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WinDBG info
Posted by Anonymous on Wed 18th Dec 2024 14:19
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view followups (newest first): wintar workaround, patch, crash, WinDBG info, 2024-12-18 by Anonymous

  1.  
  2. ************* Preparing the environment for Debugger Extensions Gallery repositories **************
  3.    ExtensionRepository : Implicit
  4.    UseExperimentalFeatureForNugetShare : true
  5.    AllowNugetExeUpdate : true
  6.    NonInteractiveNuget : true
  7.    AllowNugetMSCredentialProviderInstall : true
  8.    AllowParallelInitializationOfLocalRepositories : true
  9.    EnableRedirectToChakraJsProvider : false
  10.  
  11.    -- Configuring repositories
  12.       ----> Repository : LocalInstalled, Enabled: true
  13.       ----> Repository : UserExtensions, Enabled: true
  14.  
  15. >>>>>>>>>>>>> Preparing the environment for Debugger Extensions Gallery repositories completed, duration 0.000 seconds
  16.  
  17. ************* Waiting for Debugger Extensions Gallery to Initialize **************
  18.  
  19. >>>>>>>>>>>>> Waiting for Debugger Extensions Gallery to Initialize completed, duration 0.532 seconds
  20.    ----> Repository : UserExtensions, Enabled: true, Packages count: 0
  21.    ----> Repository : LocalInstalled, Enabled: true, Packages count: 42
  22.  
  23. Microsoft (R) Windows Debugger Version 10.0.27725.1000 AMD64
  24. Copyright (c) Microsoft Corporation. All rights reserved.
  25.  
  26.  
  27. Loading Dump File [C:\Windows\MEMORY.DMP]
  28. Kernel Bitmap Dump File: Kernel address space is available, User address space may not be available.
  29.  
  30.  
  31. ************* Path validation summary **************
  32. Response                         Time (ms)     Location
  33. Deferred                                       srv*
  34. OK                                             C:\cygwin64\home\roland_mainz\work\msnfs41_uidmapping\ms-nfs41-client\destdir\cygdrive\c\cygwin64\sbin
  35. OK                                             C:\cygwin64\home\roland_mainz\work\msnfs41_uidmapping\ms-nfs41-client\build.vc19\x64\Debug\nfs41_driver
  36. Symbol search path is: srv*;C:\cygwin64\home\roland_mainz\work\msnfs41_uidmapping\ms-nfs41-client\destdir\cygdrive\c\cygwin64\sbin;C:\cygwin64\home\roland_mainz\work\msnfs41_uidmapping\ms-nfs41-client\build.vc19\x64\Debug\nfs41_driver
  37. Executable search path is:
  38. Windows 10 Kernel Version 19041 MP (8 procs) Free x64
  39. Product: WinNt, suite: TerminalServer SingleUserTS
  40. Edition build lab: 19041.1.amd64fre.vb_release.191206-1406
  41. Kernel base = 0xfffff806`19400000 PsLoadedModuleList = 0xfffff806`1a02a3e0
  42. Debug session time: Wed Dec 18 11:50:41.555 2024 (UTC + 1:00)
  43. System Uptime: 0 days 0:09:39.323
  44. Loading Kernel Symbols
  45. ...............................................................
  46. ...........Page de19 not present in the dump file. Type ".hh dbgerr004" for details
  47. .....................................................
  48. ................................................................
  49. ......
  50. Loading User Symbols
  51.  
  52. Loading unloaded module list
  53. ......
  54. For analysis of this file, run !analyze -v
  55. nt!KeBugCheckEx:
  56. fffff806`197fe8f0 48894c2408      mov     qword ptr [rsp+8],rcx ss:0018:ffff9582`32c5a910=0000000000000050
  57. 1: kd> !analyze -v
  58. *******************************************************************************
  59. *                                                                             *
  60. *                        Bugcheck Analysis                                    *
  61. *                                                                             *
  62. *******************************************************************************
  63.  
  64. PAGE_FAULT_IN_NONPAGED_AREA (50)
  65. Invalid system memory was referenced.  This cannot be protected by try-except.
  66. Typically the address is just plain bad or it is pointing at freed memory.
  67. Arguments:
  68. Arg1: ffffc90145a8d000, memory referenced.
  69. Arg2: 0000000000000000, X64: bit 0 set if the fault was due to a not-present PTE.
  70.         bit 1 is set if the fault was due to a write, clear if a read.
  71.         bit 3 is set if the processor decided the fault was due to a corrupted PTE.
  72.         bit 4 is set if the fault was due to attempted execute of a no-execute PTE.
  73.         - ARM64: bit 1 is set if the fault was due to a write, clear if a read.
