Invalid access to memory - System::LStrClr :: Support Forum

andreas.legner@... Guest

Invalid access to memory - System::LStrClr

2018-03-26 14:32

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 5.13

Error message:
Invalid access to memory.

Stack trace:
(003F0FB6) System::LStrClr
(008B9FD2) C5101_3
(008BC03A) ____ExceptionHandler
(008B8DF4) __ExceptionHandler
(00088D1F) ntdll.dll
(0006FC11) ntdll.dll.KiUserExceptionDispatcher
(003CBFA1) System::Sysutils::FmtStr
(003CA29B) System::Sysutils::FmtLoadStr
(0001F05A) TCustomScpExplorerForm::RemoteFileControlDDTargetDrop
(007B9262) TTerminal::CommandError
(007B8FF5) TTerminal::CommandError
(007C231A) TTerminal::ChangeDirectory
(007B79A2) TTerminal::SetCurrentDirectoryW
(00677C82) TUnixDirView::SetPath
(00046EBA) TScpCommanderForm::RemotePathLabelPathClick
(004132AD) Pathlabel::TCustomPathLabel::DoPathClick
(00411B14) Pathlabel::TCustomPathLabel::Click
(00255885) Vcl::Controls::TControl::WMLButtonUp
(00254AC0) Vcl::Controls::TControl::Perform
(00259297) Vcl::Controls::TWinControl::IsControlMouseMsg
(00259010) Vcl::Controls::TWinControl::MainWndProc
(0037ED14) System::Classes::_18201
(0001D0B9) USER32.dll
(00027844) USER32.dll
(0002A140) USER32.dll
(000180D7) USER32.dll
(00017C1B) USER32.dll.DispatchMessageW

(008BA63D) C5101_3
(008BBC17) _ReThrowException
(007B5CD9) TTerminal::HandleExtendedException
(007B9262) TTerminal::CommandError
(007B8FF5) TTerminal::CommandError
(007C231A) TTerminal::ChangeDirectory
(007B79A2) TTerminal::SetCurrentDirectoryW
(00677C82) TUnixDirView::SetPath
(00046EBA) TScpCommanderForm::RemotePathLabelPathClick
(004132AD) Pathlabel::TCustomPathLabel::DoPathClick
(00411B14) Pathlabel::TCustomPathLabel::Click
(00255885) Vcl::Controls::TControl::WMLButtonUp
(00254AC0) Vcl::Controls::TControl::Perform
(00259297) Vcl::Controls::TWinControl::IsControlMouseMsg
(00259010) Vcl::Controls::TWinControl::MainWndProc
(0037ED14) System::Classes::_18201
(0001D0B9) USER32.dll
(00027844) USER32.dll
(0002A140) USER32.dll
(000180D7) USER32.dll
(00017C1B) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.

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jfkfelixfan@... Guest

Invalid access to memory - System::LStrClr

2018-07-10 20:22

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 5.13.3

Error message:
Invalid access to memory.

