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Topic review

martin

Re: Copying files from remote side failed - _bufchain_prefix

@muamalhamidy: 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.
muamalhamidy@...

Copying files from remote side failed - _bufchain_prefix

<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:
Copying files from remote side failed.

Invalid access to memory.

Stack trace:
(00C7CF9F) _bufchain_prefix
(01003DEA) C6083_0
(01005E52) ____ExceptionHandler
(01002C0C) __ExceptionHandler
(00087A7F) ntdll.dll
(000740D1) ntdll.dll.KiUserExceptionDispatcher
(00C6B3D7) _ssh_conn_processed_data
(00C188BE) C3223_0
(00C189B1) _run_toplevel_callbacks
(00D6BCD7) TSecureShell::EventSelectLoop
(00D6AF43) TSecureShell::WaitForData
(00D68382) TSecureShell::Receive
(00DC09F8) TSFTPFileSystem::ReceivePacket
(00DC1BA8) TSFTPFileSystem::ReceiveResponse
(00DED8FB) TSFTPQueue::ReceiveResponse
(00DD9DC8) TSFTPQueue::ReceivePacket
(00DEACF5) TSFTPFileSystem::Sink
(00E1958D) TTerminal::Sink
(00E182D8) TTerminal::SinkRobust
(00E18100) TTerminal::DoCopyToLocal
(00DE8262) TSFTPFileSystem::CopyToLocal
(00E148E3) TTerminal::CopyToParallel
(00E14A25) TTerminal::CopyParallel
(00E17B9C) TTerminal::CopyToLocal
(00D200C5) TDownloadQueueItem::DoTransferExecute
(00D1E4A6) TQueueItem::Execute
(00D1D4D6) TTerminalItem::ProcessEvent
(00D1B80C) TSignalThread::Execute
(000CE0EF) Userinterface::C20_0
(0001ECC7) KERNEL32.DLL.BaseThreadInitThunk
(00066C6C) ntdll.dll.RtlGetAppContainerNamedObjectPath
(00066C39) ntdll.dll.RtlGetAppContainerNamedObjectPath

(00C7CFF1) _bufchain_fetch
(01003DEA) C6083_0
(01005E52) ____ExceptionHandler
(01002C0C) __ExceptionHandler
(00087A7F) ntdll.dll
(000740D1) ntdll.dll.KiUserExceptionDispatcher
(00C7D031) _bufchain_fetch_consume
(00C7D0A8) _bufchain_try_fetch_consume
(00C5C4C1) _ssh2_bpp_rekey_inadvisable
(00C5E825) _ssh_ppl_new_prompts
(00C188BE) C3223_0
(00C189B1) _run_toplevel_callbacks
(00D6BCD7) TSecureShell::EventSelectLoop
(00D6AF43) TSecureShell::WaitForData
(00D68382) TSecureShell::Receive
(00DC05FE) TSFTPFileSystem::ReceivePacket
(00DC1BA8) TSFTPFileSystem::ReceiveResponse
(00DED8FB) TSFTPQueue::ReceiveResponse
(00DECE8E) TSFTPQueue::Dispose
(00DEBAAA) TSFTPFileSystem::Sink
(00E1958D) TTerminal::Sink
(00E182D8) TTerminal::SinkRobust
(00E18100) TTerminal::DoCopyToLocal
(00DE8262) TSFTPFileSystem::CopyToLocal
(00E148E3) TTerminal::CopyToParallel
(00E14A25) TTerminal::CopyParallel
(00E17B9C) TTerminal::CopyToLocal
(00D200C5) TDownloadQueueItem::DoTransferExecute
(00D1E4A6) TQueueItem::Execute
(00D1D4D6) TTerminalItem::ProcessEvent
(00D1B80C) TSignalThread::Execute
(000CE0EF) Userinterface::C20_0
(0001ECC7) KERNEL32.DLL.BaseThreadInitThunk
(00066C6C) ntdll.dll.RtlGetAppContainerNamedObjectPath
(00066C39) ntdll.dll.RtlGetAppContainerNamedObjectPath

(01004455) C6083_0
(01005A2F) _ReThrowException
(00E1836A) TTerminal::SinkRobust
(00E18100) TTerminal::DoCopyToLocal
(00DE8262) TSFTPFileSystem::CopyToLocal
(00E148E3) TTerminal::CopyToParallel
(00E14A25) TTerminal::CopyParallel
(00E17B9C) TTerminal::CopyToLocal
(00D200C5) TDownloadQueueItem::DoTransferExecute
(00D1E4A6) TQueueItem::Execute
(00D1D4D6) TTerminalItem::ProcessEvent
(00D1B80C) TSignalThread:%3

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.
martin

Re: 列出'/blast'的目录项时出错。 - _bufchain_prefix

@charles_kiko: 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.
charles_kiko@...

