<table><tr><th>From:</th><th>jeevacation@gmail.com</th></tr><tr><td>Sent:</td><td>Wednesday, April 8, 2015 11A7 AM</td></tr><tr><td>Subject:</td><td>Date/Time: 2015-04-0807:43:31 -0400</td></tr></table>

Date/Time: 2015-04-08 =7:43:31 -0400
OS Version: 10.10.2 (Build =4C109)
Architecture: x86_64h
Report =ersion: 21

Command: =nbsp; Firefox
Path: =nbsp;/Applications/Firefox.app/Contents/MacOS/firefox
Version: =nbsp; 37.0.1 (3715.4.2)
Parent: =nbsp; launchd [1]
PID: =nbsp; 43032

Event: =nbsp; hang Duration: =nbsp; 1.70s (process was unresponsive for 29 seconds before =ampling) Steps: 18 (100ms =ampling interval)

Hardware model: =nbsp;iMac15,1
Active cpus: =

Fan speed: 1198 =pm

Timeline format: stacks are sorted =hronologically Use -i and -heavy to re-report with count =orting =div>

Heaviest stack for the main thread of the target =rocess: 18 ??? =<65089470-2121-3976-A28C-971F1EE096A0> + 2103673) =0x100701979] 18 _psynch_cvwait + 10 =libsystem_kernel.dylib + 90422) [0x7fff8f3b1136] '18 =nbsp;psynch_cvcontinue + 0 (pthread + 26908) =0xffffff7f80de291c]

Process: =nbsp; firefox (Firefox) [43032]
Path: =nbsp; =nbsp;/Applications/Firefox.app/Contents/MacOS/firefox
Architect=re: x86_64
Parent: =nbsp;launchd [1]
UID: =nbsp; 501
Task size: 188804 =ages
CPU Time: =nbsp;0.004s
Note: =nbsp;Unresponsive for 29 seconds before =ampling

Thread 0x50874d =ispatchQueue 1 18 samples (1-18) priority =7 <frontmost, thread QoS user interactive, boosted, =eceived importance donation from WindowServer [105],1O policy =mportant> 18 ??? =<65DB947D-2121-3976-A28C-971FlEE096A0> + 2103673) [0x100701979] =-18

18 _psynch_cvwait + 10 =libsystemkernel.dylib + 90422) [0x7fff8f3b1136] 1-18 =nbsp; *18 psynch_cvcontinue + 0 (pthread + 26908) =Oxffffff7f8Ode291c] 1-18

Thread =x50875d DispatchQueue 2 18 samples (1-18) =nbsp; priority 47 <frontmost, thread QoS user =nteractive, boosted, received importance donation from WindowServer =1051, 10 policy important>

18 =nbsp;_dispatch_mgr_thread + 52 (libdispatch.dylib + 19050) =0x7f1f94352a6a] 1-18 18 kevent64 + 10 =libsystem_kernel.dylib + 94770)10x7fff8f3b2232] 1-18 =nbsp; *18 ??? (kernel + 5988368)10xffffff80007b60101=-18

Thread 0x508760 18 =amples (1-18) priority 31 <frontmost, thread =oS legacy, boosted, received importance donation from WindowServer =1051, 10 policy important>

18 thread_start + =3 (libsystem_pthread.dylib + 5149) (0x7fff92fe541d1 =-18 18 _pthread_start + 176 =libsystem_pthread.dylib + 12773) [0x7fff92fe71e511-18 =nbsp; 18 ??? (<390A2BB0-CAA4-3FFD-B19B-ED15A8313953> = 31518289)10x10360ee511 1-18 18 =nbsp;mach_msg_trap + 10 (libsystem_kernel.dylib + 70878) =0x7fff8f3ac4de] 1-18 *18 =nbsp;ipc_mqueue_receive_continue + 0 (kernel + 1165472) =Oxffffff800031c8a0) 1-18

Thread =x508766 18 samples (1-18) priority =1 <frontmost, thread O05 legacy, boosted, received =mportance donation from WindowServer 11051, 10 policy =mportant>

18 kevent + 10 =libsystem_kernel.dylib + 94746)[0x7fff8f3b221a] 1-18 =nbsp;*18 ??? (kernel + 5988368) [Oxffffff80007b6010] =-18

