Re: [Help-smalltalk] gst-browser crashes when loading modified images.

[Holger Freyther]

> On 3. Sep 2019, at 01:18, Colton via help-smalltalk <address@hidden> wrote:
> 

Hi,

sorry for experiencing a crash. I don't remember if this part ever worked. I 
think
what happens is that after the image resumes pointers to the old GTK+ are 
dangling.

It would be great if you want to see what happens. The first item is to get 
debug
symbols installed to see where in GST it crashed.

To see which Smalltalk code was executed the best method is to use
_gst_show_backtrace(stdout) within gdb.

If you take a look at .gdbinit of the smalltalk sourcecode you will find a macro
like this. If you load the file typing stbt will give you the Smalltalk 
backtrace


define stbt
set unwindonsignal on
call _gst_show_backtrace (stdout)
call (void)fflush(stdout)
set unwindonsignal off
end
document stbt
Print the backtrace of the currently running Smalltalk process.
end


> Hello,
> 
> Yesterday I posted on #gnu-smalltalk and got no response, and since the
> issue tracker seems to only be open to registered users and registration
> is closed, I am reaching out any way I can.
> 
> Here is more detailed problem information.
> 
> OS: Arch Linux
> GST: GNU Smalltalk version 3.2.92-edb6bad6
> 
> Problem description: gst-browser crashes when loading previously saved images.
> 
> Steps to reproduce:
> 1. Create new image with `gst-browser -iI test.im`.
> 2. Create new class or namespace.
> 3. Exit gst-browser, saving the image.
> 4. Attempt to load image with `gst-browser -I test.im`.