列出'/blast'的目录项时出错。 - _bufchain_prefix

<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 6.1.1

Error message:
列出'/blast'的目录项时出错。

无效的内存访问。

Stack trace:
(00C7C56F) _bufchain_prefix
(0100350E) C6083_0
(01005576) ____ExceptionHandler
(01002330) __ExceptionHandler
(000974CF) ntdll.dll
(00077751) ntdll.dll.KiUserExceptionDispatcher
(00C609CB) _ssh2_connection_new
(00C60EFA) _ssh2_chanreq_init
(00C61384) _ssh2_chanreq_init
(00C6B6BC) _ssh_is_bare
(00D68860) TSecureShell::Send
(00DBE6A4) TSFTPFileSystem::SendPacket
(00DC14DD) TSFTPFileSystem::SendPacketAndReceiveResponse
(00DD0F87) TSFTPFileSystem::ReadDirectory
(00E00F3C) TTerminal::CustomReadDirectory
(00E002A5) TTerminal::ReadDirectory
(00DFF694) TTerminal::ReloadDirectory
(00C9126B) TUnixDirView::ReloadDirectory
(0001BA16) TCustomScpExplorerForm::Idle
(00053267) TNonVisualDataModule::DoIdle
(00053224) TNonVisualDataModule::SessionIdleTimerTimer
(00214D98) System::Classes::_18201
(000312E1) USER32.dll
(00022001) USER32.dll
(000208C0) USER32.dll
(0002040B) USER32.dll.DispatchMessageW

(01003B79) C6083_0
(01005153) _ReThrowException
(00DD101B) TSFTPFileSystem::ReadDirectory
(00E00F3C) TTerminal::CustomReadDirectory
(00E002A5) TTerminal::ReadDirectory
(00DFF694) TTerminal::ReloadDirectory
(00C9126B) TUnixDirView::ReloadDirectory
(0001BA16) TCustomScpExplorerForm::Idle
(00053267) TNonVisualDataModule::DoIdle
(00053224) TNonVisualDataModule::SessionIdleTimerTimer
(00214D98) System::Classes::_18201
(000312E1) USER32.dll
(00022001) USER32.dll
(000208C0) USER32.dll
(0002040B) USER32.dll.DispatchMessageW

(01003B79) C6083_0
(01005153) _ReThrowException
(00E00F6B) TTerminal::CustomReadDirectory
(00E002A5) TTerminal::ReadDirectory
(00DFF694) TTerminal::ReloadDirectory
(00C9126B) TUnixDirView::ReloadDirectory
(0001BA16) TCustomScpExplorerForm::Idle
(00053267) TNonVisualDataModule::DoIdle
(00053224) TNonVisualDataModule::SessionIdleTimerTimer
(00214D98) System::Classes::_18201
(000312E1) USER32.dll
(00022001) USER32.dll
(000208C0) USER32.dll
(0002040B) USER32.dll.DispatchMessageW

Error caused by too many files under the path!!!

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.
andreas.bodmer@...

Error listing directory '/4.3.2' - _bufchain_prefix

<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 5.21

Error message:
Error listing directory '/4.3.2'.

Invalid access to memory.

