AccessViolationException when loading a IFC file

[christianstroh]

When loading a specific IFC file, a AccessViolationException sporadically occurs.

Assemblies and versions affected:

Project Xbim.Geometry.Engine in solution Xbim.Geometry.Engine (master branch)

Steps (or code) to reproduce the issue:

Load a specific ifc file with XbimXplorer.

Minimal file to reproduce the issue:

IFC files need to be zipped to be uploaded. Then just drag & drop here

Expected behavior:

That no crash occurs ;)

Actual behavior or exception details:

System.AccessViolationException
The exception that is thrown when there is an attempt to read or write protected memory.

StackTrace:
at BRepOffsetAPI_MakePipeShell.{ctor}(BRepOffsetAPI_MakePipeShell* , TopoDS_Wire* )
at Xbim.Geometry.XbimSolid.BuildSweptDiskSolid(TopoDS_Wire* directrixWire, Double radius, Double innerRadius, BRepBuilderAPI_TransitionMode transitionMode)
at Xbim.Geometry.XbimSolid.Init(IIfcSweptDiskSolid solid, ILogger logger)
at Xbim.Geometry.XbimSolid..ctor(IIfcSweptDiskSolid solid, ILogger logger)
at Xbim.Geometry.XbimGeometryCreator.CreateSolid(IIfcSweptDiskSolid ifcSolid, ILogger logger)
at Xbim.Geometry.XbimGeometryCreator.Create(IIfcGeometricRepresentationItem geomRep, IIfcAxis2Placement3D objectLocation, ILogger logger)
at Xbim.Geometry.Engine.Interop.XbimGeometryEngine.Create(IIfcGeometricRepresentationItem ifcRepresentation, ILogger logger) in C:\Git\BIM\XbimGeometry\Xbim.Geometry.Engine.Interop\XbimGeometryEngine.cs:line 74

[andyward]

Hi Christian

Which version of Geometry Engine are you using Christian? From source, Myget or Nuget?

These are usually down to edge cases in the data triggering an issue in the OCC layer. Will really need the model (or part of to diagnose. There's a chance it's fixed in latest 5.1 (and maybe a better chance it's in 6.0)

Have you tried the latest 5.1 develop version: https://www.myget.org/feed/xbim-develop/package/nuget/Xbim.Geometry/5.1.730-develop ?

[christianstroh]

Hi Andy

I use Visual Studio's NuGet Package Manager.
When I try to install version 5.1.730-develop, this error message appears:
Could not install package 'Xbim.Geometry.Engine.Interop 5.1.730-develop'. You are trying to install this package into a project that targets 'native,Version=v0.0', but the package does not contain any assembly references or content files that are compatible with that framework.

I will ask if I am allowed to provide the ifc file.

[namkhang2603]

I'm getting the same error

[andyward]

@namkhang2603 which error are you seeing? An issue installing 5.1.730-develop - or the original issue (System.AccessViolationException)

[andyward]

I use Visual Studio's NuGet Package Manager. When I try to install version 5.1.730-develop, this error message appears: Could not install package 'Xbim.Geometry.Engine.Interop 5.1.730-develop'. You are trying to install this package into a project that targets 'native,Version=v0.0', but the package does not contain any assembly references or content files that are compatible with that framework.

@christianstroh

Sorry I missed this originally. Assume you've moved passed this now. But sounds like you were trying to load GE into a .net core solution which won't work (unless using the v6/netcore branch)

[WalchAndreas]

Hi, we have also encountered AccessViolationExceptions while loading IFC projects. We locally build nuget packages from source of the v6/netcore branch.

Smaller projects trigger this exception regularly, while for large projects it occurs sporadically.

Stacktrace:

Fatal error. System.AccessViolationException: Attempted to read or write protected memory. This is often an indication that other memory is corrupt.
Repeat 2 times:
--------------------------------
   at <Module>.BRepBuilderAPI_MakeEdge2d.{ctor}(BRepBuilderAPI_MakeEdge2d*, opencascade.handle<Geom2d_Curve>*)
--------------------------------
   at <Module>.NWireFactory.BuildWire(NWireFactory*, TopoDS_Wire*, NCollection_Sequence<opencascade::handle<Geom2d_BoundedCurve> >*, Double, Double)
   at Xbim.Geometry.Factories.WireFactory.BuildWire(TopoDS_Wire*, Xbim.Ifc4.Interfaces.IIfcIndexedPolyCurve, Boolean)
   at Xbim.Geometry.Factories.WireFactory.BuildWire(TopoDS_Wire*, Xbim.Ifc4.Interfaces.IIfcCurve, Boolean)
   at Xbim.Geometry.Factories.ProfileFactory.BuildProfileWire(TopoDS_Wire*, Xbim.Ifc4.Interfaces.IIfcArbitraryClosedProfileDef)
   at Xbim.Geometry.Factories.ProfileFactory.BuildProfileFace(TopoDS_Face*, Xbim.Ifc4.Interfaces.IIfcArbitraryClosedProfileDef)
   at Xbim.Geometry.Factories.ProfileFactory.BuildProfileFace(TopoDS_Face*, Xbim.Ifc4.Interfaces.IIfcProfileDef)
   at Xbim.Geometry.Factories.SolidFactory.BuildExtrudedAreaSolid(TopoDS_Shape*, Xbim.Ifc4.Interfaces.IIfcExtrudedAreaSolid, Xbim.Ifc4.Interfaces.IIfcProfileDef)
   at Xbim.Geometry.XbimSolid.Init(Xbim.Ifc4.Interfaces.IIfcExtrudedAreaSolid, Xbim.Ifc4.Interfaces.IIfcProfileDef, Microsoft.Extensions.Logging.ILogger)
   at Xbim.Geometry.XbimSolid.Init(Xbim.Ifc4.Interfaces.IIfcSweptAreaSolid, Xbim.Ifc4.Interfaces.IIfcProfileDef, Microsoft.Extensions.Logging.ILogger)
   at Xbim.Geometry.XbimSolid.Init(Xbim.Ifc4.Interfaces.IIfcSolidModel, Microsoft.Extensions.Logging.ILogger)
   at Xbim.Geometry.XbimSolid..ctor(Xbim.Ifc4.Interfaces.IIfcSweptAreaSolid, Microsoft.Extensions.Logging.ILogger, Xbim.Geometry.Services.ModelGeometryService)
   at Xbim.Geometry.XbimGeometryCreator.CreateSolid(Xbim.Ifc4.Interfaces.IIfcExtrudedAreaSolid, Microsoft.Extensions.Logging.ILogger)
   at Xbim.Geometry.XbimGeometryCreator.CreateSolid(Xbim.Ifc4.Interfaces.IIfcSweptAreaSolid, Microsoft.Extensions.Logging.ILogger)
   at Xbim.Geometry.XbimGeometryCreator.Create(Xbim.Ifc4.Interfaces.IIfcGeometricRepresentationItem, Xbim.Ifc4.Interfaces.IIfcAxis2Placement3D, Microsoft.Extensions.Logging.ILogger)
   at Xbim.Geometry.XbimGeometryCreator.Create(Xbim.Ifc4.Interfaces.IIfcGeometricRepresentationItem, Microsoft.Extensions.Logging.ILogger)
   at Xbim.ModelGeometry.Scene.Xbim3DModelContext+<>c__DisplayClass44_0.<WriteShapeGeometries>b__0(Int32)
   at System.Threading.Tasks.Parallel+<>c__DisplayClass43_0`2[[System.Int32, System.Private.CoreLib, Version=8.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e],[System.__Canon, System.Private.CoreLib, Version=8.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]].<PartitionerForEachWorker>b__1(System.Collections.IEnumerator ByRef, Int64, Boolean ByRef)
   at System.Threading.Tasks.TaskReplicator+Replica.Execute()
   at System.Threading.ExecutionContext.RunFromThreadPoolDispatchLoop(System.Threading.Thread, System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object)
   at System.Threading.Tasks.Task.ExecuteWithThreadLocal(System.Threading.Tasks.Task ByRef, System.Threading.Thread)
   at System.Threading.ThreadPoolWorkQueue.Dispatch()
   at System.Threading.PortableThreadPool+WorkerThread.WorkerThreadStart()

Attached the test-project
galerie_test.zip

[namkhang2603]

@namkhang2603 which error are you seeing? An issue installing 5.1.730-develop - or the original issue (System.AccessViolationException)
I using :
Xbim.Essentials" Version="6.0.445"
Xbim.Geometry" Version="5.1.437"
Xbim.IO.Esent" Version="6.0.445"
My file is too large to attach, I sent it via the dropbox download link
https://www.dropbox.com/scl/fi/h06e7tvjm9jhqmmmijpds/IFC_ERROR.zip?rlkey=psvpswyg04ll5x5ymaa2r923n&st=9xpina88&dl=0
`#Fatal error. System.AccessViolationException: Attempted to read or write protected memory. This is often an indication that other memory is corrupt.
Repeat 2 times:

---

at .BRepOffsetAPI_MakePipeShell.{ctor}(BRepOffsetAPI_MakePipeShell*, TopoDS_Wire*)

at Xbim.Geometry.XbimSolid.BuildSweptDiskSolid(TopoDS_Wire*, Double, Double, BRepBuilderAPI_TransitionMode)
at Xbim.Geometry.XbimSolid.Init(Xbim.Ifc4.Interfaces.IIfcSweptDiskSolid, Microsoft.Extensions.Logging.ILogger)
at Xbim.Geometry.XbimSolid..ctor(Xbim.Ifc4.Interfaces.IIfcSweptDiskSolid, Microsoft.Extensions.Logging.ILogger)
at Xbim.Geometry.XbimGeometryCreator.Create(Xbim.Ifc4.Interfaces.IIfcGeometricRepresentationItem, Xbim.Ifc4.Interfaces.IIfcAxis2Placement3D, Microsoft.Extensions.Logging.ILogger)
at Xbim.Geometry.Engine.Interop.XbimGeometryEngine.Create(Xbim.Ifc4.Interfaces.IIfcGeometricRepresentationItem, Microsoft.Extensions.Logging.ILogger)
at Xbim.ModelGeometry.Scene.Xbim3DModelContext+<>c__DisplayClass39_0.b__0(Int32)
at System.Threading.Tasks.Parallel+<>c__DisplayClass43_02[[System.Int32, System.Private.CoreLib, Version=8.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e],[System.__Canon, System.Private.CoreLib, Version=8.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]].<PartitionerForEachWorker>b__1(System.Collections.IEnumerator ByRef, Int64, Boolean ByRef) at System.Threading.Tasks.TaskReplicator+Replica.Execute() at System.Threading.ExecutionContext.RunFromThreadPoolDispatchLoop(System.Threading.Thread, System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object) at System.Threading.Tasks.Task.ExecuteWithThreadLocal(System.Threading.Tasks.Task ByRef, System.Threading.Thread) at System.Threading.ThreadPoolWorkQueue.Dispatch() at System.Threading.PortableThreadPool+WorkerThread.WorkerThreadStart()

[WalchAndreas]

Investigations showed that the AccessViolationException in version 6 is caused by multi-threading problems (see Issue #489). Maybe this is also the case for other versions.