qBittorrent: 4.4.4 x64 Freezing and does not start the graphical environment.

[franciscofjs]

qBittorrent & operating system versions

qBittorrent: 4.4.4 x64 Operating system: Windows 11 Pro 22H2 22621.457 Windows Feature Experience Pack 1000.22634.1000.0

10.0.22621

What is the problem?

After upgrading to version 4.4.4 (yesterday) it freezes on startup and does not start the graphical environment. Downloading and sending at first works, but no graphical environment.

Steps to reproduce

1. Update the qBittorrent for 4.4.4 x64 in Windows 11 Pro 22H2 22621.457 Windows Feature Experience Pack 1000.22634.1000.0
2. Open Application

Additional context

No response

Log(s) & preferences file(s)

Click

[Preferences] Connection\ResolvePeerCountries=true Advanced\TrayIconStyle=Normal Bittorrent\MaxUploadsPerTorrent=20 Advanced\DisableRecursiveDownload=false General\CloseToTrayNotified=true Downloads\DblClOnTorDl=0 WebUI\Enabled=false Bittorrent\LSD=false General\NoSplashScreen=true Downloads\SavePath=G:/Program Files/Portable/Files_Swap/ General\AlternatingRowColors=true Advanced\EnableIconsInMenus=true MailNotification\sender=qBittorrent_notification@example.com General\HideZeroComboValues=0 Bittorrent\MaxConnecs=1500 MailNotification\email= MailNotification\enabled=false Connection\alt_speeds_on=false Downloads\UseIncompleteExtension=true MailNotification\smtp_server=smtp.changeme.com Downloads\TorrentExportDir=G:/Program Files/Portable/Codigo_Fonte/Torrents_Included Bittorrent\MaxUploads=200 Downloads\StartInPause=true General\PreventFromSuspendWhenSeeding=true General\CloseToTray=true Advanced\confirmTorrentDeletion=true General\Locale=en Advanced\updateCheck=true Downloads\TempPathEnabled=false General\MinimizeToTray=false General\SystrayEnabled=true Advanced\trackerPort=9000 MailNotification\req_auth=false Downloads\NewAdditionDialog=true General\CustomUIThemePath= General\ExitConfirm=true General\PreventFromSuspendWhenDownloading=true Scheduler\days=Weekday Downloads\DblClOnTorFn=1 Connection\PortRangeMin=56645 MailNotification\req_ssl=false Advanced\RecheckOnCompletion=true Advanced\confirmTorrentRecheck=true Downloads\FinishedTorrentExportDir=G:/Program Files/Portable/Codigo_Fonte/Torrents_Finalized Scheduler\end_time=@Variant(\0\0\0\xf\x4\x13\xb3\x80) Advanced\confirmRemoveAllTags=true General\HideZeroValues=false General\StartMinimized=false General\SpeedInTitleBar=true MailNotification\username= MailNotification\password= Queueing\QueueingEnabled=false