Stack trace:
(00C59C2F)
(00FD0D0E)
(00FD2D76)
(00FCFB30)
(00087B7F) ntdll.dll
(00074001) ntdll.dll.KiUserExceptionDispatcher
(00C624B6)
(00C625E6)
(00C4A7BC)
(00BFE226)
(00BFE319)
(00D4412E)
(00D42F28)
(00D92BEF)
(00D4244E)
(00D41187)
(00D43478)
(00D4078A)
(00D96A12)
(00D98194)
(00DC3DD7)
(00DC1F86)
(00DC2C79)
(00DEB4E7)
(00DE9E50)
(00DE9C7D)
(00DB6432)
(00DE89A0)
(00DE8B11)
(00DE968A)
(00CF90A5)
(00CF7C2A)
(00CF6C5A)
(00CF4FA0)
(000C150B)
(0001EEF7) KERNEL32.DLL.BaseThreadInitThunk
(00066BBC) ntdll.dll.RtlGetAppContainerNamedObjectPath
(00066B89) ntdll.dll.RtlGetAppContainerNamedObjectPath

(00C59C2F) _bufchain_prefix
(00FD0D0E) C5412_0
(00FD2D76) ____ExceptionHandler
(00FCFB30) __ExceptionHandler
(00087B7F) ntdll.dll
(00074001) ntdll.dll.KiUserExceptionDispatcher
(00C4A767) _ssh_conn_processed_data
(00BFE226) C2593_0
(00BFE319) _run_toplevel_callbacks
(00D4412E) TSecureShell::EventSelectLoop
(00D43393) TSecureShell::WaitForData
(00D4078A) TSecureShell::Receive
(00D96A12) TSFTPFileSystem::ReceivePacket
(00D98194) TSFTPFileSystem::ReceiveResponse
(00DC3DD7) TSFTPUploadQueue::ReceiveResponse
(00DC1F86) TSFTPQueue::Dispose
(00DC2C79) TSFTPAsynchronousQueue::Dispose
(00DEB4E7) TTerminal::Source
(00DE9E50) TTerminal::SourceRobust
(00DE9C7D) TTerminal::DoCopyToRemote
(00DB6432) TSFTPFileSystem::CopyToRemote
(00DE89A0) TTerminal::CopyToParallel
(00DE8B11) TTerminal::CopyParallel
(00DE968A) TTerminal::CopyToRemote
(00CF90A5) TUploadQueueItem::DoTransferExecute
(00CF7C2A) TQueueItem::Execute
(00CF6C5A) TTerminalItem::ProcessEvent
(00CF4FA0) TSignalThread::Execute
(000C150B) Userinterface::C20_0
(0001EEF7) KERNEL32.DLL.BaseThreadInitThunk
(00066BBC) ntdll.dll.RtlGetAppContainerNamedObjectPath
(00066B89) ntdll.dll.RtlGetAppContainerNamedObjectPath

(00C59C2F) _bufchain_prefix
(00FD0D0E) C5412_0
(00FD2D76) ____ExceptionHandler
(00FCFB30) __ExceptionHandler
(00087B7F) ntdll.dll
(00074001) ntdll.dll.KiUserExceptionDispatcher
(00C4A767) _ssh_conn_processed_data
(00BFE226) C2593_0
(00BFE319) _run_toplevel_callbacks
(00D4412E) TSecureShell::EventSelectLoop
(00D42F28) TSecureShell::Close
(00D92BEF) TSFTPFileSystem::Close
(00D4244E) TSecureShell::FatalError
(00D41187) TSecureShell::TimeoutAbort
(00D43478) TSecureShell::WaitForData
(00D4078A) TSecureShell::Receive
(00D96A12) TSFTPFileSystem::ReceivePacket
(00D98194) TSFTPFileSystem::ReceiveResponse
(00DC3DD7) TSFTPUploadQueue::ReceiveResponse
(00DC1F86) TSFTPQueue::Dispose
(00DC2C79) TSFTPAsynchronousQueue::Dispose
(00DEB4E7) TTerminal::Source
(00DE9E50) TTerminal::SourceRobust
(00DE9C7D) TTerminal::DoCopyToRemote
(00DB6432) TSFTPFileSystem::CopyToRemote
(00DE89A0) TTerminal::CopyToParallel
(00DE8B11) TTerminal::CopyParallel
(00DE968A) TTerminal::CopyToRemo

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

Fehler beim Anzeigen des Verzeichnisses „/home/us/file_path“ - _bufchain_prefix

<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 5.19.1

Error message:
Fehler beim Anzeigen des Verzeichnisses „/home/user/file_path“.

Unzulässiger Zugriff auf einen Speicherbereich.

