Random Matlab Crash when using for/parfor loops for many times

I run a permutation test code which includes a huge for/parfor loop. MATLAB then starts to crash randomly (longer or shorter after I start running). Can anyone help? Thank you very much.

MATLAB Log File: C:\Users\ADMINI~1\AppData\Local\Temp\matlab_crash_dump.46788-1

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MATLAB Log File

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Access violation detected at 2025-06-21 12:46:22 +0800

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Configuration:

Crash Decoding : Disabled - No sandbox or build area path

Crash Mode : continue (default)

Default Encoding : UTF-8

Deployed : false

Graphics Driver : Uninitialized hardware

Graphics card 1 : NVIDIA ( 0x10de ) NVIDIA GeForce RTX 3080 Version 32.0.15.7680 (2025-6-12)

MATLAB Architecture : win64

MATLAB Entitlement ID : 3633949

MATLAB Root : E:\MATLAB2025a

MATLAB Version : 25.1.0.2943329 (R2025a)

OpenGL : hardware

Operating System : Microsoft Windows 11 专业版

Process ID : 46788

Processor ID : x86 Family 6 Model 183 Stepping 1, GenuineIntel

Session Key : 7j442y3njn97ss1rasbn58b4a

Window System : Version 10.0 (Build 22621)

Fault Count: 1

Abnormal termination:

Access violation

Current Thread: 'MCR 0 interpreter thread' id 47260

Register State (from fault):

RAX = 0000000000000000 RBX = 000002a497142240

RCX = 0000000000001a38 RDX = 0ffffffffffff000

RSP = 000000c32d2faef0 RBP = 000002a49e8ced40

RSI = 000002a49e8ced40 RDI = 000002a49e8ced40

R8 = 0000000000000000 R9 = 0000000000000010

R10 = 000002a497143a88 R11 = 000000000000000b

R12 = 000002a3e430f568 R13 = 00007ffbd5b19590

R14 = 000002a3b99f8660 R15 = 000002a49e8d9880

RIP = 00007ffc28227013 EFL = 00010202

CS = 0033 FS = 0053 GS = 002b

Stack Trace (from fault):

[ 0] 0x00007ffc28227013 E:\MATLAB2025a\bin\win64\libmx.dll+02846739 matrix::detail::noninlined::mx_array_api::mxCreateSharedCopyNotOnArrayList+00000019

[ 1] 0x00007ffbd59a589c E:\MATLAB2025a\bin\win64\mcos_impl.dll+05200028 createScalarDefaultPropValue+00407500

[ 2] 0x00007ffbd55f9864 E:\MATLAB2025a\bin\win64\mcos_impl.dll+01349732 mwboost::serialization::singleton_module::unlock+00792868

[ 3] 0x00007ffbd56976ea E:\MATLAB2025a\bin\win64\mcos_impl.dll+01996522 mwboost::archive::codecvt_null<wchar_t>::do_out+00605706

[ 4] 0x00007ffbd5717973 E:\MATLAB2025a\bin\win64\mcos_impl.dll+02521459 mcos::impl::terminateFcn+00107587

[ 5] 0x00007ffbd59024c5 E:\MATLAB2025a\bin\win64\mcos_impl.dll+04531397 mwboost::archive::detail::oserializer<mwboost::archive::text_oarchive,MathWorks::MatlabComponents::ComponentIdentifier>::save_object_data+00411493

[ 6] 0x00007ffbd5718e98 E:\MATLAB2025a\bin\win64\mcos_impl.dll+02526872 mcos::impl::terminateFcn+00113000

[ 7] 0x00007ffbd57191b5 E:\MATLAB2025a\bin\win64\mcos_impl.dll+02527669 mcos::impl::terminateFcn+00113797

[ 8] 0x00007ffbd5932e9d E:\MATLAB2025a\bin\win64\mcos_impl.dll+04730525 namedArgsToCell+00011469

[ 9] 0x00007ffbd5953072 E:\MATLAB2025a\bin\win64\mcos_impl.dll+04862066 createScalarDefaultPropValue+00069538

[ 10] 0x00007ffc4c67e809 E:\MATLAB2025a\bin\win64\mcos.dll+00190473 omDirectSetProperty+00000057

[ 11] 0x00007ffc2fe282d3 E:\MATLAB2025a\bin\win64\libmwlxeindexing.dll+00754387 MathWorks::lxe::McosModuleImplementation::DirectSetProperty+00000051

