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steffen.engewald@...

Invalid access to memory - Vcl::Comctrls::TListColumn::DoChange

<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 6.6.3

Error message:
Invalid access to memory.

Stack trace:
(00441D7B) Vcl::Comctrls::TListColumn::DoChange
(000B4BE0) ntdll.dll
(000B4BAF) ntdll.dll
(0006E6EE) ntdll.dll
(0007AF7A) ntdll.dll.KiUserExceptionDispatcher
(00441FA8) Vcl::Comctrls::TListColumn::SetWidth
(00044D7D) TCustomScpExplorerForm::FormAfterMonitorDpiChanged
(00BF36D5) C4927_5
(0003FDB3) USER32.dll
(00027081) USER32.dll.SendMessageW
(000002AA) win32u.dll.NtUserRedrawWindow
(003CF41E) Vcl::Controls::TWinControl::UnlockDrawing
(004D87F5) Vcl::Forms::TCustomForm::DoAfterMonitorDpiChanged
(004D88B3) Vcl::Forms::TCustomForm::WMDpiChanged
(000401BC) TCustomScpExplorerForm::WMDpiChanged
(0002A2AC) USER32.dll
(0003A177) ntdll.dll.RtlDeactivateActivationContextUnsafeFast
(004A3327) Vcl::Themes::TStyleManager::GetIsCustomStyleActive
(004A32FC) Vcl::Themes::TStyleManager::IsCustomStyleAvailable
(00038691) USER32.dll
(0003FBD8) TCustomScpExplorerForm::Dispatch
(000278B8) USER32.dll
(000279C2) USER32.dll
(00027952) USER32.dll
(00032E47) USER32.dll.GetWindowThreadProcessId
(000007EA) win32u.dll.NtUserGetObjectInformation
(003CB1C2) Vcl::Controls::TControl::WndProc
(00028EBF) UXTHEME.DLL
(003D036D) Vcl::Controls::TWinControl::WndProc
(004D4544) Vcl::Forms::TCustomForm::WndProc
(0002A84C) UXTHEME.DLL
(00038C10) UXTHEME.DLL
(00BF20CE) C4927_0
(00041CBD) ntdll.dll
(00041512) ntdll.dll
(00027D69) USER32.dll
(000006FA) win32u.dll.NtUserSetWindowLong
(000263C4) USER32.dll
(00094A99) ntdll.dll
(00042AAA) ntdll.dll.RtlReleaseSRWLockExclusive
(00023B19)UXTHEME.DLL
(003CF878) Vcl::Controls::TWinControl::MainWndProc
(002361EC) System::Classes::_18364
(00038691) USER32.dll
(000278B8) USER32.dll
(000275A3) USER32.dll
(000279B9) USER32.dll
(0002735B) USER32.dll
(000BE957) USER32.dll
(0007AF54) ntdll.dll.KiUserCallbackDispatcher
(000001AA) win32u.dll.NtUserPeekMessage
(00031765) USER32.dll
(0016A240) System::TMonitor::TryEnter
(00169D68) System::TMonitor::Enter
(00169BD0) System::TMonitor::CheckOwningThread
(00169EF6) System::TMonitor::Exit
(0003165C) USER32.dll.PeekMessageW
(0000023A) win32u.dll.NtUserWaitMessage
(004DE800) Vcl::Forms::TApplication::ProcessMessage
(004DE922) Vcl::Forms::TApplication::HandleMessage
(003D3599) Vcl::Controls::TWinControl::GetHandle
(004D9A86) Vcl::Forms::TCustomForm::ShowModal
(00B9AEA7) TMessageForm::ShowModal
(00148C01) ExecuteMessageDialog
(0014A50A) MoreMessageDialog
(00160625) System::UnicodeString::UnicodeString
(0014B8EB) ExceptionMessageDialog
(001482F1) TMessageParams::TMessageParams
(0014BCE0) FatalExceptionMessageDialog
(00148185) TMessageParams::Reset
(001605B7) System::UnicodeString::~UnicodeString
(0039DD89) System::Internal::Strhlpr::UnicodeFree
(00102D46) ShowExtendedExceptionEx
(0002735B) USER32.dll
(00032677) USER32.dll
(00078BDA) ntdll.dll.ZwCallbackReturn
(0007AF54) ntdll.dll.KiUserCallbackDispatcher
(000001EA) win32u.dll.NtUserMessageCall
%2

The problem happens rarely. I cannot reproduce it.
olevon@...

Accès mémoire invalide - Vcl::Comctrls::TListColumn::DoChange

<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 6.6.2

Error message:
Accès mémoire invalide.