Connection\ResolvePeerHostNames=false Downloads\NewAdditionDialogFront=true Downloads\TempPath=G:/Program Files/Portable/Downloading/ Scheduler\start_time=@Variant(\0\0\0\xf\x1\xee\x62\x80) General\UseCustomUITheme=false Downloads\ScanDirsLastPath=G:/Program Files/Portable/torrents_files_in Advanced\IgnoreLimitsLAN=true [BitTorrent] Session\AlternativeGlobalDLSpeedLimit=12800 Session\SubcategoriesEnabled=true Session\AsyncIOThreadsCount=20 Session\GlobalDLSpeedLimit=0 Session\MaxConnections=700 Session\AddTorrentPaused=true Session\UseAlternativeGlobalSpeedLimit=false Session\TempPath=G:/Program Files/Portable/Downloading Session\TorrentExportDirectory=G:/Program Files/Portable/Codigo_Fonte/Torrents_Included Session\FinishedTorrentExportDirectory=G:/Program Files/Portable/Codigo_Fonte/Torrents_Finalized Session\CheckingMemUsageSize=32 Session\IgnoreLimitsOnLAN=true Session\Port=56645 Session\Categories=@Variant(\0\0\0\b\0\0\0\v\0\0\0\xe\0T\0o\0r\0r\0\x65\0n\0t\0\0\0\n\0\0\0\0\0\0\0\x14\0R\0\x65\0t\0\x61\0i\0l\0_\0N\0\x65\0w\0\0\0\n\0\0\0\0\0\0\0*\0R\0\x65\0t\0\x61\0i\0l\0_\0I\0m\0p\0o\0r\0t\0\x65\0\x64\0/\0\x45\0r\0r\0o\0r\0\0\0\n\0\0\0\0\0\0\0\x1e\0R\0\x65\0t\0\x61\0i\0l\0_\0I\0m\0p\0o\0r\0t\0\x65\0\x64\0\0\0\n\0\0\0\0\0\0\0\f\0R\0\x65\0t\0\x61\0i\0l\0\0\0\n\0\0\0\0\0\0\0\xe\0O\0r\0g\0/\0N\0\x65\0w\0\0\0\n\0\0\0\0\0\0\0\x12\0O\0r\0g\0/\0\x45\0r\0r\0o\0r\0\0\0\n\0\0\0\0\0\0\0\x6\0O\0r\0g\0\0\0\n\0\0\0\0\0\0\0\x10\0I\0m\0\x61\0g\0\x65\0S\0\x65\0t\0\0\0\n\0\0\0V\0\x46\0:\0/\0P\0r\0o\0g\0r\0\x61\0m\0 \0\x46\0i\0l\0\x65\0s\0/\0P\0o\0r\0t\0\x61\0\x62\0l\0\x65\0/\0\x41\0s\0s\0\x65\0m\0\x62\0l\0y\0/\0I\0m\0\x61\0g\0\x65\0S\0\x65\0t\0\0\0\f\0H\0\x65\0n\0t\0\x61\0i\0\0\0\n\0\0\0\0\0\0\0\f\0\x44\0\x65\0s\0O\0r\0g\0\0\0\n\0\0\0\0) Session\MaxUploads=200 Session\AddExtensionToIncompleteFiles=true Session\AlternativeGlobalUPSpeedLimit=2048 Session\TempPathEnabled=false Session\BandwidthSchedulerEnabled=true Session\LSDEnabled=false Session\DefaultSavePath=G:/Program Files/Portable/Files_Swap Session\QueueingSystemEnabled=false Session\MaxUploadsPerTorrent=20 [TransferListFilters] selectedFilterIndex=3 trackerFilterState=false statusFilterState=true [AddNewTorrentDialog] TopLevel=true RememberLastSavePath=true SplitterState=@ByteArray(\0\0\0\xff\0\0\0\x1\0\0\0\x2\0\0\x1/\0\0\x1\0\0\xff\xff\xff\xff\x1\0\0\0\x1\0) DialogSize=@Size(917 