************* Path validation summary ************** Response Time (ms) Location Deferred srv* ************* Path validation summary ************** Response Time (ms) Location Deferred srv*https://msdl.microsoft.com/download/symbols ************* 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 0.438 seconds ----> Repository : UserExtensions, Enabled: true, Packages count: 0 ----> Repository : LocalInstalled, Enabled: true, Packages count: 46 Microsoft (R) Windows Debugger Version 10.0.29507.1001 AMD64 Copyright (c) Microsoft Corporation. All rights reserved. Loading Dump File [C:\Windows\Minidump\022726-8671-01.dmp] Mini Kernel Dump File: Only registers and stack trace are available ************* Path validation summary ************** Response Time (ms) Location Deferred srv*https://msdl.microsoft.com/download/symbols Symbol search path is: srv*https://msdl.microsoft.com/download/symbols Executable search path is: Windows 10 Kernel Version 26100 MP (8 procs) Free x64 Product: WinNt, suite: TerminalServer SingleUserTS Kernel base = 0xfffff803`90000000 PsLoadedModuleList = 0xfffff803`90ef5040 Debug session time: Fri Feb 27 11:47:48.626 2026 (UTC - 5:00) System Uptime: 0 days 19:43:37.359 Loading Kernel Symbols ............................................................... ................................................................ ................................................................ .................................. Loading User Symbols PEB address is NULL ! Loading unloaded module list ......................... For analysis of this file, run !analyze -v nt!KeBugCheckEx: fffff803`904fb8c0 48894c2408 mov qword ptr [rsp+8],rcx ss:0018:fffff88f`657614d0=0000000000000154 6: kd> !analyze -v Loading Kernel Symbols ............................................................... ................................................................ ................................................................ .................................. Loading User Symbols PEB address is NULL ! Loading unloaded module list ......................... ******************************************************************************* * * * Bugcheck Analysis * * * ******************************************************************************* UNEXPECTED_STORE_EXCEPTION (154) The store component caught an unexpected exception. Arguments: Arg1: ffffc7083f6cc000, Pointer to the store context or data manager Arg2: fffff88f65761580, Exception information Arg3: 0000000000000001, Reserved Arg4: 0000000000000000, Reserved Debugging Details: ------------------ KEY_VALUES_STRING: 1 Key : Analysis.CPU.mSec Value: 3593 Key : Analysis.Elapsed.mSec Value: 11803 Key : Analysis.IO.Other.Mb Value: 0 Key : Analysis.IO.Read.Mb Value: 1 Key : Analysis.IO.Write.Mb Value: 25 Key : Analysis.Init.CPU.mSec Value: 1343 Key : Analysis.Init.Elapsed.mSec Value: 44000 Key : Analysis.Memory.CommitPeak.Mb Value: 86 Key : Analysis.Version.DbgEng Value: 10.0.29507.1001 Key : Analysis.Version.Description Value: 10.2511.5.1 amd64fre Key : Analysis.Version.Ext Value: 1.2511.5.1 Key : Bugcheck.Code.LegacyAPI Value: 0x154 Key : Bugcheck.Code.TargetModel Value: 0x154 Key : Dump.Attributes.AsUlong Value: 0x21008 Key : Dump.Attributes.DiagDataWrittenToHeader Value: 1 Key : Dump.Attributes.ErrorCode Value: 0x0 Key : Dump.Attributes.KernelGeneratedTriageDump Value: 1 Key : Dump.Attributes.LastLine Value: Dump completed successfully. Key : Dump.Attributes.ProgressPercentage Value: 0 Key : Failure.Bucket Value: 0x154_c0000420_nt!ST_STORE_SM_TRAITS_::StDmPageRecordRemove Key : Failure.Exception.Code Value: 0xc0000420 Key : Failure.Exception.IP.Address Value: 0xfffff8039039d514 Key : Failure.Exception.IP.Module Value: nt Key : Failure.Exception.IP.Offset Value: 0x39d514 Key : Failure.Exception.Record Value: 0xfffff88f65762578 Key : Failure.Hash Value: {b82a73ea-d098-8451-8193-a5c6604483ac} Key : Faulting.IP.Type Value: Paged Key : WER.System.BIOSRevision Value: 23.0.0.0 BUGCHECK_CODE: 154 BUGCHECK_P1: ffffc7083f6cc000 BUGCHECK_P2: fffff88f65761580 BUGCHECK_P3: 1 BUGCHECK_P4: 0 FILE_IN_CAB: 022726-8671-01.dmp DUMP_FILE_ATTRIBUTES: 0x21008 Kernel Generated Triage Dump FAULTING_THREAD: ffffc7083f7743c0 EXCEPTION_RECORD: fffff88f65762578 -- (.exr 0xfffff88f65762578) ExceptionAddress: fffff8039039d514 (nt!ST_STORE::StDmPageRecordRemove+0x0000000000000394) ExceptionCode: c0000420 (Assertion failure) ExceptionFlags: 00000000 NumberParameters: 0 Assertion: (((NTSTATUS)(Status)) >= 0) EXCEPTION_PARAMETER1: 000000000000075c EXCEPTION_PARAMETER2: 0000000000000e64 CONTEXT: fffff88f65761d80 -- (.cxr 0xfffff88f65761d80) rax=ffffc708636d3e7c rbx=ffffc7083f6cc050 rcx=00000000ddc324ab rdx=ffffc70865103018 rsi=000000000009e133 rdi=0000000000000133 rip=fffff8039039d514 rsp=fffff88f657627b0 rbp=0000000000000000 r8=0000000000000018 r9=000000000000075c r10=0000000000000e64 r11=0000000000000009 r12=0000000000000400 r13=ffffc7083f6cc0d0 r14=000000000011aa9d r15=ffffc708636d3e7c iopl=0 nv up ei pl nz na po nc cs=0010 ss=0018 ds=002b es=002b fs=0053 gs=002b efl=00040206 nt!ST_STORE::StDmPageRecordRemove+0x394: fffff803`9039d514 cd2c int 2Ch Resetting default scope BLACKBOXBSD: 1 (!blackboxbsd) BLACKBOXNTFS: 1 (!blackboxntfs) BLACKBOXPNP: 1 (!blackboxpnp) BLACKBOXWINLOGON: 1 (!blackboxwinlogon) CUSTOMER_CRASH_COUNT: 1 PROCESS_NAME: MemCompression ERROR_CODE: (NTSTATUS) 0xc0000420 - An assertion failure has occurred. EXCEPTION_CODE_STR: c0000420 EXCEPTION_STR: 0xc0000420 IP_IN_PAGED_CODE: nt!ST_STORE::StDmPageRecordRemove+394 fffff803`9039d514 cd2c int 2Ch STACK_TEXT: fffff88f`657627b0 fffff803`9039f071 : ffffc708`3f6cc050 ffffc708`636d3e7c ffffc708`3f6cc050 ffffc708`00000001 : nt!ST_STORE::StDmPageRecordRemove+0x394 fffff88f`65762850 fffff803`9029d355 : 00000000`00000001 ffffc708`3f6cc000 ffffc708`576e7690 fffff803`9029da22 : nt!ST_STORE::StDmPageRemove+0x8d1 fffff88f`65762980 fffff803`9029ccbb : 00000000`00000000 fffff803`00000000 ffffc708`5b8f7d90 00000000`00000000 : nt!ST_STORE::StWorkItemProcess+0x245 fffff88f`65762a20 fffff803`904a17df : fffff981`00000000 00000000`00000001 ffffffff`fffdb610 00000000`00000000 : nt!SMKM_STORE::SmStWorker+0x3bb fffff88f`65762ac0 fffff803`9048966a : ffffc708`3f6cc000 fffff803`904a17b0 ffffb200`9a7d1180 024fa4ef`b59bbfff : nt!SMKM_STORE::SmStWorkerThread+0x2f fffff88f`65762af0 fffff803`906ab774 : ffffb200`9a7d1180 ffffc708`3f7743c0 fffff803`90489610 00000000`00000000 : nt!PspSystemThreadStartup+0x5a fffff88f`65762b40 00000000`00000000 : fffff88f`65763000 fffff88f`6575c000 00000000`00000000 00000000`00000000 : nt!KiStartSystemThread+0x34 SYMBOL_NAME: nt!ST_STORE::StDmPageRecordRemove+394 MODULE_NAME: nt IMAGE_NAME: ntkrnlmp.exe IMAGE_VERSION: 10.0.26100.7824 STACK_COMMAND: .cxr 0xfffff88f65761d80 ; kb BUCKET_ID_FUNC_OFFSET: 394 FAILURE_BUCKET_ID: 0x154_c0000420_nt!ST_STORE_SM_TRAITS_::StDmPageRecordRemove OSPLATFORM_TYPE: x64 OSNAME: Windows 10 FAILURE_ID_HASH: {b82a73ea-d098-8451-8193-a5c6604483ac} Followup: MachineOwner ---------