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I just experienced my 6th crash (over ~1 year period) directly attributed to CoveFS driver. To devs: please improve the stability of driver. I will only use the StableBit Troubleshooter if I can review the information it sends before sending it. Otherwise, without confirmation of complete data anonymity, I will not use it. Here is the crash dump:

Crash Dump Analysis
--------------------------------------------------------------------------------

Crash dumps are enabled on your computer. 

Crash dump directories: 
C:\Windows
C:\Windows\Minidump

On Sat 25/04/2026 01:53:16 your computer crashed or a problem was reported

Crash dump file:  C:\Windows\Minidump\042526-117328-01.dmp (Minidump)  
Bugcheck code:  0x44(0xFFFF9108203DB720, 0x1269, 0x0, 0x0) 
Bugcheck name: MULTIPLE_IRP_COMPLETE_REQUESTS 
Bug check description: This indicates that a driver has tried to requested an IRP be completed that is already complete. 
Analysis: This is a typical software problem. Most likely this is caused by a bug in a driver. 
 
  


On Sat 25/04/2026 01:53:16 your computer crashed or a problem was reported

Crash dump file:  C:\Windows\MEMORY.DMP (Kernel memory dump)  
Bugcheck code:  0x44(0xFFFF9108203DB720, 0x1269, 0x0, 0x0) 
Bugcheck name: MULTIPLE_IRP_COMPLETE_REQUESTS 
Driver or module in which error occurred:  covefs.sys (covefs+0x998D) 
File path: C:\Windows\system32\drivers\covefs.sys 
Description:  CoveFS File System Driver 
Product:  CoveFS 
Company:  Covecube Inc. 
Bug check description: This indicates that a driver has tried to requested an IRP be completed that is already complete. 
Analysis: This is a typical software problem. Most likely this is caused by a bug in a driver. A third party driver was identified as the probable root cause of this system error. 
It is suggested you look for an update for the following driver: 
covefs.sys (CoveFS File System Driver, Covecube Inc.). 
 
Google query: covefs Covecube Inc. MULTIPLE_IRP_COMPLETE_REQUESTS

 

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WinDbg:

 

ExtensionGallery settings after reading 'SOFTWARE\Microsoft\Debug Engine' registry:
ExtensionGallery ExtensionRepository: Implicit

************* Preparing the environment for Debugger Extensions Gallery repositories **************
   ExtensionRepository : Implicit
   UseExperimentalFeatureForNugetShare : true
   AllowNugetExeUpdate : true
   NonInteractiveNuget : true
   AllowNugetMSCredentialProviderInstall : true
   AllowParallelInitializationOfLocalRepositories : true
   EnableRedirectToChakraJsProvider : false

   -- Configuring repositories
      ----> Repository : LocalInstalled, Enabled: true
      ----> Repository : UserExtensions, Enabled: true

>>>>>>>>>>>>> Preparing the environment for Debugger Extensions Gallery repositories completed, duration 0.000 seconds

************* Waiting for Debugger Extensions Gallery to Initialize **************

>>>>>>>>>>>>> Waiting for Debugger Extensions Gallery to Initialize completed, duration 0.015 seconds
   ----> Repository : UserExtensions, Enabled: true, Packages count: 0
   ----> Repository : LocalInstalled, Enabled: true, Packages count: 46

Microsoft (R) Windows Debugger Version 10.0.29547.1002 AMD64
Copyright (c) Microsoft Corporation. All rights reserved.


Loading Dump File [C:\Windows\MEMORY.DMP]
Kernel Bitmap Dump File: Kernel address space is available, User address space may not be available.

Symbol search path is: srv*
Executable search path is: 
Windows 10 Kernel Version 19041 MP (24 procs) Free x64
Product: WinNt, suite: TerminalServer SingleUserTS
Edition build lab: 19041.1.amd64fre.vb_release.191206-1406
Kernel base = 0xfffff803`7ce00000 PsLoadedModuleList = 0xfffff803`7da2a8c0
Debug session time: Sat Apr 25 01:53:16.210 2026 (UTC + 2:00)
System Uptime: 8 days 7:56:57.750
Loading Kernel Symbols
...............................................................
................................................................
................................................................
......................................................
Loading User Symbols
PEB is paged out (Peb.Ldr = 000000fd`b29ba018).  Type ".hh dbgerr001" for details
Loading unloaded module list
.............................
For analysis of this file, run !analyze -v
nt!KeBugCheckEx:
fffff803`7d1fdef0 48894c2408      mov     qword ptr [rsp+8],rcx ss:ffffb30b`c77b3080=0000000000000044
0: kd> !analyze -v
Loading Kernel Symbols
...............................................................
................................................................
................................................................
......................................................
Loading User Symbols
PEB is paged out (Peb.Ldr = 000000fd`b29ba018).  Type ".hh dbgerr001" for details
Loading unloaded module list
.............................
*******************************************************************************
*                                                                             *
*                        Bugcheck Analysis                                    *
*                                                                             *
*******************************************************************************