601) qt5\treeHeaderState=@ByteArray(\0\0\0\xff\0\0\0\0\0\0\0\x1\0\0\0\0\0\0\0\0\x1\0\0\0\0\0\0\0\0\0\0\0\x6\x34\0\0\0\x3\0\0\0\x4\0\0\0\x64\0\0\0\x5\0\0\0\x64\0\0\0\x2\0\0\0\x64\0\0\x2\x2\0\0\0\x6\x1\x1\0\0\0\0\0\0\0\0\0\0\0\0\0\0\x64\xff\xff\xff\xff\0\0\0\x81\0\0\0\0\0\0\0\x6\0\0\x1:\0\0\0\x1\0\0\0\0\0\0\0\x64\0\0\0\x1\0\0\0\0\0\0\0\0\0\0\0\x1\0\0\0\0\0\0\0\x64\0\0\0\x1\0\0\0\0\0\0\0\0\0\0\0\x1\0\0\0\0\0\0\0\0\0\0\0\x1\0\0\0\0\0\0\x3\xe8\0\xff\xff\xff\xff) Enabled=true SavePathHistoryLength=12 DefaultCategory=Retail/New TreeHeaderState=@ByteArray(\0\0\0\xff\0\0\0\0\0\0\0\x1\0\0\0\0\0\0\0\0\x1\0\0\0\0\0\0\0\0\0\0\0\x6\x34\0\0\0\x3\0\0\0\x5\0\0\0\x64\0\0\0\x4\0\0\0\x64\0\0\0\x2\0\0\0\x64\0\0\x2\x2\0\0\0\x6\x1\x1\0\0\0\0\0\0\0\0\0\0\0\0\0\0\x64\xff\xff\xff\xff\0\0\0\x81\0\0\0\0\0\0\0\x6\0\0\x1:\0\0\0\x1\0\0\0\0\0\0\0\x64\0\0\0\x1\0\0\0\0\0\0\0\0\0\0\0\x1\0\0\0\0\0\0\0\x64\0\0\0\x1\0\0\0\0\0\0\0\0\0\0\0\x1\0\0\0\0\0\0\0\0\0\0\0\x1\0\0\0\0\0\0\x3\xe8\0\xff\xff\xff\xff) DownloadPathHistory=, G:/Program Files/Portable/Downloading/ SavePathHistory=F:/Program Files/Portable/Assembly/Downloading, G:/Program Files/Portable/Downloading, D:/Program Files/Portable/Assembly64/System64, D:/Program Files/Portable/Assembly64/Large_System, G:/Program Files/Portable/Files_Swap, F:/Program Files/Portable/Assembly/ImageSet, E:/Program Files/Portable/Assembly/Retail, I:/Program Files/Portable/Retail_All, E:/Program Files/Portable/Assembly/Retail_New, F:/Program Files/Portable/Assembly/Retail_New, D:/Program Files/Portable/Assembly64/Retail_New [SpeedWidget] graph_enable_9=false graph_enable_0=true graph_enable_6=false Enabled=true graph_enable_1=true period=1 graph_enable_5=false graph_enable_8=false graph_enable_4=false graph_enable_7=false graph_enable_2=false graph_enable_3=false [ShutdownConfirmDlg] DontConfirmAutoExit=false [Application] FileLogger\DeleteOld=true FileLogger\AgeType=2 FileLogger\Path=F:/Program Files/Portable/Assembly/Logs FileLogger\Age=2 FileLogger\Backup=true FileLogger\MaxSizeBytes=1013760000 FileLogger\Enabled=true [TorrentProperties] Peers\qt5\PeerListState=@ByteArray(\0\0\0\xff\0\0\0\0\0\0\0\x1\0\0\0\x1\0\0\0\0\x1\0\0\0\0\0\0\0\0\0\0\0\xe\0 \0\0\0\x1\0\0\0\r\0\0\0\x64\0\0\x5\x14\0\0\0\xe\x1\x1\0\0\0\0\0\0\0\0\0\0\0\0\0\0\x64\xff\xff\xff\xff\0\0\0\x81\0\0\0\0\0\0\0\xe\0\0\0\x64\0\0\0\x1\0\0\0\0\0\0\0\x64\0\0\0\x1\0\0\0\0\0\0\0\x64\0\0\0\x1\0\0\0\0\0\0\0\x64\0\0\0\x1\0\0\0\0\0\0\0\x64\0\0\0\x1\0\0\0\0\0\0\0\x64\0\0\0\x1\0\0\0\0\0\0\0\x64\0\0\0\x1\0\0\0\0\0\0\0\x64\0\0\0\x1\0\0\0\0\0\0\0\x64\0\0\0\x1\0\0\0\0\0\0\0\x64\0\0\0\x1\0\0\0\0\0\0\0\x64\0\0\0\x1\0\0\0\0\0\0\0\x64\0\0\0\x1\0\0\0\0\0\0\0\x64\0\0\0\x1\0\0\0\0\0\0\0\0\0\0\0\x1\0\0\0\0\0\0\x3\xe8\0\xff\xff\xff\xff) CurrentTab=4 