Error occurred during logging. It's been turned off - TSessionLog::DoAdd

I selected three (relatively large files ~262MB) and the download went well for the first file, but the second file failed to transfer without error. Once I got the error, the system kept asking for my password and would not transfer the remaining files.

WinSCP 5.7.5

Error message:
Error occurred during logging. It's been turned off.

Out of memory

Stack trace:
(003B47D0) System::DynArraySetLength
(003B47D0) System::DynArraySetLength
(003B4901) System::DynArraySetLength
(00327233) System::Classes::TStringList::AddObject
(006C9D9C) TSessionLog::DoAdd
(006C9EDC) TSessionLog::Add
(006D5847) TSFTPFileSystem::SendPacket
(007073F2) TSFTPUploadQueue::SendPacket
(006FA6E0) TSFTPFileSystem::SFTPSource
(006F80BC) TSFTPFileSystem::SFTPSourceRobust
(006F724A) TSFTPFileSystem::CopyToRemote
(00722639) TTerminal::CopyToRemote
(0000C2FA) TCustomScpExplorerForm::ExecuteFileOperation
(0001D293) TCustomScpExplorerForm::RemoteFileControlDragDropFileOperation
(0001D41E) TCustomScpExplorerForm::RemoteFileControlDDFileOperation
(00614200) TUnixDirView::PerformItemDragDropOperation
(003D9662) Customdirview::TCustomDirView::DDProcessDropped
(003FEF4F) Dragdrop::TDragDrop::WndMethod
(0034021C) System::Classes::_18201
(000152F7) USER32.dll
(00015D35) USER32.dll
(000167BF) USER32.dll
(00016885) USER32.dll.DispatchMessageW

Thanks for your report.
I will take a look at this issue.

I've tried to copy a big (4 Gb) file from remote machine (via SFTP) to SMB windows share mounted as local drive.
WinSCP shown me the error, but still continued donwload the file. I hope, file wasn't broken. Unfortunately, I don't have logs, logging was turned off.
Hope this helps.

WinSCP 5.7.5

Error message:
Error occurred during logging. It's been turned off.

Out of memory

Stack trace:
(003B47D0) System::DynArraySetLength
(003B47D0) System::DynArraySetLength
(003B4901) System::DynArraySetLength
(00327233) System::Classes::TStringList::AddObject
(006C9D9C) TSessionLog::DoAdd
(006C9EDC) TSessionLog::Add
(006D8411) TSFTPFileSystem::ReceivePacket
(006D9000) TSFTPFileSystem::ReceiveResponse
(00706127) TSFTPQueue::ReceiveResponse
(006EF628) TSFTPQueue::ReceivePacket
(00702F73) TSFTPFileSystem::SFTPSink
(006FF452) TSFTPFileSystem::SFTPSinkRobust
(006FF246) TSFTPFileSystem::CopyToLocal
(00722EDD) TTerminal::CopyToLocal
(0000C39F) TCustomScpExplorerForm::ExecuteFileOperation
(0000CFA8) TCustomScpExplorerForm::ExecuteFileOperation
(0000D02F) TCustomScpExplorerForm::ExecuteFileOperationCommand
(0000D167) TCustomScpExplorerForm::ExecuteCopyOperationCommand
(00032086) TNonVisualDataModule::ExplorerActionsExecute
(003822E4) System::Actions::TContainedActionList::ExecuteAction
(00169E45) Vcl::Actnlist::TCustomAction::Execute

The problem happens rarely. I cannot reproduce it.

Thanks for your report.
I will take a look at this issue.

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>

Copying large tar.gz file from Windows to Linux server.

<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 5.7.6

Error message:
Error occurred during logging. It's been turned off.

