Problem with dialogs

[pztrn]

Hello.

Trying to run urtrator (https://github.com/pztrn/urtrator) on fully updated CentOS 7. Everything builds and run fine, except dialogs. When I'm trying to show dialog (e.g. https://github.com/pztrn/urtrator/blob/master/ui/options.go#L70) this errors appeared:

*** Error in `/home/parallels/.go/workspace/bin/./urtrator': malloc(): memory corruption (fast): 0x00000000010a7320 ***
======= Backtrace: =========
/lib64/libc.so.6(+0x7b194)[0x7ffff4f6e194]
/lib64/libc.so.6(+0x7e917)[0x7ffff4f71917]
/lib64/libc.so.6(__libc_malloc+0x4c)[0x7ffff4f7326c]
/lib64/libxcb.so.1(+0xc7a2)[0x7ffff1c8c7a2]
/lib64/libxcb.so.1(+0xcaf8)[0x7ffff1c8caf8]
/lib64/libX11.so.6(+0x425c9)[0x7ffff49f35c9]
/lib64/libX11.so.6(+0x42746)[0x7ffff49f3746]
/lib64/libX11.so.6(_XEventsQueued+0x5d)[0x7ffff49f3a2d]
/lib64/libX11.so.6(XPending+0x4d)[0x7ffff49e555d]
/lib64/libgdk-x11-2.0.so.0(+0x5ce3c)[0x7ffff74f2e3c]
/lib64/libglib-2.0.so.0(g_main_context_check+0x171)[0x7ffff5bc6501]
/lib64/libglib-2.0.so.0(+0x49a03)[0x7ffff5bc6a03]
/lib64/libglib-2.0.so.0(g_main_loop_run+0x6a)[0x7ffff5bc6dca]
/lib64/libgtk-x11-2.0.so.0(gtk_dialog_run+0x1be)[0x7ffff7818cfe]
/home/parallels/.go/workspace/bin/./urtrator(_cgo_8cf5db2797da_Cfunc_gtk_dialog_run+0x17)[0x676907]
/home/parallels/.go/workspace/bin/./urtrator[0x49a460]
======= Memory map: ========
00400000-009e7000 r-xp 00000000 fd:02 528111                             /home/parallels/.go/workspace/bin/urtrator
00be7000-00be9000 r--p 005e7000 fd:02 528111                             /home/parallels/.go/workspace/bin/urtrator
00be9000-00c0a000 rw-p 005e9000 fd:02 528111                             /home/parallels/.go/workspace/bin/urtrator
00c0a000-010e0000 rw-p 00000000 00:00 0                                  [heap]
c000000000-c000002000 rw-p 00000000 00:00 0 
c41ffd8000-c420500000 rw-p 00000000 00:00 0 
7fffd8000000-7fffd8021000 rw-p 00000000 00:00 0 
7fffd8021000-7fffdc000000 ---p 00000000 00:00 0 
7fffdc000000-7fffdc021000 rw-p 00000000 00:00 0 
7fffdc021000-7fffe0000000 ---p 00000000 00:00 0 
7fffe0000000-7fffe0022000 rw-p 00000000 00:00 0 
7fffe0022000-7fffe4000000 ---p 00000000 00:00 0 
7fffe4cd3000-7fffe4cd4000 ---p 00000000 00:00 0 
7fffe4cd4000-7fffe54d4000 rw-p 00000000 00:00 0                          [stack:5172]
7fffe54d4000-7fffe5548000 rw-p 00000000 00:00 0 
7fffe5570000-7fffe55c1000 rw-p 00000000 00:00 0 
7fffe55c1000-7fffe5621000 rw-s 00000000 00:04 1933326                    /SYSV00000000 (deleted)
7fffe5621000-7fffe5628000 r-xp 00000000 fd:00 927792                     /usr/lib64/gtk-2.0/2.10.0/immodules/im-xim.so
7fffe5628000-7fffe5827000 ---p 00007000 fd:00 927792                     /usr/lib64/gtk-2.0/2.10.0/immodules/im-xim.so
7fffe5827000-7fffe5828000 r--p 00006000 fd:00 927792                     /usr/lib64/gtk-2.0/2.10.0/immodules/im-xim.so
7fffe5828000-7fffe5829000 rw-p 00007000 fd:00 927792                     /usr/lib64/gtk-2.0/2.10.0/immodules/im-xim.so
7fffe5829000-7fffe5889000 rw-s 00000000 00:04 1835021                    /SYSV00000000 (deleted)
7fffe5889000-7fffe5939000 r--p 00000000 fd:00 658549                     /usr/share/fonts/dejavu/DejaVuSans.ttf
7fffe5939000-7fffe593b000 r--s 00000000 fd:00 2621519                    /var/cache/fontconfig/87f5e051180a7a75f16eb6fe7dbd3749-le64.cache-4
7fffe593b000-7fffe5946000 r--s 00000000 fd:00 2621515                    /var/cache/fontconfig/b79f3aaa7d385a141ab53ec885cc22a8-le64.cache-4
7fffe5946000-7fffe5949000 r--s 00000000 fd:00 2621527                    /var/cache/fontconfig/0b1bcc92b4d25cc154d77dafe3bceaa0-le64.cache-4
7fffe5949000-7fffe594b000 r--s 00000000 fd:00 2622304                    /var/cache/fontconfig/711dae798b6bff4224ea2776edcb5c93-le64.cache-4
7fffe594b000-7fffe594d000 r--s 00000000 fd:00 2622302                    /var/cache/fontconfig/2e1514a9fdd499050989183bb65136db-le64.cache-4
7fffe594d000-7fffe5957000 r--s 00000000 fd:00 2622309                    /var/cache/fontconfig/75726aeed9fe8691fd29315754d820cc-le64.cache-4
7fffe5957000-7fffe5959000 r--s 00000000 fd:00 2622286                    /var/cache/fontconfig/3f821257dd33660ba7bbb45c32deb84c-le64.cache-4