  74.         bit 3 is set if the fault was due to attempted execute of a no-execute PTE.
  75. Arg3: fffff8061ed3361d, If non-zero, the instruction address which referenced the bad memory
  76.         address.
  77. Arg4: 0000000000000000, (reserved)
  78.  
  79. Debugging Details:
  80. ------------------
  81.  
  82.  
  83. KEY_VALUES_STRING: 1
  84.  
  85.     Key  : AV.Type
  86.     Value: Read
  87.  
  88.     Key  : Analysis.CPU.mSec
  89.     Value: 2453
  90.  
  91.     Key  : Analysis.Elapsed.mSec
  92.     Value: 4796
  93.  
  94.     Key  : Analysis.IO.Other.Mb
  95.     Value: 0
  96.  
  97.     Key  : Analysis.IO.Read.Mb
  98.     Value: 3
  99.  
  100.     Key  : Analysis.IO.Write.Mb
  101.     Value: 2
  102.  
  103.     Key  : Analysis.Init.CPU.mSec
  104.     Value: 781
  105.  
  106.     Key  : Analysis.Init.Elapsed.mSec
  107.     Value: 5718
  108.  
  109.     Key  : Analysis.Memory.CommitPeak.Mb
  110.     Value: 99
  111.  
  112.     Key  : Analysis.Version.DbgEng
  113.     Value: 10.0.27725.1000
  114.  
  115.     Key  : Analysis.Version.Description
  116.     Value: 10.2408.27.01 amd64fre
  117.  
  118.     Key  : Analysis.Version.Ext
  119.     Value: 1.2408.27.1
  120.  
  121.     Key  : Bugcheck.Code.KiBugCheckData
  122.     Value: 0x50
  123.  
  124.     Key  : Bugcheck.Code.LegacyAPI
  125.     Value: 0x50
  126.  
  127.     Key  : Bugcheck.Code.TargetModel
  128.     Value: 0x50
  129.  
  130.     Key  : Failure.Bucket
  131.     Value: AV_R_(null)_nfs41_driver!nfs41_Write
  132.  
  133.     Key  : Failure.Hash
  134.     Value: {be85c6e9-381a-fb84-c448-edc4d53cac46}
  135.  
  136.     Key  : Hypervisor.Enlightenments.Value
  137.     Value: 12576
  138.  
  139.     Key  : Hypervisor.Enlightenments.ValueHex
  140.     Value: 3120
  141.  
  142.     Key  : Hypervisor.Flags.AnyHypervisorPresent
  143.     Value: 1
  144.  
  145.     Key  : Hypervisor.Flags.ApicEnlightened
  146.     Value: 0
  147.  
  148.     Key  : Hypervisor.Flags.ApicVirtualizationAvailable
  149.     Value: 0
  150.  
  151.     Key  : Hypervisor.Flags.AsyncMemoryHint
  152.     Value: 0
  153.  
  154.     Key  : Hypervisor.Flags.CoreSchedulerRequested
  155.     Value: 0
  156.  
  157.     Key  : Hypervisor.Flags.CpuManager
  158.     Value: 0
  159.  
  160.     Key  : Hypervisor.Flags.DeprecateAutoEoi
  161.     Value: 1
  162.  
  163.     Key  : Hypervisor.Flags.DynamicCpuDisabled
  164.     Value: 0
  165.  
  166.     Key  : Hypervisor.Flags.Epf
  167.     Value: 0
  168.  
  169.     Key  : Hypervisor.Flags.ExtendedProcessorMasks
  170.     Value: 0
  171.  
  172.     Key  : Hypervisor.Flags.HardwareMbecAvailable
  173.     Value: 0
  174.  
  175.     Key  : Hypervisor.Flags.MaxBankNumber
  176.     Value: 0
  177.  
  178.     Key  : Hypervisor.Flags.MemoryZeroingControl
  179.     Value: 0
  180.  
  181.     Key  : Hypervisor.Flags.NoExtendedRangeFlush
  182.     Value: 1
  183.  
  184.     Key  : Hypervisor.Flags.NoNonArchCoreSharing
  185.     Value: 0
  186.  
  187.     Key  : Hypervisor.Flags.Phase0InitDone
  188.     Value: 1
  189.  
  190.     Key  : Hypervisor.Flags.PowerSchedulerQos
  191.     Value: 0
  192.  
  193.     Key  : Hypervisor.Flags.RootScheduler
  194.     Value: 0
  195.  
  196.     Key  : Hypervisor.Flags.SynicAvailable
  197.     Value: 1
  198.  
  199.     Key  : Hypervisor.Flags.UseQpcBias
  200.     Value: 0
  201.  