MULTIPLE_IRP_COMPLETE_REQUESTS (44)
A driver has requested that an IRP be completed (IoCompleteRequest()), but
the packet has already been completed.  This is a tough bug to find because
the easiest case, a driver actually attempted to complete its own packet
twice, is generally not what happened.  Rather, two separate drivers each
believe that they own the packet, and each attempts to complete it.  The
first actually works, and the second fails.  Tracking down which drivers
in the system actually did this is difficult, generally because the trails
of the first driver have been covered by the second.  However, the driver
stack for the current request can be found by examining the DeviceObject
fields in each of the stack locations.
Arguments:
Arg1: ffff9108203db720, Address of the IRP
Arg2: 0000000000001269
Arg3: 0000000000000000
Arg4: 0000000000000000

Debugging Details:
------------------

Unable to load image \??\C:\Windows\system32\drivers\covefs.sys, Win32 error 0n2
*** WARNING: Check Image - Checksum mismatch - Dump: 0xeb2e, File: 0xcaa1 - C:\ProgramData\Dbg\sym\hal.dll\1A7BE8E96000\hal.dll

KEY_VALUES_STRING: 1

    Key  : Analysis.CPU.mSec
    Value: 1250

    Key  : Analysis.Elapsed.mSec
    Value: 6203

    Key  : Analysis.IO.Other.Mb
    Value: 10

    Key  : Analysis.IO.Read.Mb
    Value: 1

    Key  : Analysis.IO.Write.Mb
    Value: 25

    Key  : Analysis.Init.CPU.mSec
    Value: 671

    Key  : Analysis.Init.Elapsed.mSec
    Value: 30723

    Key  : Analysis.Memory.CommitPeak.Mb
    Value: 90

    Key  : Analysis.Version.DbgEng
    Value: 10.0.29547.1002

    Key  : Analysis.Version.Description
    Value: 10.2602.27.2 amd64fre

    Key  : Analysis.Version.Ext
    Value: 1.2602.27.2

    Key  : Bugcheck.Code.KiBugCheckData
    Value: 0x44

    Key  : Bugcheck.Code.LegacyAPI
    Value: 0x44

    Key  : Bugcheck.Code.TargetModel
    Value: 0x44

    Key  : Failure.Bucket
    Value: 0x44_nt!IofCompleteRequest

    Key  : Failure.Hash
    Value: {10bf0b0b-4caf-2e9c-30ae-ac07c3e144ed}

    Key  : Hypervisor.Enlightenments.Value
    Value: 77057948

    Key  : Hypervisor.Enlightenments.ValueHex
    Value: 0x497cf9c

    Key  : Hypervisor.Flags.AnyHypervisorPresent
    Value: 1

    Key  : Hypervisor.Flags.ApicEnlightened
    Value: 1

    Key  : Hypervisor.Flags.ApicVirtualizationAvailable
    Value: 0

    Key  : Hypervisor.Flags.AsyncMemoryHint
    Value: 0

    Key  : Hypervisor.Flags.CoreSchedulerRequested
    Value: 0

    Key  : Hypervisor.Flags.CpuManager
    Value: 1

    Key  : Hypervisor.Flags.DeprecateAutoEoi
    Value: 0

    Key  : Hypervisor.Flags.DynamicCpuDisabled
    Value: 1

    Key  : Hypervisor.Flags.Epf
    Value: 0

    Key  : Hypervisor.Flags.ExtendedProcessorMasks
    Value: 1