7fffe5959000-7fffe595c000 r--s 00000000 fd:00 2622289                    /var/cache/fontconfig/830f035fa84a65ce80e050178dbb630d-le64.cache-4
7fffe595c000-7fffe595d000 r--s 00000000 fd:00 2622301                    /var/cache/fontconfig/81a173283b451552b599cfaafd6236bd-le64.cache-4
7fffe595d000-7fffe595e000 r--s 00000000 fd:00 2622311                    /var/cache/fontconfig/ac68f755438cc3dc5a526084839fc7ca-le64.cache-4
7fffe595e000-7fffe595f000 r--s 00000000 fd:00 2622297                    /var/cache/fontconfig/f951a6bc01c50d58ac4af16a0108457e-le64.cache-4
7fffe595f000-7fffe5960000 r--s 00000000 fd:00 2622296                    /var/cache/fontconfig/12513961c6e7090f8648812f9eaf65d6-le64.cache-4
7fffe5960000-7fffe5963000 r--s 00000000 fd:00 2622287                    /var/cache/fontconfig/e26bf336397aae6fcef4d3803472adec-le64.cache-4
7fffe5963000-7fffe5964000 r--s 00000000 fd:00 2622288                    /var/cache/fontconfig/f132fa2327207a6ac3298c0518879731-le64.cache-4
Program received signal SIGABRT, Aborted.
0x00007ffff4f285f7 in __GI_raise (sig=sig@entry=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:56
56	  return INLINE_SYSCALL (tgkill, 3, pid, selftid, sig);
(gdb) bt
#0  0x00007ffff4f285f7 in __GI_raise (sig=sig@entry=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:56
#1  0x00007ffff4f29ce8 in __GI_abort () at abort.c:90
#2  0x00007ffff4f68327 in __libc_message (do_abort=do_abort@entry=2, fmt=fmt@entry=0x7ffff5072488 "*** Error in `%s': %s: 0x%s ***\n")
    at ../sysdeps/unix/sysv/linux/libc_fatal.c:196
#3  0x00007ffff4f6e194 in malloc_printerr (action=<optimized out>, str=0x7ffff5072650 "malloc(): memory corruption (fast)", ptr=<optimized out>, ar_ptr=<optimized out>)
    at malloc.c:5022
#4  0x00007ffff4f71917 in _int_malloc (av=av@entry=0x7ffff52ae760 <main_arena>, bytes=bytes@entry=16) at malloc.c:3382
#5  0x00007ffff4f7326c in __GI___libc_malloc (bytes=16) at malloc.c:2895
#6  0x00007ffff1c8c7a2 in _xcb_in_read (c=0xdada50) at xcb_in.c:320
#7  0x00007ffff1c8c7a2 in _xcb_in_read (c=c@entry=0xdada50) at xcb_in.c:979
#8  0x00007ffff1c8caf8 in poll_for_next_event (c=0xdada50, queued=queued@entry=0) at xcb_in.c:684
#9  0x00007ffff1c8cb17 in xcb_poll_for_event (c=<optimized out>) at xcb_in.c:693
#10 0x00007ffff49f35c9 in poll_for_event (dpy=dpy@entry=0xdac800) at xcb_io.c:242
#11 0x00007ffff49f3746 in poll_for_response (dpy=dpy@entry=0xdac800) at xcb_io.c:274
#12 0x00007ffff49f3a2d in _XEventsQueued (dpy=dpy@entry=0xdac800, mode=mode@entry=2) at xcb_io.c:349
#13 0x00007ffff49e555d in XPending (dpy=0xdac800) at Pending.c:55
#14 0x00007ffff74f2dd1 in gdk_check_xpending (display=<optimized out>) at gdkevents-x11.c:159
#15 0x00007ffff74f2e3c in gdk_event_check (source=0xdc2a30) at gdkevents-x11.c:2400
#16 0x00007ffff5bc6501 in g_main_context_check (context=context@entry=0xdc2b20, max_priority=2147483647, fds=fds@entry=0xf7a180, n_fds=n_fds@entry=2) at gmain.c:3620
#17 0x00007ffff5bc6a03 in g_main_context_iterate (context=0xdc2b20, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3776
#18 0x00007ffff5bc6dca in g_main_loop_run (loop=0xf9c940) at gmain.c:3973
#19 0x00007ffff7818cfe in IA__gtk_dialog_run (dialog=0x10a4050 [GtkMessageDialog]) at gtkdialog.c:1094
#20 0x0000000000676907 in _cgo_8cf5db2797da_Cfunc_gtk_dialog_run (v=0xc420049698) at /home/parallels/.go/workspace/src/github.com/mattn/go-gtk/gtk/gtk.go:5853
#21 0x000000000049a460 in runtime.asmcgocall () at /home/parallels/.go/bin/src/runtime/asm_amd64.s:590
#22 0x000000c420049628 in  ()
#23 0x000000000044522d in runtime.cgocall (fn=0x7ffff7816f30 <gtk_container_expose_child>, arg=0x7fffffffcfb8, ~r2=4826350)
    at /home/parallels/.go/bin/src/runtime/cgocall.go:115
#24 0x00007fffffffdd80 in  ()
Python Exception <type 'exceptions.RuntimeError'> Cannot locate object file for block.: 
#25 0x00007ffff7816f30 in gtk_container_expose_child#26 0x00007fffffffcfb8 in  ()
#27 0x000000000049a4ee in runtime.cgocallback () at /home/parallels/.go/bin/src/runtime/asm_amd64.s:639
#28 0x0000000000572e2c in _cgoexp_b00a5877f6a0__go_glib_callback ()
#29 0x000000000062a6b2 in crosscall2 () at /home/parallels/.go/bin/src/runtime/cgo/asm_amd64.s:61
#30 0x00007fffffffd060 in  ()
#31 0x0000000000000008 in  ()
#32 0x0000000000000000 in  ()

