[Lazarus] Some questions about thread timing and syncrhonization

[Frank Church]

Le Saturday 10 July 2010 22:39:00 Mattias Gaertner, vous avez écrit :

> > Trying to re-buid Lazarus only builds the LCL, and trying to configure
> > Lazarus build also leads to an AV.
>
> Can you create a backtrace?

Here attached is the backtrace

I will try the snapshot soon.

Thanks Mattias
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#0  0xb7c77dbe in gtk_tree_row_reference_valid () from /usr/lib/libgtk-x11-2.0.so.0
#1  0x082b9c8c in TGTK2WSCUSTOMLISTBOX__SETITEMINDEX (ACUSTOMLISTBOX=0xb6a13790, AINDEX=-1, pvmt=0xb6e80d70)
    at gtk2wsstdctrls.pp:513
#2  0x081ea5eb in TCUSTOMLISTBOX__SENDITEMINDEX (this=<error reading variable>)
    at ./include/customlistbox.inc:483
#3  0x081e985a in TCUSTOMLISTBOX__INITIALIZEWND (this=<error reading variable>)
    at ./include/customlistbox.inc:113
#4  0x081a8d2c in TWINCONTROL__CREATEWND (this=<error reading variable>) at ./include/wincontrol.inc:6734
#5  0x081a8925 in TWINCONTROL__CREATEHANDLE (this=<error reading variable>) at ./include/wincontrol.inc:6650
#6  0x081a98fa in TWINCONTROL__HANDLENEEDED (this=<error reading variable>) at ./include/wincontrol.inc:7054
#7  0x081a8df5 in TWINCONTROL__CREATEWND (this=<error reading variable>) at ./include/wincontrol.inc:6749
#8  0x081a8925 in TWINCONTROL__CREATEHANDLE (this=<error reading variable>) at ./include/wincontrol.inc:6650
#9  0x081a98fa in TWINCONTROL__HANDLENEEDED (this=<error reading variable>) at ./include/wincontrol.inc:7054
#10 0x081a8df5 in TWINCONTROL__CREATEWND (this=<error reading variable>) at ./include/wincontrol.inc:6749
#11 0x0824d0c1 in TCUSTOMNOTEBOOK__CREATEWND (this=<error reading variable>) at ./include/customnotebook.inc:235
#12 0x081a8925 in TWINCONTROL__CREATEHANDLE (this=<error reading variable>) at ./include/wincontrol.inc:6650
#13 0x081a98fa in TWINCONTROL__HANDLENEEDED (this=<error reading variable>) at ./include/wincontrol.inc:7054
#14 0x081a8df5 in TWINCONTROL__CREATEWND (this=<error reading variable>) at ./include/wincontrol.inc:6749
#15 0x0807b531 in TSCROLLINGWINCONTROL__CREATEWND (this=<error reading variable>)
    at ./include/scrollingwincontrol.inc:32
#16 0x080807b2 in TCUSTOMFORM__CREATEWND (this=<error reading variable>) at ./include/customform.inc:1990
#17 0x08081889 in TFORM__CREATEWND (this=<error reading variable>) at ./include/customform.inc:2390
#18 0x081a8925 in TWINCONTROL__CREATEHANDLE (this=<error reading variable>) at ./include/wincontrol.inc:6650
---Type <return> to continue, or q <return> to quit---
#19 0x081a3c3a in TWINCONTROL__UPDATESHOWING (this=<error reading variable>) at ./include/wincontrol.inc:3976
#20 0x08080dad in TCUSTOMFORM__UPDATESHOWING (this=<error reading variable>) at ./include/customform.inc:2206    
#21 0x081a73dd in TWINCONTROL__UPDATECONTROLSTATE (this=<error reading variable>)
    at ./include/wincontrol.inc:5763                                                                             
#22 0x081aa79b in TWINCONTROL__CMVISIBLECHANGED (THEMESSAGE=..., this=<error reading variable>)                  
    at ./include/wincontrol.inc:7455
#23 0x0806b5fa in SYSTEM_TOBJECT_$__DISPATCH$formal ()
#24 0x081aa740 in TWINCONTROL__GETDEVICECONTEXT (WINDOWHANDLE=45067, this=<error reading variable>)
    at ./include/wincontrol.inc:7438
#25 0x081a5b92 in TWINCONTROL__WNDPROC (MESSAGE=..., this=<error reading variable>)
    at ./include/wincontrol.inc:4920
#26 0x0807e5cf in TCUSTOMFORM__WNDPROC (THEMESSAGE=..., this=<error reading variable>)
    at ./include/customform.inc:1056
#27 0x081ad178 in TCONTROL__PERFORM (MSG=45067, WPARAM=1, LPARAM=0, this=<error reading variable>)
    at ./include/control.inc:992
#28 0x081b20cd in TCONTROL__SETVISIBLE (VALUE=true, this=<error reading variable>) at ./include/control.inc:3468