  202.     Key  : Hypervisor.Flags.Value
  203.     Value: 536632
  204.  
  205.     Key  : Hypervisor.Flags.ValueHex
  206.     Value: 83038
  207.  
  208.     Key  : Hypervisor.Flags.VpAssistPage
  209.     Value: 1
  210.  
  211.     Key  : Hypervisor.Flags.VsmAvailable
  212.     Value: 0
  213.  
  214.     Key  : Hypervisor.RootFlags.AccessStats
  215.     Value: 0
  216.  
  217.     Key  : Hypervisor.RootFlags.CrashdumpEnlightened
  218.     Value: 0
  219.  
  220.     Key  : Hypervisor.RootFlags.CreateVirtualProcessor
  221.     Value: 0
  222.  
  223.     Key  : Hypervisor.RootFlags.DisableHyperthreading
  224.     Value: 0
  225.  
  226.     Key  : Hypervisor.RootFlags.HostTimelineSync
  227.     Value: 0
  228.  
  229.     Key  : Hypervisor.RootFlags.HypervisorDebuggingEnabled
  230.     Value: 0
  231.  
  232.     Key  : Hypervisor.RootFlags.IsHyperV
  233.     Value: 0
  234.  
  235.     Key  : Hypervisor.RootFlags.LivedumpEnlightened
  236.     Value: 0
  237.  
  238.     Key  : Hypervisor.RootFlags.MapDeviceInterrupt
  239.     Value: 0
  240.  
  241.     Key  : Hypervisor.RootFlags.MceEnlightened
  242.     Value: 0
  243.  
  244.     Key  : Hypervisor.RootFlags.Nested
  245.     Value: 0
  246.  
  247.     Key  : Hypervisor.RootFlags.StartLogicalProcessor
  248.     Value: 0
  249.  
  250.     Key  : Hypervisor.RootFlags.Value
  251.     Value: 0
  252.  
  253.     Key  : Hypervisor.RootFlags.ValueHex
  254.     Value: 0
  255.  
  256.     Key  : SecureKernel.HalpHvciEnabled
  257.     Value: 0
  258.  
  259.     Key  : WER.OS.Branch
  260.     Value: vb_release
  261.  
  262.     Key  : WER.OS.Version
  263.     Value: 10.0.19041.1
  264.  
  265.  
  266. BUGCHECK_CODE:  50
  267.  
  268. BUGCHECK_P1: ffffc90145a8d000
  269.  
  270. BUGCHECK_P2: 0
  271.  
  272. BUGCHECK_P3: fffff8061ed3361d
  273.  
  274. BUGCHECK_P4: 0
  275.  
  276. FILE_IN_CAB:  MEMORY.DMP
  277.  
  278. FAULTING_THREAD:  ffff9d89a3815080
  279.  
  280. READ_ADDRESS: unable to get nt!PspSessionIdBitmap
  281.  ffffc90145a8d000
  282.  
  283. MM_INTERNAL_CODE:  0
  284.  
  285. IMAGE_NAME:  nfs41_driver.sys
  286.  
  287. MODULE_NAME: nfs41_driver
  288.  
  289. FAULTING_MODULE: fffff8061ed20000 nfs41_driver
  290.  
  291. BLACKBOXBSD: 1 (!blackboxbsd)
  292.  
  293.  
  294. BLACKBOXNTFS: 1 (!blackboxntfs)
  295.  
  296.  
  297. BLACKBOXWINLOGON: 1
  298.  
  299. PROCESS_NAME:  System
  300.  
  301. TRAP_FRAME:  ffff958232c5abb0 -- (.trap 0xffff958232c5abb0)
  302. NOTE: The trap frame does not contain all registers.
  303. Some register values may be zeroed or incorrect.
  304. rax=ffffc90145a8d000 rbx=0000000000000000 rcx=00000000000000f1
  305. rdx=0000000000000010 rsi=0000000000000000 rdi=0000000000000000
  306. rip=fffff8061ed3361d rsp=ffff958232c5ad40 rbp=ffff9d89a64b6aa0
  307.  r8=cfffffffffffffff  r9=fffff57aa7626910 r10=fffff8061a04f5c0
  308. r11=fffff57abd5eafff r12=0000000000000000 r13=0000000000000000
  309. r14=0000000000000000 r15=0000000000000000
  310. iopl=0         nv up ei ng nz na po cy
  311. nfs41_driver!nfs41_Write+0x46d:
  312. fffff806`1ed3361d 0fb600          movzx   eax,byte ptr [rax] ds:ffffc901`45a8d000=??
  313. Resetting default scope
  314.  