Out of memory

Stack trace:
(003B480C) System::DynArraySetLength
(003B480C) System::DynArraySetLength
(003B493D) System::DynArraySetLength
(003272BF) System::Classes::TStringList::AddObject
(006CA9A8) TSessionLog::DoAdd
(006CAAE8) TSessionLog::Add
(006D6433) TSFTPFileSystem::SendPacket
(00707FDE) TSFTPUploadQueue::SendPacket
(006FB2CC) TSFTPFileSystem::SFTPSource
(006F8CA8) TSFTPFileSystem::SFTPSourceRobust
(006F7E36) TSFTPFileSystem::CopyToRemote
(00723225) TTerminal::CopyToRemote
(0000C302) TCustomScpExplorerForm::ExecuteFileOperation
(0001D2A9) TCustomScpExplorerForm::RemoteFileControlDragDropFileOperation
(0001D432) TCustomScpExplorerForm::RemoteFileControlDDFileOperation
(0061488A) TUnixDirView::PerformItemDragDropOperation
(003D969E) Customdirview::TCustomDirView::DDProcessDropped
(003FEF8B) Dragdrop::TDragDrop::WndMethod
(003402A8) System::Classes::_18201
(000374F1) USER32.dll
(00015C3B) USER32.dll
(0001553C) USER32.dll
(000152FB) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.

<IDK if this is related but I was transferring a file when I accidentally logged off my machine. Luckily a document needed saving so I was able to abort the logoff. A few minutes later WinScp coughed up an error which in our experience is rare.>

WinSCP 5.7.6

Error message:
Error occurred during logging. It's been turned off.

Out of memory

Stack trace:
(003B480C) System::DynArraySetLength
(003B480C) System::DynArraySetLength
(003B493D) System::DynArraySetLength
(003272BF) System::Classes::TStringList::AddObject
(006CA9A8) TSessionLog::DoAdd
(006CAAE8) TSessionLog::Add
(006A7A8D) TSecureShell::LogEvent
(006D648D) TSFTPFileSystem::SendPacket
(00707FDE) TSFTPUploadQueue::SendPacket
(006FB2CC) TSFTPFileSystem::SFTPSource
(006F8CA8) TSFTPFileSystem::SFTPSourceRobust
(006F7E36) TSFTPFileSystem::CopyToRemote
(00723225) TTerminal::CopyToRemote
(0000C302) TCustomScpExplorerForm::ExecuteFileOperation
(0001D2A9) TCustomScpExplorerForm::RemoteFileControlDragDropFileOperation
(0001D432) TCustomScpExplorerForm::RemoteFileControlDDFileOperation
(0061488A) TUnixDirView::PerformItemDragDropOperation
(003D969E) Customdirview::TCustomDirView::DDProcessDropped
(003FEF8B) Dragdrop::TDragDrop::WndMethod
(003402A8) System::Classes::_18201
(00007E6F) USER32.DLL.CallNextHookEx
(000080CC) USER32.DLL
(00009625) USER32.DLL
(0000967B) USER32.DLL.DispatchMessageW

The problem happens rarely. I cannot reproduce it.

Stalo se mi to poprvé, při kopírování souboru. Dialog na pozadí dál běží, ale data nenabývají.


WinSCP 5.7.7

Error message:
Error occurred during logging. It's been turned off.

Out of memory

Stack trace:
(003B4B00) System::DynArraySetLength
(003B4B00) System::DynArraySetLength
(003B4C31) System::DynArraySetLength
(003275B3) System::Classes::TStringList::AddObject
(006CB4F8) TSessionLog::DoAdd
(006CB638) TSessionLog::Add
(006D9B4D) TSFTPFileSystem::ReceivePacket
(006DA73C) TSFTPFileSystem::ReceiveResponse
(00707863) TSFTPQueue::ReceiveResponse
(006F0D64) TSFTPQueue::ReceivePacket
(007046AF) TSFTPFileSystem::SFTPSink
(00700B8E) TSFTPFileSystem::SFTPSinkRobust
(00700982) TSFTPFileSystem::CopyToLocal
(00724619) TTerminal::CopyToLocal
(0000C3A7) TCustomScpExplorerForm::ExecuteFileOperation
(0000CFB0) TCustomScpExplorerForm::ExecuteFileOperation
(0000D037) TCustomScpExplorerForm::ExecuteFileOperationCommand
(0000D16F) TCustomScpExplorerForm::ExecuteCopyOperationCommand
(0003209A) TNonVisualDataModule::ExplorerActionsExecute
(00382614) System::Actions::TContainedActionList::ExecuteAction
(0016A155) Vcl::Actnlist::TCustomAction::Execute

The problem happens rarely. I cannot reproduce it.

petr@... wrote:

Stalo se mi to poprvé, při kopírování souboru. Dialog na pozadí dál běží, ale data nenabývají.

