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Posted

I had a automounted path in features.filesearch.actions.recentfolders in ~/Library/Preferences/com.runningwithcrayons.Alfred-2.plist

Namely /net/host/path on a automounted nfs share

 

Now I moved with my laptop to a different location and probing that path with sysctl stat resulted in a timeout, moreover it caused the entire UI to hang (beachball).

That occured when tabing into the Alfred Actions list.

 

Either you move that stat probing into a different thread to avoid the UI hang or even better remove the path from the recentfolders dict if its unavailable.

 

I'm happy to provide you with more details...

Posted

I had a automounted path in features.filesearch.actions.recentfolders in ~/Library/Preferences/com.runningwithcrayons.Alfred-2.plist

Namely /net/host/path on a automounted nfs share

 

Now I moved with my laptop to a different location and probing that path with sysctl stat resulted in a timeout, moreover it caused the entire UI to hang (beachball).

That occured when tabing into the Alfred Actions list.

 

Either you move that stat probing into a different thread to avoid the UI hang or even better remove the path from the recentfolders dict if its unavailable.

 

I'm happy to provide you with more details...

 

Alfred does check if the path exists before showing it so I think this could actually be occurring in NSFileManger's test for if the path exists.

 

When hanging, could you open Activity monitor, select Alfred and do a sample process for me to see?

Posted (edited)

Sure, I'm trying to attach the file

Sampling process 716 for 3 seconds with 1 millisecond of run time between samples
Sampling completed, processing symbols...
Analysis of sampling Alfred 2 (pid 716) every 1 millisecond
Process:         Alfred 2 [716]
Path:            /Applications/Alfred 2.app/Contents/MacOS/Alfred 2
Load Address:    0x100000000
Identifier:      com.runningwithcrayons.Alfred-2
Version:         2.1.1 (227)
Code Type:       X86-64
Parent Process:  launchd [583]

Date/Time:       2013-11-22 15:31:53.590 +0100
OS Version:      Mac OS X 10.9 (13A603)
Report Version:  7