qt5\FilesListState=@ByteArray(\0\0\0\xff\0\0\0\0\0\0\0\x1\0\0\0\x1\0\0\0\0\x1\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\x4p\0\0\0\x6\x1\x1\0\0\0\0\0\0\0\0\0\0\0\0\0\0\x64\xff\xff\xff\xff\0\0\0\x81\0\0\0\0\0\0\0\x6\0\0\x2\x97\0\0\0\x1\0\0\0\0\0\0\0\x39\0\0\0\x1\0\0\0\0\0\0\0\xad\0\0\0\x1\0\0\0\0\0\0\0l\0\0\0\x1\0\0\0\0\0\0\0\x43\0\0\0\x1\0\0\0\0\0\0\0\x44\0\0\0\x1\0\0\0\0\0\0\x3\xe8\0\xff\xff\xff\xff) Trackers\qt5\TrackerListState=@ByteArray(\0\0\0\xff\0\0\0\0\0\0\0\x1\0\0\0\x1\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\x3 \0\0\0\b\x1\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\x64\xff\xff\xff\xff\0\0\0\x81\0\0\0\0\0\0\0\b\0\0\0\x64\0\0\0\x1\0\0\0\0\0\0\0\x64\0\0\0\x1\0\0\0\0\0\0\0\x64\0\0\0\x1\0\0\0\0\0\0\0\x64\0\0\0\x1\0\0\0\0\0\0\0\x64\0\0\0\x1\0\0\0\0\0\0\0\x64\0\0\0\x1\0\0\0\0\0\0\0\x64\0\0\0\x1\0\0\0\0\0\0\0\x64\0\0\0\x1\0\0\0\0\0\0\x3\xe8\0\0\0\0\x64) Visible=true SplitterSizes="483,206" [TorrentOptionsDialog] Size=@Size(450 540) [TransferList] qt5\HeaderState="@ByteArray(\0\0\0\xff\0\0\0\0\0\0\0\x1\0\0\0\0\0\0\0\x5\x1\0\0\0\x1f\0\0\0\0\0\0\0\x2\0\0\0\x3\0\0\0\x1\0\0\0\x4\0\0\0\x5\0\0\0\x6\0\0\0\a\0\0\0\b\0\0\0\t\0\0\0\n\0\0\0\v\0\0\0\f\0\0\0\r\0\0\0\xe\0\0\0\xf\0\0\0\x10\0\0\0\x11\0\0\0\x12\0\0\0\x13\0\0\0\x14\0\0\0\x15\0\0\0\x16\0\0\0\x17\0\0\0\x18\0\0\0\x19\0\0\0\x1a\0\0\0\x1b\0\0\0\x1c\0\0\0\x1d\0\0\0\x1e\0\0\0\x1f\0\0\0\0\0\0\0\x3\0\0\0\x1\0\0\0\x2\0\0\0\x4\0\0\0\x5\0\0\0\x6\0\0\0\a\0\0\0\b\0\0\0\t\0\0\0\n\0\0\0\v\0\0\0\f\0\0\0\r\0\0\0\xe\0\0\0\xf\0\0\0\x10\0\0\0\x11\0\0\0\x12\0\0\0\x13\0\0\0\x14\0\0\0\x15\0\0\0\x16\0\0\0\x17\0\0\0\x18\0\0\0\x19\0\0\0\x1a\0\0\0\x1b\0\0\0\x1c\0\0\0\x1d\0\0\0\x1e\0\0\0\x1f\x3\0\xff=\0\0\0\xf\0\0\0\x15\0\0\0\x64\0\0\0\x14\0\0\0\x64\0\0\0\x17\0\0\0\x64\0\0\0\x16\0\0\0\x64\0\0\0\x11\0\0\0\x64\0\0\0\0\0\0\0\x64\0\0\0\x3\0\0\0\x64\0\0\0\x10\0\0\0\x64\0\0\0\x13\0\0\0\x64\0\0\0\x12\0\0\0\x64\0\0\0\x1d\0\0\0\x64\0\0\0\x1c\0\0\0\x64\0\0\0\x18\0\0\0\x64\0\0\0\x1b\0\0\0\x64\0\0\0\x1a\0\0\0\x64\0\0\x6\xf5\0\0\0\x1f\x1\x1\0\0\0\0\0\0\0\0\0\0\0\0\0\0\x64\xff\xff\xff\xff\0\0\0\x81\0\0\0\0\0\0\0\x1f\0\0\0\0\0\0\0\x1\0\0\0\0\0\0\0\0\0\0\0\x1\0\0\0\0\0\0\x2\x46\0\0\0\x1\0\0\0\0\0\0\0\x39\0\0\0\x1\0\0\0\0\0\0\0@\0\0\0\x1\0\0\0\0\0\0\0\x30\0\0\0\x1\0\0\0\0\0\0\0)\0\0\0\x1\0\0\0\0\0\0\0)\0\0\0\x1\0\0\0\0\0\0\0\x33\0\0\0\x1\0\0\0\0\0\0\0-\0\0\0\x1\0\0\0\0\0\0\0'\0\0\0\x1\0\0\0\0\0\0\0'\0\0\0\x1\0\0\0\0\0\0\0\x42\0\0\0\x1\0\0\0\0\0\0\0\xcd\0\0\0\x1\0\0\0\0\0\0\0P\0\0