Re: Possible regression in shm handling [SOLVED]

Nice catch.

Might be helpful to post this as a bug report to the glib project. So they can make their software more resilient.

Regards,
Ronald.

 
Van: Ellen Emilia Anna Zscheile <fogti+fbsd@ytrizja.de>
Datum:donderdag, 12 juni 2025 00:43
Aan:freebsd-stable@freebsd.org
Onderwerp:Re: Possible regression in shm handling [SOLVED]
> 
> I managed to find the problem:
> 
> ```
> .@.:~/.config/glib-2.0/settings/ > diff keyfile ~/tmp/.config/glib-2.0/settings/keyfile
> 2,3c2,3
> < window-position=(20, 20)
> < window-size=(679, 687)
> ---
>  > window-position=(26, 23)
>  > window-size=(4092044, 2046032)
> 9c9
> < sidebar-width=157
> ---
>  > sidebar-width=224
> .@.:~/ > cat ~/.config/glib-2.0/settings/keyfile
> [org/gtk/settings/file-chooser]
> window-position=(20, 20)
> window-size=(679, 687)
> date-format='regular'
> location-mode='path-bar'
> show-hidden=false
> show-size-column=true
> show-type-column=true
> sidebar-width=157
> sort-column='name'
> sort-directories-first=false
> sort-order='ascending'
> type-format='category'
> ```
> 
> The file chooser tried to use an impossibly large window size,
> which subsequently caused it to try to allocate an extremely large shared memory
> blob (roughly on the order of terabytes, afaik) for the window buffer.
> 
> Regards,
> Ellen Zscheile
> 
> 11/6/25 22:38, / Ellen Emilia Anna Zscheile :
> > Hi,
> >
> > I managed to "reduce" the failure to
> >
> > ```
> > .@.:~/ > zenity --file-selection
> >
> > (zenity:1820): Gdk-WARNING **: 22:35:14.111: Native Windows wider than > 65535 pixels are not supported
> >
> > (zenity:1820): Gdk-WARNING **: 22:35:14.112: Native Windows taller > than 65535 pixels are not supported
> >
> > (zenity:1820): Gdk-CRITICAL **: 22:35:14.303: > ../gdk/wayland/gdkdisplay-wayland.c:1372: Truncating shared memory > file failed: Invalid argument
> > zsh: segmentation fault (core dumped)  zenity --file-selection
> > ```
> > with backtrace:
> > ```
> > (gdb) bt
> > #0  0x000000080197b3a4 in wl_proxy_get_version () at > /usr/local/lib/libwayland-client.so.0
> > #1  0x00000008003067f7 in ??? () at /usr/local/lib/libgdk-3.so.0
> > #2  0x00000008003165af in ??? () at /usr/local/lib/libgdk-3.so.0
> > #3  0x00000008003149c9 in ??? () at /usr/local/lib/libgdk-3.so.0
> > #4  0x00000008002ea6a2 in ??? () at /usr/local/lib/libgdk-3.so.0
> > #5  0x00000008002eabce in gdk_window_begin_draw_frame () at > /usr/local/lib/libgdk-3.so.0
> > #6  0x0000000800afd71b in ??? () at /usr/local/lib/libgtk-3.so.0
> > #7  0x0000000800998de3 in gtk_main_do_event () at > /usr/local/lib/libgtk-3.so.0
> > #8  0x00000008002d98b1 in ??? () at /usr/local/lib/libgdk-3.so.0
> > #9  0x00000008002eb7de in ??? () at /usr/local/lib/libgdk-3.so.0
> > #10 0x00000008002ebdaa in ??? () at /usr/local/lib/libgdk-3.so.0
> > #11 0x00000008002ec028 in ??? () at /usr/local/lib/libgdk-3.so.0
> > #12 0x0000000800c1cf24 in ??? () at /usr/local/lib/libgobject-2.0.so.0
> > #13 0x0000000800c36082 in ??? () at /usr/local/lib/libgobject-2.0.so.0
> > #14 0x0000000800c36bbc in g_signal_emit () at > /usr/local/lib/libgobject-2.0.so.0
> > #15 0x00000008002e2fbf in ??? () at /usr/local/lib/libgdk-3.so.0
> > #16 0x00000008002cd832 in ??? () at /usr/local/lib/libgdk-3.so.0
> > #17 0x0000000800d39a41 in ??? () at /usr/local/lib/libglib-2.0.so.0
> > #18 0x0000000800d3e241 in ??? () at /usr/local/lib/libglib-2.0.so.0
> > #19 0x0000000800d3e6c7 in ??? () at /usr/local/lib/libglib-2.0.so.0
> > #20 0x0000000800d3e9e9 in g_main_loop_run () at > /usr/local/lib/libglib-2.0.so.0
> > #21 0x000000080099856a in gtk_main () at /usr/local/lib/libgtk-3.so.0
> > ```
> >
> > Regards,
> > Ellen Zscheile
> >
> > 11/6/25 17:52, / Ellen Emilia Anna Zscheile :
> >> Hi,
> >>
> >> after upgrading my system from
> >> FreeBSD 14.3-PRERELEASE stable/14-n271240-62c010b6514b GENERIC
> >> to
> >> FreeBSD 14.3-STABLE stable/14-n271620-b53120be1656 GENERIC
> >>
> >> I noticed that firefox now reliably crashes (closing the firefox >> window, and the process appears to abort with SIGSEGV)
> >> when trying to open a file upload dialog when using sway
> >> (forcing firefox to use X11 by setting `WAYLAND_DISPLAY=`makes the >> whole session hang).