Call graph:
    2884 Thread_2435   DispatchQueue_1: com.apple.main-thread  (serial)
    + 2884 ???  (in Alfred 2)  load address 0x100000000 + 0x1d18  [0x100001d18]
    +   2884 NSApplicationMain  (in AppKit) + 940  [0x7fff8b4c3803]
    +     2884 -[NSApplication run]  (in AppKit) + 646  [0x7fff8b4d8a29]
    +       2884 ???  (in Alfred 2)  load address 0x100000000 + 0x42ac  [0x1000042ac]
    +         2884 -[NSApplication sendEvent:]  (in AppKit) + 3395  [0x7fff8b688ca2]
    +           2884 -[NSWindow sendEvent:]  (in AppKit) + 1843  [0x7fff8b6e781b]
    +             2884 -[NSTextView keyDown:]  (in AppKit) + 658  [0x7fff8b73aecd]
    +               2884 -[NSView interpretKeyEvents:]  (in AppKit) + 180  [0x7fff8b71ab5d]
    +                 2884 -[NSTextInputContext handleEvent:]  (in AppKit) + 845  [0x7fff8b73b322]
    +                   2884 -[NSKeyBindingManager(NSKeyBindingManager_MultiClients) interpretEventAsCommand:forClient:]  (in AppKit) + 1392  [0x7fff8b71c2d1]
    +                     2884 -[NSTextView doCommandBySelector:]  (in AppKit) + 158  [0x7fff8b74a214]
    +                       2884 -[NSTextField textView:doCommandBySelector:]  (in AppKit) + 93  [0x7fff8b74a2bf]
    +                         2884 ???  (in Alfred 2)  load address 0x100000000 + 0x7c07  [0x100007c07]
    +                           2884 ???  (in Alfred 2)  load address 0x100000000 + 0x8121  [0x100008121]
    +                             2884 -[AlfredActionsView initWithArgs:]  (in Alfred Framework) + 872  [0x1000f4348]
    +                               2884 -[AlfredActionsManager actionsForType:multi:]  (in Alfred Framework) + 87  [0x1000f6e40]
    +                                 2884 -[AlfredActionsManager defaultActionsForType:multi:]  (in Alfred Framework) + 1131  [0x1000f6963]
    +                                   2884 -[AlfredFeatureFileAction init]  (in Alfred Framework) + 144  [0x100103834]
    +                                     2884 -[AlfredFeatureFileAction recentPaths]  (in Alfred Framework) + 618  [0x100104e5b]
    +                                       2884 -[NSFileManager fileExistsAtPath:isDirectory:]  (in Foundation) + 126  [0x7fff8e8d5f6f]
    +                                         2884 _NSFileExistsAtPath  (in Foundation) + 196  [0x7fff8e8d608d]
    +                                           2884 lstat$INODE64  (in libsystem_kernel.dylib) + 10  [0x7fff8d44d70a]
    2884 Thread_2452   DispatchQueue_2: com.apple.libdispatch-manager  (serial)
    + 2884 _dispatch_mgr_thread  (in libdispatch.dylib) + 52  [0x7fff8d8ac152]
    +   2884 _dispatch_mgr_invoke  (in libdispatch.dylib) + 239  [0x7fff8d8ac43d]
    +     2884 kevent64  (in libsystem_kernel.dylib) + 10  [0x7fff8d44d662]
    2884 Thread_2610
    + 2884 thread_start  (in libsystem_pthread.dylib) + 13  [0x7fff8f803fc9]
    +   2884 _pthread_start  (in libsystem_pthread.dylib) + 137  [0x7fff8f7ff72a]
    +     2884 _pthread_body  (in libsystem_pthread.dylib) + 138  [0x7fff8f7ff899]
    +       2884 _NSEventThread  (in AppKit) + 144  [0x7fff8b6851ce]
    +         2884 CFRunLoopRunSpecific  (in CoreFoundation) + 309  [0x7fff952af275]
    +           2882 __CFRunLoopRun  (in CoreFoundation) + 1161  [0x7fff952af939]
    +           ! 2882 __CFRunLoopServiceMachPort  (in CoreFoundation) + 181  [0x7fff952b0315]
    +           !   2882 mach_msg  (in libsystem_kernel.dylib) + 64  [0x7fff8d447d18]
    +           !     2882 mach_msg_trap  (in libsystem_kernel.dylib) + 10  [0x7fff8d448a1a]
    +           2 __CFRunLoopRun  (in CoreFoundation) + 1830  [0x7fff952afbd6]
    +             2 __CFRunLoopDoSource1  (in CoreFoundation) + 478  [0x7fff952beade]