After closing the Error Dialog, the transfer continues.

Sessions had been left online for a long time (several days), error cropped up when I logged on to the server again.

WinSCP 5.7.7

Error message:
Error occurred during logging. It's been turned off.

Out of memory

Stack trace:
(003B4B00) System::DynArraySetLength
(003B4B00) System::DynArraySetLength
(003B4C31) System::DynArraySetLength
(003275B3) System::Classes::TStringList::AddObject
(006CB4F8) TSessionLog::DoAdd
(006CB638) TSessionLog::Add
(006A9FEB) TSecureShell::EventSelectLoop
(006AA42D) TSecureShell::Idle
(0070C483) TTerminal::Idle
(00079C0D) TTerminalManager::Idle
(00014C47) TCustomScpExplorerForm::Idle
(000379EB) TNonVisualDataModule::DoIdle
(000379A8) TNonVisualDataModule::SessionIdleTimerTimer
(0034059C) System::Classes::_18201
(00007E6F) USER32.DLL.CallNextHookEx
(000080CC) USER32.DLL
(00009625) USER32.DLL
(0000967B) USER32.DLL.DispatchMessageW

The problem happens rarely. I cannot reproduce it.

Attempt to upload a large zip file.


WinSCP 5.7.7

Error message:
Error occurred during logging. It's been turned off.

Out of memory

Stack trace:
(003B4B00) System::DynArraySetLength
(003B4B00) System::DynArraySetLength
(003B4C31) System::DynArraySetLength
(003275B3) System::Classes::TStringList::AddObject
(006CB4F8) TSessionLog::DoAdd
(006CB638) TSessionLog::Add
(006D6F83) TSFTPFileSystem::SendPacket
(00708B2E) TSFTPUploadQueue::SendPacket
(006FBE1C) TSFTPFileSystem::SFTPSource
(006F97F8) TSFTPFileSystem::SFTPSourceRobust
(006F8986) TSFTPFileSystem::CopyToRemote
(00723D75) TTerminal::CopyToRemote
(0000C302) TCustomScpExplorerForm::ExecuteFileOperation
(0000CFB0) TCustomScpExplorerForm::ExecuteFileOperation
(0000D037) TCustomScpExplorerForm::ExecuteFileOperationCommand
(0000D16F) TCustomScpExplorerForm::ExecuteCopyOperationCommand
(00031EEA) TNonVisualDataModule::ExplorerActionsExecute
(00382614) System::Actions::TContainedActionList::ExecuteAction
(0016A155) Vcl::Actnlist::TCustomAction::Execute
(0034059C) System::Classes::_18201
(00007E6F) USER32.DLL.CallNextHookEx
(000080CC) USER32.DLL
(0000966A) USER32.DLL
(000096DB) USER32.DLL.DispatchMessageW

The problem happens rarely. I cannot reproduce it.

<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 5.9.2

Error message:
Error occurred during logging. It's been turned off.

