3u_webview-3.2.so.0 => /lib/x86_64-linux-gnu/libwx_gtk3u_webview-3.2.so.0 (0x00007750b3ca7000)
        libwx_gtk3u_core-3.2.so.0 => /lib/x86_64-linux-gnu/libwx_gtk3u_core-3.2.so.0 (0x00007750b2600000)
        libwx_baseu_xml-3.2.so.0 => /lib/x86_64-linux-gnu/libwx_baseu_xml-3.2.so.0 (0x00007750b3c93000)
        libwx_baseu_net-3.2.so.0 => /lib/x86_64-linux-gnu/libwx_baseu_net-3.2.so.0 (0x00007750b3c3a000)
        libwx_baseu-3.2.so.0 => /lib/x86_64-linux-gnu/libwx_baseu-3.2.so.0 (0x00007750b2200000)
        libstdc++.so.6 => /lib/x86_64-linux-gnu/libstdc++.so.6 (0x00007750b1e00000)
        libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007750b3317000)
        libgcc_s.so.1 => /lib/x86_64-linux-gnu/libgcc_s.so.1 (0x00007750b3c0d000)
        libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007750b1a00000)
        libwx_gtk3u_html-3.2.so.0 => /lib/x86_64-linux-gnu/libwx_gtk3u_html-3.2.so.0 (0x00007750b324a000)
        libgtk-3.so.0 => /lib/x86_64-linux-gnu/libgtk-3.so.0 (0x00007750b1200000)
        libgdk-3.so.0 => /lib/x86_64-linux-gnu/libgdk-3.so.0 (0x00007750b2f05000)
        libgobject-2.0.so.0 => /lib/x86_64-linux-gnu/libgobject-2.0.so.0 (0x00007750b2ea2000)
        libgio-2.0.so.0 => /lib/x86_64-linux-gnu/libgio-2.0.so.0 (0x00007750b1c32000)
        libglib-2.0.so.0 => /lib/x86_64-linux-gnu/libglib-2.0.so.0 (0x00007750b24b7000)
        libwebkit2gtk-4.1.so.0 => /lib/x86_64-linux-gnu/libwebkit2gtk-4.1.so.0 (0x00007750aca00000)
        libjavascriptcoregtk-4.1.so.0 => /lib/x86_64-linux-gnu/libjavascriptcoregtk-4.1.so.0 (0x00007750aae00000)
        libpangocairo-1.0.so.0 => /lib/x86_64-linux-gnu/libpangocairo-1.0.so.0 (0x00007750b3bf8000)
        libpango-1.0.so.0 => /lib/x86_64-linux-gnu/libpango-1.0.so.0 (0x00007750b2e37000)
        libcairo.so.2 => /lib/x86_64-linux-gnu/libcairo.so.2 (0x00007750b20b9000)
        libgdk_pixbuf-2.0.so.0 => /lib/x86_64-linux-gnu/libgdk_pixbuf-2.0.so.0 (0x00007750b321c000)
        libX11.so.6 => /lib/x86_64-linux-gnu/libX11.so.6 (0x00007750aacc2000)
        libSM.so.6 => /lib/x86_64-linux-gnu/libSM.so.6 (0x00007750b3beb000)
        libxkbcommon.so.0 => /lib/x86_64-linux-gnu/libxkbcommon.so.0 (0x00007750b246e000)
        libnotify.so.4 => /lib/x86_64-linux-gnu/libnotify.so.4 (0x00007750b3bde000)
        libXtst.so.6 => /lib/x86_64-linux-gnu/libXtst.so.6 (0x00007750b3bd4000)
        libpangoft2-1.0.so.0 => /lib/x86_64-linux-gnu/libpangoft2-1.0.so.0 (0x00007750b2454000)
        libfontconfig.so.1 => /lib/x86_64-linux-gnu/libfontconfig.so.1 (0x00007750b11af000)
        libpng16.so.16 => /lib/x86_64-linux-gnu/libpng16.so.16 (0x00007750b2081000)
        libjpeg.so.8 => /lib/x86_64-linux-gnu/libjpeg.so.8 (0x00007750b112c000)
        libtiff.so.6 => /lib/x86_64-linux-gnu/libtiff.so.6 (0x00007750ac973000)