Thread 0x50876a 18 =amples (1-18) priority 31 cpu time =.001s <frontmost, thread QoS legacy, boosted, =eceived importance donation from WindowServer 11051, 10 policy =mportant>

18 _select + 10 =libsystem_kernel.dylib + 91130)10x7fff8f3b13fa1 1-18 =nbsp;'18 ??? (kernel + 6142240) [Oxffffff80007db9201=-18

Thread 0x50876b 18 =amples (1-18) priority 31
<frontmost, thread =oS legacy, boosted, received importance donation from WindowServer =105], IO policy important>

18 ??? =<65089470-2121-3976-A28C-971F1EE096A0> + 2103527) (0x1007018e7J =-18 18 _psynch_cvwait + 10 =libsystem_kernel.dylib + 90422)10x7fff8f3b11361 1.18 =nbsp; *18 psynch_cvcontinue + 0 (pthread + 26908) =Oxffffff7f8Ode291c11-18

Thread =x50876c 18 samples (1-18) priority =1 <frontmost, thread QoS legacy, boosted, received =mportance donation from WindowServer 11051, 10 policy =mportant>

18 ??? =<65DB947D-2121-3976-A28C-971FlEE096A0> + 2103527) (0x1007018e7J =-18 18 _psynch_cvwait + 10 =libsystem_kernel.dylib + 913422) [0x7fff8f3b1136] 1-18 =nbsp; *18 psynch_cvcontinue + 0 (pthread + 26908) =Oxffffff7f8Ode291c] 1-18

Thread =x50876d 18 samples (1.18) priority =1 <frontmost, thread QoS legacy, boosted, received =mportance donation from WindowServer 11051, 10 policy =mportant>

18 ??? =<65089470.2121.3976-A28C-971F1EE096A0> + 2103527) (0x1007018e7J =-18 18 _psynch_cvwait + 10 =libsystem_kernel.dylib + 90422) [0x7fff8f3b11361 1-18 =nbsp; *18 psynch_cvcontinue + 0 (pthread + 26908) =Oxffffff7f8Ode291c) 1-18

