#0  0x000000000088c5c5 in wm_operator_invoke (C=0x2872ab0, ot=0x2aa3190, 
    event=0x2e99aa0, properties=0x7fffffffdd00, reports=0x0)
    at source/blender/windowmanager/intern/wm_event_system.c:557
#1  0x000000000088ca80 in wm_operator_call_internal (C=0x2872ab0, 
    ot=0x2aa3190, context=4, properties=0x7fffffffdd00, reports=0x0)
    at source/blender/windowmanager/intern/wm_event_system.c:709
#2  0x000000000088cb89 in WM_operator_name_call (C=0x2872ab0, 
    opstring=0x19d0323 "WM_OT_save_mainfile", context=4, 
    properties=0x7fffffffdd00)
    at source/blender/windowmanager/intern/wm_event_system.c:744
#3  0x0000000000ac3748 in ui_apply_but_funcs_after (C=0x2872ab0)
    at source/blender/editors/interface/interface_handlers.c:354
#4  0x0000000000ad2ccf in ui_handler_region_menu (C=0x2872ab0, 
    event=0x7fffd8878140, userdata=0x7fffd881ae90)
    at source/blender/editors/interface/interface_handlers.c:5468
#5  0x000000000088bb71 in wm_handler_ui_call (C=0x2872ab0, 
    handler=0x7fffe3b016b0, event=0x7fffd8878140, always_pass=0)
    at source/blender/windowmanager/intern/wm_event_system.c:299
#6  0x000000000088df9b in wm_handlers_do (C=0x2872ab0, event=0x7fffd8878140, 
    handlers=0x7fffe1455fd0)
    at source/blender/windowmanager/intern/wm_event_system.c:1328
#7  0x000000000088e7b9 in wm_event_do_handlers (C=0x2872ab0)
    at source/blender/windowmanager/intern/wm_event_system.c:1545
---Type <return> to continue, or q <return> to quit---
#8  0x000000000087d776 in WM_main (C=0x2872ab0)
    at source/blender/windowmanager/intern/wm.c:325
#9  0x00000000008789a9 in main (argc=2, argv=0x7fffffffe348)
    at source/creator/creator.c:1038