topic Re: AutoCAD suddenly closes without any message or error while jigging in .NET Forum

AutoCAD suddenly closes without any message or error while jigging

a.kouchakzadeh — Sun, 22 Dec 2024 08:17:39 GMT

Hello to every one. happy new year in advance.

I have an issue with jigging a couple of entities. my class inherits from DrawJig.

in this class I have some heavy calculation per mouse movement. some times, not always, AutoCAD suddenly closes without any prior notice, message or error.

it doesn't crash and show the error message. it just suddenly closes.

I have two methods called in my sampler, one gets PromptPointOptions and the other manipulates some objects after I have the new jigRes point:

public Point3d UpdatePosition(Point3d position) { if(Dim1 is null) { _movingPoint = position; return _movingPoint; } else { var reflectedOnBaseLine = _wallsAndSoffit.BaseLine.line.GetClosestPointTo(position, true); Dim1.XLine2Point = reflectedOnBaseLine; Dim1.DimLinePoint = Dim1.XLine1Point.Add(_dimLinePointVector); _movingPoint = position; return reflectedOnBaseLine; } } public JigPromptPointOptions GetJigPromptPointOptions() { var output = new JigPromptPointOptions(); if (_guideLine1 is null) { output.UseBasePoint = false; var message = "\nInsert Sprinkler or[use Dimension / New wall or soffit]:"; var keyword = "D N"; output.SetMessageAndKeywords(message, keyword); return output; } else { output.Message = "\nInsert Sprinkler or enter distance:"; output.UseBasePoint = true; output.BasePoint = _guideLine1.GetClosestPointTo(_movingPoint,true); } return output; }

this is the sampler itself:

protected override SamplerStatus Sampler(JigPrompts prompts) { if (_showMoreInfo) { var infoForm = new InformationForm("More Info", _meshInfo.dict, Design_Assistant.Properties.Resources.Base_Pendent_Rquired_Icon); infoForm.ShowDialog(); _showMoreInfo = false; } var jigResult = prompts.AcquirePoint(_jigOptions.GetJigPromptPointOptions()); switch (jigResult.Status) { case PromptStatus.OK: Sprinkler.Position = _jigOptions.UpdatePosition(jigResult.Value); GetMeshInfo(); return SamplerStatus.OK; default: return SamplerStatus.Cancel; } throw new NotImplementedException("Should never reach this point while jig"); }

has any one faced this issue before?

do I have to manually dispose some thing ?

Re: AutoCAD suddenly closes without any message or error while jigging

a.kouchakzadeh — Sun, 22 Dec 2024 13:20:38 GMT

I found where the dump files are. but is there any one who can explain if this dump files can give me any lead of why or how autocad crashed?

does this crash have any thing to do with ntdll? what does that ntdll do anyway?

I opened the dump with windbg and this is what I got

The user dump currently examined is a minidump. Consequently, only a subset of sos.dll functionality will be available. If needed, attaching to the live process or debugging a full dump will allow access to sos.dll's full feature set. To create a full user dump use the command: .dump /ma <filename> ---------------------------------------------------------------------------- ntdll!RtlIsZeroMemory+0x119: 00007ffa`a4b6c399 eb00 jmp ntdll!RtlIsZeroMemory+0x11b (00007ffa`a4b6c39b) 0:007> .ecxr rax=0000ffff00001f80 rbx=000000f7363fedb0 rcx=0000000000000000 rdx=0000000000000000 rsi=000000f7363fe8c0 rdi=000000f7363fe8c0 rip=00007ffaa4b6c399 rsp=000000f7363fefd0 rbp=000002aeee0cdf70 r8=0000000000000000 r9=0000000000000000 r10=0000000000001f30 r11=0000000000000000 r12=0000000000000000 r13=000000f7363ff6c0 r14=000002aec717c700 r15=0000000000000000 iopl=0 nv up ei pl nz na po nc cs=0033 ss=002b ds=002b es=002b fs=0053 gs=002b efl=00000204 ntdll!RtlIsZeroMemory+0x119: 00007ffa`a4b6c399 eb00 jmp ntdll!RtlIsZeroMemory+0x11b (00007ffa`a4b6c39b) 0:007> !analyze -v ******************************************************************************* * * * Exception Analysis * * * *******************************************************************************

Re: AutoCAD suddenly closes without any message or error while jigging

a.kouchakzadeh — Sun, 22 Dec 2024 14:58:31 GMT

from a bit of search, I feel that the error has some thing to do with heap corruption and I also think my code is attempting to free a memory which has been already freed based on this message:

FAILURE_BUCKET_ID: HEAP_CORRUPTION_ACTIONABLE_BlockNotBusy_DOUBLE_FREE_c0000374_ntdll.dll!RtlpFreeHeapInternal

however Im not manipulating memory by myself.