        libexpat.so.1 => /lib/x86_64-linux-gnu/libexpat.so.1 (0x00007750b19d5000)
        libcurl.so.4 => /lib/x86_64-linux-gnu/libcurl.so.4 (0x00007750aac01000)
        libz.so.1 => /lib/x86_64-linux-gnu/libz.so.1 (0x00007750b1c13000)
        liblzma.so.5 => /lib/x86_64-linux-gnu/liblzma.so.5 (0x00007750b10fa000)
        libpcre2-32.so.0 => /lib/x86_64-linux-gnu/libpcre2-32.so.0 (0x00007750aab7b000)
        /lib64/ld-linux-x86-64.so.2 (0x00007750b3da9000)
        libgmodule-2.0.so.0 => /lib/x86_64-linux-gnu/libgmodule-2.0.so.0 (0x00007750b3215000)
        libharfbuzz.so.0 => /lib/x86_64-linux-gnu/libharfbuzz.so.0 (0x00007750aaa6e000)
        libfribidi.so.0 => /lib/x86_64-linux-gnu/libfribidi.so.0 (0x00007750ac955000)
        libcairo-gobject.so.2 => /lib/x86_64-linux-gnu/libcairo-gobject.so.2 (0x00007750b320a000)
        libatk-1.0.so.0 => /lib/x86_64-linux-gnu/libatk-1.0.so.0 (0x00007750aaa45000)
        libepoxy.so.0 => /lib/x86_64-linux-gnu/libepoxy.so.0 (0x00007750aa910000)
        libXi.so.6 => /lib/x86_64-linux-gnu/libXi.so.6 (0x00007750aa8fd000)
        libatk-bridge-2.0.so.0 => /lib/x86_64-linux-gnu/libatk-bridge-2.0.so.0 (0x00007750aa8c1000)
        libXfixes.so.3 => /lib/x86_64-linux-gnu/libXfixes.so.3 (0x00007750b244c000)
        libwayland-client.so.0 => /lib/x86_64-linux-gnu/libwayland-client.so.0 (0x00007750ac944000)
        libwayland-cursor.so.0 => /lib/x86_64-linux-gnu/libwayland-cursor.so.0 (0x00007750b19cb000)
        libwayland-egl.so.1 => /lib/x86_64-linux-gnu/libwayland-egl.so.1 (0x00007750b3205000)
        libXext.so.6 => /lib/x86_64-linux-gnu/libXext.so.6 (0x00007750aa8ac000)
        libXcursor.so.1 => /lib/x86_64-linux-gnu/libXcursor.so.1 (0x00007750aa8a0000)
        libXdamage.so.1 => /lib/x86_64-linux-gnu/libXdamage.so.1 (0x00007750b2e32000)
        libXcomposite.so.1 => /lib/x86_64-linux-gnu/libXcomposite.so.1 (0x00007750b19c6000)
        libXrandr.so.2 => /lib/x86_64-linux-gnu/libXrandr.so.2 (0x00007750aa893000)
        libXinerama.so.1 => /lib/x86_64-linux-gnu/libXinerama.so.1 (0x00007750aa88e000)
        libffi.so.8 => /lib/x86_64-linux-gnu/libffi.so.8 (0x00007750aa882000)
        libmount.so.1 => /lib/x86_64-linux-gnu/libmount.so.1 (0x00007750aa835000)
        libselinux.so.1 => /lib/x86_64-linux-gnu/libselinux.so.1 (0x00007750aa808000)
        libpcre2-8.so.0 => /lib/x86_64-linux-gnu/libpcre2-8.so.0 (0x00007750aa76d000)
        libdrm.so.2 => /lib/x86_64-linux-gnu/libdrm.so.2 (0x00007750aa756000)
        libicui18n.so.74 => /lib/x86_64-linux-gnu/libicui18n.so.74 (0x00007750aa400000)
        libsystemd.so.0 => /lib/x86_64-linux-gnu/libsystemd.so.0 (0x00007750aa321000)
        libicuuc.so.74 => /lib/x86_64-linux-gnu/libicuuc.so.74 (0x00007750aa000000)
