This is not to say they were not occurring earlier, but I did not notice them if they were. In the console I know see messages like:
5/24/15 6:58:24.335 PM Dock[247]: LSOpenFromURLSpec(file:///Applications/Safari.app/) failed with -10699
5/24/15 6:58:41.664 PM com.apple.xpc.launchd[1]: (com.apple.imfoundation.IMRemoteURLConnectionAgent) The _DirtyJetsamMemoryLimit key is not available on this platform.
5/24/15 6:58:43.272 PM QuickLookSatellite[432]: Failed to obtain sandbox extension for path=/Users/jcsmith/Library/Caches/com.apple.quicklook.satellite. Errno:1
5/24/15 6:58:43.568 PM QuickLookSatellite[432]: Failed to obtain sandbox extension for path=/Users/jcsmith/Library/Caches/com.apple.quicklook.satellite. Errno:1
5/24/15 6:58:44.592 PM com.apple.xpc.launchd[1]: (com.apple.quicklook.satellite.DB4FA531-D4E8-42DC-A91E-950B3BB4E97A[432]) Service exited due to signal: Killed: 9
5/24/15 6:58:47.258 PM sandboxd[313]: ([432]) QuickLookSatelli(432) deny file-issue-extension /Users/jcsmith/Library/Caches/com.apple.quicklook.satellite
5/24/15 6:58:47.439 PM sandboxd[313]: ([432]) QuickLookSatelli(432) deny mach-lookup com.apple.nsurlstorage-cache
5/24/15 6:58:47.486 PM sandboxd[313]: ([432]) QuickLookSatelli(432) deny file-issue-extension /Users/jcsmith/Library/Caches/com.apple.quicklook.satellite
5/24/15 6:58:47.639 PM sandboxd[313]: ([432]) QuickLookSatelli(432) deny mach-lookup com.apple.nsurlstorage-cache
The lines about the QuickLookSatelli(432) deny - all have the ability to view a full report. I am including the full report from the first of those messages below:
QuickLookSatelli(432) deny file-issue-extension /Users/jcsmith/Library/Caches/com.apple.quicklook.satellite
Process: QuickLookSatelli [432]
Path: /System/Library/Frameworks/QuickLook.framework/Versions/A/Resources/quicklookd. app/Contents/XPCServices/QuickLookSatellite.xpc/Contents/MacOS/QuickLookSatellit e
Load Address: 0x10c0fb000
Identifier: com.apple.quicklook.satellite
Version: 521.1 (5.0)
Build Info: 1-QuickLook_executables~675042000000000
Code Type: x86_64 (Native)
Parent Process: launchd [1]
Date/Time: 2015-05-24 18:58:43.513 -0400
OS Version: Mac OS X 10.10.3 (14D136)
Report Version: 8
Thread 0:
0 libsystem_kernel.dylib 0x000000011191ee92 __mac_syscall + 10
1 CFNetwork 0x00000001111e6b66 GetSandboxFileExtensionForPath(char const*) + 38
2 CFNetwork 0x00000001111e6756 __CFURLCache::createNSURLStorageClient(__CFString const*, long, __CFURLCache*) + 190
3 CFNetwork 0x00000001111e7484 __CFURLCache::SetDiskCapacity(long) + 172
4 CFNetwork 0x00000001111e5638 -[NSURLCache initWithMemoryCapacity:diskCapacity:diskPath:] + 268
5 CFNetwork 0x00000001111e5440 +[NSURLCache sharedURLCache] + 106
6 WebKitLegacy 0x000000011cd2a2ca cfURLCache + 31
7 WebKitLegacy 0x000000011cd2a299 WKCopyFoundationCacheDirectory + 9
8 WebKitLegacy 0x000000011cd29d70 +[WebView(WebFileInternal) _setCacheModel:] + 48
9 CoreFoundation 0x000000010cba045c __CFNOTIFICATIONCENTER_IS_CALLING_OUT_TO_AN_OBSERVER__ + 12
10 CoreFoundation 0x000000010ca90634 _CFXNotificationPost + 3140
11 Foundation 0x000000010c2179d1 -[NSNotificationCenter postNotificationName:object:userInfo:] + 66
12 WebKitLegacy 0x000000011cd25f31 -[WebPreferences initWithIdentifier:] + 465
13 Web 0x00000001158dd981
14 libobjc.A.dylib 0x000000010c79f1b5 _class_initialize + 649
15 libobjc.A.dylib 0x000000010c7af777 lookUpImpOrForward + 322
16 libobjc.A.dylib 0x000000010c7991ac objc_msgSend + 236
17 Foundation 0x000000010c25f531 -[NSBundle loadAndReturnError:] + 693
18 QuickLookUI 0x0000000117434196 -[QLDisplayBundleLoader loadDisplayBundle:] + 102
19 QuickLookUI 0x00000001174342fb -[QLDisplayBundleLoader displayBundleClassForDisplayBundleID:] + 82