<table><tr><th>Thread =x50876e 18 samples (1-18) priority=1
&lt;frontmost, thread QoS legacy, boosted, received =mportance donation from WindowServer [105], 10 policy
=mportant&gt;</th></tr><tr><td>18 ??? =&lt;65DB947D-2121-3976-A28C-971F1EE096A0&gt; +2103527) [0x1007018e7]=-18
18_psynch_cvwait + 10 =libsystem_kernel.dylib + 90422) [0x7fff8f3b1136] 1-18
nbsp; *18 psynch_cvcontinue + 0 (pthread + 26908) =0xffffff7f80de291c] 1-18</td></tr><tr><td>Thread =x50876f 18 samples (1-18) priority=1
&lt;frontmost, thread QoS legacy, boosted, received =mportance donation from WindowServer [105], 10 policy
=mportant&gt;</td></tr><tr><td>18 ??? &lt;65DB947D-2121-3976-A28C-971F1EE096A0&gt; +2103527) [0x1007018e7] =-18
18_psynch_cvwait + 10 =libsystem_kernel.dylib + 90422) [0x7fff8f3b1136] 1-18
=nbsp; *18 psynch_cvcontinue +0 (pthread + 26908)=0xffffff7f80de291c] 1-18</td></tr><tr><td>Thread =x508770 18 samples (1-18) priority=1
&lt;frontmost, thread QoS legacy, boosted, received =mportance donation from WindowServer [105], 10 policy
=mportant&gt;</td></tr><tr><td>18 ??? =&lt;65DB947D-2121-3976-A28C-971F1EE096A0&gt; +2103527) [0x1007018e7] =-18
18 _psynch_cvwait + 10 =libsystem_kernel.dylib + 90422) [0x7fff8f3b1136] 1-18
=nbsp; *18 psynch_cvcontinue + 0 (pthread + 26908)=0xffffff7f80de291c] 1-18</td></tr><tr><td>Thread =x508771 18 samples (1-18) priority=1
&lt;frontmost, thread QoS legacy, boosted, received =mportance donation from WindowServer [105], 10 policy
=mportant&gt;</td></tr><tr><td>18 ??? =&lt;65DB947D-2121-3976-A28C-971F1EE096A0&gt; +2103527) [0x1007018e7]=-18
18_psynch_cvwait + 10 =libsystem_kernel.dylib + 90422) [0x7fff8f3b1136] 1-18
=nbsp; *18 psynch_cvcontinue + 0 (pthread + 26908) =0xffffff7f80de291c] 1-18</td></tr><tr><td>Thread =x508772 18 samples (1-18) priority=1
&lt;frontmost, thread QoS legacy, boosted, received =mportance donation from WindowServer [105], 10 policy
=mportant&gt;</td></tr><tr><td>18 ??? =&lt;65DB947D-2121-3976-A28C-971F1EE096A0&gt; +2103527) [0x1007018e7]=-18
18_psynch_cvwait + 10 =libsystem_kernel.dylib + 90422) [0x7fff8f3b1136] 1-18
nbsp; *18 psynch_cvcontinue + 0 (pthread + 26908)=0xffffff7f80de291c] 1-18</td></tr><tr><td>Thread =x508773 18 samples (1-18) priority=1
&lt;frontmost, thread QoS legacy, boosted, received =mportance donation from WindowServer [105], 10 policy
=mportant&gt;</td></tr><tr><td>18 ???=&lt;65DB947D-2121-3976-A28C-971F1EE096A0&gt; +2103527) [0x1007018e7]=-18
18_psynch_cvwait + 10 =libsystem_kernel.dylib + 90422) [0x7fff8f3b1136] 1-18
nbsp; *18 psynch_cvcontinue +0 (pthread + 26908) =0xffffff7f80de291c] 1-18</td></tr><tr><td>Thread =x508774 18 samples (1-18) priority=1
&lt;frontmost, thread QoS legacy, boosted, received =mportance donation from WindowServer [105], 10 policy
=mportant&gt;</td></tr><tr><td>18 ??? =&lt;65DB947D-2121-3976-A28C-971F1EE096A0&gt; +2103527) [0x1007018e7]=-18
18_psynch_cvwait + 10 =libsystem_kernel.dylib + 90422) [0x7fff8f3b1136] 1-18
=nbsp; *18 psynch_cvcontinue + 0 (pthread + 26908) &lt;change&gt;&lt;s&gt;=0xffffff7f80de291c]&lt;/s&gt;&lt;/change&gt; 1-18</td></tr><tr><td>Thread =x508775 18 samples (1-18) priority=1
&lt;frontmost, thread QoS legacy, boosted, received =mportance donation from WindowServer [105], 10 policy
=mportant&gt;</td></tr></table>