[ 12] 0x00007ffc2fe158e4 E:\MATLAB2025a\bin\win64\libmwlxeindexing.dll+00678116 MathWorks::lxe::RegisterLazyColonIndexingClasses+00129636

[ 13] 0x00007ffc2fec456d E:\MATLAB2025a\bin\win64\libmwlxeindexing.dll+01394029 MathWorks::lxe::set_ldot_pointer_for_builtin_subsasgn+00008365

[ 14] 0x00007ffc2fec3f1c E:\MATLAB2025a\bin\win64\libmwlxeindexing.dll+01392412 MathWorks::lxe::set_ldot_pointer_for_builtin_subsasgn+00006748

[ 15] 0x00007ffc2fec4e0b E:\MATLAB2025a\bin\win64\libmwlxeindexing.dll+01396235 MathWorks::lxe::set_ldot_pointer_for_builtin_subsasgn+00010571

[ 16] 0x00007ffc2fece7f8 E:\MATLAB2025a\bin\win64\libmwlxeindexing.dll+01435640 MathWorks::lxe::assign_dot_guarantee_id_pointer_mcos+00000104

[ 17] 0x00007ffbe14460f5 E:\MATLAB2025a\bin\win64\m_lxe.dll+05529845 MathWorks::lxe::XvalueFactory::XvalueDeleter::XvalueDeleter+00267509

[ 18] 0x00007ffbe1466c11 E:\MATLAB2025a\bin\win64\m_lxe.dll+05663761 MathWorks::lxe::XvalueFactory::XvalueDeleter::XvalueDeleter+00401425

[ 19] 0x00007ffbe1308fa7 E:\MATLAB2025a\bin\win64\m_lxe.dll+04231079 MathWorks::lxe::GetTag+00007591

[ 20] 0x00007ffbe12f1edf E:\MATLAB2025a\bin\win64\m_lxe.dll+04136671 MathWorks::lxe::SetEngineImplUnlinkFlagForAllCallsOnStack+00045903

[ 21] 0x00007ffbe12f6455 E:\MATLAB2025a\bin\win64\m_lxe.dll+04154453 MathWorks::lxe::SetEngineImplUnlinkFlagForAllCallsOnStack+00063685

[ 22] 0x00007ffc34c55226 E:\MATLAB2025a\bin\win64\libmwlxemainservices.dll+01528358 FeatureTestObservableWorkspace+00215846

[ 23] 0x00007ffc34b8cee6 E:\MATLAB2025a\bin\win64\libmwlxemainservices.dll+00708326 mwboost::archive::detail::pointer_oserializer<mwboost::archive::xml_oarchive,MathWorks::lxe::PreLineExecutionEvent>::save_object_ptr+00078390

[ 24] 0x00007ffc34b8e9f4 E:\MATLAB2025a\bin\win64\libmwlxemainservices.dll+00715252 mwboost::archive::detail::pointer_oserializer<mwboost::archive::xml_oarchive,MathWorks::lxe::PreLineExecutionEvent>::save_object_ptr+00085316

[ 25] 0x00007ffc34c17797 E:\MATLAB2025a\bin\win64\libmwlxemainservices.dll+01275799 mwboost::archive::detail::oserializer<mwboost::archive::text_oarchive,MathWorks::MatlabComponents::ComponentIdentifier>::save_object_data+00360391

[ 26] 0x00007ffc34c19597 E:\MATLAB2025a\bin\win64\libmwlxemainservices.dll+01283479 mwboost::archive::detail::oserializer<mwboost::archive::text_oarchive,MathWorks::MatlabComponents::ComponentIdentifier>::save_object_data+00368071

[ 27] 0x00007ffc34c18880 E:\MATLAB2025a\bin\win64\libmwlxemainservices.dll+01280128 mwboost::archive::detail::oserializer<mwboost::archive::text_oarchive,MathWorks::MatlabComponents::ComponentIdentifier>::save_object_data+00364720

[ 28] 0x00007ffc63f79f99 E:\MATLAB2025a\bin\win64\libmwbridge.dll+00303001 mnGetPrompt+00014009

[ 29] 0x00007ffbecb1b7e6 E:\MATLAB2025a\bin\win64\iqm.dll+00505830 iqm::Iqm::instance+00002358

[ 30] 0x00007ffbecb75382 E:\MATLAB2025a\bin\win64\iqm.dll+00873346 iqm::UserEvalPlugin::execute+00001314