Stack trace:
(003F26B8) System::LStrClr
(000A516F) ntdll.dll
(0008F661) ntdll.dll.KiUserExceptionDispatcher
(0040649A) Nortonlikelistview::TCustomNortonLikeListView::CNNotify
(002564E1) Vcl::Controls::TControl::WndProc
(0025B025) Vcl::Controls::TWinControl::WndProc
(0029EF53) Vcl::Comctrls::TCustomListView::WndProc
(0025B18B) Vcl::Controls::_17076
(0025B025) Vcl::Controls::TWinControl::WndProc
(0025A66C) Vcl::Controls::TWinControl::MainWndProc
(00380370) System::Classes::_18201
(00034265) USER32.dll
(00010857) USER32.dll
(0001053A) USER32.dll
(00022B5D) USER32.dll
(0008F61B) ntdll.dll.KiUserCallbackDispatcher
(0000FBAC) USER32.dll.SendMessageW
(0003947D) COMCTL32.DLL
(00024FEA) COMCTL32.DLL
(00026427) COMCTL32.DLL
(000252AA) COMCTL32.DLL
(0002F205) COMCTL32.DLL
(0002D8C2) COMCTL32.DLL
(00034265) USER32.dll
(00010857) USER32.dll
(0000FA19) USER32.dll.CallWindowProcW
(0025B136) Vcl::Controls::TWinControl::DefaultHandler
(0025B025) Vcl::Controls::TWinControl::WndProc
(0029EF53) Vcl::Comctrls::TCustomListView::WndProc
(00380370) System::Classes::_18201
(00034265) USER32.dll
(00010857) USER32.dll
(0000FA19) USER32.dll.CallWindowProcW
(00049AD7) COMCTL32.DLL
(00049B76) COMCTL32.DLL
(00049930) COMCTL32.DLL
(00034265) USER32.dll
(00010857) USER32.dll
(0000FA19) USER32.dll.CallWindowProcW
(00443213) Dragdrop::TDragDrop::WndMethod
(00380370) System::Classes::_18201
(00034265) USER32.dll
(00010857) USER32.dll
(0001053A) USER32.dll
(00022B5D) USER32.dll
(0008F61B) ntdll.dll.KiUserCallbackDispatcher
(0000FBAC) USER32.dll.SendMessageW
(0029ADC2) Vcl::Comctrls::TListItems::Clear
(0041C8E7) Customdirview::TCustomDirView::ClearItems
(0041EA50) Customdirview::TCustomDirView::Load
(00428A59) Dirview::TDirView::Load
(0041E78D) Customdirview::TCustomDirView::Reload
(00429D6D) Dirview::TDirView::Reload
(00019866) TCustomScpExplorerForm::Synchronize
(00019101) TCustomScpExplorerForm::DoSynchronize
(00093D5B) TSynchronizeController::SynchronizeChange
(003FF886) Discmon::TDiscMonitor::Change
(003FEE26) Discmon::TDiscMonitorThread::InformChange
(00034265) USER32.dll
(00010857) USER32.dll
(0001053A) USER32.dll
(00022B5D) USER32.dll
(0008F61B) ntdll.dll.KiUserCallbackDispatcher
(0000BB8F) USER32.dll.PeekMessageW
(0021E9CC) Vcl::Forms::TApplication::ProcessMessage
(0085273D) TSynchronizeDialog::Execute
(00851E17) DoSynchronizeDialog
(00018DFC) TCustomScpExplorerForm::DoSynchronizeDirectories
(000DD403) Synchronize
(000E3A11) Execute
(000024B4) wWinMain
(008BAA91) C4972_0
(0006074C) ntdll.dll.PssNtCaptureSnapshot
(0006071D) ntdll.dll.PssNtCaptureSnapshot

The problem happens rarely. I cannot reproduce it.

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marcello@... Guest

Invalid access to memory - System::LStrClr

2019-03-06 01:46

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 5.14.5

Error message:
Invalid access to memory.

Stack trace:
(004176AC) System::LStrClr
(00083FFF) ntdll.dll
(00071931) ntdll.dll.KiUserExceptionDispatcher
(0045053B) Dirview::_16502
(004507E1) Dirview::_16504
(0018D93A) COMCTL32.DLL
(00068BA8) COMCTL32.DLL.DPA_Search
(00068AE4) COMCTL32.DLL.DPA_Search
(00068AF6) COMCTL32.DLL.DPA_Search
(00068AF6) COMCTL32.DLL.DPA_Search
(00068AE4) COMCTL32.DLL.DPA_Search
(00068C6D) COMCTL32.DLL.DPA_Search
(0006A643) COMCTL32.DLL.DPA_Sort
(0018D764) COMCTL32.DLL
(0018D48A) COMCTL32.DLL
(000DC163) COMCTL32.DLL
(000957DF) COMCTL32.DLL
(0005C002) COMCTL32.DLL
(00045359) USER32.dll
(00036297) USER32.dll
(000357EA) USER32.dll.CallWindowProcW
(00278866) Vcl::Controls::TWinControl::DefaultHandler
(00278755) Vcl::Controls::TWinControl::WndProc
(002BBA2F) Vcl::Comctrls::TCustomListView::WndProc
(003A33B8) System::Classes::_18201
(00045359) USER32.dll
(00036297) USER32.dll
(000357EA) USER32.dll.CallWindowProcW
(0007430F) COMCTL32.DLL
(000743AE) COMCTL32.DLL
(000740AC) COMCTL32.DLL
(00045359) USER32.dll
(00036297) USER32.dll
(000357EA) USER32.dll.CallWindowProcW
(0047A1C3) Dragdrop::TDragDrop::WndMethod
(003A33B8) System::Classes::_18201
(00045359) USER32.dll
(00036297) USER32.dll
(00035E35) USER32.dll
(000427ED) USER32.dll
(000718EB) ntdll.dll.KiUserCallbackDispatcher
(0003570E) USER32.dll.SendMessageW

