Sharing the code snippet. As per the following code, -setText should not set property self.stringValue. Instead it should set self.attributedStringValue. But the crash log we see that crash occurs inside call to setStringValue // Create the text field NSTextField* textField = [[NSTextField alloc] initWithFrame:NSMakeRect(x, y, width, height)]; // Use the system font using the standard size textField.font = [NSFont labelFontOfSize:[NSFont systemFontSize]]; textField.textColor = [NSColor textColor]; [textField setStatic]; [textField setID:idControl]; [textField setText:szText]; @implementation NSTextField(NSTextFieldAdditions) (void) setStatic { self.alignment = NSLeftTextAlignment; self.bordered = NO; self.drawsBackground = NO; self.bezeled = NO; self.editable = NO; self.selectable = NO; } (void) setText:(const tchar*)szText { LFTRACE("Text:", szText); // If an input control then use the unstyled text. If a static control then use the attributed text if ((self.isEditable) || (self.isSelectable) || (self.drawsBackground)) { self.stringValue = [NSString stringWithUTF8String:szText]; } else { NSMutableAttributedString* attrStringMutable = [[[NSMutableAttributedString alloc] initWithString:nszText attributes:attrDic] autorelease]; self.attributedStringValue = attrStringMutable; }

Sorry for bad formatting of the code. The crash is not reproduced on my Mac. It is produced on customer machines. It frequency is low but if it produced on a particular Mac it always consistently produced on that Mac. So I think it is hardware dependent.

// Create the text field NSTextField* textField = [[NSTextField alloc] initWithFrame:NSMakeRect(x, y, width, height)]; // Use the system font using the standard size textField.font = [NSFont labelFontOfSize:[NSFont systemFontSize]]; textField.textColor = [NSColor textColor]; [textField setStatic]; [textField setID:idControl]; [textField setText:szText]; // <== crash in this function @implementation NSTextField(NSTextFieldAdditions) (void) setStatic { self.alignment = NSLeftTextAlignment; self.bordered = NO; self.drawsBackground = NO; self.bezeled = NO; self.editable = NO; self.selectable = NO; } (void) setText:(const tchar*)szText { // If an input control then use the unstyled text. If a static control then use the attributed text if ((self.isEditable) || (self.isSelectable) || (self.drawsBackground)) { // <== Always take this path which should not happen self.stringValue = [NSString stringWithUTF8String:szText]; } else { NSMutableAttributedString* attrStringMutable = [[[NSMutableAttributedString alloc] initWithString:nszText attributes:attrDic] autorelease]; self.attributedStringValue = attrStringMutable; }