<table><tr><th>18 ???=&lt;65DB947D-2121-3976-A28C-971F1EE096A0&gt; +2103527) [0x1007018e7]=-18
18_psynch_cvwait + 10 =libsystem_kernel.dylib + 90422) [0x7fff8f3b1136] 1-18
nbsp; *18 psynch_cvcontinue +0 (pthread + 26908) =0xffffff7f80de291c] 1-18</th></tr><tr><td>Thread =x508776 18 samples (1-18) priority=1
&lt;frontmost, thread QoS legacy, boosted, received =mportance donation from WindowServer [105], 10 policy
=mportant&gt;</td></tr><tr><td>18 ??? &lt;65DB947D-2121-3976-A28C-971F1EE096A0&gt; +2103527) [0x1007018e7]=-18
18_psynch_cvwait + 10 =libsystem_kernel.dylib + 90422) [0x7fff8f3b1136] 1-18
=nbsp; *18 psynch_cvcontinue +0 (pthread + 26908)=0xffffff7f80de291c] 1-18</td></tr><tr><td>Thread =x508777 18 samples (1-18) priority=1
&lt;frontmost, thread QoS legacy, boosted, received =mportance donation from WindowServer [105], 10 policy
=mportant&gt;</td></tr><tr><td>18 ??? =&lt;390A2BBO-CAA4-3FFD-B19B-ED15A8313953&gt;+36899438) [0x103b30a6e] =-18
18 mach_msg_trap + 10 =libsystem_kernel.dylib + 70878) [0x7fff8f3ac4de] 1-18
=nbsp; *18 ipc_mqueue_receive_continue +0 (kernel + =165472) [0xffffff800031c8a0] 1-18</td></tr><tr><td>=hread 0x508778 18 samples (1-18) priority=1
&lt;frontmost, thread QoS legacy, boosted, received =mportance donation from WindowServer [105], 10 policy
=mportant&gt;</td></tr><tr><td>18 ??? =&lt;65DB947D-2121-3976-A28C-971F1EE096A0&gt; +2103673) [0x100701979]=-18
18_psynch_cvwait + 10 =libsystem_kernel.dylib + 90422) [0x7fff8f3b1136] 1-18
=nbsp; *18 psynch_cvcontinue + 0 (pthread + 26908) =0xffffff7f80de291c] 1-18</td></tr><tr><td>Thread =x50877b 18 samples (1-18) priority=1
&lt;frontmost, thread QoS legacy, boosted, received =mportance donation from WindowServer [105], 10 policy
=mportant&gt;</td></tr><tr><td>18 ??? =&lt;65DB947D-2121-3976-A28C-971F1EE096A0&gt; +2103527) [0x1007018e7]=-18
18_psynch_cvwait + 10 =libsystem_kernel.dylib +90422) [0x7fff8f3b1136] 1-18
nbsp; *18 psynch_cvcontinue +0 (pthread + 26908) =0xffffff7f80de291c] 1-18</td></tr><tr><td>Thread =x508788 18 samples (1-18) priority=1
&lt;frontmost, thread QoS legacy, boosted, received =mportance donation from WindowServer [105], 10 policy
=mportant&gt;</td></tr><tr><td>18 ??? =&lt;65DB947D-2121-3976-A28C-971F1EE096A0&gt; +2103527) [0x1007018e7]=-18
18_psynch_cvwait + 10 =libsystem_kernel.dylib + 90422) [0x7fff8f3b1136] 1-18
=nbsp; *18 psynch_cvcontinue + 0 (pthread + 26908) =0xffffff7f80de291c] 1-18</td></tr><tr><td>Thread =x508789 18 samples (1-18) priority=1
&lt;frontmost, thread QoS legacy, boosted, received =mportance donation from WindowServer [105], 10 policy
=mportant&gt;</td></tr><tr><td>18 ??? =&lt;65DB947D-2121-3976-A28C-971F1EE096A0&gt; +2103673) [0x100701979]=-18
18 _psynch_cvwait + 10 =libsystem_kernel.dylib + 90422) [0x7fff8f3b1136] 1-18
=nbsp; *18 psynch_cvcontinue +0 (pthread + 26908)=0xffffff7f80de291c] 1-18</td></tr><tr><td>Thread =x50878a 18 samples (1-18) priority=1
&lt;frontmost, thread QoS legacy, boosted, received =mportance donation from WindowServer [105], 10 policy
=mportant&gt;</td></tr><tr><td>18 ??? =&lt;65DB947D-2121-3976-A28C-971F1EE096A0&gt; +2105340) [0x100701ffc] =-18
18_psynch_cvwait + 10 =libsystem_kernel.dylib +90422) [0x7fff8f3b1136] 1-18
nbsp; *18 psynch_cvcontinue +0 (pthread + 26908) =0xffffff7f80de291c] 1-18</td></tr></table>

Thread =x508795 18 samples (1-18) priority 47 =nbsp; cpu time 0.003s <frontmost, =hread QoS user interactive, boosted, received importance donation from =indowServer 11051, 10 policy important>

18 =nbsp;thread_start + 13 (libsystem_pthread.dylib + 5149) =0x7fff92fe541d) 1-18