\0\x1\0\0\0\0\0\0\0L\0\0\0\x1\0\0\0\0\0\0\0\0\0\0\0\x1\0\0\0\0\0\0\0\0\0\0\0\x1\0\0\0\0\0\0\0\0\0\0\0\x1\0\0\0\0\0\0\0\0\0\0\0\x1\0\0\0\0\0\0\0\0\0\0\0\x1\0\0\0\0\0\0\0\0\0\0\0\x1\0\0\0\0\0\0\0\0\0\0\0\x1\0\0\0\0\0\0\0\0\0\0\0\x1\0\0\0\0\0\0\0\0\0\0\0\x1\0\0\0\0\0\0\x1\x1e\0\0\0\x1\0\0\0\0\0\0\0\0\0\0\0\x1\0\0\0\0\0\0\0\0\0\0\0\x1\0\0\0\0\0\0\0\0\0\0\0\x1\0\0\0\0\0\0\0\0\0\0\0\x1\0\0\0\0\0\0\0=\0\0\0\x1\0\0\0\0\0\0\x3\xe8\0\0\0\0\x64)" SubSortColumn=2 SubSortOrder=0 [Meta] MigrationVersion=3 [MainWindow] qt5\vsplitterState=@ByteArray(\0\0\0\xff\0\0\0\x1\0\0\0\x2\0\0\0\x83\0\0\x3\x66\x1\xff\xff\xff\xff\x1\0\0\0\x1\0) geometry=@ByteArray(\x1\xd9\xd0\xcb\0\x3\0\0\0\0\x3\0\0\0\0\x7f\0\0\a\x1\0\0\x3\xc2\0\0\x3\x1\0\0\0\x9e\0\0\a\0\0\0\x3\xc1\0\0\0\0\0\0\0\0\a\x80\0\0\x3\x1\0\0\0\x9e\0\0\a\0\0\0\x3\xc1) LastDir=G:/Program Files/Portable/Codigo_Fonte/Global/ImageSet [AutoRun] enabled=false program= ConsoleEnabled=false [General] MainWindowLastDir=G:/Program Files/Portable/Codigo_Fonte/Global/DVDRip [Network] Proxy\OnlyForTorrents=false Cookies=@Invalid() [LegalNotice] Accepted=true [WatchedFolderOptionsDialog] DialogSize=@Size(462 306) [StatisticsDialog] Size=@Size(286 401) [DownloadFromURLDialog] Size=@Size(501 220) [SpeedLimitDialog] Size=@Size(481 272) [GUI] Notifications\TorrentAdded=false DownloadTrackerFavicon=false Notifications\Enabled=true Log\Types=-1 Log\Enabled=true [PreviewSelectDialog] HeaderState=@ByteArray(\0\0\0\xff\0\0\0\0\0\0\0\x1\0\0\0\0\0\0\0\0\x1\0\0\0\0\0\0\0\0\0\0\0\x4\b\0\0\0\x1\0\0\0\x3\0\0\0\x64\0\0\x1\xd0\0\0\0\x4\x1\x1\0\x1\0\0\0\0\0\0\0\0\0\0\0\0\x64\xff\xff\xff\xff\0\0\0\x81\0\0\0\0\0\0\0\x4\0\0\x1\b\0\0\0\x1\0\0\0\0\0\0\0\x64\0\0\0\x1\0\0\0\0\0\0\0\x64\0\0\0\x1\0\0\0\0\0\0\0\0\0\0\0\x1\0\0\0\0\0\0\x3\xe8\0\0\0\0\x64) Size=@Size(462 256) [OptionsDialog] Size=@Size(779 591) LastViewedPage=3 HorizontalSplitterSizes=119, 633 [TorrentAdditionDlg] save_path_history=D:/Program Files/Portable/Assembly64/System64, E:/Program Files/Portable/Assembly/Retail_New, D:/Program Files/Portable/Assembly64/Large_System, E:/Program Files/Portable/Assembly/Retail, F:/Program Files/Portable/Assembly/ImageSet, F:/Program Files/Portable/Assembly/Retail_New, D:/Program Files/Portable/Assembly64/Retail_New [RSS] AutoDownloader\SmartEpisodeFilter=s(\\d+)e(\\d+), (\\d+)x(\\d+), "(\\d{4}[.\\-]\\d{1,2}[.\\-]\\d{1,2})", "(\\d{1,2}[.\\-]\\d{1,2}[.\\-]\\d{4})" AutoDownloader\DownloadRepacks=true [TrackerEntriesDialog] Size=@Size(506 500) [Core] AutoDeleteAddedTorrentFile=Never