        libxml2.so.2 => /lib/x86_64-linux-gnu/libxml2.so.2 (0x00007750a9e1e000)
        libsqlite3.so.0 => /lib/x86_64-linux-gnu/libsqlite3.so.0 (0x00007750a9cb6000)
        libxslt.so.1 => /lib/x86_64-linux-gnu/libxslt.so.1 (0x00007750aa2e0000)
        liblcms2.so.2 => /lib/x86_64-linux-gnu/liblcms2.so.2 (0x00007750aa27d000)
        libwoff2dec.so.1.0.2 => /lib/x86_64-linux-gnu/libwoff2dec.so.1.0.2 (0x00007750aa271000)
        libfreetype.so.6 => /lib/x86_64-linux-gnu/libfreetype.so.6 (0x00007750a9bea000)
        libharfbuzz-icu.so.0 => /lib/x86_64-linux-gnu/libharfbuzz-icu.so.0 (0x00007750aa751000)
        libgcrypt.so.20 => /lib/x86_64-linux-gnu/libgcrypt.so.20 (0x00007750a9aa2000)
        libgstallocators-1.0.so.0 => /lib/x86_64-linux-gnu/libgstallocators-1.0.so.0 (0x00007750aa26a000)
        libgstapp-1.0.so.0 => /lib/x86_64-linux-gnu/libgstapp-1.0.so.0 (0x00007750aa255000)
        libgstbase-1.0.so.0 => /lib/x86_64-linux-gnu/libgstbase-1.0.so.0 (0x00007750a9a1e000)
        libgstreamer-1.0.so.0 => /lib/x86_64-linux-gnu/libgstreamer-1.0.so.0 (0x00007750a98ce000)
        libgstpbutils-1.0.so.0 => /lib/x86_64-linux-gnu/libgstpbutils-1.0.so.0 (0x00007750aa211000)
        libgstaudio-1.0.so.0 => /lib/x86_64-linux-gnu/libgstaudio-1.0.so.0 (0x00007750a984e000)
        libgsttag-1.0.so.0 => /lib/x86_64-linux-gnu/libgsttag-1.0.so.0 (0x00007750a980d000)
        libgstvideo-1.0.so.0 => /lib/x86_64-linux-gnu/libgstvideo-1.0.so.0 (0x00007750a9741000)
        libgstgl-1.0.so.0 => /lib/x86_64-linux-gnu/libgstgl-1.0.so.0 (0x00007750a96ba000)
        libgstfft-1.0.so.0 => /lib/x86_64-linux-gnu/libgstfft-1.0.so.0 (0x00007750a96af000)
        libopenjp2.so.7 => /lib/x86_64-linux-gnu/libopenjp2.so.7 (0x00007750a964f000)
        libwebpdemux.so.2 => /lib/x86_64-linux-gnu/libwebpdemux.so.2 (0x00007750a9648000)
        libwebp.so.7 => /lib/x86_64-linux-gnu/libwebp.so.7 (0x00007750a95cd000)
        libsoup-3.0.so.0 => /lib/x86_64-linux-gnu/libsoup-3.0.so.0 (0x00007750a9534000)
        libenchant-2.so.2 => /lib/x86_64-linux-gnu/libenchant-2.so.2 (0x00007750a9527000)
        libsecret-1.so.0 => /lib/x86_64-linux-gnu/libsecret-1.so.0 (0x00007750a94c9000)
        libtasn1.so.6 => /lib/x86_64-linux-gnu/libtasn1.so.6 (0x00007750a94b2000)
        libhyphen.so.0 => /lib/x86_64-linux-gnu/libhyphen.so.0 (0x00007750a94ab000)
        libwayland-server.so.0 => /lib/x86_64-linux-gnu/libwayland-server.so.0 (0x00007750a9495000)
        libmanette-0.2.so.0 => /lib/x86_64-linux-gnu/libmanette-0.2.so.0 (0x00007750a9465000)
        libseccomp.so.2 => /lib/x86_64-linux-gnu/libseccomp.so.2 (0x00007750a9445000)
        libgbm.so.1 => /lib/x86_64-linux-gnu/libgbm.so.1 (0x00007750a9434000)
        libatomic.so.1 => /lib/x86_64-linux-gnu/libatomic.so.1 (0x00007750a942a000)