#29 0x0807d34f in TCUSTOMFORM__SETVISIBLE (VALUE=true, this=<error reading variable>)                            
    at ./include/customform.inc:357
#30 0x0807fe49 in TCUSTOMFORM__SHOW (this=<error reading variable>) at ./include/customform.inc:1692
#31 0x08081202 in TCUSTOMFORM__SHOWMODAL (this=<error reading variable>) at ./include/customform.inc:2266
#32 0x0852d793 in SHOWCONFIGUREBUILDLAZARUSDLG (AOPTIONS=0xb6d71220) at buildlazdialog.pas:311
#33 0x080a13bc in TMAINIDE__MNUTOOLCONFIGBUILDLAZCLICKED (SENDER=0xb672f200, this=<error reading variable>)
    at main.pp:3975
---Type <return> to continue, or q <return> to quit---
#34 0x084385a8 in TIDEMENUITEM__MENUITEMCLICK (SENDER=0xb669dce0, this=<error reading variable>)
    at menuintf.pas:536
#35 0x0843b31a in TIDEMENUCOMMAND__MENUITEMCLICK (SENDER=0xb669dce0, this=<error reading variable>)
    at menuintf.pas:1531
#36 0x081ba7d1 in TMENUITEM__CLICK (this=<error reading variable>) at ./include/menuitem.inc:75
#37 0x081badd8 in TMENUITEM__DOCLICKED (MSG=void, this=<error reading variable>) at ./include/menuitem.inc:264
#38 0x0806b5fa in SYSTEM_TOBJECT_$__DISPATCH$formal ()
#39 0x081bada0 in TMENUITEM__GETPARENTCOMPONENT (this=<error reading variable>) at ./include/menuitem.inc:253
#40 0x0821c81b in DELIVERMESSAGE (TARGET=0xb669dce0, AMESSAGE=void)
    at /home/mandrake/rpm/BUILD/lazarus-0.9.28.2/lazarus/lcl/interfaces/gtk/gtkproc.inc:3707
#41 0x082c68e3 in GTK2MENUITEMACTIVATE (WIDGET=0x8e6a140, DATA=0xb669dce0) at gtk2wsmenus.pp:108
#42 0xb798badc in g_cclosure_marshal_VOID__VOID () from /usr/lib/libgobject-2.0.so.0
#43 0xb797dd22 in g_closure_invoke () from /usr/lib/libgobject-2.0.so.0
#44 0xb79927aa in ?? () from /usr/lib/libgobject-2.0.so.0
#45 0xb7993d61 in g_signal_emit_valist () from /usr/lib/libgobject-2.0.so.0
#46 0xb79941f7 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0
#47 0xb7cbfdf5 in gtk_widget_activate () from /usr/lib/libgtk-x11-2.0.so.0
#48 0xb7b9e000 in gtk_menu_shell_activate_item () from /usr/lib/libgtk-x11-2.0.so.0
#49 0xb7b9f90f in ?? () from /usr/lib/libgtk-x11-2.0.so.0
#50 0xb7b952b4 in ?? () from /usr/lib/libgtk-x11-2.0.so.0
#51 0xb7b8ea74 in ?? () from /usr/lib/libgtk-x11-2.0.so.0
#52 0xb797c27e in ?? () from /usr/lib/libgobject-2.0.so.0
#53 0xb797dd22 in g_closure_invoke () from /usr/lib/libgobject-2.0.so.0
---Type <return> to continue, or q <return> to quit---
#54 0xb799257f in ?? () from /usr/lib/libgobject-2.0.so.0
#55 0xb7993bfe in g_signal_emit_valist () from /usr/lib/libgobject-2.0.so.0
#56 0xb79941f7 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0
#57 0xb7cbc046 in ?? () from /usr/lib/libgtk-x11-2.0.so.0
#58 0xb7b870bd in gtk_propagate_event () from /usr/lib/libgtk-x11-2.0.so.0
#59 0xb7b8844f in gtk_main_do_event () from /usr/lib/libgtk-x11-2.0.so.0
#60 0xb7a0d52a in ?? () from /usr/lib/libgdk-x11-2.0.so.0
#61 0xb78d3cbe in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#62 0xb78d79f8 in ?? () from /usr/lib/libglib-2.0.so.0
#63 0xb78d7b9e in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#64 0xb7b88803 in gtk_main_iteration_do () from /usr/lib/libgtk-x11-2.0.so.0
#65 0x081faaea in TGTKWIDGETSET__APPWAITMESSAGE (this=<error reading variable>)
    at /home/mandrake/rpm/BUILD/lazarus-0.9.28.2/lazarus/lcl/interfaces/gtk/gtkwidgetset.inc:1283
#66 0x08084d0a in TAPPLICATION__IDLE (WAIT=true, this=<error reading variable>) at ./include/application.inc:338
#67 0x080868cf in TAPPLICATION__HANDLEMESSAGE (this=<error reading variable>) at ./include/application.inc:1136
#68 0x08086d0f in TAPPLICATION__RUNLOOP (this=<error reading variable>) at ./include/application.inc:1269
#69 0x080e8903 in TWIDGETSET__APPRUN (ALOOP=0x8086cd0 <TAPPLICATION__RUNLOOP>, this=<error reading variable>)
    at ./include/interfacebase.inc:49
#70 0x08086cca in TAPPLICATION__RUN (this=<error reading variable>) at ./include/application.inc:1257
#71 0x0805d242 in main () at lazarus.pp:114