  315. STACK_TEXT:  
  316. ffff9582`32c5a908 fffff806`19846095     : 00000000`00000050 ffffc901`45a8d000 00000000`00000000 ffff9582`32c5abb0 : nt!KeBugCheckEx
  317. ffff9582`32c5a910 fffff806`19638cd0     : ffff9d89`a3815080 00000000`00000000 ffff9582`32c5ac30 00000000`00000000 : nt!MiSystemFault+0x1ce5f5
  318. ffff9582`32c5aa10 fffff806`1980ea6d     : ffff9d89`aa48d010 0000000f`ffffffff ffff9582`32c5aca9 00000000`00000000 : nt!MmAccessFault+0x400
  319. ffff9582`32c5abb0 fffff806`1ed3361d     : ffff9d89`a9105aa0 ffffae0e`00000010 0000021d`52627400 ffff9d89`aa48d010 : nt!KiPageFault+0x36d
  320. ffff9582`32c5ad40 fffff806`1ed53844     : ffff9d89`aa48d010 ffff9d89`00000000 ffff9d89`00000000 00000000`00000001 : nfs41_driver!nfs41_Write+0x46d [C:\cygwin64\home\roland_mainz\work\msnfs41_uidmapping\ms-nfs41-client\sys\nfs41sys_readwrite.c @ 438]
  321. ffff9582`32c5ae70 fffff806`1ed5ee3a     : ffffae0e`fa405660 ffff9d89`a64b6aa0 ffff9d89`a64b6aa0 fffff806`1ed3b3bd : nfs41_driver!RxLowIoSubmit+0x2d4 [base\fs\rdr2\rxce\lowio.c @ 805]
  322. ffff9582`32c5aed0 fffff806`1ed5e8af     : ffff9d89`aa48d010 ffff9d89`a64b6aa0 ffff9d89`a64b6aa0 00000000`00000004 : nfs41_driver!RxLowIoWriteShell+0x9a [base\fs\rdr2\rdbss\write.c @ 2095]
  323. ffff9582`32c5af20 fffff806`1ed3b262     : ffff9d89`aa48d010 ffff9d89`a64b6aa0 ffff9d89`a61e0000 00000000`00000001 : nfs41_driver!RxCommonWrite+0x1a2f [base\fs\rdr2\rdbss\write.c @ 1508]
  324. ffff9582`32c5b0f0 fffff806`1ed5696d     : fffff806`1ed49160 00000000`00000000 00000000`00000000 ffff9d89`a61e0060 : nfs41_driver!RxFsdCommonDispatch+0x442 [base\fs\rdr2\rdbss\ntfsd.c @ 848]
  325. ffff9582`32c5b1f0 fffff806`1ed28077     : ffff9d89`a36c5b00 ffff9d89`a33f6160 ffff9d89`a9d94ba0 ffff9d89`a9d94ca8 : nfs41_driver!RxFsdDispatch+0xfd [base\fs\rdr2\rdbss\ntfsd.c @ 442]
  326. ffff9582`32c5b220 fffff806`1964a295     : ffff9d89`a61e0060 ffff9d89`a64b6aa0 ffff9d89`a38156d0 fffff806`19659bbb : nfs41_driver!nfs41_FsdDispatch+0x67 [C:\cygwin64\home\roland_mainz\work\msnfs41_uidmapping\ms-nfs41-client\sys\nfs41sys_driver.c @ 962]
  327. ffff9582`32c5b260 fffff806`1cd7f248     : fffff806`1cd78000 00000000`00000000 ffff9d89`a3f53910 ffff9d89`aa45faa8 : nt!IofCallDriver+0x55
  328. ffff9582`32c5b2a0 fffff806`1cd7ed99     : ffffae0e`f455d420 ffff9d89`a390e4c0 fffff806`1cd78000 00000000`00000000 : mup!MupiCallUncProvider+0xb8
  329. ffff9582`32c5b310 fffff806`1cd7ecce     : ffff9d89`a64b6aa0 ffff9d89`aa45faa0 ffff9d89`abd0e5b0 00000000`00000000 : mup!MupStateMachine+0x59
  330. ffff9582`32c5b340 fffff806`1964a295     : 00000000`00000000 00000000`00000000 ffff9d89`a36c5b00 fffff806`16085021 : mup!MupFsdIrpPassThrough+0x17e
  331. ffff9582`32c5b3b0 fffff806`1608710f     : 00000000`00000006 00000000`00000000 ffff9d89`a9d83b50 fffff806`1964ec5c : nt!IofCallDriver+0x55
  332. ffff9582`32c5b3f0 fffff806`16084a43     : ffff9582`32c5b480 ffff9d89`a9105aa0 00000000`00000140 ffff9d89`a384bb40 : FLTMGR!FltpLegacyProcessingAfterPreCallbacksCompleted+0x28f