(003F2B4C) System::Sysutils::WideFormatBuf
(00083FFF) ntdll.dll
(00071931) ntdll.dll.KiUserExceptionDispatcher
(003F1DC8) System::Sysutils::FormatBuf
(003F1F60) System::Sysutils::FmtStr
(003F1EDA) System::Sysutils::Format
(003F1EBF) System::Sysutils::Format
(0045022B) Dirview::TDirView::GetDisplayData
(0045053B) Dirview::_16502
(004507E1) Dirview::_16504
(0018D93A) COMCTL32.DLL
(00068BA8) COMCTL32.DLL.DPA_Search
(00068AE4) COMCTL32.DLL.DPA_Search
(00068AF6) COMCTL32.DLL.DPA_Search
(00068AF6) COMCTL32.DLL.DPA_Search
(00068AE4) COMCTL32.DLL.DPA_Search
(00068C6D) COMCTL32.DLL.DPA_Search
(0006A643) COMCTL32.DLL.DPA_Sort
(0018D764) COMCTL32.DLL
(0018D48A) COMCTL32.DLL
(000DC163) COMCTL32.DLL
(000957DF) COMCTL32.DLL
(0005C002) COMCTL32.DLL
(00045359) USER32.dll
(00036297) USER32.dll
(000357EA) USER32.dll.CallWindowProcW
(00278866) Vcl::Controls::TWinControl::DefaultHandler
(00278755) Vcl::Controls::TWinControl::WndProc
(002BBA2F) Vcl::Comctrls::TCustomListView::WndProc
(003A33B8) System::Classes::_18201
(00045359) USER32.dll
(00036297) USER32.dll
(000357EA) USER32.dll.CallWindowProcW
(0007430F) COMCTL32.DLL
(000743AE) COMCTL32.DLL
(000740AC) COMCTL32.DLL
(00045359) USER32.dll
(00036297) USER32.dll
(000357EA) USER32.dll.CallWindowProcW
(0047A1C3) Dragdrop::TDragDrop::WndMethod
(003A33B8) System::Classes::_18201
(00045359) USER32.dll
(00036297) USER32.dll
(00035E35) USER32.dll
(000427ED) USER32.dll
(000718EB) ntdll.dll.KiUserCallbackDispatcher
(0003570E) USER32.dll.SendMessageW

The problem happens rarely. I cannot reproduce it.

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marcello@... Guest

Invalid access to memory - System::LStrClr

2019-03-08 08:03

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
Since latest Windows update (Feature update to Windows 10, version 1809) directory listing on the LOCAL folders is extremely slow. Eventually I run into this error. Something is broken since that Windows update.

Thanks for your help!
Marcello
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 5.14.5

Error message:
Invalid access to memory.

Stack trace:
(004176AC) System::LStrClr
(00083FFF) ntdll.dll
(00071931) ntdll.dll.KiUserExceptionDispatcher
(0045053B) Dirview::_16502
(004507E1) Dirview::_16504
(0018D93A) COMCTL32.DLL
(00068BA8) COMCTL32.DLL.DPA_Search
(00068AE4) COMCTL32.DLL.DPA_Search
(00068AF6) COMCTL32.DLL.DPA_Search
(00068AF6) COMCTL32.DLL.DPA_Search
(00068AE4) COMCTL32.DLL.DPA_Search
(00068C6D) COMCTL32.DLL.DPA_Search
(0006A643) COMCTL32.DLL.DPA_Sort
(0018D764) COMCTL32.DLL
(0018D48A) COMCTL32.DLL
(000DC163) COMCTL32.DLL
(000957DF) COMCTL32.DLL
(0005C002) COMCTL32.DLL
(00045359) USER32.dll
(00036297) USER32.dll
(000357EA) USER32.dll.CallWindowProcW
(00278866) Vcl::Controls::TWinControl::DefaultHandler
(00278755) Vcl::Controls::TWinControl::WndProc
(002BBA2F) Vcl::Comctrls::TCustomListView::WndProc
(003A33B8) System::Classes::_18201
(00045359) USER32.dll
(00036297) USER32.dll
(000357EA) USER32.dll.CallWindowProcW
(0007430F) COMCTL32.DLL
(000743AE) COMCTL32.DLL
(000740AC) COMCTL32.DLL
(00045359) USER32.dll
(00036297) USER32.dll
(000357EA) USER32.dll.CallWindowProcW
(0047A1C3) Dragdrop::TDragDrop::WndMethod
(003A33B8) System::Classes::_18201
(00045359) USER32.dll
(00036297) USER32.dll
(00035E35) USER32.dll
(000427ED) USER32.dll
(000718EB) ntdll.dll.KiUserCallbackDispatcher
(0003570E) USER32.dll.SendMessageW