    Key  : Hypervisor.Flags.HardwareMbecAvailable
    Value: 1

    Key  : Hypervisor.Flags.MaxBankNumber
    Value: 0

    Key  : Hypervisor.Flags.MemoryZeroingControl
    Value: 0

    Key  : Hypervisor.Flags.NoExtendedRangeFlush
    Value: 0

    Key  : Hypervisor.Flags.NoNonArchCoreSharing
    Value: 1

    Key  : Hypervisor.Flags.Phase0InitDone
    Value: 1

    Key  : Hypervisor.Flags.PowerSchedulerQos
    Value: 0

    Key  : Hypervisor.Flags.RootScheduler
    Value: 0

    Key  : Hypervisor.Flags.SynicAvailable
    Value: 1

    Key  : Hypervisor.Flags.UseQpcBias
    Value: 0

    Key  : Hypervisor.Flags.Value
    Value: 4853999

    Key  : Hypervisor.Flags.ValueHex
    Value: 0x4a10ef

    Key  : Hypervisor.Flags.VpAssistPage
    Value: 1

    Key  : Hypervisor.Flags.VsmAvailable
    Value: 1

    Key  : Hypervisor.RootFlags.AccessStats
    Value: 1

    Key  : Hypervisor.RootFlags.CrashdumpEnlightened
    Value: 1

    Key  : Hypervisor.RootFlags.CreateVirtualProcessor
    Value: 1

    Key  : Hypervisor.RootFlags.DisableHyperthreading
    Value: 0

    Key  : Hypervisor.RootFlags.HostTimelineSync
    Value: 1

    Key  : Hypervisor.RootFlags.HypervisorDebuggingEnabled
    Value: 0

    Key  : Hypervisor.RootFlags.IsHyperV
    Value: 1

    Key  : Hypervisor.RootFlags.LivedumpEnlightened
    Value: 1

    Key  : Hypervisor.RootFlags.MapDeviceInterrupt
    Value: 1

    Key  : Hypervisor.RootFlags.MceEnlightened
    Value: 1

    Key  : Hypervisor.RootFlags.Nested
    Value: 0

    Key  : Hypervisor.RootFlags.StartLogicalProcessor
    Value: 1

    Key  : Hypervisor.RootFlags.Value
    Value: 1015

    Key  : Hypervisor.RootFlags.ValueHex
    Value: 0x3f7

    Key  : SecureKernel.HalpHvciEnabled
    Value: 0

    Key  : WER.OS.Branch
    Value: vb_release

    Key  : WER.OS.Version
    Value: 10.0.19041.1

    Key  : WER.System.BIOSRevision
    Value: 5.35.0.0


BUGCHECK_CODE:  44

BUGCHECK_P1: ffff9108203db720

BUGCHECK_P2: 1269

BUGCHECK_P3: 0

BUGCHECK_P4: 0

FILE_IN_CAB:  MEMORY.DMP

FAULTING_THREAD:  ffff9107fd0d55c0

IRP_ADDRESS: ffff9108203db720

PROCESS_NAME:  qbittorrent.exe

STACK_TEXT:  
ffffb30b`c77b3078 fffff803`7d044a5e     : 00000000`00000044 ffff9108`203db720 00000000`00001269 00000000`00000000 : nt!KeBugCheckEx
ffffb30b`c77b3080 fffff803`7d0434a7     : ffff9108`203db720 ffffdf0a`71890901 ffffdf0a`92e03790 ffffdf0a`718909c0 : nt!IopfCompleteRequest+0x159e
ffffb30b`c77b3180 fffff803`7d1f0a11     : 00000000`00000018 ffffdf0a`92e03790 ffffdf0a`92e03790 ffff9108`203db720 : nt!IofCompleteRequest+0x17
ffffb30b`c77b31b0 fffff803`7d1553aa     : ffffdf0a`92e037c8 00000000`00000000 ffff9107`cf0b8e00 ffffdf0a`92e03790 : nt!FsRtlpRemoveAndCompleteRHIrp+0x159