  333. ffff9582`32c5b460 fffff806`1964a295     : ffff9d89`a64b6aa0 fffff806`1964a2d7 00000000`00000004 00000000`00000004 : FLTMGR!FltpDispatch+0xa3
  334. ffff9582`32c5b4c0 fffff806`196b68e3     : ffff9d89`a9105aa0 ffff9d89`a64b6aa0 ffff9d89`abd0e5b0 ffff9582`32c5b580 : nt!IofCallDriver+0x55
  335. ffff9582`32c5b500 fffff806`19741dc8     : 00000000`00000000 ffff9582`32c5b5a0 ffff9d89`abd0e5b0 fffff806`19676175 : nt!IoSynchronousPageWriteEx+0x13b
  336. ffff9582`32c5b540 fffff806`19646312     : 00000000`00000011 ffffae0f`00ea3018 00000000`00001000 00000000`00000000 : nt!MiIssueSynchronousFlush+0x70
  337. ffff9582`32c5b5c0 fffff806`197034a9     : ffff9582`33053a88 00000000`00000000 00000000`00000000 00000000`00000000 : nt!MiFlushSectionInternal+0x862
  338. ffff9582`32c5b890 fffff806`19675a8d     : 00000000`00000001 ffff9d89`a3815080 00000000`0008d000 00000000`00001000 : nt!MmFlushSection+0xbd
  339. ffff9582`32c5b940 fffff806`19674bd4     : ffff9d89`a1cf4148 00000000`00000000 ffff9d89`00000001 00000000`00000000 : nt!CcFlushCachePriv+0x6cd
  340. ffff9582`32c5ba90 fffff806`196171c5     : ffff9d89`abe45880 fffff806`196fdc00 ffff9d89`a1a5ac01 00000000`00000000 : nt!CcWriteBehindInternal+0x1f4
  341. ffff9582`32c5bb70 fffff806`1975a165     : ffff9d89`a3815080 00000000`00000080 ffff9d89`a1a87080 00078404`ad9b3dfe : nt!ExpWorkerThread+0x105
  342. ffff9582`32c5bc10 fffff806`198078f8     : ffffc901`38fe3180 ffff9d89`a3815080 fffff806`1975a110 00000000`00000000 : nt!PspSystemThreadStartup+0x55
  343. ffff9582`32c5bc60 00000000`00000000     : ffff9582`32c5c000 ffff9582`32c56000 00000000`00000000 00000000`00000000 : nt!KiStartSystemThread+0x28
  344.  
  345.  
  346. FAULTING_SOURCE_LINE:  C:\cygwin64\home\roland_mainz\work\msnfs41_uidmapping\ms-nfs41-client\sys\nfs41sys_readwrite.c
  347.  
  348. FAULTING_SOURCE_FILE:  C:\cygwin64\home\roland_mainz\work\msnfs41_uidmapping\ms-nfs41-client\sys\nfs41sys_readwrite.c
  349.  
  350. FAULTING_SOURCE_LINE_NUMBER:  438
  351.  
  352. FAULTING_SOURCE_CODE:  
  353.    434:
  354.    435:     long long cp_max = LowIoContext->ParamsFor.ReadWrite.ByteCount;
  355.    436:
  356.    437:     for (cp_i = 0 ; cp_i < cp_max ; cp_i++) {
  357. >  438:         tmpbyte = *cp_src++;
  358.    439:
  359.    440:         *cp_dest++ = tmpbyte;
  360.    441:     }
  361.    442: #else
  362.    443:     (void)RtlCopyMemory(userbuffer_mem,
  363.  
  364.  
  365. SYMBOL_NAME:  nfs41_driver!nfs41_Write+46d
  366.  
  367. STACK_COMMAND:  .process /r /p 0xffff9d89a1a87080; .thread 0xffff9d89a3815080 ; kb
  368.  
  369. BUCKET_ID_FUNC_OFFSET:  46d
  370.  
  371. FAILURE_BUCKET_ID:  AV_R_(null)_nfs41_driver!nfs41_Write
  372.  
  373. OS_VERSION:  10.0.19041.1
  374.  
  375. BUILDLAB_STR:  vb_release
  376.  
  377. OSPLATFORM_TYPE:  x64
  378.  
  379. OSNAME:  Windows 10
  380.  
  381. FAILURE_ID_HASH:  {be85c6e9-381a-fb84-c448-edc4d53cac46}
  382.  
  383. Followup:     MachineOwner
  384. ---------
  385.  