Out of memory

Stack trace:
(003E7440) System::DynArraySetLength
(003E7440) System::DynArraySetLength
(003E7571) System::DynArraySetLength
(00359C03) System::Classes::TStringList::AddObject
(0072941C) TSessionLog::DoAdd
(0072955C) TSessionLog::Add
(007296BD) TSessionLog::AddException
(0072963C) TSessionLog::Add
(007296BD) TSessionLog::AddException
(0072963C) TSessionLog::Add
(007296BD) TSessionLog::AddException
(0072963C) TSessionLog::Add
(007296BD) TSessionLog::AddException
(0072963C) TSessionLog::Add
(007296BD) TSessionLog::AddException
(0072963C) TSessionLog::Add
(007296BD) TSessionLog::AddException
(0072963C) TSessionLog::Add
(007296BD) TSessionLog::AddException
(0072963C) TSessionLog::Add
(007296BD) TSessionLog::AddException
(0072963C) TSessionLog::Add
(007296BD) TSessionLog::AddException
(0072963C) TSessionLog::Add
(007296BD) TSessionLog::AddException
(0072963C) TSessionLog::Add
(007296BD) TSessionLog::AddException
(0072963C) TSessionLog::Add
(007296BD) TSessionLog::AddException
(0072963C) TSessionLog::Add
(007296BD) TSessionLog::AddException
(0072963C) TSessionLog::Add
(007296BD) TSessionLog::AddException
(0072963C) TSessionLog::Add
(007296BD) TSessionLog::AddException
(0072963C) TSessionLog::Add
(007296BD) TSessionLog::AddException
(0072963C) TSessionLog::Add
(007296BD) TSessionLog::Ad

The problem happens rarely. I cannot reproduce it.

I downloaded a large gzip file (~300MB), left the connection idling for 30 min, refreshed the screen and started downloading a new file. Then this error happened when 50% was transferred.

Once I clicked 'OK' on the popup error dialog, it continued downloading.

WinSCP 5.9.2

Error message:
Error occurred during logging. It's been turned off.

Out of memory

Stack trace:
(003E7440) System::DynArraySetLength
(003E7440) System::DynArraySetLength
(003E7571) System::DynArraySetLength
(00359C03) System::Classes::TStringList::AddObject
(0072941C) TSessionLog::DoAdd
(0072955C) TSessionLog::Add
(007396A4) TSFTPFileSystem::ReceivePacket
(0073A2B4) TSFTPFileSystem::ReceiveResponse
(00767C73) TSFTPQueue::ReceiveResponse
(007508AC) TSFTPQueue::ReceivePacket
(00764B5E) TSFTPFileSystem::SFTPSink
(00760BEE) TSFTPFileSystem::SFTPSinkRobust
(007609E2) TSFTPFileSystem::CopyToLocal
(007856B5) TTerminal::CopyToLocal
(0000DCC2) TCustomScpExplorerForm::ExecuteFileOperation
(0000E91C) TCustomScpExplorerForm::ExecuteFileOperation
(0001D63F) TCustomScpExplorerForm::RemoteFileControlFileOperation
(0001D99C) TCustomScpExplorerForm::RemoteFileControlDDEnd
(00408B22) Customdirview::TCustomDirView::DDDragDetect
(00655392) TUnixDirView::DDDragDetect
(00404F84) Customdirview::TCustomDirView::CNNotify
(0024A0E5) Vcl::Controls::TControl::WndProc
(0024EC29) Vcl::Controls::TWinControl::WndProc
(00292B57) Vcl::Comctrls::TCustomListView::WndProc
(0024ED8F) Vcl::Controls::_17076
(0024EC29) Vcl::Controls::TWinControl::WndProc
(0024E270) Vcl::Controls::TWinControl::MainWndProc
(00372BEC) System::Classes::_18201
(000374F1) USER32.dll
(00015C3B) USER32.dll
(0001581B) USER32.dll
(0001C167) USER32.dll
(00077E54) ntdll.dll.KiUserC

The problem happens rarely. I cannot reproduce it.

<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 5.9.2

Error message:
Une erreur est survenue lors de l''écriture du journal. Elle a été désactivée.

Out of memory

Trace de la pile :
(003E7440)
(003E7440)
(003E7571)
(00359C03)
(0072941C)
(0072955C)
(006A909A)
(006956D7)
(006A6D9C)
(006A7027)
(006A7113)
(006A716C)
(006A43CA)
(00775A3B)
(00774FC9)
(00774448)
(00653C98)
(00016BDC)
(0003CE17)
(0003CDD4)
(00372BEC)
(000152F7) USER32.dll
(00015D35) USER32.dll
(000167BF) USER32.dll
(00016885) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.