Stapelverfolgung:
(00C55733) _bufchain_prefix
(00FBC006) C5294_3
(00FBE06E) ____ExceptionHandler
(00FBAE28) __ExceptionHandler
(000878AF) ntdll.dll
(00073EE1) ntdll.dll.KiUserExceptionDispatcher
(00C12A63) _ssh2_connection_new
(00C12B86) _ssh2_connection_new
(00C112E1) _ssh2_connection_new
(00C12768) _ssh2_connection_new
(00C29CE9) _ssh_ppl_free
(00BF3C12) C2597_0
(00BF3D05) _run_toplevel_callbacks
(00D353AC) TSecureShell::EventSelectLoop
(00D33E24) TSecureShell::Close
(00D0FEE7) TSCPFileSystem::Close
(00D176F1) TSCPFileSystem::SCPSource
(00D15E97) TSCPFileSystem::CopyToRemote
(00DD8B73) TTerminal::CopyToRemote
(00CEE3D9) TUploadQueueItem::DoTransferExecute
(00CECF5E) TQueueItem::Execute
(00CEBF8E) TTerminalItem::ProcessEvent
(00CEA300) TSignalThread::Execute
(000C16D7) Userinterface::C20_0
(0001EA27) KERNEL32.DLL.BaseThreadInitThunk
(00066A9C) ntdll.dll.RtlGetAppContainerNamedObjectPath
(00066A69) ntdll.dll.RtlGetAppContainerNamedObjectPath

(00FBC671) C5294_3
(00FBDC4B) _ReThrowException
(00D16197) TSCPFileSystem::CopyToRemote
(00DD8B73) TTerminal::CopyToRemote
(00CEE3D9) TUploadQueueItem::DoTransferExecute
(00CECF5E) TQueueItem::Execute
(00CEBF8E) TTerminalItem::ProcessEvent
(00CEA300) TSignalThread::Execute
(000C16D7) Userinterface::C20_0
(0001EA27) KERNEL32.DLL.BaseThreadInitThunk
(00066A9C) ntdll.dll.RtlGetAppContainerNamedObjectPath
(00066A69) ntdll.dll.RtlGetAppContainerNamedObjectPath

(00C55733) _bufchain_prefix
(00FBC006) C5294_3
(00FBE06E) ____ExceptionHandler
(00FBAE28) __ExceptionHandler
(000878AF) ntdll.dll
(00073EE1) ntdll.dll.KiUserExceptionDispatcher
(00C12A63) _ssh2_connection_new
(00C12F76) _ssh2_chanreq_init
(00C134A7) _ssh2_chanreq_init
(00C199DD) _ssh2_transport_notify_auth_done
(00C0903C) _ssh_throttle_conn
(00D324D8) TSecureShell::Send
(00D32879) TSecureShell::SendLine
(00D16293) TSCPFileSystem::CopyToRemote
(00DD8B73) TTerminal::CopyToRemote
(00CEE3D9) TUploadQueueItem::DoTransferExecute
(00CECF5E) TQueueItem::Execute
(00CEBF8E) TTerminalItem::ProcessEvent
(00CEA300) TSignalThread::Execute
(000C16D7) Userinterface::C20_0
(0001EA27) KERNEL32.DLL.BaseThreadInitThunk
(00066A9C) ntdll.dll.RtlGetAppContainerNamedObjectPath
(00066A69) ntdll.dll.RtlGetAppContainerNamedObjectPath

(00C55733) _bufchain_prefix
(00FBC006) C5294_3
(00FBE06E) ____ExceptionHandler
(00FBAE28) __ExceptionHandler
(000878AF) ntdll.dll
(00073EE1) ntdll.dll.KiUserExceptionDispatcher
(00C12A63) _ssh2_connection_new
(00C12F76) _ssh2_chanreq_init
(00C134A7) _ssh2_chanreq_init
(00C199DD) _ssh2_transport_notify_auth_done
(00C0903C) _ssh_throttle_conn
(00D324D8) TSecureShell::Send
(00D32879) TSecureShell::SendLine
(00D10749) TSCPFileSystem::SendCommand
(00D11178) TSCPFileSystem::ExecCommand
(00D1129B) TSCPFileSystem::ExecCommand
(00D1298C) TSCPFileSystem::R

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

Copying files to remote side failed - _bufchain_prefix

<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 5.17.9

Error message:
Copying files to remote side failed.

