Question by BasP · May 21, 2014 at 02:04 PM · crash crashing crash log

Application crashes, how to decipher output_log.txt?

I have a Unity3D application that crashes every now and then, and I am a bit lost trying to decipher the crash logs.

A common theme I've found is that in all the logs the line "DynamicHeapAllocator out of memory - Could not get memory for large allocation" occurs. So, it ran out of memory, right? But how do I know how much it was allocating, or what for?

I notice that some logs output some more data:

 DynamicHeapAllocator out of memory - Could not get memory for large allocationCould not allocate memory: System out of memory!
 Trying to allocate: 1048588B with 4 alignment. MemoryLabel: TempOverflow
 Allocation happend at: Line:102 in 
 Memory overview
 
 
 [ ALLOC_DEFAULT ] used: 36395388B | peak: 0B | reserved: 44289448B 
 
 [ ALLOC_GFX ] used: 10154878B | peak: 0B | reserved: 16330736B 
 
 [ ALLOC_CACHEOBJECTS ] used: 94988B | peak: 0B | reserved: 10485760B 
 
 [ ALLOC_TYPETREE ] used: 0B | peak: 0B | reserved: 0B 
 
 [ ALLOC_PROFILER ] used: 8280B | peak: 0B | reserved: 8388608B 
 Could not allocate memory: System out of memory!
 Trying to allocate: 1048588B with 4 alignment. MemoryLabel: TempOverflow
 Allocation happend at: Line:102 in 
 Memory overview
 
 
 [ ALLOC_DEFAULT ] used: 36395388B | peak: 0B | reserved: 44289448B 
 
 [ ALLOC_GFX ] used: 10154878B | peak: 0B | reserved: 16330736B 
 
 [ ALLOC_CACHEOBJECTS ] used: 94988B | peak: 0B | reserved: 10485760B 
 
 [ ALLOC_TYPETREE ] used: 0B | peak: 0B | reserved: 0B 
 
 [ ALLOC_PROFILER ] used: 8280B | peak: 0B | reserved: 8388608B 
 
  
 (Filename:  Line: 793)
 
 Crash!!!

I'm -guessing- the problem here lies in ALLOC_DEFAULT, because it has 4428944B reserved and 36395388B in use, which does not leave enough memory for the 1048588B it is trying to allocate, is this correct?

I am wondering though, if these numbers are in bytes, why it can't just reserve more memory. Why is it only reserving only roughly 44 megabytes?

The line "Allocation happened at: Line:102 in" is also frustratingly cut short. If I knew what file or method it occurred in, I might be able to debug my scripts. How do I obtain this information?

One of the other crash logs offers even less information. Rather than the memory overview it just states

 DynamicHeapAllocator out of memory - Could not get memory for large allocationCrash!!!
 SymInit: Symbol-SearchPath: '.;C:\Program Files (x86)\company\InteractiveMap;C:\Program Files (x86)\company\InteractiveMap;C:\Windows;C:\Windows\system32;SRV*C:\websymbols*http://msdl.microsoft.com/download/symbols;', symOptions: 530, UserName: 'User'
 OS-Version: 6.1.7601 (Service Pack 1) 0x100-0x1
 C:\Program Files (x86)\company\InteractiveMap\app.exe:app.exe (01180000), size: 11948032 (result: 0), SymType: '-exported-', PDB: 'C:\Program Files (x86)\company\InteractiveMap\app.exe', fileVersion: 4.3.4.31067
 C:\Windows\SysWOW64\ntdll.dll:ntdll.dll (77530000), size: 1572864 (result: 0), SymType: '-exported-', PDB: 'C:\Windows\SysWOW64\ntdll.dll', fileVersion: 6.1.7601.18247

And then a whole list of other dll's.

I'm kind of at a loss. How do I narrow down what is causing the problem based on this information?

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