How to set a breakpoint in malloc error break to debug

Question

I m getting lots of console outputs like this without my application crashing      malloc    error for object 0xc6a3970  pointer being freed was not   allocated      set a breakpoint in malloc error break to debug   How can I find out which object or variable is affected   I tried setting a symbolic breakpoint like this but it never halts

User · Answer

I solve it by close safari inspector  Refer to my post  I also found sound sometimes when I run my app for testing  then I open safari with auto inspector on  after this  I  do some action in my app then this issue triggered

User · Answer

In your screenshot  you didn t specify any module  try setting  libsystem c dylib     I did that  and it works   breakpoint stops here  although the stacktrace often rise from some obscure system lib

User · Answer

I had given permissions I shouldn t have to write in some folders  especially  usr bin    and that caused the problem  I fixed it by opening Disk Utility and running  Repair Disk Permissions  on the Macintosh HD disk

User · Answer

Set a breakpoint on malloc error break   by opening the Breakpoint Navigator  View- gt Navigators- gt Show Breakpoint Navigator or  8   clicking the plus button in the lower left corner  and selecting  quot Add Symbolic Breakpoint quot   In the popup that comes up  enter malloc error break in the Symbol field  then click Done  EDIT  openfrog added a screenshot and indicated that he s already tried these steps without success after I posted my answer  With that edit  I m not sure what to say  I haven t seen that fail to work myself  and indeed I always keep a breakpoint on malloc error break set

User · Answer

I had the same problem with Xcode  I followed steps you gave and it didn t work  I became crazy because in every forum I saw  all clues for this problem are the one you gave  I finally saw I put a space after the malloc error break  I suppressed it and now it works  A dumb problem but if the solution doesn t work  be sure you haven t put any space before and after the malloc error break   Hope this message will help

[iphone] How to "set a breakpoint in malloc_error_break to debug"

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