[ghost]

Does your problem get fixed if you use the RC_1_2 build? Here's the link to RC_1_2 build https://www.fosshub.com/qBittorrent.html?dwl=qbittorrent_4.4.4_RC_1_2_qt5_x64_setup.exe

[franciscofjs]

Using this build opened the screen and i can see the torrents. However, when performing simple actions such as selecting another view status, it sometimes freezes and then comes back. It's in working condition but I don't think it's ok yet. But thank you very much for this compilation, now I can use the application.

[tristanleboss]

@franciscofjs and others: I discovered the memory usage shown by the task manager is the "working set" meaning the physical memory used by the process. Because of the config MemoryWorkingSetLimit default value of 512, this value will always be low but doesn't reflect the actual memory usage.

If you can, it would be interesting to know the real memory of your qbittorrent.exe process when the GUI hangs (the value from the task manager is not the correct one). To do so, use the freeware "Process Hacker" ( https://processhacker.sourceforge.io/ ), find your "qbittorrent.exe" in the list (you can use the search filter at the top right of the window), right click on it and click the bold "Properties" item. On the "Performance" tab, you will get the "Private Bytes" value which is the one that may be of interest. Also, go the the "Statistics" tab, click the "Details" button in the "Other" group and get the "File" handles count which may help us pinpoint the problem.

Another value to collect at the time of freeze is the usage percentage of your pagination file drive (should be the drive where windows is installed). To get this information, go to the "Performance" tab of the Windows task manager and look on the left for your drive: the percentage is there.

Also please tells us the amount of physical memory in your PC.

[franciscofjs]

During freezing

After Freezing

My PC has 32 gb of ram.

[tristanleboss]

@franciscofjs Looks exactly like what it does on my computer. Handles increase, memory usage rise,... and qBt becomes inresponsive.

I would encourage you to try the version @summerqB provided. For me, it solved the problem. It's a version using the previous version of an internal library (libtorrent v1.2 instead of v2): this version handled the file accesses differently (traditional way instead of through memory mapping).

Someone told me on another issue that the team is working on bringing back the old way of accessing files in the new version of the library. So until then, it's probably safe to keep using the version with the old library.

At least, when it would be possible to use the old way of accessing files in the new library, it will be possible to find out if it was the culprit of not.

[ghost]

So are you all using windows 11 that are experiencing freezes? qBt memory usage should not exceed the one set by working set limit.

Edit: I guess the default 512 MB working set limit is too low for some users due to too many torrents and thus GUI fails to get populated in time. It may get populated eventually.

[ghost]

During freezing

After Freezing

My PC has 32 gb of ram.

Are these from RC_1_2 build or the default one? In RC_1_2 there's no working set limit so memory usage will be limited by the cache size settings. In RC_2_0 memory usage should not exceed working set limit. You may try to increase that limit to see if that helps with the GUI freezes.

[ghost]

@franciscofjs could you close qBt and add this line to your qBt config file under [Application] heading.

MemoryWorkingSetLimit=4096

and then start the default qBt 4.4.4(RC_2_0)

[tristanleboss]

@summerqB Could be an interesting test but you need a lot of free physical RAM because 4gb of physical RAM for just one app is a lot. And it will probably either crash if Windows fails to allocate that amount or really slow down the computer by paging memory of other processes.

Me, for sure, I had this line set to 1024 since 4.4.3.1 RC_2_0 because I changed the value from the "Advanced" "Settings" panel and I have the line in my ini file. It was indeed limiting the amount of physical RAM qBt was using: the value shown in Windows taskmanager was never rising over this limit. But, it's just the working set memory (the physical one). The private bytes memory usage seems to be unlimited and, at least, for me and franciscofjs, it explodes to a few gigabytes.

It would be interesting to know if the memory usage is expected or if there is a memory leak somewhere.

Anyway, it's still probably worth it to wait for the pread use in libtorrent v2... if the memory usage still spirals out of control with libtorrent v2 pread, it would mean there is a problem somewhere else. If it doesn't, it means the problem is with the memory mapping thing or the way it's handled.

[ghost]

I suggested 4 GB just to see if the GUI is nonresponsive due to too low available memory. The user I mentioned has a 16 GB RAM setup.

[ghost]

It would be interesting to know if the memory usage is expected or if there is a memory leak somewhere.

A memory leak was observed related to network drivers on windows 11. Maybe you're affected by that as well. https://github.com/qbittorrent/qBittorrent/issues/17218

[tristanleboss]

@summerqB I use Windows 10 21H2. But I think it would impact RC_1_2 too which is clearly not because it runs for hours and the memory usage is damm stable.

