OS X Yosemite Safari memory usage

Question

Safari's memory usage under Yosemite continues to increase until system stalls due to paging. The memory gets to about 60G before the stall. Also, the process SafariDAVclient exhibits the same behavior. This started after I reinstalled Yosemite. Reinstalled again, no better.
Anyone have a solution?
IMAC
12G 1333 MHz DDR3
Inter Core I5

Answer 1

Start time: 18:40:57 12/14/14
Model Identifier: iMac12,2
System Version: OS X 10.10.1 (14B25)
Kernel Version: Darwin 14.0.0
Time since boot: 5 minutes
SATA
   ST31000528AS                           
USB
   UC-10KM V1.3.124 (ATEN International Co. Ltd.)
   IEEE-1284 Controller (Prolific Technology, Inc.)
Diagnostic reports
   2014-12-08 Norton AntiVirus crash
   2014-12-08 Norton Internet Security crash
Shutdowns
   Dec 12 15:34:53 Previous shutdown cause: -62
   Dec 12 16:34:52 Previous shutdown cause: -62
   Dec 13 02:40:04 Previous shutdown cause: -62
   Dec 13 11:35:09 Previous shutdown cause: -62
   Dec 14 18:36:37 Previous shutdown cause: -62
Log
   Dec 14 05:36:19 com.symantec.errorreporting.periodic: Service exited with abnormal code: 70
   Dec 14 05:38:34 com.symantec.errorreporting.periodic-agent: Service exited with abnormal code: 70
   Dec 14 07:36:20 com.symantec.errorreporting.periodic: Service exited with abnormal code: 70
   Dec 14 07:38:39 com.symantec.errorreporting.periodic-agent: Service exited with abnormal code: 70
   Dec 14 09:36:58 com.symantec.errorreporting.periodic: Service exited with abnormal code: 70
   Dec 14 09:38:27 com.symantec.errorreporting.periodic-agent: Service exited with abnormal code: 70
   Dec 14 10:45:35 firefox (map: 0xffffff8046cfb000) triggered DYLD shared region unnest for map: 0xffffff8046cfb000, region 0x7fff89600000->0x7fff89800000. While not abnormal for debuggers, this increases system memory footprint until the target exits.
   Dec 14 11:09:09 process com.apple.WebKit[3678] thread 910877 caught burning CPU!; EXC_RESOURCE supressed due to audio playback
   Dec 14 11:35:53 com.symantec.errorreporting.periodic: Service exited with abnormal code: 70
   Dec 14 11:38:36 com.symantec.errorreporting.periodic-agent: Service exited with abnormal code: 70
   Dec 14 13:12:12 firefox (map: 0xffffff8051eab690) triggered DYLD shared region unnest for map: 0xffffff8051eab690, region 0x7fff89600000->0x7fff89800000. While not abnormal for debuggers, this increases system memory footprint until the target exits.
   Dec 14 13:39:50 com.symantec.errorreporting.periodic: Service exited with abnormal code: 70
   Dec 14 13:41:29 com.symantec.errorreporting.periodic-agent: Service exited with abnormal code: 70
   Dec 14 15:18:00 firefox (map: 0xffffff8051826000) triggered DYLD shared region unnest for map: 0xffffff8051826000, region 0x7fff89600000->0x7fff89800000. While not abnormal for debuggers, this increases system memory footprint until the target exits.
   Dec 14 15:35:46 com.symantec.errorreporting.periodic: Service exited with abnormal code: 70
   Dec 14 15:38:35 com.symantec.errorreporting.periodic-agent: Service exited with abnormal code: 70
   Dec 14 17:42:52 com.symantec.errorreporting.periodic-agent: Service exited with abnormal code: 70
   Dec 14 17:44:01 com.symantec.errorreporting.periodic: Service exited with abnormal code: 70
   Dec 14 18:36:37 Error 2 registering socket filter (com.symantec.fw.ac.at). Your computer may not be fully protected.