> Error output:
> a Smalltalk Stream:3: Aborted
> a Smalltalk Stream:3: Error occurred while not in byte code interpreter!!
> /usr/lib/libgst.so.7(+0x75b68)[0x7f5df95d8b68]
> /usr/lib/libc.so.6(+0x3a7e0)[0x7f5df93da7e0]
> /usr/lib/libc.so.6(gsignal+0x145)[0x7f5df93da755]
> /usr/lib/libc.so.6(abort+0x125)[0x7f5df93c5851]
> /usr/lib/libgst.so.7(+0x10042)[0x7f5df9573042]
> /usr/lib/libsigsegv.so.2(+0xd4c)[0x7f5df919cd4c]
> /usr/lib/libc.so.6(+0x3a7e0)[0x7f5df93da7e0]
> /usr/lib/libgtk-x11-2.0.so.0(gtk_notebook_set_tab_label+0x2f)[0x7f5df3a873ef]
> /usr/lib/libffi.so.6(ffi_call_unix64+0x4c)[0x7f5df91976d0]
> /usr/lib/libffi.so.6(ffi_call+0x230)[0x7f5df91970a0]
> aborted (core dumped)
> 
> Full backtrace:
> #0  0x00007f5df93da755 in raise () at /usr/lib/libc.so.6
> #1  0x00007f5df93c5851 in abort () at /usr/lib/libc.so.6
> #2  0x00007f5df9573042 in  () at /usr/lib/libgst.so.7
> #3  0x00007f5df919cd4c in  () at /usr/lib/libsigsegv.so.2
> #4  0x00007f5df93da7e0 in <signal handler called> () at /usr/lib/libc.so.6
> #5  0x00007f5df3a873ef in gtk_notebook_set_tab_label () at 
> /usr/lib/libgtk-x11-2.0.so.0
> #6  0x00007f5df91976d0 in ffi_call_unix64 () at /usr/lib/libffi.so.6
> #7  0x00007f5df91970a0 in ffi_call () at /usr/lib/libffi.so.6
> #8  0x00007f5df95a7e59 in  () at /usr/lib/libgst.so.7
> #9  0x00007f5df95cb2b7 in  () at /usr/lib/libgst.so.7
> #10 0x00007f5df95c9af4 in  () at /usr/lib/libgst.so.7
> #11 0x00007f5df95d18e6 in  () at /usr/lib/libgst.so.7
> #12 0x00007f5df95d82c5 in  () at /usr/lib/libgst.so.7
> #13 0x00007f5df526c938 in  () at /usr/lib/libgst-gobject.so.1
> #14 0x00007f5df4959caa in g_closure_invoke () at /usr/lib/libgobject-2.0.so.0
> #15 0x00007f5df4947706 in  () at /usr/lib/libgobject-2.0.so.0
> #16 0x00007f5df494b89a in g_signal_emit_valist () at 
> /usr/lib/libgobject-2.0.so.0
> #17 0x00007f5df494c700 in g_signal_emit () at /usr/lib/libgobject-2.0.so.0
> #18 0x00007f5df3b4c2e7 in gtk_tree_selection_select_path () at 
> /usr/lib/libgtk-x11-2.0.so.0
> #19 0x00007f5df3b4c3e6 in gtk_tree_selection_select_iter () at 
> /usr/lib/libgtk-x11-2.0.so.0
> #20 0x00007f5df91976d0 in ffi_call_unix64 () at /usr/lib/libffi.so.6
> #21 0x00007f5df91970a0 in ffi_call () at /usr/lib/libffi.so.6
> #22 0x00007f5df95a7e59 in  () at /usr/lib/libgst.so.7
> #23 0x00007f5df95cb2b7 in  () at /usr/lib/libgst.so.7
> #24 0x00007f5df95c9af4 in  () at /usr/lib/libgst.so.7
> #25 0x00007f5df95d18e6 in  () at /usr/lib/libgst.so.7
> #26 0x00007f5df95d82c5 in  () at /usr/lib/libgst.so.7
> #27 0x00007f5df95871b6 in  () at /usr/lib/libgst.so.7
> #28 0x00007f5df95778a9 in  () at /usr/lib/libgst.so.7
> #29 0x00007f5df9578c70 in  () at /usr/lib/libgst.so.7
> #30 0x00007f5df957a6f6 in  () at /usr/lib/libgst.so.7
> #31 0x00007f5df957ad38 in  () at /usr/lib/libgst.so.7
> #32 0x00007f5df957b268 in  () at /usr/lib/libgst.so.7
> #33 0x00007f5df957ce8f in  () at /usr/lib/libgst.so.7
> #34 0x00007f5df95cbabf in  () at /usr/lib/libgst.so.7
> #35 0x00007f5df95cbb9d in  () at /usr/lib/libgst.so.7
> #36 0x00007f5df95c9af4 in  () at /usr/lib/libgst.so.7
> #37 0x00007f5df95d1470 in  () at /usr/lib/libgst.so.7
> #38 0x00007f5df95d82c5 in  () at /usr/lib/libgst.so.7
> #39 0x00007f5df95871b6 in  () at /usr/lib/libgst.so.7
> #40 0x00007f5df95778a9 in  () at /usr/lib/libgst.so.7
> #41 0x00007f5df9578c70 in  () at /usr/lib/libgst.so.7
> #42 0x00007f5df957a6f6 in  () at /usr/lib/libgst.so.7
> #43 0x00007f5df957ad38 in  () at /usr/lib/libgst.so.7
> #44 0x00007f5df957b268 in  () at /usr/lib/libgst.so.7
> #45 0x00007f5df957ce8f in  () at /usr/lib/libgst.so.7
> #46 0x00007f5df95cbabf in  () at /usr/lib/libgst.so.7
> #47 0x00007f5df95cbb9d in  () at /usr/lib/libgst.so.7
> #48 0x00007f5df95c9af4 in  () at /usr/lib/libgst.so.7
> #49 0x00007f5df95d1470 in  () at /usr/lib/libgst.so.7
> #50 0x00007f5df95d82c5 in  () at /usr/lib/libgst.so.7
> #51 0x00007f5df95871b6 in  () at /usr/lib/libgst.so.7
> #52 0x00007f5df95778a9 in  () at /usr/lib/libgst.so.7
> #53 0x00007f5df957a1d2 in  () at /usr/lib/libgst.so.7
> #54 0x00007f5df957ad38 in  () at /usr/lib/libgst.so.7
> #55 0x00007f5df957b268 in  () at /usr/lib/libgst.so.7
> #56 0x00007f5df957ce8f in  () at /usr/lib/libgst.so.7
> #57 0x00007f5df95aa1b0 in  () at /usr/lib/libgst.so.7
> #58 0x000055ab9a0f92dd in main ()
> 
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