Re: Help with Xfce4 on Pinebook

["David H. Gutteridge" <david%gutteridge.ca@localhost>]

On Sun, 30 Dec 2018, at 12:50:42 -0800, Jason Thorpe wrote:
> I haven't used X11 in practically forever, so saying that I'm a bit rusty on this would be the understatement of the year...
> 
> With no ~/.xinitrc, basic "startx" seems to do the right thing.  When I use "startxfce4", some stuff seems to work, but it looks like the session manager is crashing:
> 
> Core was generated by `xfce4-session'.
> Program terminated with signal SIGSEGV, Segmentation fault.
> #0  0x0000f87e77d26318 in g_type_check_instance_cast ()
>    from /usr/pkg/lib/libgobject-2.0.so.0
> [Current thread is 1 (process 1)]
> (gdb) where
> #0  0x0000f87e77d26318 in g_type_check_instance_cast ()
>    from /usr/pkg/lib/libgobject-2.0.so.0
> #1  0x000000020011b10c in ?? ()
> #2  0x000000020011b7ac in ?? ()
> #3  0x0000f87e77d06910 in g_object_unref ()
>    from /usr/pkg/lib/libgobject-2.0.so.0
> #4  0x0000000200124a20 in ?? ()
> #5  0x0000f87e77d06910 in g_object_unref ()
>    from /usr/pkg/lib/libgobject-2.0.so.0
> #6  0x000000020012091c in ?? ()
> #7  0x0000f87e77d06910 in g_object_unref ()
>    from /usr/pkg/lib/libgobject-2.0.so.0
> #8  0x0000f87e77d28f64 in g_value_unset ()
>    from /usr/pkg/lib/libgobject-2.0.so.0
> #9  0x0000f87e77d1c230 in g_signal_emit_valist ()
>    from /usr/pkg/lib/libgobject-2.0.so.0
> #10 0x0000f87e77d1c6c8 in g_signal_emit ()
>    from /usr/pkg/lib/libgobject-2.0.so.0
> #11 0x00000002001180b8 in ?? ()
> #12 0x0000f87e78ce439c in _SmsProcessMessage (iceConn=0xf87e744473a0, 
>     clientData=0xf87e744510e0, opcode=<optimized out>, length=<optimized out>, 
>     swap=0) at /usr/xsrc/external/mit/libSM/dist/src/sm_process.c:761
> #13 0x0000f87e78cb9d4c in IceProcessMessages (iceConn=0xf87e744473a0, 
>     replyWait=0x0, replyReadyRet=0x0)
>     at /usr/xsrc/external/mit/libICE/dist/src/process.c:378
> #14 0x0000000200116e90 in ?? ()
> #15 0x0000f87e77c0b39c in g_main_context_dispatch ()
>    from /usr/pkg/lib/libglib-2.0.so.0
> #16 0x0000f87e77c0b720 in g_main_context_iterate.isra ()
>    from /usr/pkg/lib/libglib-2.0.so.0
> #17 0x0000f87e77c0baa8 in g_main_loop_run () from /usr/pkg/lib/libglib-2.0.so.0
> #18 0x0000f87e7873eb24 in gtk_main () from /usr/pkg/lib/libgtk-3.so.0
> #19 0x0000000200128cdc in main ()
> (gdb) 
> 
> 
> Has anyone else gotten this to work successfully?

FWIW, on amd64, I consistently get a backtrace like this as well, but
it only ever happens when I exit a session. (That is, I could have the
same session running for a week, without issue. Then when I exit, I end
up with a core with that backtrace.) Are you seeing it while you're
otherwise interacting with Xfce?

See also http://gnats.netbsd.org/53396. That looks possibly related,
and the patch in the PR doesn't seem to have been applied in pkgsrc.
I haven't tried it (but maybe I should).

Dave