Invalid access to memory.

Stack trace:
(00C2CC43) _bufchain_prefix
(00F89F32) C5296_0
(00F8BF9A) ____ExceptionHandler
(00F88D54) __ExceptionHandler
(000861AF) ntdll.dll
(00072B31) ntdll.dll.KiUserExceptionDispatcher
(00C2E36E) C2739_0
(00C2E877) _handle_got_event
(00D098CF) TSecureShell::EventSelectLoop
(00D0677F) TSecureShell::DispatchSendBuffer
(00D06BF2) TSecureShell::Send
(00D54289) TSFTPFileSystem::SendPacket
(00D837C2) TSFTPUploadQueue::SendPacket
(00D79404) TSFTPFileSystem::Source
(00DA998B) TTerminal::Source
(00DA848A) TTerminal::SourceRobust
(00DA82C9) TTerminal::DoCopyToRemote
(00D7606E) TSFTPFileSystem::CopyToRemote
(00DA7019) TTerminal::CopyToParallel
(00DA7189) TTerminal::CopyParallel
(00DA7CEC) TTerminal::CopyToRemote
(00CC1ACD) TUploadQueueItem::DoTransferExecute
(00CC06EE) TQueueItem::Execute
(00CBF722) TTerminalItem::ProcessEvent
(00CBDAB8) TSignalThread::Execute
(000BCFFB) Userinterface::C20_0
(0001EA27) KERNEL32.DLL.BaseThreadInitThunk
(000665F2) ntdll.dll.RtlGetAppContainerNamedObjectPath
(000665BF) ntdll.dll.RtlGetAppContainerNamedObjectPath

(00F8A59D) C5296_0
(00F8BB77) _ReThrowException
(00DA84C7) TTerminal::SourceRobust
(00DA82C9) TTerminal::DoCopyToRemote
(00D7606E) TSFTPFileSystem::CopyToRemote
(00DA7019) TTerminal::CopyToParallel
(00DA7189) TTerminal::CopyParallel
(00DA7CEC) TTerminal::CopyToRemote
(00CC1ACD) TUploadQueueItem::DoTransferExecute
(00CC06EE) TQueueItem::Execute
(00CBF722) TTerminalItem::ProcessEvent
(00CBDAB8) TSignalThread::Execute
(000BCFFB) Userinterface::C20_0
(0001EA27) KERNEL32.DLL.BaseThreadInitThunk
(000665F2) ntdll.dll.RtlGetAppContainerNamedObjectPath
(000665BF) ntdll.dll.RtlGetAppContainerNamedObjectPath

The problem happens rarely. I cannot reproduce it.
martin

Re: Invalid access to memory - _bufchain_prefix

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.
mrahman@...

Invalid access to memory - _bufchain_prefix

<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 5.15.9

Error message:
Invalid access to memory.

Stack trace:
(0069117D) _bufchain_prefix
(0092812A) C5157_3
(0092A192) ____ExceptionHandler
(00926F4C) __ExceptionHandler
(00087D6F) ntdll.dll
(00073211) ntdll.dll.KiUserExceptionDispatcher
(006C4B76) C2591_0
(006C508B) _handle_got_event
(00796253) TSecureShell::EventSelectLoop
(00795483) TSecureShell::WaitForData
(007904F9) TSecureShell::Init
(0078FE56) TSecureShell::Open
(008141C1) TTerminal::Open
(0074FDA3) TTerminalThread::TerminalOpenEvent
(0074AD00) TSignalThread::Execute
(000BB6A3) Userinterface::C20_0
(00015357) KERNEL32.DLL.BaseThreadInitThunk
(00066B72) ntdll.dll.RtlGetAppContainerNamedObjectPath
(00066B3F) ntdll.dll.RtlGetAppContainerNamedObjectPath
Authentication log (see session log for details):
Using username "mrahman".
Authenticating with public key "MRahman@mrahman-new-lap" from agent.

Authentication failed.

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.
martin

Re: Copying files from remote side failed - _bufchain_prefix

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.
rtornqvist@...

