Hi,
We are facing a random crash in a build made with Unity 2019.2.16f1.
With WinDbg, running !analyze -v after setting .sympath+ SRVc:\symbols-cachehttp://symbolserver.unity3d.com revealed this:
************* Path validation summary **************
Response Time (ms) Location
Deferred srv*
Deferred SRV*c:\symbols-cache*http://symbolserver.unity3d.com/
0:000> !analyze -v
*******************************************************************************
* *
* Exception Analysis *
* *
*******************************************************************************
*** WARNING: Unable to verify timestamp for T******.exe
*** WARNING: Unable to verify checksum for mono-2.0-bdwgc.dll
*** WARNING: Unable to verify timestamp for nvwgf2umx.dll
KEY_VALUES_STRING: 1
Key : AV.Dereference
Value: NullClassPtr
Key : AV.Fault
Value: Write
Key : Analysis.CPU.mSec
Value: 7593
Key : Analysis.DebugAnalysisManager
Value: Create
Key : Analysis.Elapsed.mSec
Value: 12858
Key : Analysis.Init.CPU.mSec
Value: 514
Key : Analysis.Init.Elapsed.mSec
Value: 56411
Key : Analysis.Memory.CommitPeak.Mb
Value: 322
Key : Timeline.Process.Start.DeltaSec
Value: 2123
Key : WER.OS.Branch
Value: vb_release
Key : WER.OS.Timestamp
Value: 2019-12-06T14:06:00Z
Key : WER.OS.Version
Value: 10.0.19041.1
Key : WER.Process.Version
Value: 2019.2.16.35214
CONTEXT: (.ecxr)
rax=0000000000000000 rbx=0000007eda1befe0 rcx=0000000000000001
rdx=0000022ca777d760 rsi=0000000000000001 rdi=0000000000000000
rip=00007ff9c5e90fce rsp=0000007eda1bed40 rbp=0000007eda1bee40
r8=0000022d0c46f800 r9=0000007eda1bec88 r10=0000000000000000
r11=0000007eda1beb80 r12=0000000000000000 r13=0000022ca6dfd278
r14=000000000000006e r15=0000000000000001
iopl=0 nv up ei pl nz na po cy
cs=0033 ss=002b ds=002b es=002b fs=0053 gs=002b efl=00010207
UnityPlayer!Animator::UpdateAvatars+0x89e:
00007ff9`c5e90fce c6405201 mov byte ptr [rax+52h],1 ds:00000000`00000052=??
Resetting default scope
EXCEPTION_RECORD: (.exr -1)
ExceptionAddress: 00007ff9c5e90fce (UnityPlayer!Animator::UpdateAvatars+0x000000000000089e)
ExceptionCode: c0000005 (Access violation)
ExceptionFlags: 00000000
NumberParameters: 2
Parameter[0]: 0000000000000001
Parameter[1]: 0000000000000052
Attempt to write to address 0000000000000052
PROCESS_NAME: T************.exe
WRITE_ADDRESS: 0000000000000052
ERROR_CODE: (NTSTATUS) 0xc0000005 - The instruction at 0x%p referenced memory at 0x%p. The memory could not be %s.
EXCEPTION_CODE_STR: c0000005
EXCEPTION_PARAMETER1: 0000000000000001
EXCEPTION_PARAMETER2: 0000000000000052
STACK_TEXT:
0000007e`da1bed40 00007ff9`c6626573 : 00000000`0000006e 00000000`00000000 00000000`00000000 00000000`00000000 : UnityPlayer!Animator::UpdateAvatars+0x89e
0000007e`da1bf080 00007ff9`c6528977 : 0000022c`b4d62880 00000000`00000000 0000022c`b4d628e8 0000022c`00000000 : UnityPlayer!DirectorManager::ExecuteStage+0x113
0000007e`da1bf0c0 00007ff9`c6528a19 : 00000000`ff515700 00007ff9`f6f5eb96 00000000`00000001 0000022c`b4d62748 : UnityPlayer!ExecutePlayerLoop+0x57
0000007e`da1bf270 00007ff9`c652aa12 : 00000000`0000097c 00000000`0000000a 00000000`00000000 00000000`0000097c : UnityPlayer!ExecutePlayerLoop+0xf9
0000007e`da1bf420 00007ff9`c62f3155 : 00000000`0000097c 00000000`00000000 00000000`00000000 00000000`0000000a : UnityPlayer!PlayerLoop+0x92
0000007e`da1bf4a0 00007ff9`c62f1bca : 00000000`0000097c 0000007e`da1bf640 00000000`00000000 00000000`00000000 : UnityPlayer!PerformMainLoop+0x1c5
0000007e`da1bf4d0 00007ff9`c62f5c01 : 00000000`00000001 00000000`00000000 0000007e`da1bf640 00000000`00000000 : UnityPlayer!MainMessageLoop+0xda
0000007e`da1bf540 00007ff9`c62f954b : 00000000`0000000a 00000000`00000000 00000000`00000000 00007ff7`e34eb278 : UnityPlayer!UnityMainImpl+0xce1
0000007e`da1cf8d0 00007ff7`e34e11f2 : 00000000`00000000 00000000`00000000 00000000`00000000 00000000`00000000 : UnityPlayer!UnityMain+0xb
0000007e`da1cf900 00000000`00000000 : 00000000`00000000 00000000`00000000 00000000`00000000 00000000`00000000 : T**********!__scrt_common_main_seh+0x106
FAULTING_SOURCE_LINE: c:\buildslave\unity\build\modules\animation\animator.cpp
FAULTING_SOURCE_FILE: c:\buildslave\unity\build\modules\animation\animator.cpp
FAULTING_SOURCE_LINE_NUMBER: 1230
FAULTING_SOURCE_CODE:
No source found for 'c:\buildslave\unity\build\modules\animation\animator.cpp'
SYMBOL_NAME: UnityPlayer!Animator::UpdateAvatars+89e
MODULE_NAME: UnityPlayer
IMAGE_NAME: UnityPlayer.dll
STACK_COMMAND: ~0s ; .ecxr ; kb
FAILURE_BUCKET_ID: NULL_CLASS_PTR_WRITE_c0000005_UnityPlayer.dll!Animator::UpdateAvatars
OS_VERSION: 10.0.19041.1
BUILDLAB_STR: vb_release
OSPLATFORM_TYPE: x64
OSNAME: Windows 10
IMAGE_VERSION: 2019.2.16.35214
FAILURE_ID_HASH: {e64e4571-00a2-1996-ee15-5e7807ea6cf9}
Followup: MachineOwner
---------What could be the cause of this crash?
Attached the crash.dmp.
7369430–898283–crash.zip (119 KB)