   Dec 14 18:36:37 com.apple.Kerberos.kdc: Service exited with abnormal code: 1
   Dec 14 18:36:37 ** GPU Hardware VM is disabled (multispace: disabled, page table updates with DMA: disabled)
   Dec 14 18:36:54 com.apple.dpd: Service exited with abnormal code: 75
   Dec 14 18:37:05 com.apple.dpd: Service exited with abnormal code: 75
   Dec 14 18:37:21 firefox (map: 0xffffff8049a89c30) triggered DYLD shared region unnest for map: 0xffffff8049a89c30, region 0x7fff86c00000->0x7fff86e00000. While not abnormal for debuggers, this increases system memory footprint until the target exits.
   Dec 14 18:40:13 com.symantec.errorreporting.periodic-agent: Service exited with abnormal code: 70
Activity
   CPU: user 13%, system 38%
CPU per process: SafariDAVClient (UID 501) is using 97  %
Memory: Safari (UID 501) is using 1753 MB
kexts
   com.symantec.kext.internetSecurity (5.4f4)
   com.symantec.kext.pf (5.7.1f4)
   com.symantec.kext.ips (3.9.2f1)
   com.symantec.kext.SymAPComm (12.7.1f4)
   com.symantec.kext.fw (5.3.1f4)
Daemons
   com.period.searchprotectd
   com.carbonite.daemon
   com.symantec.liveupdate.daemon
   com.apple.installer.osmessagetracing
   com.microsoft.office.licensing.helper
   com.symantec.errorreporting.periodic
   com.oracle.java.Helper-Tool
   com.symantec.symdaemon
   com.symantec.sharedsettings
   com.adobe.fpsaud
   com.symantec.liveupdate.daemon.ondemand
   com.symantec.deepsight-extractor
Agents
   com.symantec.uiagent.application
   com.carbonite.carbonitestatus
   com.symantec.nis.application
   com.oracle.java.Java-Updater
   com.apple.AirPortBaseStationAgent
   com.carbonite.carbonitealerts
   com.symantec.errorreporting.periodic-agent
Bundles
   /Library/Extensions/FileSecurity.kext
   -    com.symantec.kext.filesecurity
   /Library/Extensions/SymAPComm.kext
   -    com.symantec.kext.SymAPComm
   /Library/Extensions/SymFirewall.kext
   -    com.symantec.kext.fw
   /Library/Extensions/SymInternetSecurity.kext
   -    com.symantec.kext.internetSecurity
   /Library/Extensions/SymIPS.kext
   -    com.symantec.kext.ips
   /Library/Extensions/SymPersonalFirewall.kext
   -    com.symantec.kext.pf
   /Library/Internet Plug-Ins/Flash Player.plugin
   -    N/A
   /Library/Internet Plug-Ins/JavaAppletPlugin.plugin
   -    com.oracle.java.JavaAppletPlugin
   /Library/Internet Plug-Ins/NortonInternetSecurityBF.plugin
   -    com.symantec.NortonInternetSecurityBF
   /Library/Internet Plug-Ins/SharePointBrowserPlugin.plugin
   -    com.microsoft.sharepoint.browserplugin
   /Library/Internet Plug-Ins/SharePointWebKitPlugin.webplugin
   -    com.microsoft.sharepoint.webkitplugin
   /Library/PreferencePanes/Carbonite.prefPane
   -    com.carbonite.prefpanel
   /Library/PreferencePanes/Flash Player.prefPane
   -    com.adobe.flashplayerpreferences
   /Library/PreferencePanes/JavaControlPanel.prefPane
   -    com.oracle.java.JavaControlPanel
   /Library/PreferencePanes/SymantecQuickMenu.prefPane
   -    com.symantec.quickmenu.prefpane
   Library/Address Book Plug-Ins/SkypeABDialer.bundle
   -    com.skype.skypeabdialer
   Library/Address Book Plug-Ins/SkypeABSMS.bundle
   -    com.skype.skypeabsms
   Library/Internet Plug-Ins/TroviNPAPIPlugin.plugin
   -    com.conduit.ConduitNPAPIPlugin
Contents of /Library/LaunchAgents/com.carbonite.launchd.carbonitealerts.plist (checksum 3096452879)
   <?xml version="1.0" encoding="UTF-8"?>
   <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
   <plist version="1.0">
   <dict>
       <key>Disabled</key>
       <false/>
       <key>Label</key>
       <string>com.carbonite.carbonitealerts</string>
       <key>OnDemand</key>
       <true/>
       <key>RunAtLoad</key>
       <false/>
       <key>WatchPaths</key>
       <array>
           <string>/Library/Application Support/Carbonite/CarboniteAlerts.app/Contents/Resources/</string>