Im jigging a region which constantly changes, and Im hatching that region every time mouse moves in the sampler.

I have not manually disposed anything.

this is another part of the log from the dump file. its too heavy 98 MB so I cant upload the file here.

FILE_IN_CAB: acad.exe.42968.dmp NTGLOBALFLAG: 0 APPLICATION_VERIFIER_FLAGS: 0 CONTEXT: (.ecxr) rax=0000ffff00001f80 rbx=000000f7363fedb0 rcx=0000000000000000 rdx=0000000000000000 rsi=000000f7363fe8c0 rdi=000000f7363fe8c0 rip=00007ffaa4b6c399 rsp=000000f7363fefd0 rbp=000002aeee0cdf70 r8=0000000000000000 r9=0000000000000000 r10=0000000000001f30 r11=0000000000000000 r12=0000000000000000 r13=000000f7363ff6c0 r14=000002aec717c700 r15=0000000000000000 iopl=0 nv up ei pl nz na po nc cs=0033 ss=002b ds=002b es=002b fs=0053 gs=002b efl=00000204 ntdll!RtlReportFatalFailure+0x9: 00007ffa`a4b6c399 eb00 jmp ntdll!RtlReportFatalFailure+0xb (00007ffa`a4b6c39b) Resetting default scope EXCEPTION_RECORD: (.exr -1) ExceptionAddress: 00007ffaa4b6c399 (ntdll!RtlReportFatalFailure+0x0000000000000009) ExceptionCode: c0000374 ExceptionFlags: 00000081 NumberParameters: 1 Parameter[0]: 00007ffaa4bd7780 PROCESS_NAME: acad.exe ERROR_CODE: (NTSTATUS) 0xc0000374 - A heap has been corrupted. EXCEPTION_CODE_STR: c0000374 EXCEPTION_PARAMETER1: 00007ffaa4bd7780 ADDITIONAL_DEBUG_TEXT: Followup set based on attribute [Heap_Error_Type] from Frame:[0] on thread:[PSEUDO_THREAD] ; Followup set based on attribute [Is_ChosenCrashFollowupThread] from Frame:[0] on thread:[PSEUDO_THREAD] FAULTING_THREAD: ffffffff STACK_TEXT: 00000000`00000000 00000000`00000000 ntdll!RtlpFreeHeapInternal+0x0 STACK_COMMAND: !heap ; ** Pseudo Context ** ManagedPseudo ** Value: ffffffff ** ; kb SYMBOL_NAME: ntdll!RtlpFreeHeapInternal+0 MODULE_NAME: ntdll IMAGE_NAME: ntdll.dll FAILURE_BUCKET_ID: HEAP_CORRUPTION_ACTIONABLE_BlockNotBusy_DOUBLE_FREE_c0000374_ntdll.dll!RtlpFreeHeapInternal OS_VERSION: 10.0.22000.1 BUILDLAB_STR: co_release OSPLATFORM_TYPE: x64 OSNAME: Windows 10 IMAGE_VERSION: 10.0.22000.2538 FAILURE_ID_HASH: {f9e860eb-b03f-7415-804c-7e671e26c730} Followup: MachineOwner ---------

the problem is, I cant even detect when exactly this happens. some times it does happen, some times it doesn't.

any help is REALLY appreciated.

Re: AutoCAD suddenly closes without any message or error while jigging

daniel_cadext — Mon, 23 Dec 2024 12:21:12 GMT

I think RtlIsZeroMemory is a null pointer check

I would remove the throw in Sampler, maybe use a print, alert or assert

I would also put a try catch in Sampler, we cant see if GetMeshInfo throws

InformationForm should be inside a using statement since it’s disposable

Re: AutoCAD suddenly closes without any message or error while jigging

a.kouchakzadeh — Tue, 24 Dec 2024 06:38:43 GMT

No lock sir.
I used a try catch block in the sampler, but AutoCAD randomly crashes without going into the catch block.

I found this post from Fenton. it seemed to be my case. but forcing GC to run on main thread didn't help.

the problem is I can't even find out what triggers the issue. its seems very random.
EDIT: I found this link created by Tony.