> >>
> >> Ports packages involved:
> >> drm-61-kmod-6.1.128.1403501_4
> >> firefox-139.0.1_1,2 (but also happens with firefox-esr)
> >> glib-2.84.1_2,2
> >> gtk3-3.24.49
> >> sway-1.11.r4
> >>
> >> Firefox log output is always something like:
> >> ```
> >> [Parent 1609, Main Thread] WARNING: Native Windows wider than 65535 >> pixels are not supported: 'glib warning', file >> /wrkdirs/usr/ports/www/firefox/work/firefox-139.0.1/toolkit/xre/nsSigHandlers.cpp:201
> >>
> >> (firefox:1609): Gdk-WARNING **: 17:37:32.563: Native Windows wider >> than 65535 pixels are not supported
> >> [Parent 1609, Main Thread] WARNING: Native Windows taller than 65535 >> pixels are not supported: 'glib warning', file >> /wrkdirs/usr/ports/www/firefox/work/firefox-139.0.1/toolkit/xre/nsSigHandlers.cpp:201
> >>
> >> (firefox:1609): Gdk-WARNING **: 17:37:32.563: Native Windows taller >> than 65535 pixels are not supported
> >> [Parent 1609, Main Thread] WARNING: >> ../gdk/wayland/gdkdisplay-wayland.c:1372: Truncating shared memory >> file failed: Invalid argument: 'glib warning', file >> /wrkdirs/usr/ports/www/firefox/work/firefox-139.0.1/toolkit/xre/nsSigHandlers.cpp:201
> >>
> >> (firefox:1609): Gdk-CRITICAL **: 17:37:32.702: >> ../gdk/wayland/gdkdisplay-wayland.c:1372: Truncating shared memory >> file failed: Invalid argument
> >> console.warn: LoginRecipes: "Falling back to a synchronous message >> for: file://."
> >> Exiting due to channel error.
> >> Exiting due to channel error.
> >> Exiting due to channel error.
> >> Exiting due to channel error.
> >> Exiting due to channel error.
> >> Exiting due to channel error.
> >> Exiting due to channel error.
> >> Exiting due to channel error.
> >> Exiting due to channel error.
> >> Exiting due to channel error.
> >> Exiting due to channel error.
> >> Exiting due to channel error.
