From: [email protected] Subject: Date/Time: 2015-04-08 07:43:31 -0400 Date: Wed, 08 Apr 2015 11:46:31 +0000 Date/Time: 2015-04-08 07:43:31 -0400 OS Version: 10.10.2 (Build 14C109) Architecture: x86 64h Report Version: 21 Command: Firefox Path: /Applications/Firefox.app/Contents/MacOS/firefox Version: 37.0.1 (3715.4.2) Parent: launchd [1] PID: 43032 Event: hang Duration: 1.70s (process was unresponsive for 29 seconds before sampling) Steps: 18 (100ms sampling interval) Hardware model: iMac15,1 Active cpus: 8 Fan speed: 1198 rpm Timeline format: stacks are sorted chronologically Use -i and -heavy to re-report with count sorting Heaviest stack for the main thread of the target process: 18 ??? (<65DB947D-2121-3976-A28C-971FIEE096A0> + 2103673) [0x100701979] 18 _psynch_cvwait + 10 (libsystem_kemel.dylib + 90422) [0x7fff8f3b1136] *18 psynch_cvcontinue + 0 (pthread + 26908) [Oxffffft7f8Ode291c] Process: firefox (Firefox) [43032] Path: /Applications/Firefox.app/Contents/MacOS/firefox Architecture: x86_64 Parent: launchd [1] UID: 501 Task size: 188804 pages CPU Time: 0.004s Note: Unresponsive for 29 seconds before sampling Thread 0x50874d DispatchQueue 1 18 samples (1-18) priority 47 <frontmost, thread QoS user interactive, boosted, received importance donation from WindowServer [105], IO policy important> 18 ??? (<65DB947D-2121-3976-A28C-971FIEE096A0> + 2103673) [0x100701979] 1-18 18 _psynch_cvwait + 10 (libsystem_kemel.dylib + 90422) [0x7fff8f3b1136] 1-18 *18 psynch_cvcontinue + 0 (pthread + 26908) [Oxffffff7f8Ode291c] 1-18 EFTA00667039