18 _pthread_start + =76 (libsystem_pthread.dylib + 12773) [0x7f1f92fe71e5J =-18 18 _pthread_body + 131=libsystem_pthread.dylib + 12904) 10x7Iff92fe7268] 1-18 =nbsp; 18 _NSEventThread + 137 (AppKit + 1602363) =0x7fff8fbf833b] 1-18 18 =nbsp;CFRunLoopRunSpecific + 296 (CoreFoundation + 464984) =0x7fff98761858) 1-18 =nbsp; 18 _CFRunLoopRun + 1371(CoreFoundation + 466939) =0x7fff98761ffb) 1-18 =nbsp; 18 _CFRunLoopServiceMachPort + 212 (CoreFoundation = 469812) [0x7fff98762b34] 1-18 =nbsp; 18 mach_msg_trap + 10 =libsystem_kernel.dylib + 70878) (0x7fff8f3ac4de] 1-18 =nbsp; *18 =nbsp;ipc_mqueue_receive_continue + 0 (kernel + 1165472) =Oxffffff800031c8a0) 1.18

Thread =x50879a 18 samples (1-18) priority =1
<frontmost, thread QoS legacy, boosted, received =importance donation from WindowServer [105], IO policy
=important>

18 ??? =<65DB947D-2121-3976-A28C-971F1EE096A0> + 2105340) (0x100701ffc) =-18 18 _psynch_cvwait + 10 =libsystem_kernel.dylib + 90422) [0x7fff8f3b11361 1-18 =nbsp; *18 psynch_cvcontinue + 0 (pthread + 26908) =Oxffffff7f8Ode291c] 1-18

Thread =x50879b 18 samples (1.18) priority =1 <frontmost, thread QoS legacy, boosted, received =mportance donation from WindowServer 1105], 10 policy =mportant>

18 ??? =<65089470-2121-3976-A28C-971F1EE096A0> + 2103527) (0x1007018e7J =-18 18 _psynch_cvwait + 10 =libsystem_kernel.dylib + 90422) [0x7fff8f3b1136) 1-18 =nbsp; •18 psynch_cvcontinue + 0 (pthread + 26908) =Oxffffff7f8Ode291c) 1.18

Thread =x50879e 18 samples (1-18) priority =1
<frontmost, thread QoS legacy, boosted, received =importance donation from WindowServer [105], IO policy =important>

18 ??? =<390A2BBO-CAA4-3FFD-B19B-ED15A8313953> + 36899438) [0x103b30a6ej =-18 18 mach_msg_trap + 10 =libsystem_kernel.dylib + 70878) [0x7fff8f3ac4de] 1-18 =nbsp; *18 ipc_mqueue_receive_continue + 0 (kernel + =165472) [0xffffff800031c8a0) 1-18

=hread 0x5087a0 18 samples (1-18) priority =1
<frontmost, thread QoS legacy, boosted, received =importance donation from WindowServer [105], IO policy =mportant>

18 ???10x8000000000000000]=-18 18 ??? =<390A2BBO-CAA4-3FFD-B19B-ED15A8313953> + 2935256) (0x101acc9d8) =-18 18 _psynch_cvwait + 10 =libsystem_kernel.dylib + 90422) (0x7fff8f3b1136J 1-18 =nbsp; *18 psynch_cvcontinue + 0 (pthread + 26908) =Oxffffff7f8Ode291c) 1-18

Thread =x5087a1 18 samples (1-18) priority =1 <frontmost, thread QoS legacy, boosted, received =mportance donation from WindowServer 1105], 10 policy =mportant> 18 ??? [0x8000000000000000] =-18 18 ??? =<390A2880-CAA4-3FFD-B198-ED15A8313953> + 2935256) [0x1Olacc9d8) =-18 18 _psynch_cvwait + 10 =libsystem_kernel.dylib + 90422) 10x7fff8f3b1136) 1.18 =nbsp; *18 psynch_cvcontinue + 0 (pthread + 26908) =Oxffffff7f8Ode291c1 1-18

Thread =x5087a2 18 samples (1-18) priority =1

<frontmost, thread QoS legacy, boosted, received =mportance donation from WindowServer [105], 10 policy =mportant>

18 ??? =<6508947D-2121-3976-A28C-971F1EE096A0> + 2105340) [0x100701ffc]=-18 18 _psynch_cvwait + 10 =libsystem_kernel.dylib + 90422) [0x7fff8f3b11361 1.18 =nbsp; *18 psynch_cvcontinue + 0 (pthread + 26908) =Oxffffff7f8Ode291c11-18

Thread =x5087ab 18 samples (1-18) priority =1 <frontmost, thread QoS legacy, boosted, received =mportance donation from WindowServer 1105], 10 policy =mportant>