  386. 1: kd> kp
  387.  # Child-SP          RetAddr               Call Site
  388. 00 ffff9582`32c5a908 fffff806`19846095     nt!KeBugCheckEx
  389. 01 ffff9582`32c5a910 fffff806`19638cd0     nt!MiSystemFault+0x1ce5f5
  390. 02 ffff9582`32c5aa10 fffff806`1980ea6d     nt!MmAccessFault+0x400
  391. 03 ffff9582`32c5abb0 fffff806`1ed3361d     nt!KiPageFault+0x36d
  392. 04 ffff9582`32c5ad40 fffff806`1ed53844     nfs41_driver!nfs41_Write(struct _RX_CONTEXT * RxContext = 0xffff9d89`aa48d010)+0x46d [C:\cygwin64\home\roland_mainz\work\msnfs41_uidmapping\ms-nfs41-client\sys\nfs41sys_readwrite.c @ 438]
  393. 05 ffff9582`32c5ae70 fffff806`1ed5ee3a     nfs41_driver!RxLowIoSubmit(struct _RX_CONTEXT * RxContext = 0xffff9d89`aa48d010, struct _IRP * Irp = 0xffff9d89`a64b6aa0, struct _FCB * Fcb = 0xffffae0e`fa405660, <function> * CompletionRoutine = 0xfffff57a`a7626910)+0x2d4 [base\fs\rdr2\rxce\lowio.c @ 805]
  394. 06 ffff9582`32c5aed0 fffff806`1ed5e8af     nfs41_driver!RxLowIoWriteShell(struct _RX_CONTEXT * RxContext = 0xffff9d89`aa48d010, struct _IRP * Irp = 0xffff9d89`a64b6aa0, struct _FCB * Fcb = 0xffffae0e`fa405660)+0x9a [base\fs\rdr2\rdbss\write.c @ 2095]
  395. 07 ffff9582`32c5af20 fffff806`1ed3b262     nfs41_driver!RxCommonWrite(struct _RX_CONTEXT * RxContext = 0xffff9d89`aa48d010, struct _IRP * Irp = 0xffff9d89`a64b6aa0)+0x1a2f [base\fs\rdr2\rdbss\write.c @ 1508]
  396. 08 ffff9582`32c5b0f0 fffff806`1ed5696d     nfs41_driver!RxFsdCommonDispatch(struct _RX_FSD_DISPATCH_VECTOR * DispatchVector = 0xfffff806`1ed49160, struct _IRP * Irp = 0xffff9d89`a64b6aa0, struct _FILE_OBJECT * FileObject = 0x00000000`00000000, struct _RDBSS_DEVICE_OBJECT * RxDeviceObject = 0xffff9d89`a61e0060)+0x442 [base\fs\rdr2\rdbss\ntfsd.c @ 848]
  397. 09 ffff9582`32c5b1f0 fffff806`1ed28077     nfs41_driver!RxFsdDispatch(struct _RDBSS_DEVICE_OBJECT * RxDeviceObject = <Value unavailable error>, struct _IRP * Irp = <Value unavailable error>)+0xfd [base\fs\rdr2\rdbss\ntfsd.c @ 442]
  398. 0a ffff9582`32c5b220 fffff806`1964a295     nfs41_driver!nfs41_FsdDispatch(struct _DEVICE_OBJECT * dev = 0xffff9d89`a61e0060 Device for "\FileSystem\nfs41_driver", struct _IRP * Irp = 0xffff9d89`a64b6aa0)+0x67 [C:\cygwin64\home\roland_mainz\work\msnfs41_uidmapping\ms-nfs41-client\sys\nfs41sys_driver.c @ 962]
  399. 0b ffff9582`32c5b260 fffff806`1cd7f248     nt!IofCallDriver+0x55
  400. 0c ffff9582`32c5b2a0 fffff806`1cd7ed99     mup!MupiCallUncProvider+0xb8
  401. 0d ffff9582`32c5b310 fffff806`1cd7ecce     mup!MupStateMachine+0x59
  402. 0e ffff9582`32c5b340 fffff806`1964a295     mup!MupFsdIrpPassThrough+0x17e
  403. 0f ffff9582`32c5b3b0 fffff806`1608710f     nt!IofCallDriver+0x55
  404. 10 ffff9582`32c5b3f0 fffff806`16084a43     FLTMGR!FltpLegacyProcessingAfterPreCallbacksCompleted+0x28f
  405. 11 ffff9582`32c5b460 fffff806`1964a295     FLTMGR!FltpDispatch+0xa3
  406. 12 ffff9582`32c5b4c0 fffff806`196b68e3     nt!IofCallDriver+0x55
  407. 13 ffff9582`32c5b500 fffff806`19741dc8     nt!IoSynchronousPageWriteEx+0x13b
  408. 14 ffff9582`32c5b540 fffff806`19646312     nt!MiIssueSynchronousFlush+0x70
  409. 15 ffff9582`32c5b5c0 fffff806`197034a9     nt!MiFlushSectionInternal+0x862
  410. 16 ffff9582`32c5b890 fffff806`19675a8d     nt!MmFlushSection+0xbd