    +               2 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE1_PERFORM_FUNCTION__  (in CoreFoundation) + 41  [0x7fff952beb69]
    +                 2 __CFMachPortPerform  (in CoreFoundation) + 388  [0x7fff952bed04]
    +                   2 MessageHandler(__CFMachPort*, void*, long, void*)  (in HIToolbox) + 51  [0x7fff94874bc6]
    +                     2 PullEventsFromWindowServerOnConnection(unsigned int, unsigned char, __CFMachPortBoost*)  (in HIToolbox) + 85  [0x7fff94874c4d]
    +                       2 CGEventCreateNextEvent  (in CoreGraphics) + 33  [0x7fff93a5d02a]
    +                         1 CGSGetNextEventRecordInternal  (in CoreGraphics) + 78  [0x7fff93a5d0be]
    +                         : 1 CGSSnarfAndDispatchDatagrams  (in CoreGraphics) + 162  [0x7fff93a5d258]
    +                         :   1 _CGSGetPortStreamInline  (in CoreGraphics) + 119  [0x7fff93a5d443]
    +                         :     1 mach_msg  (in libsystem_kernel.dylib) + 64  [0x7fff8d447d18]
    +                         :       1 mach_msg_trap  (in libsystem_kernel.dylib) + 10  [0x7fff8d448a1a]
    +                         1 CGSGetNextEventRecordInternal  (in CoreGraphics) + 99  [0x7fff93a5d0d3]
    2884 Thread_4240
    + 2884 start_wqthread  (in libsystem_pthread.dylib) + 13  [0x7fff8f803fb9]
    +   2884 _pthread_wqthread  (in libsystem_pthread.dylib) + 330  [0x7fff8f800f08]
    +     2884 __workq_kernreturn  (in libsystem_kernel.dylib) + 10  [0x7fff8d44ce6a]
    2884 Thread_4742: com.apple.NSURLConnectionLoader
    + 2884 thread_start  (in libsystem_pthread.dylib) + 13  [0x7fff8f803fc9]
    +   2884 _pthread_start  (in libsystem_pthread.dylib) + 137  [0x7fff8f7ff72a]
    +     2884 _pthread_body  (in libsystem_pthread.dylib) + 138  [0x7fff8f7ff899]
    +       2884 __NSThread__main__  (in Foundation) + 1318  [0x7fff8e92770b]
    +         2884 +[NSURLConnection(Loader) _resourceLoadLoop:]  (in Foundation) + 348  [0x7fff8e927907]
    +           2884 CFRunLoopRunSpecific  (in CoreFoundation) + 309  [0x7fff952af275]
    +             2884 __CFRunLoopRun  (in CoreFoundation) + 1161  [0x7fff952af939]
    +               2884 __CFRunLoopServiceMachPort  (in CoreFoundation) + 181  [0x7fff952b0315]
    +                 2884 mach_msg  (in libsystem_kernel.dylib) + 64  [0x7fff8d447d18]
    +                   2884 mach_msg_trap  (in libsystem_kernel.dylib) + 10  [0x7fff8d448a1a]
    2884 Thread_4744
    + 2884 start_wqthread  (in libsystem_pthread.dylib) + 13  [0x7fff8f803fb9]
    +   2884 _pthread_wqthread  (in libsystem_pthread.dylib) + 330  [0x7fff8f800f08]
    +     2884 __workq_kernreturn  (in libsystem_kernel.dylib) + 10  [0x7fff8d44ce6a]
    2884 Thread_4750: com.apple.CFSocket.private
    + 2884 thread_start  (in libsystem_pthread.dylib) + 13  [0x7fff8f803fc9]
    +   2884 _pthread_start  (in libsystem_pthread.dylib) + 137  [0x7fff8f7ff72a]
    +     2884 _pthread_body  (in libsystem_pthread.dylib) + 138  [0x7fff8f7ff899]
    +       2884 __CFSocketManager  (in CoreFoundation) + 867  [0x7fff952fbd43]
    +         2884 __select  (in libsystem_kernel.dylib) + 10  [0x7fff8d44c9aa]
    764 Thread_4478
    + 764 start_wqthread  (in libsystem_pthread.dylib) + 13  [0x7fff8f803fb9]
    +   764 _pthread_wqthread  (in libsystem_pthread.dylib) + 330  [0x7fff8f800f08]
    +     764 __workq_kernreturn  (in libsystem_kernel.dylib) + 10  [0x7fff8d44ce6a]
    764 Thread_4743
      764 start_wqthread  (in libsystem_pthread.dylib) + 13  [0x7fff8f803fb9]
        764 _pthread_wqthread  (in libsystem_pthread.dylib) + 330  [0x7fff8f800f08]
          764 __workq_kernreturn  (in libsystem_kernel.dylib) + 10  [0x7fff8d44ce6a]