ffffb30b`c77b31f0 fffff803`7d4b873e     : 00000000`00000000 ffff9107`cf0b8e50 ffff9107`cf0b8ab0 ffffdf0a`00000000 : nt!FsRtlpOplockBreakByCacheFlags+0x59a
ffffb30b`c77b32c0 fffff803`7bbf43c8     : 00000000`00000001 ffff9107`cf0b8a00 ffff9107`c0000043 ffff9108`1cbe12c8 : nt!FsRtlOplockBreakH+0x11e
ffffb30b`c77b3380 fffff803`7bbf3e67     : 00000000`00000080 00000000`00000008 ffffb30b`c77b3c20 ffffdf0a`000000e8 : Ntfs!NtfsOpenExistingAttr+0x2c8
ffffb30b`c77b3440 fffff803`7bbf267a     : ffffb30b`c77b3c20 ffffdf08`62a8db40 ffffdf0a`7a9e0660 ffffdf0a`7a9e0660 : Ntfs!NtfsOpenAttributeInExistingFile+0xae7
ffffb30b`c77b3630 fffff803`7bbe630f     : ffff9108`1cbe12c8 ffff9107`d7e9e4f0 ffffdf08`3a11a7c0 ffffdf0a`84465c01 : Ntfs!NtfsOpenExistingPrefixFcb+0x22a
ffffb30b`c77b3740 fffff803`7bbe7210     : ffff9108`1cbe12c8 ffff9107`cf0b8ab0 00000000`00000003 ffffb30b`c77b39e0 : Ntfs!NtfsFindStartingNode+0x3ff
ffffb30b`c77b3830 fffff803`7bbe26bb     : ffff9107`cf0b8ab0 ffffb30b`c77b3c20 ffff9107`cf0b8ab0 00000000`00000000 : Ntfs!NtfsCommonCreate+0x580
ffffb30b`c77b3b10 fffff803`7d151a25     : ffff9107`d7e9d030 ffff9107`cf0b8ab0 ffffb30b`c77b3e00 ffff9108`2c0072a0 : Ntfs!NtfsFsdCreate+0x1db
ffffb30b`c77b3d90 fffff803`7ae8710f     : ffff9108`2c007300 ffffb30b`c77b3e80 ffffb30b`c77b3e89 fffff803`7ae85f7a : nt!IofCallDriver+0x55
ffffb30b`c77b3dd0 fffff803`7aeb9ee4     : ffffb30b`c77b3e80 ffff9108`2c0072f8 ffff9107`d5fc77d0 00000000`00000000 : FLTMGR!FltpLegacyProcessingAfterPreCallbacksCompleted+0x28f
ffffb30b`c77b3e40 fffff803`7d151a25     : 00000000`00000000 ffff9107`cb8ecc40 00000000`00000000 00000000`00000000 : FLTMGR!FltpCreate+0x324
ffffb30b`c77b3ef0 fffff803`7d1538e4     : ffff9108`2c0072a0 fffff803`7d7b418e ffff9107`cb8ecc40 fffff803`7d153513 : nt!IofCallDriver+0x55
ffffb30b`c77b3f30 fffff803`7d502109     : ffffb30b`c77b41e0 ffff9107`cb8ecc40 ffff9108`2c007338 00000000`00000240 : nt!IoCallDriverWithTracing+0x34
ffffb30b`c77b3f80 fffff803`7d4f5037     : ffff9107`cb8ecc40 ffff9107`cb8ecc10 ffff9107`d280b6a0 ffff9107`b91faa00 : nt!IopParseDevice+0x11a9
ffffb30b`c77b40e0 fffff803`7d455eca     : ffff9107`d280b601 ffffb30b`c77b4348 ffff9108`00000240 ffff9107`b91faae0 : nt!ObpLookupObjectName+0x1117
ffffb30b`c77b42b0 fffff803`7d40bfd1     : 00000000`00000000 ffffb30b`c77b4778 ffffb30b`c77b46f8 00000000`00000000 : nt!ObOpenObjectByNameEx+0x1fa
ffffb30b`c77b43e0 fffff803`7d40b38d     : ffffb30b`c77b4618 ffffb30b`00010080 ffffb30b`c77b4778 ffffb30b`c77b46f8 : nt!IopCreateFile+0xb11
ffffb30b`c77b4490 fffff803`c55d998d     : 00000000`00000001 00000000`00000008 00000000`00000000 00000000`00000001 : nt!IoCreateFileEx+0x11d
ffffb30b`c77b4530 fffff803`c55db592     : 00000000`00000000 fffff803`c5604d70 00000000`00000000 ffff9107`d7fb29f0 : covefs+0x998d