  411. 17 ffff9582`32c5b940 fffff806`19674bd4     nt!CcFlushCachePriv+0x6cd
  412. 18 ffff9582`32c5ba90 fffff806`196171c5     nt!CcWriteBehindInternal+0x1f4
  413. 19 ffff9582`32c5bb70 fffff806`1975a165     nt!ExpWorkerThread+0x105
  414. 1a ffff9582`32c5bc10 fffff806`198078f8     nt!PspSystemThreadStartup+0x55
  415. 1b ffff9582`32c5bc60 00000000`00000000     nt!KiStartSystemThread+0x28
  416. 1: kd> .frame 0n4;dv /t /v
  417. 04 ffff9582`32c5ad40 fffff806`1ed53844     nfs41_driver!nfs41_Write+0x46d [C:\cygwin64\home\roland_mainz\work\msnfs41_uidmapping\ms-nfs41-client\sys\nfs41sys_readwrite.c @ 438]
  418. ffff9582`32c5ae70 struct _RX_CONTEXT * RxContext = 0xffff9d89`aa48d010
  419. ffff9582`32c5add8 struct _NFS41_FOBX * nfs41_fobx = 0xffffae0e`fa405b30
  420. ffff9582`32c5ade8 struct _NFS41_V_NET_ROOT_EXTENSION * pVNetRootContext = 0xffff9d89`a9d527b0
  421. ffff9582`32c5ae10 struct _NFS41_FCB * nfs41_fcb = 0xffffae0e`fa405900
  422. ffff9582`32c5adc0 struct _MDL * userbuffer_mdl = 0xffff9d89`a9566010
  423. ffff9582`32c5ae40 struct _NFS41_NETROOT_EXTENSION * pNetRootContext = 0xffff9d89`a9de43d0
  424. ffff9582`32c5ae08 char * cp_dest = 0xffff9d89`a44fc000 ""
  425. ffff9582`32c5ae50 int64 cp_max = 0n577536
  426. ffff9582`32c5ada8 struct _updowncall_entry * entry = 0xffff9d89`a8ee2e50
  427. ffff9582`32c5ade0 unsigned long mdl_bytecount = 0x8d000
  428. ffff9582`32c5ada0 struct _LOWIO_CONTEXT * LowIoContext = 0xffff9d89`aa48d1a8
  429. ffff9582`32c5ae38 void * Src = 0xffffc901`45a00000
  430. ffff9582`32c5adb8 struct _MRX_SRV_OPEN_ * SrvOpen = 0xffffae0e`fa405960
  431. ffff9582`32c5adb0 char tmpbyte = 0n-15 ''
  432. ffff9582`32c5ad94 long status = 0n0
  433. ffff9582`32c5adc8 unsigned long padded_readwrite_bytecount = 0x8d100
  434. ffff9582`32c5ad90 unsigned char async = 0x00 ''
  435. ffff9582`32c5adf0 unsigned long io_delay = 0
  436. ffff9582`32c5add0 void * userbuffer_mem = 0xffff9d89`a4470000
  437. ffff9582`32c5adf8 int64 cp_i = 0n573440
  438. ffff9582`32c5ae00 char * cp_src = 0xffffc901`45a8d000 "--- memory read error at address 0xffffc901`45a8d000 ---"
  439. 1: kd> dt -r LowIoContext
  440. Local var @ 0xffff958232c5ada0 Type _LOWIO_CONTEXT*
  441. 0xffff9d89`aa48d1a8
  442.    +0x000 Operation        : 1
  443.    +0x002 Flags            : 0
  444.    +0x008 CompletionRoutine : 0xfffff806`1ed5eeb0     long  nfs41_driver!RxLowIoWriteShellCompletion+0
  445.    +0x010 Resource         : 0xffff9d89`a1cf41c8 _ERESOURCE
  446.       +0x000 SystemResourcesList : _LIST_ENTRY [ 0xffff9d89`a1cf42b0 - 0xffff9d89`a1cf4160 ]
  447.          +0x000 Flink            : 0xffff9d89`a1cf42b0 _LIST_ENTRY [ 0xffff9d89`a8fe2690 - 0xffff9d89`a1cf41c8 ]
  448.          +0x008 Blink            : 0xffff9d89`a1cf4160 _LIST_ENTRY [ 0xffff9d89`a1cf41c8 - 0xffff9d89`a7dcb750 ]
  449.       +0x010 OwnerTable       : (null)
  450.       +0x018 ActiveCount      : 0n1
  451.       +0x01a Flag             : 0
  452.       +0x01a ReservedLowFlags : 0 ''
  453.       +0x01b WaiterPriority   : 0 ''
  454.       +0x020 SharedWaiters    : (null)
  455.       +0x028 ExclusiveWaiters : (null)
  456.       +0x030 OwnerEntry       : _OWNER_ENTRY
  457.          +0x000 OwnerThread      : 0xffff9d89`a3815080
  458.          +0x008 IoPriorityBoosted : 0y0
  459.          +0x008 OwnerReferenced  : 0y0