Total number in stack (recursive counted multiple, when >=5):

Sort by top of stack, same collapsed (when >= 5):
        __workq_kernreturn  (in libsystem_kernel.dylib)        7296
        mach_msg_trap  (in libsystem_kernel.dylib)        5767
        __select  (in libsystem_kernel.dylib)        2884
        kevent64  (in libsystem_kernel.dylib)        2884
        lstat$INODE64  (in libsystem_kernel.dylib)        2884

Binary Images:
       0x100000000 -        0x100014fff +com.runningwithcrayons.Alfred-2 (2.1.1 - 227) <7C02A937-1173-34BF-8A3F-47CFA4B2B51C> /Applications/Alfred 2.app/Contents/MacOS/Alfred 2
       0x100022000 -        0x10007eff7 +com.growl.growlframework (2.0.1 - 2.0.1) <6C20B93B-75B2-30A4-8267-8C81BF90872B> /Applications/Alfred 2.app/Contents/Frameworks/Growl.framework/Versions/A/Growl
       0x1000b1000 -        0x10019eff7 +com.runningwithcrayons.Alfred-Framework (2.0 - 1) <B1DD7320-D964-3916-8D43-650714CF53C7> /Applications/Alfred 2.app/Contents/Frameworks/Alfred Framework.framework/Versions/A/Alfred Framework
       0x1039dc000 -        0x1039dffff  libspindump.dylib (161) <588EDDE0-B20A-3649-92B7-C2226EB237E8> /usr/lib/libspindump.dylib
       0x1039e5000 -        0x1039e6fff  com.apple.AddressBook.LocalSourceBundle (8.0 - 1365) <260EDDAA-A812-3097-BE14-A63EA4BEDD31> /System/Library/Address Book Plug-Ins/LocalSource.sourcebundle/Contents/MacOS/LocalSource
       0x103f60000 -        0x103f64ff7  com.apple.DirectoryServicesSource (8.0 - 1365) <2F2D5BAA-F006-3701-922C-37EF076DE3D1> /System/Library/Address Book Plug-Ins/DirectoryServices.sourcebundle/Contents/MacOS/DirectoryServices
       0x103f6b000 -        0x103fb7ff6  com.apple.AddressBook.CardDAVPlugin (10.9 - 424) <C5AC5902-39C2-3A08-9967-5EAA000228EE> /System/Library/Address Book Plug-Ins/CardDAVPlugin.sourcebundle/Contents/MacOS/CardDAVPlugin
    0x7fff63f75000 -     0x7fff63fa8817  dyld (239.3 - ???) <D1DFCF3F-0B0C-332A-BCC0-87A851B570FF> /usr/lib/dyld
    0x7fff8a628000 -     0x7fff8aa09ffe  libLAPACK.dylib (1094.5) <7E7A9B8D-1638-3914-BAE0-663B69865986> /System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/vecLib.framework/Versions/A/libLAPACK.dylib
    0x7fff8aa0a000 -     0x7fff8aa39fff  com.apple.DebugSymbols (106 - 106) <E1BDED08-523A-36F4-B2DA-9D5C712F0AC7> /System/Library/PrivateFrameworks/DebugSymbols.framework/Versions/A/DebugSymbols
    0x7fff8aa3a000 -     0x7fff8aa88ff9  libstdc++.6.dylib (60) <0241E6A4-1368-33BE-950B-D0A175C41F54> /usr/lib/libstdc++.6.dylib
    0x7fff8aa89000 -     0x7fff8aa94fff  libGL.dylib (9.0.83) <984A960A-C159-3AE5-8B40-E2B451F6C712> /System/Library/Frameworks/OpenGL.framework/Versions/A/Libraries/libGL.dylib
    0x7fff8aa95000 -     0x7fff8aa95fff  com.apple.Accelerate.vecLib (3.9 - vecLib 3.9) <F8D0CC77-98AC-3B58-9FE6-0C25421827B6> /System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/vecLib.framework/Versions/A/vecLib
    0x7fff8b4c1000 -     0x7fff8c035ff7  com.apple.AppKit (6.9 - 1265) <0E9FC8BF-DA3C-34C5-91CC-12BC922B5F01> /System/Library/Frameworks/AppKit.framework/Versions/C/AppKit
    0x7fff8c036000 -     0x7fff8c0c5ff7  com.apple.Metadata (10.7.0 - 800.12) <04486C95-3E49-36C4-89B6-925E925BB417> /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/Metadata.framework/Versions/A/Metadata
    0x7fff8c0c6000 -     0x7fff8c111fff  com.apple.ImageCaptureCore (5.0 - 5.0) <F529EDDC-E2F5-30CA-9938-AF23296B5C5B> /System/Library/Frameworks/ImageCaptureCore.framework/Versions/A/ImageCaptureCore