ffffb30b`c77b4840 fffff803`7d12a078     : 00000000`00000008 ffff9107`cf069010 ffff9107`00000000 00000000`01200040 : covefs+0xb592
ffffb30b`c77b4910 fffff803`7d0d3375     : fffff803`c55db4d0 ffffb30b`c77b4b50 00000000`00000000 00000000`01200000 : nt!KeExpandKernelStackAndCalloutInternal+0x78
ffffb30b`c77b4980 fffff803`c55dd092     : ffff9107`d7fb2990 00000000`00000000 ffffffff`ee1e5d00 ffff9107`d7fb2010 : nt!KeExpandKernelStackAndCallout+0x15
ffffb30b`c77b49c0 fffff803`7d151a25     : ffff9107`d7fb1040 ffff9107`e16cd2a0 ffffb30b`c77b4d00 ffff9108`2c004600 : covefs+0xd092
ffffb30b`c77b4c80 fffff803`7ae8710f     : ffff9108`2c004700 ffffb30b`c77b4d70 ffffb30b`c77b4d79 fffff803`7ae85f7a : nt!IofCallDriver+0x55
ffffb30b`c77b4cc0 fffff803`7aeb9ee4     : ffffb30b`c77b4d70 ffff9108`2c004738 ffff9107`d2440da0 00000000`00000000 : FLTMGR!FltpLegacyProcessingAfterPreCallbacksCompleted+0x28f
ffffb30b`c77b4d30 fffff803`7d151a25     : ffffdf08`00000000 ffff9107`d55f3c00 00000000`00000000 00000000`00000000 : FLTMGR!FltpCreate+0x324
ffffb30b`c77b4de0 fffff803`7d1538e4     : ffff9108`2c0046e0 fffff803`7d7b418e ffff9107`d55f3c00 fffff803`7d153513 : nt!IofCallDriver+0x55
ffffb30b`c77b4e20 fffff803`7d502109     : ffffb30b`c77b50d0 ffff9107`d55f3c00 ffff9108`2c004778 00000000`00000040 : nt!IoCallDriverWithTracing+0x34
ffffb30b`c77b4e70 fffff803`7d4f5037     : ffff9107`d55f3c00 ffff9107`d55f3bd0 ffff9108`38080550 ffffdf08`387af301 : nt!IopParseDevice+0x11a9
ffffb30b`c77b4fd0 fffff803`7d455eca     : ffff9108`38080501 ffffb30b`c77b5238 ffff9107`00000040 ffff9107`b91faae0 : nt!ObpLookupObjectName+0x1117
ffffb30b`c77b51a0 fffff803`7d40bfd1     : 00000000`00000000 000000fd`b2eff408 000000fd`b2eff3c8 00000000`00000000 : nt!ObOpenObjectByNameEx+0x1fa
ffffb30b`c77b52d0 fffff803`7d40b418     : 000000fd`b2eff498 ffffb30b`00010080 000000fd`b2eff408 000000fd`b2eff3c8 : nt!IopCreateFile+0xb11
ffffb30b`c77b5380 fffff803`7d21270b     : 00000000`00000000 fffff803`7d3aa427 ffff9107`fd0d55c0 00000000`00000000 : nt!NtOpenFile+0x58
ffffb30b`c77b5410 00007ffb`fbe8dcb4     : 00000000`00000000 00000000`00000000 00000000`00000000 00000000`00000000 : nt!KiSystemServiceExitPico+0x41f
000000fd`b2eff388 00000000`00000000     : 00000000`00000000 00000000`00000000 00000000`00000000 00000000`00000000 : 0x00007ffb`fbe8dcb4


SYMBOL_NAME:  nt!IofCompleteRequest+17

MODULE_NAME: nt

IMAGE_NAME:  ntkrnlmp.exe

STACK_COMMAND: .process /r /p 0xffff9107deacf080; .thread /r /p 0xffff9107fd0d55c0 ; kb

BUCKET_ID_FUNC_OFFSET:  17

FAILURE_BUCKET_ID:  0x44_nt!IofCompleteRequest

OS_VERSION:  10.0.19041.1

BUILDLAB_STR:  vb_release

OSPLATFORM_TYPE:  x64

OSNAME:  Windows 10

FAILURE_ID_HASH:  {10bf0b0b-4caf-2e9c-30ae-ac07c3e144ed}

Followup:     MachineOwner
---------

 

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