        libthai.so.0 => /lib/x86_64-linux-gnu/libthai.so.0 (0x00007750a941d000)
        libXrender.so.1 => /lib/x86_64-linux-gnu/libXrender.so.1 (0x00007750a9410000)
        libxcb.so.1 => /lib/x86_64-linux-gnu/libxcb.so.1 (0x00007750a93e6000)
        libxcb-render.so.0 => /lib/x86_64-linux-gnu/libxcb-render.so.0 (0x00007750a93d8000)
        libxcb-shm.so.0 => /lib/x86_64-linux-gnu/libxcb-shm.so.0 (0x00007750a93d3000)
        libpixman-1.so.0 => /lib/x86_64-linux-gnu/libpixman-1.so.0 (0x00007750a9325000)
        libICE.so.6 => /lib/x86_64-linux-gnu/libICE.so.6 (0x00007750a9308000)
        libuuid.so.1 => /lib/x86_64-linux-gnu/libuuid.so.1 (0x00007750a92fe000)
        libzstd.so.1 => /lib/x86_64-linux-gnu/libzstd.so.1 (0x00007750a9247000)
        libLerc.so.4 => /lib/x86_64-linux-gnu/libLerc.so.4 (0x00007750a91c0000)
        libjbig.so.0 => /lib/x86_64-linux-gnu/libjbig.so.0 (0x00007750a91ad000)
        libdeflate.so.0 => /lib/x86_64-linux-gnu/libdeflate.so.0 (0x00007750a919a000)
        libnghttp2.so.14 => /lib/x86_64-linux-gnu/libnghttp2.so.14 (0x00007750a916f000)
        libidn2.so.0 => /lib/x86_64-linux-gnu/libidn2.so.0 (0x00007750a914d000)
        librtmp.so.1 => /lib/x86_64-linux-gnu/librtmp.so.1 (0x00007750a912e000)
        libssh.so.4 => /lib/x86_64-linux-gnu/libssh.so.4 (0x00007750a90bb000)
        libpsl.so.5 => /lib/x86_64-linux-gnu/libpsl.so.5 (0x00007750a90a7000)
        libssl.so.3 => /lib/x86_64-linux-gnu/libssl.so.3 (0x00007750a9002000)
        libcrypto.so.3 => /lib/x86_64-linux-gnu/libcrypto.so.3 (0x00007750a8a00000)
        libgssapi_krb5.so.2 => /lib/x86_64-linux-gnu/libgssapi_krb5.so.2 (0x00007750a8fae000)
        libldap.so.2 => /lib/x86_64-linux-gnu/libldap.so.2 (0x00007750a8f51000)
        liblber.so.2 => /lib/x86_64-linux-gnu/liblber.so.2 (0x00007750a8f3f000)
        libbrotlidec.so.1 => /lib/x86_64-linux-gnu/libbrotlidec.so.1 (0x00007750a8f31000)
        libgraphite2.so.3 => /lib/x86_64-linux-gnu/libgraphite2.so.3 (0x00007750a8f0b000)
        libatspi.so.0 => /lib/x86_64-linux-gnu/libatspi.so.0 (0x00007750a89c8000)
        libdbus-1.so.3 => /lib/x86_64-linux-gnu/libdbus-1.so.3 (0x00007750a8979000)
        libblkid.so.1 => /lib/x86_64-linux-gnu/libblkid.so.1 (0x00007750a893e000)
        libcap.so.2 => /lib/x86_64-linux-gnu/libcap.so.2 (0x00007750a8efc000)
        liblz4.so.1 => /lib/x86_64-linux-gnu/liblz4.so.1 (0x00007750a891b000)
        libicudata.so.74 => /lib/x86_64-linux-gnu/libicudata.so.74 (0x00007750a6a00000)
        libwoff2common.so.1.0.2 => /lib/x86_64-linux-gnu/libwoff2common.so.1.0.2 (0x00007750a8916000)
        libbz2.so.1.0 => /lib/x86_64-linux-gnu/libbz2.so.1.0 (0x00007750a8900000)
        libgpg-error.so.0 => /lib/x86_64-linux-gnu/libgpg-error.so.0 (0x00007750a88db000)