    0x7fff8c112000 -     0x7fff8c123ff7  libsystem_asl.dylib (217.1.4) <655FB343-52CF-3E2F-B14D-BEBF5AAEF94D> /usr/lib/system/libsystem_asl.dylib
    0x7fff8c124000 -     0x7fff8c40efff  com.apple.CoreServices.CarbonCore (1077.13 - 1077.13) <21324540-8B84-3333-ADB8-D3D5181D4639> /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/CarbonCore.framework/Versions/A/CarbonCore
    0x7fff8c40f000 -     0x7fff8c411fff  com.apple.Mangrove (1.0 - 1) <72F5CBC7-4E78-374E-98EA-C3700136904E> /System/Library/PrivateFrameworks/Mangrove.framework/Versions/A/Mangrove
    0x7fff8c412000 -     0x7fff8c44cff3  com.apple.bom (12.0 - 192) <989690DB-B9CC-3DB5-89AE-B5D33EDC474E> /System/Library/PrivateFrameworks/Bom.framework/Versions/A/Bom
    0x7fff8c4b0000 -     0x7fff8c4ccfff  com.apple.frameworks.preferencepanes (16.0 - 16.0) <059E99D8-67C2-3B59-B5E7-850DD7A92D75> /System/Library/Frameworks/PreferencePanes.framework/Versions/A/PreferencePanes
    0x7fff8c4cd000 -     0x7fff8c4cdfff  com.apple.Carbon (154 - 157) <45A9A40A-78FF-3EA0-8FAB-A4F81052FA55> /System/Library/Frameworks/Carbon.framework/Versions/A/Carbon
    0x7fff8c4ff000 -     0x7fff8c621ff1  com.apple.avfoundation (2.0 - 651.12) <03E595B7-A559-3D4D-90E9-BCA603E3A39E> /System/Library/Frameworks/AVFoundation.framework/Versions/A/AVFoundation
    0x7fff8c624000 -     0x7fff8c64bff7  libsystem_network.dylib (241.3) <8B1E1F1D-A5CC-3BAE-8B1E-ABC84337A364> /usr/lib/system/libsystem_network.dylib
    0x7fff8c656000 -     0x7fff8c6baff3  com.apple.datadetectorscore (5.0 - 354.0) <9ACF24B8-3268-3134-A5BC-D72C9371A195> /System/Library/PrivateFrameworks/DataDetectorsCore.framework/Versions/A/DataDetectorsCore
    0x7fff8c8d3000 -     0x7fff8c8defff  libkxld.dylib (2422.1.72) <C88EF3E6-B31F-3E12-BE9B-562D912BA733> /usr/lib/system/libkxld.dylib
    0x7fff8c8df000 -     0x7fff8ce4ffff  com.apple.CoreAUC (6.22.08 - 6.22.08) <F306D552-2220-3160-88EA-C916193C5EFD> /System/Library/PrivateFrameworks/CoreAUC.framework/Versions/A/CoreAUC
    0x7fff8ce50000 -     0x7fff8ce55ff7  com.apple.MediaAccessibility (1.0 - 43) <D309D83D-5FAE-37A4-85ED-FFBDA8B66B82> /System/Library/Frameworks/MediaAccessibility.framework/Versions/A/MediaAccessibility
    0x7fff8ce56000 -     0x7fff8cf3afff  com.apple.coreui (2.1 - 231) <432DB40C-6B7E-39C8-9FB5-B95917930056> /System/Library/PrivateFrameworks/CoreUI.framework/Versions/A/CoreUI
    0x7fff8cf3b000 -     0x7fff8cf4dfff  com.apple.ImageCapture (9.0 - 9.0) <BE0B65DA-3031-359B-8BBA-B9803D4ADBF4> /System/Library/Frameworks/Carbon.framework/Versions/A/Frameworks/ImageCapture.framework/Versions/A/ImageCapture
    0x7fff8cfde000 -     0x7fff8cfdefff  com.apple.ApplicationServices (48 - 48) <3E3F01A8-314D-378F-835E-9CC4F8820031> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/ApplicationServices
    0x7fff8cfdf000 -     0x7fff8cfe0fff  libunc.dylib (28) <62682455-1862-36FE-8A04-7A6B91256438> /usr/lib/system/libunc.dylib
    0x7fff8cfe1000 -     0x7fff8cfe2ffb  libremovefile.dylib (33) <3543F917-928E-3DB2-A2F4-7AB73B4970EF> /usr/lib/system/libremovefile.dylib
    0x7fff8cfe3000 -     0x7fff8cfedff7  com.apple.bsd.ServiceManagement (2.0 - 2.0) <2D27B498-BB9C-3D88-B05A-76908A8A26F3> /System/Library/Frameworks/ServiceManagement.framework/Versions/A/ServiceManagement
    0x7fff8cfee000 -     0x7fff8d308ff7  com.apple.MediaToolbox (1.0 - 1273.29) <6260E68B-7E50-3D49-8C0A-7145614C13D8> /System/Library/Frameworks/MediaToolbox.framework/Versions/A/MediaToolbox
