Internal Error: DynamoRIO debug check failure: ...\core\win32\ntdll.c:5218 res >= 0 && len <= MAX_CONTEXT_SIZE

[Robert-M-Muench]

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Dr. Memory Notice: D:\develop\rm-asset\nlpp\release\nlpp_debug_3.5.0.9.exe(5436)
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Application D:\develop\rm-asset\nlpp\release\nlpp_debug_3.5.0.9.exe (5436).  Internal Error: DynamoRIO debug check failure: D:\drmemory_package\dynamorio\core\win32\ntdll.c:5218 res >= 0 && len <= MAX_CONTEXT_SIZE
(Error occurred @0 frags)
2.2.0-1-(Jul  1 2019 00:43:22) WinVer=105;Rel=1903;Build=18362;Edition=Core
-no_dynamic_options -logdir 'C:\Users\robby\AppData\Roaming\Dr. Memory\dynamorio' -client_lib 'C:\Program Files (x86)\DrMemory\bin\debug\drmemorylib.dll;0;-suppress `D:\develop\rm-asset\nlpp\release\suppress.txt` -logdir `C:\Users\robby\AppData\Roaming\Dr. Memory` -symcache_dir `C:\Users\robby\AppData\Roaming\Dr. Memory\
0x0077f5e4 0x665acc83
0x0077f718 0x667b2ba3
0x0077f754 0x66778c67
0x0077fc64 0x6676b977
0x0077fca4 0x664efe18
0x0077fcd8 0x66751342
0x0077fd44 0x66751ac8
C:\Program Files (x86)\DrMemory\bin\debug\drmemorylib.dll=0x73800000
C:\Program Files (x86)\DrMemory\bin\debug/dbghelp.dll=0x66b40000
C:\WINDOWS/system32/ADVAPI32.dll=0x029c0000
C:\WINDOWS/system32/sechost.dll=0x02b20000
C:\WINDOWS/system32/RPCRT4.dll=0x02e90000
C:\WINDOWS/system32/SspiCli.dll=0x02f50000
C:\WINDOWS/system32/CRYPTBASE.dll=0x02a40000
C:\WINDOWS/system32/bcryptPrimitives.dll=0x02f70000
C:\WINDOWS/system32/msvcrt.dll=0x02a60000
C:\W
---------------------------
OK   
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[derekbruening]

Please provide info on what processor is in the machine where this was hit. What is the return value of RtlGetExtendedContextLength() on that processor? I assume this only reproduces on that particular hardware.

[Robert-M-Muench]

All running in a virtual machine on OSX: Intel Xeon W-2191B, 23GHz, 8GB assigned

I couldn't find any docs for RtlGetExtendedContextLength(), so what parameters to call it and what's the return type/value?

[derekbruening]

Dr. Memory is calling it. It's the line in the assert: https://github.com/DynamoRIO/dynamorio/blob/master/core/win32/ntdll.c#L5217
Its value could be obtained by attached a debugger at the assert point (perhaps by asking for a pause there via -dr_ops "-msgbox_mask 12") or modifying the code to print it out. Presumably its value is larger than any seen by anyone else.

[Cecil-Huang]

I just got similar error on Windows 10 Enterprise version 1511 (Intel(R) Core(TM) i7-6700 CPU @ 3.40GHz 3.41 GHz)
with -dr_debug

with -debug option I got an assert error
spill.c:102: ok (fatal error: unable to reserve tls slots)

[derekbruening]

DynamoRIO/dynamorio#2666 is the DR feature request to address these issues