Crash drawing a textfield?

FROM : Pierre Bernard
DATE : Wed Nov 28 21:17:11 2007

Hi!

The application I currently work on occasionally drops into the 
debugger with the following stack:

#0    0x938898e6 in mach_msg_trap
#1    0x938910dc in mach_msg
#2    0x92bf52aa in SendFontManagementMessageWithMessageStatus
#3    0x92bff78b in SendOFAStrikeMessage
#4    0x92c02152 in _eOFAGetGlyphData
#5    0x92c017bb in GenerateGlyphData
#6    0x92c00fb3 in _eGetGlyphAddresses
#7    0x92c00cb2 in OldGlyphsCacheRun
#8    0x92c050ab in _eGCGetGlyphDeviceMetrics
#9    0x92c04ed3 in GCGetGlyphDeviceMetrics
#10    0x94de4ec1 in ats_font_get_glyph_bboxes
#11    0x94de7208 in get_glyph_bboxes
#12    0x9259a534 in CGFontGetGlyphBBoxesForStyle
#13    0x9259a4ee in CGFontGetGlyphBBoxes
#14    0x9260822b in CGFontGetContainingBoundingBoxForGlyphs
#15    0x900bc22a in ripc_GetGlyphBoundingBox
#16    0x900c7a2f in ripc_DrawGlyphs
#17    0x925963a9 in draw_glyphs
#18    0x9259601b in CGContextShowGlyphsWithAdvances
#19    0x95ad298c in +[NSStringDrawingTextStorage 
_fastDrawString:attributes:length:inRect:graphicsContext:baselineRendering:usesFontLeading:usesScreenFont:typesetterBehavior:paragraphStyle:lineBreakMode:boundingRect:padding:scrollable
:]
#20    0x95a605d3 in _NSStringDrawingCore
#21    0x95a5fb09 in _NSDrawTextCell
#22    0x95a69dc3 in -[NSTextFieldCell drawInteriorWithFrame:inView:]
#23    0x95a6996f in -[NSTextFieldCell drawWithFrame:inView:]
#24    0x95a6324c in -[NSControl drawRect:]
#25    0x95af6eb0 in -[NSView _drawRect:clip:]
#26    0x95af47c7 in -[NSView 
_recursiveDisplayRectIfNeededIgnoringOpacity:isVisibleRect:rectIsVisibleRectForView:topView
:]
#27    0x95af51f4 in -[NSView 
_recursiveDisplayRectIfNeededIgnoringOpacity:isVisibleRect:rectIsVisibleRectForView:topView
:]
#28    0x95af51f4 in -[NSView 
_recursiveDisplayRectIfNeededIgnoringOpacity:isVisibleRect:rectIsVisibleRectForView:topView
:]
#29    0x95af3ce3 in -[NSThemeFrame 
_recursiveDisplayRectIfNeededIgnoringOpacity:isVisibleRect:rectIsVisibleRectForView:topView
:]
#30    0x95af0814 in -[NSView 
_displayRectIgnoringOpacity:isVisibleRect:rectIsVisibleRectForView:]
#31    0x95a3137d in -[NSView displayIfNeeded]
#32    0x95a30f2d in -[NSWindow displayIfNeeded]
#33    0x95affc7d in -[NSControl drawCell:]
#34    0x95bd9de6 in -[NSButtonCell performClick:]
#35    0x95bad1a9 in -[NSButton performKeyEquivalent:]
#36    0x95bad018 in -[NSControl _performKeyEquivalent:conditionally:]
#37    0x95bacee4 in -[NSView performKeyEquivalent:]
#38    0x95bacee4 in -[NSView performKeyEquivalent:]
#39    0x95bacc4e in -[NSWindow performKeyEquivalent:]
#40    0x95b9ceeb in -[NSTextField textDidEndEditing:]
#41    0x956d977c in _nsnote_callback
#42    0x921b6a4a in __CFXNotificationPost
#43    0x921b6d23 in _CFXNotificationPostNotification
#44    0x956d6a70 in -[NSNotificationCenter 
postNotificationName:object:userInfo:]
#45    0x95b9c002 in -[NSTextView(NSPrivate) _giveUpFirstResponder:]
#46    0x95b9bdcd in -[NSTextView(NSKeyBindingCommands) insertNewline:]
#47    0x95b9bb6f in -[NSResponder doCommandBySelector:]
#48    0x95b9b9f8 in -[NSTextView doCommandBySelector:]
#49    0x95b8eb55 in -
[NSKeyBindingManager(NSKeyBindingManager_MultiClients) 
interpretEventAsCommand:forClient:]
#50    0x95b8d762 in -[NSTSMInputContext interpretKeyEvents:]
#51    0x95b8d27c in -[NSView interpretKeyEvents:]
#52    0x95b8d18a in -[NSTextView keyDown:]
#53    0x95afd8e2 in -[NSWindow sendEvent:]
#54    0x95ac9a2c in -[NSApplication sendEvent:]
#55    0x95a27705 in -[NSApplication run]
#56    0x959f49ba in NSApplicationMain
#57    0x00007aca in main at main.m:13

I have no idea what is going on here or how to approach debugging it.

Best,
Pierre Bernard


---
Pierre Bernard
http://www.bernard-web.com/pierre
http://www.houdah.com