Trace de la pile :
(00440B6F) Vcl::Comctrls::TListColumn::DoChange
(000B41C0) ntdll.dll
(000B418F) ntdll.dll
(0006E4FE) ntdll.dll
(0007AD8A) ntdll.dll.KiUserExceptionDispatcher
(00041302) ntdll.dll
(0003805A) gdi32full.dll.GdiRealizationInfo
(0003808E) gdi32full.dll.GdiRealizationInfo
(00094116) ntdll.dll
(00522633) Pastools::_16427
(00440D9C) Vcl::Comctrls::TListColumn::SetWidth
(00044CE1) TCustomScpExplorerForm::FormAfterMonitorDpiChanged
(00BF12F5) C4925_5
(0003FDF3) USER32.dll
(00027081) USER32.dll.SendMessageW
(000002AA) win32u.dll.NtUserRedrawWindow
(003CE212) Vcl::Controls::TWinControl::UnlockDrawing
(004D75E9) Vcl::Forms::TCustomForm::DoAfterMonitorDpiChanged
(004D76A7) Vcl::Forms::TCustomForm::WMDpiChanged
(00040120) TCustomScpExplorerForm::WMDpiChanged
(0002A28C) USER32.dll
(00039F67) ntdll.dll.RtlDeactivateActivationContextUnsafeFast
(004A211B) Vcl::Themes::TStyleManager::GetIsCustomStyleActive
(004A20F0) Vcl::Themes::TStyleManager::IsCustomStyleAvailable
(00038731) USER32.dll
(0003FB3C) TCustomScpExplorerForm::Dispatch
(000278B8) USER32.dll
(000279C2) USER32.dll
(00027952) USER32.dll
(00032E37) USER32.dll.GetWindowThreadProcessId
(000007EA) win32u.dll.NtUserGetObjectInformation
(003C9FB6) Vcl::Controls::TControl::WndProc
(000296DF) UXTHEME.DLL
(003CF161) Vcl::Controls::TWinControl::WndProc
(004D3338) Vcl::Forms::TCustomForm::WndProc
(0002B06C) UXTHEME.DLL
(0003A240) UXTHEME.DLL
(00BEFCEE) C4925_0
(00041AAD) ntdll.dll
(00041302) ntdll.dll
(00027D69) USER32.dll
(000006FA) win32u.dll.NtUserSetWindowLong
(000263C4) USER32.dll
(00094116) ntdll.dll
(0004289A) ntdll.dll.RtlReleaseSRWLockExclusive
(00024339)UXTHEME.DLL
(003CE66C) Vcl::Controls::TWinControl::MainWndProc
(00234FE0) System::Classes::_18364
(00038731) USER32.dll
(000278B8) USER32.dll
(000275A3) USER32.dll
(0002735B) USER32.dll
(000B24D7) USER32.dll
(0007AD64) ntdll.dll.KiUserCallbackDispatcher
(000001EA) win32u.dll.NtUserMessageCall
(0002A36B) USER32.dll
(00027D69) USER32.dll
(000623B2) USER32.dll
(0002A148) USER32.dll
(0002BD59) UXTHEME.DLL
(000532DF) UXTHEME.DLL
(00027993) UXTHEME.DLL
(00026BC3) UXTHEME.DLL
(0002A277) USER32.dll
(00038731) USER32.dll
(000278B8) USER32.dll
(000275A3) USER32.dll
(00082A74) COMCTL32.DLL
(00039F67) ntdll.dll.RtlDeactivateActivationContextUnsafeFast
(000278B8) USER32.dll
(00027025) USER32.dll.CallWindowProcW
(003CF269) Vcl::Controls::TWinControl::DefaultHandler
(004D57B2) Vcl::Forms::TCustomForm::DefaultHandler
(003D0F95) Vcl::Controls::TWinControl::WMSysCommand
(004D6D81) Vcl::Forms::TCustomForm::WMSysCommand
(0003FBB3) TCustomScpExplorerForm::Dispatch
(00027025) USER32.dll.CallWindowProcW
(003C9FB6) Vcl::Controls::TControl::WndProc
(00039F67) ntdll.dll.RtlDeactivateActivationContextUnsafeFast
(003CF161) Vcl::Controls::TWinControl::WndProc
(00234FE0) System::Classes::_18364
%2

The problem happens rarely. I cannot reproduce it.
test@...

Invalid access to memory - Vcl::Comctrls::TListColumn::DoChange

<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 6.6.1

Error message:
Invalid access to memory.