[tristanleboss]

@franciscofjs and the others with freezes. You should try this special version made by a contributor and report if it works. It uses the new libtorrent v2 but with the old way of accessing files: https://github.com/qbittorrent/qBittorrent/issues/17545#issuecomment-1226878516

[franciscofjs]

Are these from RC_1_2 build or the default one? I'm using the RC_1_2 build in these screenshots. In the default version 4.4.4 x64 after hours do not come out of the freeze.

[tristanleboss]

It uses RC_2_0 but I'm still not sure if a config change should be done before starting it. Indeed, our GUI freezes so no way to change the settings from the app. I will let you know.

I didn't understand the screenshots where from RC_1_2. If RC_1_2 consumes that much memory before responding, I can imagine the RC_2_0 consumes far more. It still does use a lot of memory compared to me. Yes, for us, the 4.4.4 RC_2_0 never comes out of the freeze.

[franciscofjs]

@tristanleboss @summerqB Summary of my usage and testing:

• I used the default version GUI doesn't work, screen frozen after hours open
• Installed build RC_1_2 It worked, 30 seconds freezing during boot
• Installed build RC_2_0 and changed MemoryWorkingSetLimit=4096 It worked, 10 seconds freeze during startup but increased memory consumption.

[tristanleboss]

@franciscofjs Same results as me. The last test you can do is to try the special version from my previous comment. Its author confirmed me there is no config change to make.

[ghost]

@glassez seems like too low memory working set limit can cause GUI hang. Should we bump the default or use a automatic method to determine appropriate RAM limit according to installed RAM.

Based on https://github.com/qbittorrent/qBittorrent/issues/17605#issuecomment-1227131932

[tristanleboss]

@summerqB Yes, from the beginning, I think it's a memory problem due to this file memory mapping thing. But, at the same time, my RC_1_2 uses max 2 gb while RC_2_0 uses 8 gb... For franciscofjs, if RC_1_2 uses 3.2 gb, I don't want to imagine how much memory RC_2_0 will use!

I think - for us, at least - the drawbacks of this file memory mapping thing overcome its advantages. qBt shoudl probably be proactive by warning the user that it uses lot of memory and it may be unresponsive/slow and offer to switch to the alternative pread mode.

[ghost]

Everyone is aware of the memory usage of RC_2_0. It's not a bug, that's just how memory mapped I/O works. However, the working set size limit is a workaround on windows to limit the memory usage. Since this limit can be causing the GUI to freeze entirely, that would be considered an issue. At this point the pread-disk-io is aimed for libtorrent 2.1.0 series and I don't think it's going to be released anytime soon. So until then we have to stick with mmapped I/O or use RC_1_2 based I/O.

[franciscofjs]

Can I close the issue? I believe the topic has already been clarified, or do you wait for the release of the version to close? I don't know how this part works.

[jhart05]

The link to RC_1_2 up there seems to be going to 2_0 now.

Any idea where I can still get 1_2??

[jhart05]

So I've tried the other link like suggested.

Still I get nothing. Just sits there Not Responding. Left if like that all day long while at work.

I can't do any of the things below, because I can't even open the damn program.

This is ridiculous.

Exit your non-working qBittorrent. Temporarily archive, rename or move your configuration settings and resume data backup folders. Default locations for those are written in Wiki - FAQ page:

Where_does_qBittorrent_save_its_settings

https://github.com/qbittorrent/qBittorrent/wiki/Frequently-Asked-Questions#Where_does_qBittorrent_save_its_settings Now open qBittorrent - Help - About - Software Used Now edit your opening post to include what dependencies you where using. Exit qBittorrent Now rename or delete default backup folders that qBittorrent had recently created or just replace them with your previous Appdata folder backups. Now try if any other qBittorrent installer eventually helps to load your torrents or if qBittorrent is still not working fine. Installers with x64 (64-bit) and libtorrent v1.2.17+ should work better than the rest with libtorrent v2.0 for most use cases, but might not help you much if you had modified default settings to something bad or added too many torrents. You can also press CTRL + ALT + DEL key or right mouse click on Windows icon on taskbar to open Task Manager, there you can see if qBittorrent is using any resources when loading torrents and not responding. —

---

Jeffrey L. Hart

On 9/20/2022 1:44:57 AM, "Priit Uring" @.***> wrote:

@.*** https://github.com/jhart05

The link to RC_1_2 up there seems to be going to 2_0 now.

No it doesn't, for me I get redirected to the download page in FossHub with the list with newest qBittorrent installers.