       </array>
       <key>ProgramArguments</key>
       <array>
           <string>/Library/Application Support/Carbonite/CarboniteAlerts.app/Contents/MacOS/CarboniteAlerts</string>
       </array>
   </dict>
   </plist>
Contents of /Library/LaunchAgents/com.carbonite.launchd.carbonitestatus.plist (checksum 2411194237)
   <?xml version="1.0" encoding="UTF-8"?>
   <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
   <plist version="1.0">
   <dict>
       <key>Disabled</key>
       <false/>
       <key>Label</key>
       <string>com.carbonite.carbonitestatus</string>
       <key>ProgramArguments</key>
       <array>
           <string>/Library/Application Support/Carbonite/CarboniteStatus.app/Contents/MacOS/CarboniteStatus</string>
       </array>
       <key>RunAtLoad</key>
       <true/>
       <key>OnDemand</key>
       <false/>
   </dict>
   </plist>
Contents of /Library/LaunchAgents/com.oracle.java.Java-Updater.plist (checksum 2888270030)
   <?xml version="1.0" encoding="UTF-8"?>
   <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
   <plist version="1.0">
   <dict>
       <key>Label</key>
       <string>com.oracle.java.Java-Updater</string>
       <key>ProgramArguments</key>
       <array>
           <string>/Library/Internet Plug-Ins/JavaAppletPlugin.plugin/Contents/Resources/Java Updater.app/Contents/MacOS/Java Updater</string>
           <string>-bgcheck</string>
       </array>
       <key>StandardErrorPath</key>
       <string>/dev/null</string>
       <key>StandardOutPath</key>
       <string>/dev/null</string>
       <key>StartCalendarInterval</key>
       <dict>
           <key>Hour</key>
           <integer>14</integer>
           <key>Minute</key>
           <integer>2</integer>
           <key>Weekday</key>
           <integer>1</integer>
       </dict>
   </dict>
   ...and 1 more line(s)
Contents of /Library/LaunchAgents/com.symantec.errorreporter-periodicagent.plist (checksum 3538970707)
   <?xml version="1.0" encoding="UTF-8"?>
   <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
   <plist version="1.0">
   <dict>
       <key>Disabled</key>
       <false/>
       <key>Label</key>
       <string>com.symantec.errorreporting.periodic-agent</string>
       <key>Nice</key>
       <integer>10</integer>
       <key>LowPriorityIO</key>
       <true/>
       <key>RunAtLoad</key>
       <true/>
       <key>StartInterval</key>
       <integer>86400</integer>
       <key>StartCalendarInterval</key>
       <array>
           <dict>
               <key>Minute</key>
               <integer>48</integer>
               <key>Hour</key>
               <integer>16</integer>
               <key>Weekday</key>
               <integer>2</integer>
   ...and 28 more line(s)
Contents of /Library/LaunchAgents/com.symantec.nis.application.plist (checksum 4000086316)
   <?xml version="1.0" encoding="UTF-8"?>
   <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
   <plist version="1.0">
   <dict>
       <key>Label</key>
       <string>com.symantec.nis.application</string>
       <key>RunAtLoad</key>
       <false/>
       <key>QueueDirectories</key>
       <array>
           <string>/Library/Application Support/Symantec/NisLaunch</string>
       </array>
       <key>ProgramArguments</key>
       <array>
           <string>/Applications/Symantec Solutions/Norton Internet Security.app/Contents/MacOS/Norton Internet Security</string>
       </array>
   </dict>
   </plist>
Contents of /Library/LaunchAgents/com.symantec.uiagent.application.plist (checksum 2715641560)
   <?xml version="1.0" encoding="UTF-8"?>
   <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
   <plist version="1.0">
   <dict>
       <key>KeepAlive</key>
       <true/>
       <key>Label</key>
       <string>com.symantec.uiagent.application</string>
       <key>ProgramArguments</key>
