FMOD_Studio_VCA_SetVolume

I would like to ask for your assistance in debugging a rare occurring crash for our live players. We are unable to reproduce these crashes unfortunately and are using the C++ API with FMOD version 2.00.08. They look like null pointer exceptions, here are the callstacks reported from our internal tool:

FATAL EXCEPTION at 0x00007FFD29373DCB
Violation when reading address 0x48
Code: 0xc0000005
Stack Trace:
at memset (0x00007ffd62c22f80)
at RtlRaiseException (0x00007ffd62be9e70)
at FMOD5_System_Update (0x00007ffd29314df0)
at FMOD5_System_Update (0x00007ffd29314df0)
at FMOD5_System_Update (0x00007ffd29314df0)
at FMOD_Studio_VCA_SetVolume (0x00007ffd2939e7e0)
at FMOD_Studio_VCA_SetVolume (0x00007ffd2939e7e0)
at FMOD5_System_Update (0x00007ffd29314df0)
at FMOD5_System_Update (0x00007ffd29314df0)
at FMOD_Studio_VCA_SetVolume (0x00007ffd2939e7e0)
at BaseThreadInitThunk (0x00007ffd60d67bc0)
at RtlUserThreadStart (0x00007ffd62bece30)

FATAL EXCEPTION at 0x00007FFE0CF445BC
Violation when reading address 0x218
Code: 0xc0000005
Stack Trace:
at memset (0x00007ffe54f71e40)
at RtlRaiseException (0x00007ffe54f1b040)
at FMOD::SystemI::validate (0x00007ffe0cf43510)
at FMOD::SystemI::createMemoryFile (0x00007ffe0cf59b40)
at FMOD::System::update (0x00007ffe0cf0e6b0)
at FMOD5_System_Update (0x00007ffe185a4df0)
at FMOD5_System_Update (0x00007ffe185a4df0)
at FMOD_Studio_VCA_SetVolume (0x00007ffe1862e7e0)
at FMOD_Studio_VCA_SetVolume (0x00007ffe1862e7e0)
at FMOD5_System_Update (0x00007ffe185a4df0)
at FMOD5_System_Update (0x00007ffe185a4df0)
at FMOD_Studio_VCA_SetVolume (0x00007ffe1862e7e0)
at BaseThreadInitThunk (0x00007ffe54476fc0)
at RtlUserThreadStart (0x00007ffe54f1cea0)

Violation when reading address 0xffffffffffffffff
Code: 0xc0000005
Stack Trace:
at memset (0x00007fff94c62f80)
at RtlRaiseException (0x00007fff94c29e70)
at FMOD::AsyncThread::wakeupThread (0x00007fff4d5531c0)
at FMOD::AsyncThread::wakeupThread (0x00007fff4d5531c0)
at FMOD::ChannelControl::stop (0x00007fff4d49f090)
at FMOD::AsyncThread::wakeupThread (0x00007fff4d5531c0)
at FMOD::SystemI::createMemoryFile (0x00007fff4d589b40)
at FMOD::System::update (0x00007fff4d53e6b0)
at FMOD5_System_Update (0x00007fff5a314df0)
at FMOD5_System_Update (0x00007fff5a314df0)
at FMOD_Studio_VCA_SetVolume (0x00007fff5a39e7e0)
at FMOD_Studio_VCA_SetVolume (0x00007fff5a39e7e0)
at FMOD5_System_Update (0x00007fff5a314df0)
at FMOD5_System_Update (0x00007fff5a314df0)
at FMOD_Studio_VCA_SetVolume (0x00007fff5a39e7e0)
at BaseThreadInitThunk (0x00007fff92d37bc0)
at RtlUserThreadStart (0x00007fff94c2ce30)

Any help is greatly appreciated :slight_smile:

Are you able to capture minidumps as part of your tools? If so, please send them to support@fmod.com and we can take a look into the cause of the crash.