(002B6D77) Vcl::Comctrls::TListItem::GetListView
(00083FFF) ntdll.dll
(00071931) ntdll.dll.KiUserExceptionDispatcher
(004507E1) Dirview::_16504
(0018D93A) COMCTL32.DLL
(00068BA8) COMCTL32.DLL.DPA_Search
(00068AE4) COMCTL32.DLL.DPA_Search
(00068AF6) COMCTL32.DLL.DPA_Search
(00068AF6) COMCTL32.DLL.DPA_Search
(00068AE4) COMCTL32.DLL.DPA_Search
(00068C6D) COMCTL32.DLL.DPA_Search
(0006A643) COMCTL32.DLL.DPA_Sort
(0018D764) COMCTL32.DLL
(0018D48A) COMCTL32.DLL
(000DC163) COMCTL32.DLL
(000957DF) COMCTL32.DLL
(0005C002) COMCTL32.DLL
(00045359) USER32.dll
(00036297) USER32.dll
(000357EA) USER32.dll.CallWindowProcW
(00278866) Vcl::Controls::TWinControl::DefaultHandler
(00278755) Vcl::Controls::TWinControl::WndProc
(002BBA2F) Vcl::Comctrls::TCustomListView::WndProc
(003A33B8) System::Classes::_18201
(00045359) USER32.dll
(00036297) USER32.dll
(000357EA) USER32.dll.CallWindowProcW
(0007430F) COMCTL32.DLL
(000743AE) COMCTL32.DLL
(000740AC) COMCTL32.DLL
(00045359) USER32.dll
(00036297) USER32.dll
(000357EA) USER32.dll.CallWindowProcW
(0047A1C3) Dragdrop::TDragDrop::WndMethod
(003A33B8) System::Classes::_18201
(00045359) USER32.dll
(00036297) USER32.dll
(00035E35) USER32.dll
(000427ED) USER32.dll
(000718EB) ntdll.dll.KiUserCallbackDispatcher
(0003570E) USER32.dll.SendMessageW

I know how to reproduce the problem or the problem happens frequently enough. I wish to be contacted by the WinSCP team to help resolving the problem.

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martin◆ Site Admin
Joined:: 2002-12-10
Posts:: 40,587
Location:: Prague, Czechia

Re: Invalid access to memory - System::LStrClr

2019-03-08

Thanks for your report.
I have sent you an email with a debug version of WinSCP to the address you have used to register on this forum.