       <array>
           <string>/Library/Application Support/Symantec/SymUIAgent/SymUIAgent.app/Contents/MacOS/SymUIAgent</string>
       </array>
       <key>RunAtLoad</key>
       <true/>
   </dict>
   </plist>
Contents of /Library/LaunchDaemons/com.carbonite.launchd.carbonitedaemon.plist (checksum 2948711974)
   <?xml version="1.0" encoding="UTF-8"?>
   <!DOCTYPE plist PUBLIC "-//Apple Computer//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
   <plist version="1.0">
   <dict>
       <key>Label</key>
       <string>com.carbonite.daemon</string>
       <key>ProgramArguments</key>
       <array>
           <string>/Library/Application Support/Carbonite/CarboniteDaemon.app/Contents/MacOS/CarboniteDaemon</string>
       </array>
       <key>RunAtLoad</key>
       <true/>
       <key>OnDemand</key>
       <false/>
       <key>WorkingDirectory</key>
       <string>/Library/Application Support/Carbonite</string>
       <key>StandardOutPath</key>
       <string>/Library/Logs/Carbonite1.log</string>
       <key>StandardErrorPath</key>
       <string>/Library/Logs/Carbonite2.log</string>
   </dict>
   </plist>
Contents of /Library/LaunchDaemons/com.perion.searchprotectd.plist (checksum 1209345832)
   <?xml version="1.0" encoding="UTF-8"?>
   <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
   <plist version="1.0">
   <dict>
       <key>AbandonProcessGroup</key>
       <true/>
       <key>EnableTransactions</key>
       <false/>
       <key>ProgramArguments</key>
       <array>
           <string>/Applications/SearchProtect/SearchProtect.app/Contents/MacOS/SearchProt ect</string>
           <string>-execv_instance</string>
       </array>
       <key>KeepAlive</key>
       <true/>
       <key>RunAtLoad</key>
       <true/>
       <key>Label</key>
       <string>com.period.searchprotectd</string>
   </dict>
   </plist>
Contents of /Library/LaunchDaemons/com.symantec.deepsight-extractor.plist (checksum 27990138)
   <?xml version="1.0" encoding="UTF-8"?>
   <!DOCTYPE plist PUBLIC "-//Apple Computer//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
   <plist version="1.0">
   <dict>
       <key>Disabled</key>
       <true/>
       <key>Label</key>
       <string>com.symantec.deepsight-extractor</string>
       <key>OnDemand</key>
       <true/>
       <key>KeepAlive</key>
       <dict>
           <key>NetworkState</key>
           <true/>
       </dict>
       <key>RunAtLoad</key>
       <true/>
       <key>LowPriorityIO</key>
       <true/>
       <key>Nice</key>
       <integer>10</integer>
       <key>StandardOutPath</key>
       <string>/dev/null</string>
       <key>StandardErrorPath</key>
       <string>/Library/Application Support/Symantec/DeepSight/errors.log</string>
   ...and 13 more line(s)
Contents of /Library/LaunchDaemons/com.symantec.errorreporter-periodic.plist (checksum 4116421858)
   <?xml version="1.0" encoding="UTF-8"?>
   <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
   <plist version="1.0">
   <dict>
       <key>Disabled</key>
       <false/>
       <key>Label</key>
       <string>com.symantec.errorreporting.periodic</string>
       <key>Nice</key>
       <integer>10</integer>
       <key>LowPriorityIO</key>
       <true/>
       <key>RunAtLoad</key>
       <false/>
       <key>StartInterval</key>
       <integer>43200</integer>
       <key>StartCalendarInterval</key>
       <array>
           <dict>
               <key>Minute</key>
               <integer>48</integer>
               <key>Hour</key>
               <integer>12</integer>
               <key>Weekday</key>
               <integer>2</integer>
   ...and 30 more line(s)
Contents of /Library/LaunchDaemons/com.symantec.liveupdate.daemon.ondemand.plist (checksum 2394746304)
   <?xml version="1.0" encoding="UTF-8"?>
   <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