Copying files from remote side failed - _bufchain_prefix

<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 5.15.5

Error message:
Copying files from remote side failed.

Invalid access to memory.

Stack trace:
(00691269) _bufchain_prefix
(0092827A) C5157_3
(0092A2E2) ____ExceptionHandler
(0092709C) __ExceptionHandler
(0006248E) ntdll.dll
(0000F15E) ntdll.dll.KiUserExceptionDispatcher
(006C4C62) C2591_0
(006C5177) _handle_got_event
(007963AB) TSecureShell::EventSelectLoop
(00793BCB) TSecureShell::Send
(007DD8D5) TSFTPFileSystem::SendPacket
(0080B66F) TSFTPQueue::SendPacket
(0080B6B6) TSFTPFixedLenQueue::SendRequests
(00807EBF) TSFTPFileSystem::Sink
(0083418E) TTerminal::Sink
(0083318A) TTerminal::SinkRobust
(00832FD0) TTerminal::DoCopyToLocal
(0080605E) TSFTPFileSystem::CopyToLocal
(00832B1B) TTerminal::CopyToLocal
(0000FAA0) TCustomScpExplorerForm::ExecuteCopyMoveFileOperation
(00010538) TCustomScpExplorerForm::ExecuteFileOperation
(0001070C) TCustomScpExplorerForm::ExecuteFileOperation
(00021C73) TCustomScpExplorerForm::RemoteFileControlFileOperation
(000220A9) TCustomScpExplorerForm::RemoteFileControlDDEnd
(00446B9E) Customdirview::TCustomDirView::DDDragDetect
(006D0E5A) TUnixDirView::DDDragDetect
(00442E82) Customdirview::TCustomDirView::CNNotify
(0027469D) Vcl::Controls::TControl::WndProc
(002791E1) Vcl::Controls::TWinControl::WndProc
(002BC4BB) Vcl::Comctrls::TCustomListView::WndProc
(00279347) Vcl::Controls::_17076
(002791E1) Vcl::Controls::TWinControl::WndProc
(00278828) Vcl::Controls::TWinControl::MainWndProc
(003A3E44) System::Cl

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.
martin

Re: Invalid access to memory - _bufchain_prefix

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.
martinkaru@...

Invalid access to memory - _bufchain_prefix

<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 5.13.6

Error message:
Invalid access to memory.

Stack trace:
(0063D179) _bufchain_prefix
(008BF022) C5105_0
(008C108A) ____ExceptionHandler
(008BDE44) __ExceptionHandler
(00089BEF) ntdll.dll
(00070AB1) ntdll.dll.KiUserExceptionDispatcher
(00670ADE) C2538_0
(00670FF3) _handle_got_event
(0073ABC7) TSecureShell::EventSelectLoop
(00739DF7) TSecureShell::WaitForData
(007374E2) TSecureShell::Receive
(007831BA) TSFTPFileSystem::ReceivePacket
(00784920) TSFTPFileSystem::ReceiveResponse
(007AA262) TSFTPFileSystem::Sink
(007D4A3F) TTerminal::Sink
(007D3A82) TTerminal::SinkRobust
(007D38D0) TTerminal::DoCopyToLocal
(007A9222) TSFTPFileSystem::CopyToLocal
(007D00F4) TTerminal::CopyToParallel
(006F2E11) TParallelTransferQueueItem::DoExecute
(006F18FE) TQueueItem::Execute
(006F0932) TTerminalItem::ProcessEvent
(006EECC8) TSignalThread::Execute
(000A3D57) Userinterface::C20_0
(00017672) KERNEL32.DLL.BaseThreadInitThunk
(00064E15) ntdll.dll.RtlGetAppContainerNamedObjectPath
(00064DE2) ntdll.dll.RtlGetAppContainerNamedObjectPath

(008BF68D) C5105_0
(008C0C67) _ReThrowException
(007D3B14) TTerminal::SinkRobust
(007D38D0) TTerminal::DoCopyToLocal
(007A9222) TSFTPFileSystem::CopyToLocal
(007D00F4) TTerminal::CopyToParallel
(006F2E11) TParallelTransferQueueItem::DoExecute
(006F18FE) TQueueItem::Execute
(006F0932) TTerminalItem::ProcessEvent
(006EECC8) TSignalThread::Execute
(000A3D57) Userinterface::C20_0
(00017672) KERNEL32.DLL.BaseThreadInitThunk
(00064E15) ntdll.dll.RtlGetAppContainerNamedObjectPath
(00064DE2) ntdll.dll.RtlGetAppContainerNamedObjectPath

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.
martinkaru@...