  460.          +0x008 IoQoSPriorityBoosted : 0y0
  461.          +0x008 OwnerCount       : 0y00000000000000000000000000010 (0x2)
  462.          +0x008 TableSize        : 0x10
  463.       +0x040 ActiveEntries    : 1
  464.       +0x044 ContentionCount  : 0
  465.       +0x048 NumberOfSharedWaiters : 0
  466.       +0x04c NumberOfExclusiveWaiters : 0
  467.       +0x050 Reserved2        : (null)
  468.       +0x058 Address          : (null)
  469.       +0x058 CreatorBackTraceIndex : 0
  470.       +0x060 SpinLock         : 0
  471.    +0x018 ResourceThreadId : 0xffff9d89`a3815080
  472.    +0x020 ParamsFor        : <anonymous-tag>
  473.       +0x000 ReadWrite        : <anonymous-tag>
  474.          +0x000 Flags            : 1
  475.          +0x008 Buffer           : 0xffff9d89`a9105aa0 _MDL
  476.          +0x010 ByteOffset       : 0n4096
  477.          +0x018 ByteCount        : 0x8d000
  478.          +0x01c Key              : 0
  479.          +0x020 NonPagedFcb      : (null)
  480.       +0x000 Locks            : <anonymous-tag>
  481.          +0x000 LockList         : 0x00000000`00000001 _LOWIO_LOCK_LIST
  482.          +0x000 Length           : 0n1
  483.          +0x008 Flags            : 0xa9105aa0
  484.          +0x010 ByteOffset       : 0n4096
  485.          +0x018 Key              : 0x8d000
  486.       +0x000 FsCtl            : _XXCTL_LOWIO_COMPONENT
  487.          +0x000 Flags            : 1
  488.          +0x004 FsControlCode    : 0
  489.          +0x004 IoControlCode    : 0
  490.          +0x008 InputBufferLength : 0xa9105aa0
  491.          +0x010 pInputBuffer     : 0x00000000`00001000 Void
  492.          +0x018 OutputBufferLength : 0x8d000
  493.          +0x020 pOutputBuffer    : (null)
  494.          +0x028 MinorFunction    : 0 ''
  495.       +0x000 IoCtl            : _XXCTL_LOWIO_COMPONENT
  496.          +0x000 Flags            : 1
  497.          +0x004 FsControlCode    : 0
  498.          +0x004 IoControlCode    : 0
  499.          +0x008 InputBufferLength : 0xa9105aa0
  500.          +0x010 pInputBuffer     : 0x00000000`00001000 Void
  501.          +0x018 OutputBufferLength : 0x8d000
  502.          +0x020 pOutputBuffer    : (null)
  503.          +0x028 MinorFunction    : 0 ''
  504.       +0x000 NotifyChangeDirectory : <anonymous-tag>
  505.          +0x000 WatchTree        : 0x1 ''
  506.          +0x004 CompletionFilter : 0
  507.          +0x008 NotificationBufferLength : 0xa9105aa0
  508.          +0x010 pNotificationBuffer : 0x00000000`00001000 Void
  509. 1: kd> dx -id 0,0,ffff9d89a1a87080 -r1 ((nfs41_driver!_MDL *)0xffff9d89a9105aa0)
  510. ((nfs41_driver!_MDL *)0xffff9d89a9105aa0)                 : 0xffff9d89a9105aa0 [Type: _MDL *]
  511.     [+0x000] Next             : 0x0 [Type: _MDL *]
  512.     [+0x008] Size             : 1176 [Type: short]
  513.     [+0x00a] MdlFlags         : 3 [Type: short]
  514.     [+0x010] Process          : 0x0 [Type: _EPROCESS *]
  515.     [+0x018] MappedSystemVa   : 0xffffc90145a00000 [Type: void *]
  516.     [+0x020] StartVa          : 0x0 [Type: void *]
  517.     [+0x028] ByteCount        : 0x8d000 [Type: unsigned long]
  518.     [+0x02c] ByteOffset       : 0x0 [Type: unsigned long]

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