Crash, using udp - high throughput, many sockets, small TU

[Febbe]

ctsTraffic.exe crashes, when I try to recv 10 GBits/s with an TU of 1436 bytes (no jumbo packages and IP fragmentation) and e.g. 10 sockets (>2).

Executing ctsTraffic in the debuger with:

ctsTraffic.exe -target:192.168.137.1 -protocol:udp -bitspersecond:10000000000 -framerate:870000 -bufferdepth:1 -streamlength:60 -consoleverbosity:1 -connections:1 -iterations:1 -statusfilename:udpclient.csv -connectionfilename:udpconnection.csv

Produces the following output:

CommandLine: "ctsTraffic.exe" -target:192.168.137.1 -protocol:udp -bitspersecond:10000000000 -framerate:870000 -bufferdepth:1 -streamlength:60 -consoleverbosity:1 -connections:10 -iterations:1 -statusfilename:udpclient.csv -connectionfilename:udpconnection.csv
Symbol search path is: srv*
Executable search path is:
ModLoad: 00007ff7`5afc0000 00007ff7`5b066000   ctsTraffic.exe
ModLoad: 00007ff8`9b9f0000 00007ff8`9bbe6000   ntdll.dll
ModLoad: 00007ff8`99cd0000 00007ff8`99d8d000   C:\WINDOWS\System32\KERNEL32.DLL
ModLoad: 00007ff8`99550000 00007ff8`99819000   C:\WINDOWS\System32\KERNELBASE.dll
ModLoad: 00007ff8`9a740000 00007ff8`9a7ab000   C:\WINDOWS\System32\WS2_32.dll
ModLoad: 00007ff8`9aec0000 00007ff8`9afeb000   C:\WINDOWS\System32\RPCRT4.dll
ModLoad: 00007ff8`9a4e0000 00007ff8`9a60a000   C:\WINDOWS\System32\ole32.dll
ModLoad: 00007ff8`99450000 00007ff8`99550000   C:\WINDOWS\System32\ucrtbase.dll
ModLoad: 00007ff8`9b050000 00007ff8`9b3a6000   C:\WINDOWS\System32\combase.dll
ModLoad: 00007ff8`9a7b0000 00007ff8`9a7da000   C:\WINDOWS\System32\GDI32.dll
ModLoad: 00007ff8`99980000 00007ff8`999a2000   C:\WINDOWS\System32\win32u.dll
ModLoad: 00007ff8`99820000 00007ff8`9992b000   C:\WINDOWS\System32\gdi32full.dll
ModLoad: 00007ff8`999b0000 00007ff8`99a4d000   C:\WINDOWS\System32\msvcp_win.dll
ModLoad: 00007ff8`9b810000 00007ff8`9b9b0000   C:\WINDOWS\System32\USER32.dll
ModLoad: 00007ff8`9a7e0000 00007ff8`9a8ad000   C:\WINDOWS\System32\OLEAUT32.dll
ModLoad: 00007ff8`9a990000 00007ff8`9a9c0000   C:\WINDOWS\System32\IMM32.DLL
ModLoad: 00007ff8`99b60000 00007ff8`99c0c000   C:\WINDOWS\System32\advapi32.dll
ModLoad: 00007ff8`9a610000 00007ff8`9a6ae000   C:\WINDOWS\System32\msvcrt.dll
ModLoad: 00007ff8`99a50000 00007ff8`99aec000   C:\WINDOWS\System32\sechost.dll
ModLoad: 00007ff8`98a30000 00007ff8`98a3c000   C:\WINDOWS\SYSTEM32\CRYPTBASE.DLL
ModLoad: 00007ff8`992f0000 00007ff8`99370000   C:\WINDOWS\System32\bcryptPrimitives.dll
ModLoad: 00007ff8`97a50000 00007ff8`97a62000   C:\WINDOWS\SYSTEM32\kernel.appcore.dll
ModLoad: 00007ff8`99c20000 00007ff8`99cc9000   C:\WINDOWS\System32\clbcatq.dll
ModLoad: 00007ff8`8a360000 00007ff8`8a371000   C:\WINDOWS\system32\wbem\wbemprox.dll
ModLoad: 00007ff8`91990000 00007ff8`91a16000   C:\WINDOWS\SYSTEM32\wbemcomn.dll
ModLoad: 00007ff8`87fe0000 00007ff8`87ff4000   C:\WINDOWS\system32\wbem\wbemsvc.dll
ModLoad: 00007ff8`88500000 00007ff8`8860b000   C:\WINDOWS\system32\wbem\fastprox.dll
ModLoad: 00007ff8`86440000 00007ff8`86459000   C:\WINDOWS\SYSTEM32\amsi.dll
ModLoad: 00007ff8`99020000 00007ff8`9904e000   C:\WINDOWS\SYSTEM32\USERENV.dll
ModLoad: 00007ff8`99060000 00007ff8`99086000   C:\WINDOWS\SYSTEM32\profapi.dll
ModLoad: 00007ff8`863c0000 00007ff8`8643b000   C:\ProgramData\Microsoft\Windows Defender\platform\4.18.2101.9-0\MpOav.dll
ModLoad: 00007ff8`933b0000 00007ff8`933ba000   C:\WINDOWS\system32\version.dll
ModLoad: 00007ff8`82f20000 00007ff8`82f47000   C:\WINDOWS\SYSTEM32\WINMM.dll
ModLoad: 00007ff8`98840000 00007ff8`988aa000   C:\WINDOWS\system32\mswsock.dll
  Configured Settings
-----------------------
        Protocol: UDP
        Options: InlineIOCP SO_RCVBUF(1048576) MsgWaitAll
        IO function: MediaStream Client
        IoPattern: MediaStream <UDP controlled stream from server to client>
        PrePostRecvs: 2
        PrePostSends: 1
        Level of verification: Connections & Data
        Port: 4444
        Buffer used for each IO request: 1436 [0x59c] bytes
        Total transfer per connection: 74959200000 bytes
                UDP Stream BitsPerSecond: 10000000000 bits per second
                UDP Stream FrameRate: 870000 frames per second
                UDP Stream BufferDepth: 1 seconds
                UDP Stream StreamLength: 60 seconds (52200000 frames)
                UDP Stream FrameSize: 1436 bytes
        Connecting out to addresses:
                192.168.137.1:4444
        Binding to local addresses for outgoing connections:
                0.0.0.0
        Connection limit (maximum established connections): 10 [0xa]
        Connection throttling rate (maximum pended connection attempts): 1000 [0x3e8]
        Total outgoing connections before exit (iterations * concurrent connections) : 10 [0xa]