Stack trace:
(0043F173) Vcl::Comctrls::TListColumn::DoChange
(005EE534) Jclhookexcept::_16406
(005EE71D) Jclhookexcept::_16409
(00C7798A) ____ExceptionHandler
(000B36B0) ntdll.dll
(000B367F) ntdll.dll
(0006DD2E) ntdll.dll
(0007A5AA) ntdll.dll.KiUserExceptionDispatcher
(00041532) ntdll.dll
(0003801A) gdi32full.dll.GdiRealizationInfo
(0003804E) gdi32full.dll.GdiRealizationInfo
(00093606) ntdll.dll
(00520BAB) Pastools::_16427
(0043F3A0) Vcl::Comctrls::TListColumn::SetWidth
(0004433D) TCustomScpExplorerForm::FormAfterMonitorDpiChanged
(00BEB671) C4927_5
(0003FDD3) USER32.dll
(00026D71) USER32.dll.SendMessageW
(0000028A) win32u.dll.NtUserRedrawWindow
(003CC816) Vcl::Controls::TWinControl::UnlockDrawing
(004D5BED) Vcl::Forms::TCustomForm::DoAfterMonitorDpiChanged
(004D5CAB) Vcl::Forms::TCustomForm::WMDpiChanged
(0003F848) TCustomScpExplorerForm::WMDpiChanged
(00029F7C) USER32.dll
(0003A197) ntdll.dll.RtlDeactivateActivationContextUnsafeFast
(004A071F) Vcl::Themes::TStyleManager::GetIsCustomStyleActive
(004A06F4) Vcl::Themes::TStyleManager::IsCustomStyleAvailable
(000387B1) USER32.dll
(0003F264) TCustomScpExplorerForm::Dispatch
(000275A8) USER32.dll
(000276B2) USER32.dll
(00027642) USER32.dll
(00032AC7) USER32.dll.GetWindowThreadProcessId
(000007CA) win32u.dll.NtUserGetObjectInformation
(003C85BA) Vcl::Controls::TControl::WndProc
(0002970F) UXTHEME.DLL
(003CD765) Vcl::Controls::TWinControl::WndProc
(004D193C) Vcl::Forms::TCustomForm::WndProc
(0002B09C) UXTHEME.DLL
(0003A010) UXTHEME.DLL
(00BEA06A) C4927_0
(00041CDD) ntdll.dll
(00041532) ntdll.dll
(00027A59) USER32.dll
(000006DA) win32u.dll.NtUserSetWindowLong
(000260B4) USER32.dll
(00093606) ntdll.dll
(00042ACA) ntdll.dll.RtlReleaseSRWLockExclusive
(00024369)UXTHEME.DLL
(003CCC70) Vcl::Controls::TWinControl::MainWndProc
(002336B8) System::Classes::_18364
(000387B1) USER32.dll
(000275A8) USER32.dll
(00027293) USER32.dll
(0002704B) USER32.dll
(000AAB77) USER32.dll
(0007A584) ntdll.dll.KiUserCallbackDispatcher
(003CB394) Vcl::Controls::_17058
(003CB513) Vcl::Controls::TWinControl::AlignControls
(004CEA86) Vcl::Forms::TScrollingWinControl::AlignControls
(004D1BFA) Vcl::Forms::TCustomForm::AlignControls
(003D0B9F) Vcl::Controls::TWinControl::GetClientRect
(004D0E07) Vcl::Forms::TCustomForm::GetClientRect
(003CB5FA) Vcl::Controls::TWinControl::AlignControl
(003CE71D) Vcl::Controls::TWinControl::WMSize
(004CF15C) Vcl::Forms::TScrollingWinControl::WMSize
(00166C83) System::TObject::Dispatch
(0003F2DB) TCustomScpExplorerForm::Dispatch
(00022EC2) USER32.dll.GetSystemMetricsForDpi
(003C85BA) Vcl::Controls::TControl::WndProc
(00009F94) GDI32.dll.ExtTextOutW
(00009FA0) GDI32.dll.ExtTextOutW
(000B9ADF) gdi32full.dll
(0002546C) UXTHEME.DLL
(000B9B22) gdi32full.dll.LpkExtTextOut
(0005220E) gdi32full.dll.ExtTextOutWImpl
(000001CA) win32u.dll.NtUserMessageCa

The problem happens rarely. I cannot reproduce it.
martin

Re: Invalid access to memory - Vcl::Comctrls::TListColumn::DoChange

@john: 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.
john@...