   <plist version="1.0">
   <dict>
       <key>KeepAlive</key>
       <false/>
       <key>Label</key>
       <string>com.symantec.liveupdate.daemon.ondemand</string>
       <key>ProgramArguments</key>
       <array>
           <string>/Library/Application Support/Symantec/LiveUpdate/LiveUpdateDaemon.bundle/Contents/MacOS/LiveUpdateDa emon</string>
       </array>
       <key>TimeOut</key>
       <integer>15</integer>
       <key>Sockets</key>
       <dict>
           <key>DaemonSocket</key>
           <dict>
               <key>SockPathMode</key>
               <integer>49663</integer>
               <key>SockPathName</key>
               <string>/private/tmp/com.symantec.liveupdate.daemonport</string>
           </dict>
       </dict>
       <key>EnableTransactions</key>
   ...and 3 more line(s)
Contents of /Library/LaunchDaemons/com.symantec.liveupdate.daemon.plist (checksum 4073930787)
   <?xml version="1.0" encoding="UTF-8"?>
   <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
   <plist version="1.0">
   <dict>
       <key>KeepAlive</key>
       <false/>
       <key>RunAtLoad</key>
       <true/>
       <key>Label</key>
       <string>com.symantec.liveupdate.daemon</string>
       <key>ProgramArguments</key>
       <array>
           <string>/Library/Application Support/Symantec/LiveUpdate/LUTool</string>
       </array>
       <key>StartInterval</key>
       <integer>7200</integer>
       <key>TimeOut</key>
       <integer>15</integer>
   </dict>
   </plist>
Contents of /Library/LaunchDaemons/com.symantec.nav.migrateqtf.plist (checksum 1567806071)
   <?xml version="1.0" encoding="UTF-8"?>
   <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
   <plist version="1.0">
   <dict>
           <key>KeepAlive</key>
           <false/>
           <key>RunAtLoad</key>
           <true/>
           <key>Label</key>
           <string>com.symantec.nav.migrateqtf</string>
           <key>ProgramArguments</key>
           <array>
                   <string>/usr/bin/MigrateQTF</string>
           </array>
           <key>StartInterval</key>
           <integer>300</integer>
           <key>TimeOut</key>
           <integer>15</integer>
   </dict>
   </plist>
Contents of /Library/LaunchDaemons/com.symantec.sharedsettings.plist (checksum 2142494329)
   <?xml version="1.0" encoding="UTF-8"?>
   <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
   <plist version="1.0">
   <dict>
       <key>KeepAlive</key>
       <false/>
       <key>Label</key>
       <string>com.symantec.sharedsettings</string>
       <key>MachServices</key>
       <dict>
           <key>com.symantec.sharedsettings</key>
           <true/>
       </dict>
       <key>Program</key>
       <string>/Library/PrivateFrameworks/SymSharedSettings.framework/Tools/SymSharedS ettingsd</string>
   </dict>
   </plist>
Contents of /Library/LaunchDaemons/com.symantec.symdaemon.plist (checksum 513030552)
   <?xml version="1.0" encoding="UTF-8"?>
   <!DOCTYPE plist PUBLIC "-//Apple Computer//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
   <plist version="1.0">
   <dict>
       <key>Label</key>
       <string>com.symantec.symdaemon</string>
       <key>OnDemand</key>
       <false/>
       <key>KeepAlive</key>
       <dict>
           <key>SuccessfulExit</key>
           <false/>
       </dict>
       <key>RunAtLoad</key>
       <true/>
       <key>ProgramArguments</key>
       <array>
           <string>/Library/Application Support/Symantec/Daemon/SymDaemon.bundle/Contents/MacOS/SymDaemon</string>
       </array>
   </dict>
   </plist>
Listeners
   cupsd: ipp
   kdc: kerberos
   launchd: afpovertcp
   launchd: microsoft-ds
User login items
   VMware Fusion Start Menu
   -    /Applications/VMware Fusion.app/Contents/Library/VMware Fusion Start Menu.app
Restricted files: 406
Elapsed time (s): 207