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

gunterkoenigsmann commented 3 months ago

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 commented 3 months ago

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 commented 3 months ago

Resolved with 8cea574c8b0ed4ef8935073898fd3cf390ad0fda

gunterkoenigsmann commented 3 months ago

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 commented 3 months ago

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 commented 3 months ago

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 commented 3 months ago

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 commented 3 months ago

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 commented 3 months ago

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 commented 3 months ago

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.

wxMaxima-developers / wxmaxima

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