[ 31] 0x00007ffbecb4267f E:\MATLAB2025a\bin\win64\iqm.dll+00665215 iqm::Iqm::setupIqmFcnPtrs+00111535

[ 32] 0x00007ffbecb4e71d E:\MATLAB2025a\bin\win64\iqm.dll+00714525 iqm::Iqm::setupIqmFcnPtrs+00160845

[ 33] 0x00007ffbecb0eb7b E:\MATLAB2025a\bin\win64\iqm.dll+00453499 iqm::Iqm::create+00010523

[ 34] 0x00007ffc63f497e6 E:\MATLAB2025a\bin\win64\libmwbridge.dll+00104422 ioReadLine+00000406

[ 35] 0x00007ffc63f49615 E:\MATLAB2025a\bin\win64\libmwbridge.dll+00103957 ioReadLine+00000165

[ 36] 0x00007ffc63f7a360 E:\MATLAB2025a\bin\win64\libmwbridge.dll+00303968 mnGetCommandLineBuffer+00000288

[ 37] 0x00007ffc63f7a807 E:\MATLAB2025a\bin\win64\libmwbridge.dll+00305159 mnParser+00000487

[ 38] 0x00007ffc6404c56f E:\MATLAB2025a\bin\win64\mcr.dll+00443759 mcr_initialize_main+00011855

[ 39] 0x00007ffc63ff5e2e E:\MATLAB2025a\bin\win64\mcr.dll+00089646 mcrFunctionSignature::set_signature+00066462

[ 40] 0x00007ffc6400f572 E:\MATLAB2025a\bin\win64\mcr.dll+00193906 mwboost::archive::codecvt_null<wchar_t>::`default constructor closure'+00015762

[ 41] 0x00007ffbecb702da E:\MATLAB2025a\bin\win64\iqm.dll+00852698 iqm::PackagedTaskPlugin::execute+00000074

[ 42] 0x00007ffbecb4267f E:\MATLAB2025a\bin\win64\iqm.dll+00665215 iqm::Iqm::setupIqmFcnPtrs+00111535

[ 43] 0x00007ffbecb0f49a E:\MATLAB2025a\bin\win64\iqm.dll+00455834 iqm::Iqm::create+00012858

[ 44] 0x00007ffbecb0f981 E:\MATLAB2025a\bin\win64\iqm.dll+00457089 iqm::Iqm::create+00014113

[ 45] 0x00007ffbecb0ee0d E:\MATLAB2025a\bin\win64\iqm.dll+00454157 iqm::Iqm::create+00011181

[ 46] 0x00007ffc6402921c E:\MATLAB2025a\bin\win64\mcr.dll+00299548 mcrInstantiationError::operator=+00010668

[ 47] 0x00007ffc64029cdf E:\MATLAB2025a\bin\win64\mcr.dll+00302303 mcrInstantiationError::operator=+00013423

[ 48] 0x00007ffc640272e1 E:\MATLAB2025a\bin\win64\mcr.dll+00291553 mcrInstantiationError::operator=+00002673

[ 49] 0x00007ffc8cf28fba E:\MATLAB2025a\bin\win64\mwboost_thread-vc143-mt-x64-1_81.dll+00036794 mwboost::detail::win32::handle_manager::swap+00000650

[ 50] 0x00007ffca9f69333 C:\Windows\System32\ucrtbase.dll+00168755 recalloc+00000163

[ 51] 0x00007ffcab28257d C:\Windows\System32\KERNEL32.DLL+00075133 BaseThreadInitThunk+00000029

[ 52] 0x00007ffcac80af08 C:\Windows\SYSTEM32\ntdll.dll+00372488 RtlUserThreadStart+00000040

[Walter Roberson]

I wonder if you are running out of memory?

[曾]

Thank you, but I believe it's not the problem. I use a 32*2 GB ddr5 RAM, and I have checked the memroy usage rate, which is always 17% approximately during the calculation.

[曾]

I increased java heap memory to the maximum, it seemed better than before: crashes occurred less frequent but still showed up after about 3 hours.

[Meet]

Hi @曾, could you please share the code you are running ?

[曾]

@Meet Of course, I would pack the functions and main document together after I finished my current work. Thank you for your kindness.

[Edric Ellis]

Please could you report this to MathWorks support directly - this will help us get to the bottom of things more efficiently.