Legend:
* TimeSlice - (seconds) cumulative runtime
* Streams - count of current number of UDP streams
* Bits/Sec - bits streamed within the TimeSlice period
* Completed Frames - count of frames successfully processed within the TimeSlice
* Dropped Frames - count of frames that were never seen within the TimeSlice
* Repeated Frames - count of frames received multiple times within the TimeSlice
* Stream Errors - count of invalid frames or buffers within the TimeSlice


 TimeSlice       Bits/Sec    Streams   Completed   Dropped   Repeated    Errors

     0.084           1156         10           0         0          0         0
     5.099     2551142497         10      263859  34270851          0    852005
C:\Users\kehor\source\repos\ctsTraffic\ctsTraffic\ctsPrintStatus.hpp(307)\ctsTraffic.exe!00007FF75AFCAA63: (caller: 00007FF75AFCAC60) FailFast(1) tid(209c) 8000FFFF Schwerwiegender Fehler
    Msg:[Counting the string built by _ui64tow_s was greater than _value_length (7) : ctsUdpStatusInformation (00000175CCA62690)
]
(1fd4.209c): Security check failure or stack buffer overrun - code c0000409 (!!! second chance !!!)
KERNELBASE!RaiseFailFastException+0x15c:
00007ff8`9965bd5c 0f1f440000      nop     dword ptr [rax+rax]
0:011>