    0x7fff8d309000 -     0x7fff8d3daff7  com.apple.QuickLookUIFramework (5.0 - 622.3) <9741E66B-3978-35F6-8846-B6C528945611> /System/Library/Frameworks/Quartz.framework/Versions/A/Frameworks/QuickLookUI.framework/Versions/A/QuickLookUI
    0x7fff8d3db000 -     0x7fff8d3dfff7  libGIF.dylib (1038) <C29B4323-1B9E-36B9-96C2-7CEDBAA124F0> /System/Library/Frameworks/ImageIO.framework/Versions/A/Resources/libGIF.dylib
    0x7fff8d437000 -     0x7fff8d453ff7  libsystem_kernel.dylib (2422.1.72) <D14913DB-47F1-3591-8DAF-D4B4EF5F8818> /usr/lib/system/libsystem_kernel.dylib
    0x7fff8d45e000 -     0x7fff8d891ffb  com.apple.vision.FaceCore (3.0.0 - 3.0.0) <F42BFC9C-0B16-35EF-9A07-91B7FDAB7FC5> /System/Library/PrivateFrameworks/FaceCore.framework/Versions/A/FaceCore
    0x7fff8d892000 -     0x7fff8d8a8fff  com.apple.CoreMediaAuthoring (2.2 - 947) <B01FBACC-DDD5-30A8-BCCF-57CE24ABA329> /System/Library/PrivateFrameworks/CoreMediaAuthoring.framework/Versions/A/CoreMediaAuthoring
    0x7fff8d8a9000 -     0x7fff8d8c3fff  libdispatch.dylib (339.1.9) <46878A5B-4248-3057-962C-6D4A235EEF31> /usr/lib/system/libdispatch.dylib
    0x7fff8d8c4000 -     0x7fff8d8e1fff  com.apple.facetimeservices (10.0 - 1000) <9B4815BA-4305-381D-A178-F79E10B2C6E9> /System/Library/PrivateFrameworks/FTServices.framework/Versions/A/FTServices
    0x7fff8d905000 -     0x7fff8da73ff7  libBLAS.dylib (1094.5) <DE93A590-5FA5-32A2-A16C-5D7D7361769F> /System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/vecLib.framework/Versions/A/libBLAS.dylib
    0x7fff8db29000 -     0x7fff8db61ff7  com.apple.RemoteViewServices (2.0 - 94) <3F34D630-3DDB-3411-BC28-A56A9B55EBDA> /System/Library/PrivateFrameworks/RemoteViewServices.framework/Versions/A/RemoteViewServices
    0x7fff8db62000 -     0x7fff8dbb0fff  libcorecrypto.dylib (161.1) <F3973C28-14B6-3006-BB2B-00DD7F09ABC7> /usr/lib/system/libcorecrypto.dylib
    0x7fff8dc14000 -     0x7fff8dc16ff7  com.apple.securityhi (9.0 - 55005) <405E2BC6-2B6F-3B6B-B48E-2FD39214F052> /System/Library/Frameworks/Carbon.framework/Versions/A/Frameworks/SecurityHI.framework/Versions/A/SecurityHI
    0x7fff8dc17000 -     0x7fff8dc30ff7  com.apple.Ubiquity (1.3 - 289) <C7F1B734-CE81-334D-BE41-8B20D95A1F9B> /System/Library/PrivateFrameworks/Ubiquity.framework/Versions/A/Ubiquity
    0x7fff8dc31000 -     0x7fff8dc41fff  libbsm.0.dylib (33) <2CAC00A2-1352-302A-88FA-C567D4D69179> /usr/lib/libbsm.0.dylib
    0x7fff8dcc0000 -     0x7fff8dcf5ffc  com.apple.LDAPFramework (2.4.28 - 194.5) <7E31A674-C6AB-33BE-BD5E-F5E3C6E22894> /System/Library/Frameworks/LDAP.framework/Versions/A/LDAP
    0x7fff8dcf6000 -     0x7fff8dcfbff7  libunwind.dylib (35.3) <78DCC358-2FC1-302E-B395-0155B47CB547> /usr/lib/system/libunwind.dylib
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    0x7fff9810d000 -     0x7fff98159ffe  com.apple.CoreMediaIO (401.0 - 4544) <44EBC0FE-DAD5-3711-96CB-05250F350A16> /System/Library/Frameworks/CoreMediaIO.framework/Versions/A/CoreMediaIO
    0x7fff9819a000 -     0x7fff982cfffa  com.apple.WebKit (9537 - 9537.71) <8A07478D-B2CA-3724-81E4-ADC10E1AD3EA> /System/Library/Frameworks/WebKit.framework/Versions/A/WebKit
    0x7fff982d0000 -     0x7fff982d1ff7  libsystem_sandbox.dylib (278.10) <A47E7E11-3C76-318E-B67D-98972B86F094> /usr/lib/system/libsystem_sandbox.dylib
Sample analysis of process 716 written to file /dev/stdout

