Multiple crash regressions when upgrading from 1.08.15 to 1.09.05

FMOD Engine
1

Hey, we recently upgraded our FMOD library from “10815” to “10905” and we’re getting several in-dll FMOD crashes.

A few bits of relevant information:

  • These crashes are all in Windows.
  • All our sounds are using FMOD_ACCURATETIME and FMOD_NONBLOCKING modes.
  • These crashes are fairly uncommon - About several thousand crashes for several hundred thousand players over the span of a day.
  • These crashes did not occur in FMOD 10815.
  • I can provide PDB files over email.

If necessary, I can provide more information over email:
syang@roblox.com

Thanks!

Crash 1:
.dmp file: http://spotcos.com/fmod_crash/crash1/crash1.dmp
Stacktrace:
fmod!FMOD_File_SetDiskBusy+0x484c
fmod!FMOD_File_SetDiskBusy+0x1fca
fmod!FMOD::DSPConnection::setUserData+0x271b
fmod!FMOD::AsyncThread::wakeupThread+0x7c1f
fmod!FMOD::ChannelControl::stop+0x3892
fmod!FMOD::AsyncThread::wakeupThread+0x8520
fmod!FMOD::AsyncThread::wakeupThread+0x7e25
fmod!FMOD::ChannelControl::setPaused+0x4d
–Roblox Code–

Crash 2:
.dmp file: http://spotcos.com/fmod_crash/crash2/crash2.dmp
Stacktrace:
fmod!FMOD::DSPConnection::setUserData+0x2153
fmod!FMOD::AsyncThread::wakeupThread+0x1c5d
fmod!FMOD::AsyncThread::wakeupThread+0x7fd6
fmod!FMOD::Channel::setPosition+0x54
–Roblox Code–

Crash 3:
.dmp file: http://spotcos.com/fmod_crash/crash3/crash3.dmp
fmod!FMOD::AsyncThread::wakeupThread+0x1e06
fmod!FMOD::AsyncThread::wakeupThread+0x30c9
fmod!FMOD::AsyncThread::wakeupThread+0x83ae
fmod!FMOD::AsyncThread::wakeupThread+0x8ddb
fmod!FMOD::ChannelControl::stop+0x3944
fmod!FMOD::AsyncThread::wakeupThread+0x93b0
fmod!FMOD::SystemI::createMemoryFile+0x40f5
fmod!FMOD::SystemI::createMemoryFile+0x481f
fmod!FMOD::SoundI::setUserDataInternal+0x5bd7
–Roblox Code–

Crash 4:
.dmp file: http://spotcos.com/fmod_crash/crash4/crash4.dmp
fmod!FMOD::ChannelControl::stop+0x207d
fmod!FMOD::AsyncThread::wakeupThread+0x93b0
fmod!FMOD::AsyncThread::wakeupThread+0x8d23
fmod!FMOD::ChannelControl::setPaused+0x4d
–Roblox Code–

2

Could you try running with the logging version of FMOD? Do you see any ERR or ASSERT messages in the output?

3

Thanks to your provided crash dumps we were able to isolate the cause of this bug and it has been fixed for our next release.