Invalid access to memory - _bufchain_prefix

<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 5.13.6

Error message:
Invalid access to memory.

Stack trace:
(0063D179) _bufchain_prefix
(008BF022) C5105_0
(008C108A) ____ExceptionHandler
(008BDE44) __ExceptionHandler
(00089BEF) ntdll.dll
(00070AB1) ntdll.dll.KiUserExceptionDispatcher
(00670ADE) C2538_0
(00670FF3) _handle_got_event
(0073ABC7) TSecureShell::EventSelectLoop
(00739DF7) TSecureShell::WaitForData
(007374E2) TSecureShell::Receive
(007831BA) TSFTPFileSystem::ReceivePacket
(00784920) TSFTPFileSystem::ReceiveResponse
(007AA262) TSFTPFileSystem::Sink
(007D4A3F) TTerminal::Sink
(007D3A82) TTerminal::SinkRobust
(007D38D0) TTerminal::DoCopyToLocal
(007A9222) TSFTPFileSystem::CopyToLocal
(007D00F4) TTerminal::CopyToParallel
(006F2E11) TParallelTransferQueueItem::DoExecute
(006F18FE) TQueueItem::Execute
(006F0932) TTerminalItem::ProcessEvent
(006EECC8) TSignalThread::Execute
(000A3D57) Userinterface::C20_0
(00017672) KERNEL32.DLL.BaseThreadInitThunk
(00064E15) ntdll.dll.RtlGetAppContainerNamedObjectPath
(00064DE2) ntdll.dll.RtlGetAppContainerNamedObjectPath

(008BF68D) C5105_0
(008C0C67) _ReThrowException
(007D3B14) TTerminal::SinkRobust
(007D38D0) TTerminal::DoCopyToLocal
(007A9222) TSFTPFileSystem::CopyToLocal
(007D00F4) TTerminal::CopyToParallel
(006F2E11) TParallelTransferQueueItem::DoExecute
(006F18FE) TQueueItem::Execute
(006F0932) TTerminalItem::ProcessEvent
(006EECC8) TSignalThread::Execute
(000A3D57) Userinterface::C20_0
(00017672) KERNEL32.DLL.BaseThreadInitThunk
(00064E15) ntdll.dll.RtlGetAppContainerNamedObjectPath
(00064DE2) ntdll.dll.RtlGetAppContainerNamedObjectPath

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

Invalid access to memory - _bufchain_prefix

<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 5.7.7

Error message:
Invalid access to memory.

Stack trace:
(005E1F55) _bufchain_prefix
(007E08AA) C4799_0
(007E2912) ____ExceptionHandler
(007DF88C) __ExceptionHandler
(00062496) ntdll.dll
(0000F13E) ntdll.dll.KiUserExceptionDispatcher
(0060B596) C2276_0
(0060BA13) _handle_got_event
(006AA0EA) TSecureShell::EventSelectLoop
(006AA42D) TSecureShell::Idle
(0070C483) TTerminal::Idle
(00079C0D) TTerminalManager::Idle
(00014C47) TCustomScpExplorerForm::Idle
(000379EB) TNonVisualDataModule::DoIdle
(000379A8) TNonVisualDataModule::SessionIdleTimerTimer
(0034059C) System::Classes::_18201
(000152F7) USER32.dll
(00015D35) USER32.dll
(000167CE) USER32.dll
(00016895) USER32.dll.DispatchMessageW

(007E0F15) C4799_0
(007E24EF) _ReThrowException
(00079C52) TTerminalManager::Idle
(00014C47) TCustomScpExplorerForm::Idle
(000379EB) TNonVisualDataModule::DoIdle
(000379A8) TNonVisualDataModule::SessionIdleTimerTimer
(0034059C) System::Classes::_18201
(000152F7) USER32.dll
(00015D35) USER32.dll
(000167CE) USER32.dll
(00016895) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.