Invalid access to memory - Vcl::Comctrls::TListColumn::DoChange

winscp is redrawing the windows every minute, reconnects to sftp server every couple of minutes, interrupt and retakes file transfer, This is behaviour since winscp 6.5. Happens on my HP Z4 workstation with 3 4K monitors. On my laptop everything works flawless. I reinstalled windows but it didn't change the problem.

WinSCP 6.6

Error message:
Invalid access to memory.

Stack trace:
(0043EA33) Vcl::Comctrls::TListColumn::DoChange
(005EDDC0) Jclhookexcept::_16406
(005EDFA9) Jclhookexcept::_16409
(00C754DA) ____ExceptionHandler
(000B3570) ntdll.dll
(000B353F) ntdll.dll
(0006DD0E) ntdll.dll
(0007A7AA) ntdll.dll.KiUserExceptionDispatcher
(00003662)AppHook32_73206A66-D4B5-49D3-B33A-645E29D66BB3.dll
(003A75A5) Vcl::Graphics::TCustomCanvas::TextHeight
(00520419) Pastools::CalculateTextHeight
(00520436) Pastools::_16426
(0052046B) Pastools::_16427
(0043EC60) Vcl::Comctrls::TListColumn::SetWidth
(000441C5) TCustomScpExplorerForm::FormAfterMonitorDpiChanged
(00BE9A3D) C4925_5
(0003F9D3) USER32.dll
(00026941) USER32.dll.SendMessageW
(0000028A) win32u.dll.NtUserRedrawWindow
(003CC0D6) Vcl::Controls::TWinControl::UnlockDrawing
(004D54AD) Vcl::Forms::TCustomForm::DoAfterMonitorDpiChanged
(004D556B) Vcl::Forms::TCustomForm::WMDpiChanged
(0003F6D0) TCustomScpExplorerForm::WMDpiChanged
(00041CDD) ntdll.dll
(000075DA)AppHook32_73206A66-D4B5-49D3-B33A-645E29D66BB3.dll
(0003F174) TCustomScpExplorerForm::Dispatch
(000326B7) USER32.dll.GetWindowThreadProcessId
(000007CA) win32u.dll.NtUserGetObjectInformation
(003C7E7A) Vcl::Controls::TControl::WndProc
(0002965F) UXTHEME.DLL
(000935C6) ntdll.dll
(00052304) ntdll.dll.RtlLeaveCriticalSection
(00051D75) ntdll.dll
(000521B9) ntdll.dll
(003CD025) Vcl::Controls::TWinControl::WndProc
(004D11FC) Vcl::Forms::TCustomForm::WndProc
(0002AFEC) UXTHEME.DLL
(00BE84CA) C4925_0
(00038DA1) UXTHEME.DLL
(00027629) USER32.dll
(000006DA) win32u.dll.NtUserSetWindowLong
(00025C84) USER32.dll
(000935C6) ntdll.dll
(00042ACA) ntdll.dll.RtlReleaseSRWLockExclusive
(000242B9)UXTHEME.DLL
(003CC530) Vcl::Controls::TWinControl::MainWndProc
(00232F78) System::Classes::_18364
(000383B1) USER32.dll
(00027178) USER32.dll
(00026E63) USER32.dll
(00027279) USER32.dll
(00157C23) KERNELBASE.dll.GetProcessMitigationPolicy
(00078304) ntdll.dll.ZwQueryInformationProcess
(001579FA) KERNELBASE.dll.GetProcessMitigationPolicy
(00026C1B) USER32.dll
(000AA437) USER32.dll
(0007A784) ntdll.dll.KiUserCallbackDispatcher
(003CAC54) Vcl::Controls::_17058
(003CADD3) Vcl::Controls::TWinControl::AlignControls
(004CE346) Vcl::Forms::TScrollingWinControl::AlignControls
(004D14BA) Vcl::Forms::TCustomForm::AlignControls
(003D045F) Vcl::Controls::TWinControl::GetClientRect
(004D06C7) Vcl::Forms::TCustomForm::GetClientRect
(003CAEBA) Vcl::Controls::TWinControl::AlignControl
(003CDFDD) Vcl::Controls::TWinControl::WMSize
(004CEA1C) Vcl::Forms::TScrollingWinControl::WMSize
(00166543) System::TObject::Dispatch
(0003F1EB) TCustomScpExplorerForm::Dispatch
(00041CDD) ntdll.dll
(00041532) ntdll.dll
(003C7E7A) Vcl::Controls::TControl::WndProc
(0008FC11) ntdll.dll
(0008FDA2) ntdll.dll
(00091289) ntdll.dll
(00041CDD) ntdll.dll
(0056DDC6) Tb2hook::_16395
(00031E5A) USER32.dll
(003CD025) Vcl:

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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