[Bf-committers] crash in recent builds with wp mode

[Campbell Barton]

Currently at a tradeshow and dont have a lot of time to report this,
been getting a lot of crashes with entering and exiting WeightPaint mode 
on recent builds.

This is a backtrace of the problem- happens when intering wp mode after 
changing scenes.

- Its its better to report this in the tracker let me know.
- if the backtraces arnt helpfull, wait untill I can better report the 
problem.

Here are some backtraces from a recent compile all doing  the smae 
thing. enter exit wpmode , after changing scenes.

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread -1224452400 (LWP 9269)]
flush_update_node (node=0x8b28510, layer=256, curtime=4) at depsgraph.c:1544
1544            if(ob->recalc & OB_RECALC) {
(gdb) bt
#0  flush_update_node (node=0x8b28510, layer=256, curtime=4)
    at depsgraph.c:1544
#1  0x08427096 in flush_update_node (node=0x13f24dd8, layer=256, curtime=4)
    at depsgraph.c:1613
#2  0x0842983f in DAG_scene_flush_update (sce=0xee8d418, lay=256)
    at depsgraph.c:1668
#3  0x08429918 in DAG_object_flush_update (sce=0xee8d418, ob=0xef42090, 
flag=2)
    at depsgraph.c:1900
#4  0x081e78e3 in set_wpaint () at vpaint.c:1547
#5  0x081c132a in blenderqread (event=219, val=1) at toets.c:682
#6  0x08107c10 in screenmain () at editscreen.c:1450
#7  0x080c9755 in main (argc=1, argv=0xbfd6dba4) at creator.c:697
(gdb) c
Continuing.




[Switching to Thread -1224939824 (LWP 9356)]
flush_layer_node (node=0x1182d2f0, curtime=3) at depsgraph.c:1627
1627                    if(itA->node->type==ID_OB) {
(gdb) bt
#0  flush_layer_node (node=0x1182d2f0, curtime=3) at depsgraph.c:1627
#1  0x084297f2 in DAG_scene_flush_update (sce=0xee7a150, lay=2)
    at depsgraph.c:1660
#2  0x08429918 in DAG_object_flush_update (sce=0xee7a150, ob=0xef2edc8, 
flag=2)
    at depsgraph.c:1900
#3  0x081e78e3 in set_wpaint () at vpaint.c:1547
#4  0x081c132a in blenderqread (event=219, val=1) at toets.c:682
#5  0x08107c10 in screenmain () at editscreen.c:1450
#6  0x080c9755 in main (argc=1, argv=0xbf832e64) at creator.c:697