I think that might lead me some where

Re: AutoCAD suddenly closes without any message or error while jigging

kerry_w_brown — Tue, 24 Dec 2024 09:51:14 GMT

@a.kouchakzadeh

That post at theSwamp is more than 12 years old.

If it had been made here ( in this forum) it would have been deleted with this months "clean-up"

Just be thankful.
As a sort-of side issue, the matters discussed in that thread have still not been documented to our satisfaction, despite our earnest requests over the years.

Stay well,

Re: AutoCAD suddenly closes without any message or error while jigging

a.kouchakzadeh — Wed, 25 Dec 2024 07:39:19 GMT

so, what that means is, where ever I use a dbobject, I either have to add to database or keep it in a using statement ? if so, its really surprising this is not documented anywhere.

Re: AutoCAD suddenly closes without any message or error while jigging

_gile — Wed, 25 Dec 2024 08:03:46 GMT

@a.kouchakzadeh a écrit :

so, what that means is, where ever I use a dbobject, I either have to add to database or keep it in a using statement ? if so, its really surprising this is not documented anywhere.

It is documented here, but it is still confusing. The "need to dispose" conditions should have been:

Always with a Transaction or DocumentLock object
Always with newly created database objects, objects derived from DBObject, that are not (or could not be) added to the database
~~Always with newly created database objects, objects derived from DBObject, that are being added to a transaction~~
Do not have to with newly created database objects, objects derived from DBObject, that are being added to a transaction with the AddNewlyCreatedDBObject method
Do not have to with existing database objects, objects derived from DBObject, opened with a transaction object and the GetObject method

Re: AutoCAD suddenly closes without any message or error while jigging

daniel_cadext — Wed, 25 Dec 2024 08:03:23 GMT

Ouch, memory management in C++ is way easier 😬

Re: AutoCAD suddenly closes without any message or error while jigging

_gile — Wed, 25 Dec 2024 08:40:23 GMT

@daniel_cadext a écrit :

Ouch, memory management in C++ is way easier 😬

It's quite simple.

Any opened or newly created object deriving from DBObject have to be disposed.

Transactions can help to make this more simple: an object opened with Transaction.GetObject or a newly created object added to the transaction with Transaction.AddNewlyCreatedDBObject will be automatically disposed when the transaction is disposed,

That said, we have to take care of explicitly disposing of newly created DBObjects that are not, or potentially may not be, added to the database.

Re: AutoCAD suddenly closes without any message or error while jigging

a.kouchakzadeh — Sun, 29 Dec 2024 12:46:18 GMT

"or a newly created object added to the transaction with Transaction.AddNewlyCreatedDBObject will be automatically disposed when the transaction is disposed"
does this apply for DBObjects which are not meant to be added to database?

Re: AutoCAD suddenly closes without any message or error while jigging

_gile — Sun, 29 Dec 2024 17:05:00 GMT

@a.kouchakzadeh a écrit :

"or a newly created object added to the transaction with Transaction.AddNewlyCreatedDBObject will be automatically disposed when the transaction is disposed"
does this apply for DBObjects which are not meant to be added to database?

You can only add a DBObject to a transaction with AddNewlyCreatedDBObject if the DBObject is already database resident (see the docs).

For DBObjects which are not meant to be added to database, you have to explicitly dispose them (typically with a using statement).

Re: AutoCAD suddenly closes without any message or error while jigging

a.kouchakzadeh — Sun, 29 Dec 2024 18:32:15 GMT

thats exactly my question. how can I dispose some thing when I want to use it out of the scope it was created? ex. I create a region in the sampler, but I need it in the worlddraw method.

Re: AutoCAD suddenly closes without any message or error while jigging

ActivistInvestor — Sun, 29 Dec 2024 22:50:18 GMT

You can make it a member of your class, and dispose it when its no longer needed (or just before you assign a new value to the member variable), or you can use the Disposables class found here.

Usually, a variable that's declared in a given scope is not available in any outer/enclosing scopes, so if you are declaring the variable as a local in an outer/enclosing scope, just change that so that the variable is a member of your class.

Once your jigging operation is complete, you just dispose the member variable.

@a.kouchakzadeh wrote:
thats exactly my question. how can I dispose some thing when I want to use it out of the scope it was created? ex. I create a region in the sampler, but I need it in the worlddraw method.