18 ??? =<65DB947D-2121-3976-A28C-971FlEE096A0> + 2105327) (0x100701fefj =-18 18 _psynch_cvwait + 10 =libsystem_kernel.dylib + 90422) [0x7fff8f3b1136] 1-18 =nbsp; *18 psynch_cvcontinue + 0 (pthread + 26908) =0xffffff7f80de291c1 1-18

Thread =x5087d6 18 samples (1-18) priority =1 <frontmost, thread QoS legacy, boosted, received =mportance donation from WindowServer 11051, IC policy =mportant>

18 ??? =<65DB947D-2121-3976-A28C-971FlEE096A0> + 2105340) [0x100701ffc] =-18 18 _psynch_cvwait + 10 =libsystem_kernel.dylib + 90422) [0x7fff8f3b11361 1-18 =nbsp; *18 psynch_cvcontinue + 0 (pthread + 26908) =Oxffffff7f8Ode291c) 1-18

Thread =x5087d7 18 samples (1-18) priority =1 <frontmost, thread QoS legacy, boosted, received =mportance donation from WindowServer 11051, 10 policy =mportant>

18 ??? =<65D8947D-2121-3976-A28C-971FlEE096A0> + 2105340) (0x100701ffc]=-18 18 _psynch_cvwait + 10 =libsystem_kernel.dylib + 90422) [0x7fff8f3b1136] 1-18 =nbsp; *18 psynch_cvcontinue + 0 (pthread + 26908) <change><s>=Oxffffff7180de291c)</s></change> 1-18

Thread =x5087d8 18 samples (1-18) priority =1
<frontmost, thread QoS legacy, boosted, received =importance donation from WindowServer [105], IO policy =important>

18 ??? =<65D8947D-2121-3976-A28C-971F1EE096A0> + 2103527) [0x1007018e7] =-18 18 _psynch_cvwait + 10 =libsystem_kernel.dylib + 90422) [0x7fff8f3b1136] 1.18 =nbsp; *18 psynch_cvcontinue + 0 (pthread + 26908) =Oxffffff7f8Ode291c] 1.18

## Thread =x5087d9 18 samples (1-18) priority =1

<frontmost, thread QoS legacy, boosted, received =mportance donation from WindowServer 11051, 10 policy =mportant>

18 ??? =<65DB947D-2121-3976-428C-971FlEE096A0> + 2105340) (0x100701ffc] =-18 18 _psynch_cvwait + 10 =libsystem_kernel.dylib + 90422) [0x7fff8f3b1136) 1-18 =nbsp; *18 psynch_cvcontinue + 0 (pthread + 26908) =0xffffff7f80de291cJ 1-18

## Thread =x5087dc 18 samples (1-18) priority =1

<frontmost, thread QoS legacy, boosted, received =mportance donation from WindowServer 1105], 10 policy =mportant>

18 ??? =<65D89470-2121-3976-A28C-971F1EE096A0> + 2105340) [0x100701ffc]=-18 18 _psynch_cvwait + 10 =libsystem_kernel.dylib + 90422) [0x7fff8f3b1136] 1-18 =nbsp; *18 psynch_cvcontinue + 0 (pthread + 26908) =Oxffffff7f8Ode291c] 1-18

Thread =x5087de 18 samples (1-18) priority =1
<frontmost, thread QoS legacy, boosted, received =importance donation from WindowServer [105], IO policy
=important>

18 ??? =<65DB947D-2121-3976-A28C-971F1EE096A0> + 2105340) [0x100701ffc] =-18

## Thread =x5087dc 18 samples (1-18) priority =1 (cont.)

18 _psynch_cywait + 10 =libsystemkernel.dylib + 90422) [0x7fff8f3b1136] 1-18 =nbsp; *18 psynch_cycontinue + 0 (pthread + 26908) =0xffffff7f80de291c] 1-18

Thread =x5087df 18 samples (1-18) priority =1

<frontmost, thread QoS legacy, boosted, received =mportance donation from WindowServer 11051, 1O policy =mportant>

18 ??? =<65DB947D-

=?xml version=.0" encoding=TF-8"? > date-last-viewed 0 date-received 1428493586 flags 8623750145 remote-id 495688