Installers that don't have (RC_2_0), means the rest are with (RC_1_2). You can always install and verify used dependencies by opening and looking at qBittorrent - Help - About - Software Used. You could even create your own fork in GitHub to include newest dependencies if you want newest fixes before newer installers are made available.

Because by default installers now recommend and include RC_1_2 branch, then it's unnecessary to write it in the installers name if older installers never had both libtorrent branches written at the same time in the name anyways. The change was mentioned in the official News Page long ago.

https://www.qbittorrent.org/news.php Tuesday Aug 30th 2022 - qBittorrent v4.4.5 release

NOTE: The default builds for all OSs switched to libtorrent 1.2.x (RC_1_2) from 2.0.x (RC_2_0). Builds for libtorrent 2.0.x are also offered and are tagged with RC_2_0. The switch happened due to user demand and perceived performance issues. If until now you didn't experience any performance issue then go ahead and use the RC_2_0 builds.

— Reply to this email directly, view it on GitHub https://github.com/qbittorrent/qBittorrent/issues/17605#issuecomment-1251909712, or unsubscribe https://github.com/notifications/unsubscribe-auth/A3FNJGEK775WFDKUKJW5JPTV7FMOTANCNFSM57O4ETDA. You are receiving this because you were mentioned.Message ID: @.***>

[jhart05]

I tried installing RC_1_2.

Still just sits there not responding.

[tristanleboss]

@jhart05 Try 4.5.0-alpha1. They did a great job tacklink these freezing issues.

What I did was I installed 4.4.5 and replaced the files in C:\Program Files\qBittorrent with the files from the latest 4.5.0-alpha1 build. You can always reinstall 4.4.5 afterwards without losing your data.

You can find the latest 4.5.0-alpha1 ZIP file at the bottom of this page (in the "Artifacts" block): https://github.com/qbittorrent/qBittorrent/actions/runs/3137872165 I recommand using the libtorrent 1.2.7 version.

This version should first display a small messagebox with a loader bar then, once completed, display the UI.

If it doesn't work, tell us if you got the loading box and share your log file (qbittorrent.log found in C:\Users\%YOUR_USERNAME%\AppData\Local\qBittorrent\logs). Look at the log file and remove private/confidential info like IP addresses, ... before sharing it.

[jhart05]

Beautiful. Yes, this worked. Only took about 5 seconds to load. Thank you.

[jhart05]

Well it did for awhile. I'm now thinking the problem is my hard drive. I would like to remove all open torrents from my list. I'm sure there is a settings or startup file that stores that data. I would like to delete that.

[jhart05]

So I found the "AppData/Local/qBittorrent" folder. Deleted a couple items in there. Removed all my 1,000+ of open torrents. Exactly what I wanted. I am able to work now. I just won't be able to share as much stuff as before until I can severely upgrade my drives.

[JOELwindows7]

@jhart05 Try 4.5.0-alpha1. They did a great job tacklink these freezing issues.

What I did was I installed 4.4.5 and replaced the files in C:\Program Files\qBittorrent with the files from the latest 4.5.0-alpha1 build. You can always reinstall 4.4.5 afterwards without losing your data.

You can find the latest 4.5.0-alpha1 ZIP file at the bottom of this page (in the "Artifacts" block): https://github.com/qbittorrent/qBittorrent/actions/runs/3137872165 I recommand using the libtorrent 1.2.7 version.

This version should first display a small messagebox with a loader bar then, once completed, display the UI.

If it doesn't work, tell us if you got the loading box and share your log file (qbittorrent.log found in C:\Users\%YOUR_USERNAME%\AppData\Local\qBittorrent\logs). Look at the log file and remove private/confidential info like IP addresses, ... before sharing it.

Multi confirm, another sample confirm. it's working for me.

that 4.5 did solved the hang! yay. Also confirm, adding new torrent with current config I had (All trackers possible in bittorrent setting for new torrent) no more hang.

Was on (stable) 4.4.5_RC_2_0_qt6_x64. Possible cause similar as bellow quote, many torrent each so many trackers

So I found the "AppData/Local/qBittorrent" folder. Deleted a couple items in there. Removed all my 1,000+ of open torrents. Exactly what I wanted. I am able to work now. I just won't be able to share as much stuff as before until I can severely upgrade my drives.

Yes, I am downloading torrent and I've added all trackers as possible for some currently downloading and future new downloads because the torrent lacks complete seed, so I wanted everyone in the world who knows had one. Yep, it made it, suffocate.

[luzpaz]

Closing as no further complaints here once folks upgraded.