Release build crashing on Fast, Whole Module Optimization settings

Asked Apr 05 '17 at 09:10

Active Apr 05 '17 at 09:20

Viewed 233 times

I have an app which contains both swift and Objective C code and it crashes at a specific point only on release build mode if I set the optimization level to Fast, Whole Module Optimization and on log it gives me error and there are no other logs

malloc: *** error for object 0x15de80f08: incorrect checksum for freed object - object was probably modified after being freed.
*** set a breakpoint in malloc_error_break to debug

If I set the optimization level to Fast, Single File Optimization, it works just fine.

I can't seem to pin point the part of code that causes crash on Fast, WMO setting. When I took the device log from Xcode, its coming as an unsymbolicated crash log. Can you give me some directions to troubleshoot and fix this issue? Why does it crash with WMO settings and not on with SFO setting?

edited Apr 05 '17 at 09:20

asked Apr 05 '17 at 09:10

Francis F

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Show the crash details. – bbum Apr 05 '17 at 22:30
Its coming as an unsymbolicated crash log, is there any other way to take symbolicated logs? – Francis F Apr 18 '17 at 05:40
That makes it a bit more difficult. :) Still, the crash log may be informative. – bbum Apr 19 '17 at 19:39

Release build crashing on Fast, Whole Module Optimization settings

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