Also, I've tested on Debian 8 (fully updated) - and very same error :(. So I doubt that this related to OS or GTK+2 build.

Also, macOS and Windows (7 and 2012r2) are fine, dialog shows normally.

[mattn]

I'll look into it in later

[pztrn]

After more tests: it does not depend on glib/gdk thread-awareness, tested with and without them.

[mattn]

Hmm, I don't reproduce this as your said. I need to make development-environment for gtk.

[pztrn]

Done more tests: demo app works fine, I can see file selection dialog, and no crash. Also, if I remove dialog - application continue to work flawlessly. Also, simple app:

package main

import (
    "github.com/mattn/go-gtk/gtk"
)

func main() {
	gtk.Init(nil)
	m := gtk.NewMessageDialog(nil, gtk.DIALOG_MODAL, gtk.MESSAGE_INFO, gtk.BUTTONS_OK, "Test")
	m.Response(func() {
        	m.Destroy()
	})
	m.Run()
	gtk.Main()
}

Also shows dialog fine.

[mattn]

Also shows dialog fine.

This is tested on Linux?

[pztrn]

Yes, on Centos 7 and Ubuntu 14.04, sorry for not mentioning it.

[mattn]

Yes, on Centos 7 and Ubuntu 14.04, sorry for not mentioning it.

NP. Then still have issue?

[pztrn]

Yep, I have to disable MessageDialog generation on Linuxes in URTrator to get around it. :( https://github.com/pztrn/urtrator/tree/6495e9073704ce0658d63a6692b810f7e0807a8c is a last commit before I workarounded this bug (or my bad hands?).

[mattn]

or my bad hands?

Should be a bug of go-gtk.

[mattn]

I tried your code on Ubuntu 16.04 (clean installed) and go1.7.3. But can't reproduce.