        libunwind.so.8 => /lib/x86_64-linux-gnu/libunwind.so.8 (0x00007750a88bf000)
        libdw.so.1 => /lib/x86_64-linux-gnu/libdw.so.1 (0x00007750a880c000)
        liborc-0.4.so.0 => /lib/x86_64-linux-gnu/liborc-0.4.so.0 (0x00007750a8773000)
        libGL.so.1 => /lib/x86_64-linux-gnu/libGL.so.1 (0x00007750a6979000)
        libEGL.so.1 => /lib/x86_64-linux-gnu/libEGL.so.1 (0x00007750a6966000)
        libX11-xcb.so.1 => /lib/x86_64-linux-gnu/libX11-xcb.so.1 (0x00007750a876c000)
        libgudev-1.0.so.0 => /lib/x86_64-linux-gnu/libgudev-1.0.so.0 (0x00007750a6958000)
        libsharpyuv.so.0 => /lib/x86_64-linux-gnu/libsharpyuv.so.0 (0x00007750a8764000)
        libevdev.so.2 => /lib/x86_64-linux-gnu/libevdev.so.2 (0x00007750a693a000)
        libxcb-randr.so.0 => /lib/x86_64-linux-gnu/libxcb-randr.so.0 (0x00007750a6928000)
        libdatrie.so.1 => /lib/x86_64-linux-gnu/libdatrie.so.1 (0x00007750a691f000)
        libXau.so.6 => /lib/x86_64-linux-gnu/libXau.so.6 (0x00007750a6919000)
        libXdmcp.so.6 => /lib/x86_64-linux-gnu/libXdmcp.so.6 (0x00007750a6911000)
        libbsd.so.0 => /lib/x86_64-linux-gnu/libbsd.so.0 (0x00007750a68fb000)
        libunistring.so.5 => /lib/x86_64-linux-gnu/libunistring.so.5 (0x00007750a674e000)
        libgnutls.so.30 => /lib/x86_64-linux-gnu/libgnutls.so.30 (0x00007750a6555000)
        libhogweed.so.6 => /lib/x86_64-linux-gnu/libhogweed.so.6 (0x00007750a650c000)
        libnettle.so.8 => /lib/x86_64-linux-gnu/libnettle.so.8 (0x00007750a64b7000)
        libgmp.so.10 => /lib/x86_64-linux-gnu/libgmp.so.10 (0x00007750a6430000)
        libkrb5.so.3 => /lib/x86_64-linux-gnu/libkrb5.so.3 (0x00007750a6367000)
        libk5crypto.so.3 => /lib/x86_64-linux-gnu/libk5crypto.so.3 (0x00007750a633b000)
        libcom_err.so.2 => /lib/x86_64-linux-gnu/libcom_err.so.2 (0x00007750a6335000)
        libkrb5support.so.0 => /lib/x86_64-linux-gnu/libkrb5support.so.0 (0x00007750a6328000)
        libsasl2.so.2 => /lib/x86_64-linux-gnu/libsasl2.so.2 (0x00007750a630c000)
        libbrotlicommon.so.1 => /lib/x86_64-linux-gnu/libbrotlicommon.so.1 (0x00007750a62e9000)
        libelf.so.1 => /lib/x86_64-linux-gnu/libelf.so.1 (0x00007750a62cc000)
        libGLdispatch.so.0 => /lib/x86_64-linux-gnu/libGLdispatch.so.0 (0x00007750a6214000)
        libGLX.so.0 => /lib/x86_64-linux-gnu/libGLX.so.0 (0x00007750a61e1000)
        libudev.so.1 => /lib/x86_64-linux-gnu/libudev.so.1 (0x00007750a61ac000)
        libmd.so.0 => /lib/x86_64-linux-gnu/libmd.so.0 (0x00007750a619d000)
        libp11-kit.so.0 => /lib/x86_64-linux-gnu/libp11-kit.so.0 (0x00007750a5ff9000)
        libkeyutils.so.1 => /lib/x86_64-linux-gnu/libkeyutils.so.1 (0x00007750a5ff2000)
        libresolv.so.2 => /lib/x86_64-linux-gnu/libresolv.so.2 (0x00007750a5fdf000)