> >> zsh: segmentation fault (core dumped)  firefox
> >> ```
> >>
> >> backtrace:
> >> ```
> >> (gdb) bt
> >> #0  0x0000000803eaf3a4 in wl_proxy_get_version () at >> /usr/local/lib/libwayland-client.so.0
> >> #1  0x00000008034987f7 in ??? () at /usr/local/lib/libgdk-3.so.0
> >> #2  0x00000008034a85af in ??? () at /usr/local/lib/libgdk-3.so.0
> >> #3  0x00000008034a69c9 in ??? () at /usr/local/lib/libgdk-3.so.0
> >> #4  0x000000080347c6a2 in ??? () at /usr/local/lib/libgdk-3.so.0
> >> #5  0x000000080347cbce in gdk_window_begin_draw_frame () at >> /usr/local/lib/libgdk-3.so.0
> >> #6  0x00000008032fd71b in ??? () at /usr/local/lib/libgtk-3.so.0
> >> #7  0x0000000803198de3 in gtk_main_do_event () at >> /usr/local/lib/libgtk-3.so.0
> >> #8  0x000000080346b8b1 in ??? () at /usr/local/lib/libgdk-3.so.0
> >> #9  0x000000080347d7de in ??? () at /usr/local/lib/libgdk-3.so.0
> >> #10 0x000000080347ddaa in ??? () at /usr/local/lib/libgdk-3.so.0
> >> #11 0x000000080347e028 in ??? () at /usr/local/lib/libgdk-3.so.0
> >> #12 0x0000000802b68f24 in ??? () at /usr/local/lib/libgobject-2.0.so.0
> >> #13 0x0000000802b82082 in ??? () at /usr/local/lib/libgobject-2.0.so.0
> >> #14 0x0000000802b82bbc in g_signal_emit () at >> /usr/local/lib/libgobject-2.0.so.0
> >> #15 0x0000000803474fbf in ??? () at /usr/local/lib/libgdk-3.so.0
> >> #16 0x000000080345f832 in ??? () at /usr/local/lib/libgdk-3.so.0
> >> #17 0x00000008035d2a41 in ??? () at /usr/local/lib/libglib-2.0.so.0
> >> #18 0x00000008035d7241 in ??? () at /usr/local/lib/libglib-2.0.so.0
> >> #19 0x00000008035d76c7 in ??? () at /usr/local/lib/libglib-2.0.so.0
> >> #20 0x00000008035d7766 in g_main_context_iteration () at >> /usr/local/lib/libglib-2.0.so.0
> >> #21 0x000000080a236f68 in nsAppShell::ProcessNextNativeEvent(bool) () >> at /usr/local/lib/firefox/libxul.so
> >> #22 0x000000080a187b86 in >> nsBaseAppShell::OnProcessNextEvent(nsIThreadInternal*, bool) () at >> /usr/local/lib/firefox/libxul.so
> >> #23 0x000000080a187c6d in non-virtual thunk to >> nsBaseAppShell::OnProcessNextEvent(nsIThreadInternal*, bool) () at >> /usr/local/lib/firefox/libxul.so
> >> #24 0x0000000806e94d28 in nsThread::ProcessNextEvent(bool, bool*) () >> at /usr/local/lib/firefox/libxul.so
> >> #25 0x0000000806e98daf in NS_ProcessNextEvent(nsIThread*, bool) () at >> /usr/local/lib/firefox/libxul.so
> >> #26 0x0000000807453d29 in >> mozilla::ipc::MessagePump::Run(base::MessagePump::Delegate*) () at >> /usr/local/lib/firefox/libxul.so
> >> #27 0x000000080740b057 in MessageLoop::Run() () at >> /usr/local/lib/firefox/libxul.so
> >> #28 0x000000080a1878a9 in nsBaseAppShell::Run() () at >> /usr/local/lib/firefox/libxul.so
> >> #29 0x000000080a236ea1 in nsAppShell::Run() () at >> /usr/local/lib/firefox/libxul.so
> >> #30 0x000000080aba4a69 in nsAppStartup::Run() () at >> /usr/local/lib/firefox/libxul.so
> >> #31 0x000000080ac808a6 in XREMain::XRE_mainRun() () at >> /usr/local/lib/firefox/libxul.so
> >> #32 0x000000080ac81039 in XREMain::XRE_main(int, char**, >> mozilla::BootstrapConfig const&) () at /usr/local/lib/firefox/libxul.so
> >> #33 0x000000080ac815ea in XRE_main(int, char**, >> mozilla::BootstrapConfig const&) () at /usr/local/lib/firefox/libxul.so
> >> #34 0x0000000001046fbc in main ()
> >> ```
> >> (sorry, I have no clue how to get a properly installed gtk+-3 with >> debug symbols, rebuilding the port with `DEBUG` option didn't help.)
> >>
> >> I also don't really know what exactly caused this, because besides >> happening shortly after an upgrade,
> >> it didn't start immediately; earlier today it still worked, and then >> it just started failing at some point,
> >> with no clue as to why (no amount of rebooting or using different >> packages/ports appeared to influence this).
> >>
> >> Regards,
> >> Ellen Zscheile
> >>
> >>
> >
>  
> 
> 
>