Edited by urandom
Posted

 

Sure, I'm trying to attach the file

 

Hmm yep, this is in NSFileManager and during checking if that folder still exists. It shouldn't be that slow (unless, i guess, it still believes that volume to exist).

 

I don't want to add the complexity of checking if things exist on a separate thread as this would lead to a whole heap of other

 complications, and this is the first time I've heard this being an issue.

 

I'll have a think about the most simple way to work around this as it's definitely a very specific case and perhaps a bug or issue in NSFileManager.

Posted

Im not really familiar with osx programming, but should'nt you be able to detect if this is a network volume?

Maybe something like this: https://github.com/adobe/brackets-shell/commit/e31d1fb0e519873694638e9c34490db07eb23239

They use NSURL to detect if a file exists.

 

Right now I cant debug the issue because I'm at home and I cant reproduce it even with unplugging my network.

I would have thought that doing a stat /net/host/path in the shell would also lead to a hanging stat command.

Maybe I have some strange routes in my office.

Posted

Im not really familiar with osx programming, but should'nt you be able to detect if this is a network volume?

Maybe something like this: https://github.com/adobe/brackets-shell/commit/e31d1fb0e519873694638e9c34490db07eb23239

They use NSURL to detect if a file exists.

 

Right now I cant debug the issue because I'm at home and I cant reproduce it even with unplugging my network.

I would have thought that doing a stat /net/host/path in the shell would also lead to a hanging stat command.

Maybe I have some strange routes in my office.

 

In that code example, they still check if the path exists first with NSFileManager, which should return instantly if the path doesn't exist.

 

I'll have a think about this.

Posted

In that code example, they still check if the path exists first with NSFileManager, which should return instantly if the path doesn't exist.

 

Actually the NSFileManager code is removed in that commit (thus its red) and replaced by the (green) NSURL code.

 

I now know how to reproduce the issue.

 

You need to have autofs enabled. I'm not really sure if thats on by default on osx.

You need to have a host in your /etc/hosts file which is currently unavailable. E.g 

cat /etc/hosts | grep honk
10.66.6.2 honk

Then this should take a bit until it timeouts

stat /net/honk/opt/media0   

The second time you run it, it returnes immediately.

After a while, auto_fs tries to reach host honk again and it timeouts again.

 

Actually, I dont think NSFileManager:fileExistsAtPath returns true in this case.

Maybe it raises an exception?!

If it returns true, it's clearly a bug in NSFileManager.

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