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manueloterorubio@... Guest

Acceso a memoria no válido - System::LStrClr

2022-09-06 15:09

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 5.19.6

Error message:
Acceso a memoria no válido

Traza de la pila:
(0043BA20) System::LStrClr
(000879EF) ntdll.dll
(00073EE1) ntdll.dll.KiUserExceptionDispatcher
(0044FABA) Nortonlikelistview::TCustomNortonLikeListView::CNNotify
(0027B89D) Vcl::Controls::TControl::WndProc
(002803E1) Vcl::Controls::TWinControl::WndProc
(002C36BB) Vcl::Comctrls::TCustomListView::WndProc
(00280547) Vcl::Controls::_17076
(002803E1) Vcl::Controls::TWinControl::WndProc
(0027FA28) Vcl::Controls::TWinControl::MainWndProc
(003C7B64) System::Classes::_18201
(0003FF19) USER32.dll
(00036EC5) USER32.dll
(00036AC5) USER32.dll
(0003A68D) USER32.dll
(00073E9B) ntdll.dll.KiUserCallbackDispatcher
(000348EA) USER32.dll.SendMessageW
(00068881) COMCTL32.DLL
(00026A08) COMCTL32.DLL
(0002623A) COMCTL32.DLL
(00065B5B) COMCTL32.DLL
(000648A2) COMCTL32.DLL
(0003FF19) USER32.dll
(00036EC5) USER32.dll
(000365A2) USER32.dll
(00034746) USER32.dll.CallWindowProcW
(002804F2) Vcl::Controls::TWinControl::DefaultHandler
(002803E1) Vcl::Controls::TWinControl::WndProc
(002C36BB) Vcl::Comctrls::TCustomListView::WndProc
(003C7B64) System::Classes::_18201
(0003FF19) USER32.dll
(00036EC5) USER32.dll
(000365A2) USER32.dll
(00034746) USER32.dll.CallWindowProcW
(00079E57) COMCTL32.DLL
(00079EF6) COMCTL32.DLL
(00079CAC) COMCTL32.DLL
(0003FF19) USER32.dll
(00036EC5) USER32.dll
(000365A2) USER32.dll
(00034746) USER32.dll.CallWindowProcW
(0049E76B) Dragdrop::TDragDrop::WndMethod
(003C7B64) System::Classes::_18201
(0003FF19) USER32.dll
(00036EC5) USER32.dll
(00036AC5) USER32.dll
(0003A68D) USER32.dll
(00073E9B) ntdll.dll.KiUserCallbackDispatcher
(000348EA) USER32.dll.SendMessageW
(002BF52A) Vcl::Comctrls::TListItems::Clear
(0046690A) Customdirview::TCustomDirView::ClearItems
(004722E3) Dirview::TDirView::WMDestroy
(002803E1) Vcl::Controls::TWinControl::WndProc
(002C36BB) Vcl::Comctrls::TCustomListView::WndProc
(003C7B64) System::Classes::_18201
(0003FF19) USER32.dll
(00036EC5) USER32.dll
(000365A2) USER32.dll
(00034746) USER32.dll.CallWindowProcW
(00079E57) COMCTL32.DLL
(00079EF6) COMCTL32.DLL
(00079CAC) COMCTL32.DLL
(0003FF19) USER32.dll
(00036EC5) USER32.dll
(000365A2) USER32.dll
(00034746) USER32.dll.CallWindowProcW
(0049E76B) Dragdrop::TDragDrop::WndMethod
(003C7B64) System::Classes::_18201
(0003FF19) USER32.dll
(00036EC5) USER32.dll
(00036AC5) USER32.dll
(0003A68D) USER32.dll
(00073E9B) ntdll.dll.KiUserCallbackDispatcher
(0023CB2B) Vcl::Forms::TCustomForm::DestroyWindowHandle
(00006561) Vcl::Forms::TForm::~TForm
(0000627E) TCustomScpExplorerForm::~TCustomScpExplorerForm
(00050162) TScpCommanderForm::~TScpCommanderForm
(00108EFF) Execute
(00002658) wWinMain
(00FC2C59) C5162_0
(00066A9C) ntdll.dll.RtlGetAppContainerNamedObjectPath
(00066A69) ntdll.dll.RtlGetAppContainerNamedObjectPath

The problem happens rarely. I cannot reproduce it.

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kkaran56@... Guest

Invalid access to memory - System::LStrClr

2023-10-31 07:03

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 6.1.2

Error message:
Invalid access to memory.

Stack trace:
(002956E2) System::LStrClr
(01003DEA) C6083_0
(01005E52) ____ExceptionHandler
(01002C0C) __ExceptionHandler
(00087A7F) ntdll.dll
(000740D1) ntdll.dll.KiUserExceptionDispatcher
(00530264) Vcl::Imaging::Pngimage::TChunk::GetName
(0025E6B2) System::Syncobjs::TCriticalSection::Enter
(00D1C1B6) TTerminalQueue::CreateStatus
(0000816D) TCustomScpExplorerForm::UpdateQueueStatus
(00008634) TCustomScpExplorerForm::QueueChanged
(0000809E) TCustom

The problem happens rarely. I cannot reproduce it.

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