20 QuickLookUI 0x000000011743452f _QLThumbnailRequestSetThumbnailWithDataRepresentation + 100
21 QuickLook 0x000000010c1807a2 QLThumbnailRequestSetThumbnailWithDataRepresentation + 444
22 Office 0x00000001159f9a23 GenerateThumbnailForURL + 560
23 QuickLook 0x000000010c17ef57 _QLThumbnailRequestCallGenerator + 566
24 QuickLookSatellite 0x000000010c0fe1f8
25 QuickLookSatellite 0x000000010c0ff662
26 QuickLookSatellite 0x000000010c0fdf49
27 QuickLook 0x000000010c17cb4e ___QLGeneratorDispatchBlock_block_invoke_2 + 16
28 QuickLook 0x000000010c1b6721 QLTryCatchAndCrash(void () block_pointer) + 17
29 libdispatch.dylib 0x00000001116f1323 _dispatch_call_block_and_release + 12
30 libdispatch.dylib 0x00000001116ecc13 _dispatch_client_callout + 8
31 libdispatch.dylib 0x00000001116f8cbf _dispatch_main_queue_callback_4CF + 861
32 CoreFoundation 0x000000010cb373f9 __CFRUNLOOP_IS_SERVICING_THE_MAIN_DISPATCH_QUEUE__ + 9
33 CoreFoundation 0x000000010caf268f __CFRunLoopRun + 2159
34 CoreFoundation 0x000000010caf1bd8 CFRunLoopRunSpecific + 296
35 CoreFoundation 0x000000010cba9671 CFRunLoopRun + 97
36 XPCService 0x000000010c1565c0 xpc_service_main + 413
37 libdyld.dylib 0x00000001117425c9 start + 1
Binary Images:
0x10c0fb000 - 0x10c101fff com.apple.quicklook.satellite (5.0 - 521.1) <0902845e-9165-3112-a76a-2061cadf5376> /System/Library/Frameworks/QuickLook.framework/Versions/A/Resources/quicklookd. app/Contents/XPCServices/QuickLookSatellite.xpc/Contents/MacOS/QuickLookSatellit e
0x10c155000 - 0x10c15bff7 com.apple.XPCService (2.0 - 1) <aa4a5393-1f5d-3465-a417-0414b95dc052> /System/Library/PrivateFrameworks/XPCService.framework/Versions/A/XPCService
0x10c16e000 - 0x10c1cbfff com.apple.QuickLookFramework (5.0 - 675.42) <a9b7668d-60ef-35b2-9acb-0e68de335b15> /System/Library/Frameworks/QuickLook.framework/Versions/A/QuickLook
0x10c210000 - 0x10c541fff com.apple.Foundation (6.9 - 1153.20) <f0ff3a5d-c5b7-34a1-9319-de1ef928e58e> /System/Library/Frameworks/Foundation.framework/Versions/C/Foundation
0x10c798000 - 0x10c99246f libobjc.A.dylib (647) <759e155d-bc42-3d4e-869b-6f57d477177c> /usr/lib/libobjc.A.dylib
0x10ca80000 - 0x10ce18ff7 com.apple.CoreFoundation (6.9 - 1153.18) <5c0892b8-9691-341f-9279-ca3a74d59aa0> /System/Library/Frameworks/CoreFoundation.framework/Versions/A/CoreFoundation
0x1111e4000 - 0x1113f1ff3 com.apple.CFNetwork (720.3.13 - 720.3.13) <69e15385-5784-3912-88f6-03b16f1c1a5c> /System/Library/Frameworks/CFNetwork.framework/Versions/A/CFNetwork
0x1116eb000 - 0x111715ff7 libdispatch.dylib (442.1.4) <502cf32b-669b-3709-8862-08188225e4f0> /usr/lib/system/libdispatch.dylib
0x11173f000 - 0x111742ff7 libdyld.dylib (353.2.1) <9eacca38-291d-38cc-811f-7e9d1451e2d3> /usr/lib/system/libdyld.dylib
0x111909000 - 0x111926fff libsystem_kernel.dylib (2782.20.48) <eafd7bd0-0c30-3e7d-9528-f9916ba0167c> /usr/lib/system/libsystem_kernel.dylib
0x1158d7000 - 0x1158f2fff com.apple.qldisplay.Web (5.0 - 675.42) <f18d7293-e624-3817-bebc-f9a8857025c6> /System/Library/Frameworks/Quartz.framework/Versions/A/Frameworks/QuickLookUI.f ramework/Versions/A/PlugIns/Web.qldisplay/Contents/MacOS/Web
0x1159f8000 - 0x1159fafff com.apple.qlgenerator.office (4.0 - 32) <caaf3c34-15d2-3254-98e2-75ed6c230885> /System/Library/QuickLook/Office.qlgenerator/Contents/MacOS/Office
0x1173e6000 - 0x1174d0ff7 com.apple.QuickLookUIFramework (5.0 - 675.42) <86ee3d40-4554-3813-8c8b-b583a5f6f7e3> /System/Library/Frameworks/Quartz.framework/Versions/A/Frameworks/QuickLookUI.f ramework/Versions/A/QuickLookUI
0x11cd23000 - 0x11ce6affb com.apple.WebKitLegacy (10600 - 10600.5.17) <b44aa3ed-cf33-3f14-9a57-06a10c653ef5> /System/Library/Frameworks/WebKit.framework/Versions/A/Frameworks/WebKitLegacy. framework/Versions/A/WebKitLegacy
Thanks.