@gunterkoenigsmann
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Resolved with 8cea574

@gunterkoenigsmann
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  • Seems it isn't the ordering in which wxWidgets modules are linked
  • Compiling our own wxWidgets seems not to solve this problem
  • wxWidgets current git head seems not to solve this problem

@gunterkoenigsmann
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Tried a git bisect but to no avail: All versions that are new enough to work on my system either seem to crash even earlier or according to valgrind show this bug, even if it has no symptoms.

@gunterkoenigsmann
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Today's backtrace reads:

#0  0x00007ffff6b50e73 in std::basic_streambuf<char, std::char_traits<char> >::pubsync
    (this=0x555556208848)
    at /build/gcc-14-kKbQBI/gcc-14-14-20240303/build/x86_64-linux-gnu/libstdc++-v3/include/streambuf:278
#1  std::basic_ostream<char, std::char_traits<char> >::flush (this=0x555555d5c940 <std::cout@GLIBCXX_3.4>)
    at /build/gcc-14-kKbQBI/gcc-14-14-20240303/build/x86_64-linux-gnu/libstdc++-v3/include/bits/ostream.tcc:237
#2  0x00007ffff6ace716 in std::ios_base::Init::~Init (this=<optimized out>, __in_chrg=<optimized out>)
    at ../../../../../src/libstdc++-v3/src/c++98/ios_init.cc:134
#3  0x00007ffff6647372 in __cxa_finalize (d=0x7ffff6c78100) at ./stdlib/cxa_finalize.c:82
#4  0x00007ffff6ab7ad7 in __do_global_dtors_aux () at /lib/x86_64-linux-gnu/libstdc++.so.6
#5  0x00007fffffffd220 in ??? ()
#6  0x00007ffff7fc60f2 in _dl_call_fini (closure_map=0x7ffff7e56ab0) at ./elf/dl-call_fini.c:43

__do_global_dtors_aux would point to call the destructor of a static variable near the end of the process of closing the program.

@gunterkoenigsmann gunterkoenigsmann mentioned this issue Mar 20, 2024
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@gunterkoenigsmann
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asan seems to unable to find this issue which might mean that it really is a crash in a destructor of a static object: asan works mainly on dynamically created stuff.

@gunterkoenigsmann
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Switching to gcc-14 and enabling -Wall -Wextra -D_FORTIFY_SOURCE=3 -D_GLIBCXX_ASSERTIONS -ftrivial-auto-var-init=pattern -fPIE -pie -Wl,-z,relro,-z,now -fstack-protector-strong -fstack-clash-protection -fcf-protection=full resulted in no new information:

0x00007ffff6b50e73 in std::basic_streambuf<char, std::char_traits<char> >::pubsync (this=0x555556205c08)    
    at /build/gcc-14-kKbQBI/gcc-14-14-20240303/build/x86_64-linux-gnu/libstdc++-v3/include/streambuf:278
warning: 278    /build/gcc-14-kKbQBI/gcc-14-14-20240303/build/x86_64-linux-gnu/libstdc++-v3/include/streambuf: No such file or directory
(gdb) backtrace 
#0  0x00007ffff6b50e73 in std::basic_streambuf<char, std::char_traits<char> >::pubsync
    (this=0x555556205c08)
    at /build/gcc-14-kKbQBI/gcc-14-14-20240303/build/x86_64-linux-gnu/libstdc++-v3/include/streambuf:278
#1  std::basic_ostream<char, std::char_traits<char> >::flush (this=0x555555d3c900 <std::cout@GLIBCXX_3.4>)
    at /build/gcc-14-kKbQBI/gcc-14-14-20240303/build/x86_64-linux-gnu/libstdc++-v3/include/bits/ostream.tcc:237
#2  0x00007ffff6ace716 in std::ios_base::Init::~Init (this=<optimized out>, __in_chrg=<optimized out>)
    at ../../../../../src/libstdc++-v3/src/c++98/ios_init.cc:134
#3  0x00007ffff6647372 in __cxa_finalize (d=0x7ffff6c78100) at ./stdlib/cxa_finalize.c:82
#4  0x00007ffff6ab7ad7 in __do_global_dtors_aux () at /lib/x86_64-linux-gnu/libstdc++.so.6
#5  0x00007fffffffd220 in ??? ()
#6  0x00007ffff7fc60f2 in _dl_call_fini (closure_map=0x7ffff7e55ab0) at ./elf/dl-call_fini.c:43

@gunterkoenigsmann
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Fun fact: According to gdb wxMaxima creates exactly 2 Standard C++ streams in the teststep it sometimes crashes in. My guess would be: One for stdout and one for stderr. Flushing those on exiting wxMaxima doesn't crash, though...

@gunterkoenigsmann
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Ok... ...according to valgrind the memory corruption that can cause the crash

  • only appears in --single_process mode when multiple windows are handled by the same wxMaxima process.
  • happens on closing the last window, but only if the first window that was opened was closed first.
  • still happens, if the worksheets are all completely empty => nothing in cells/ is involved in the crash.
  • still happens, if none of the sidebars are created => nothing in sidebars/ is involved in the crash
  • still happens, if no dialogues are used => nothing in dialogs/ is involved in the crash
  • still happens, if we don't create background threads => no race condition here is the cause of the crash
  • happens with two wxWidgets versions, two gcc versions,
  • seems to be quite robust: If I move code around we still get exactly the same crash.

Seems like we can rule out quite a bit of things.

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