iOS simulator slowing osx down and interfering with magic mouse

Has anyone noticed that when using iOS simulator for extended periods of time or during launch of Apps that there is a disturbance in the performance of osx and the magic mouse?

The other day a darkened view loading across the osx screen and it said I needed to restart.

These are the logs for my app from the console - there are stacks m开发者_JS百科ore though:

0x954c7000 - 0x954cafe7  libmathCommon.A.dylib 315.0.0 (compatibility 1.0.0) <1622A54F-1A98-2CBE-B6A4-2122981A500E> /usr/lib/system/libmathCommon.A.dylib
0x95598000 - 0x9573fff7  libSystem.B.dylib 125.2.1 (compatibility 1.0.0) <62291026-D016-705D-DC1E-FC2B09D47DE5> /usr/lib/libSystem.B.dylib
0x96675000 - 0x96695fe7  libresolv.9.dylib 41.0.0 (compatibility 1.0.0) <751955F3-21FB-A03A-4E92-1F3D4EFB8C5B> /usr/lib/libresolv.9.dylib
0x96e34000 - 0x96ea3ff7  libvMisc.dylib 268.0.1 (compatibility 1.0.0) <5C3D7DA5-29EB-A745-E32B-26DBF547D532> /System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/vecLib.framework/Versions/A/libvMisc.dylib
0x98210000 - 0x982edff7  com.apple.vImage 4.0 (4.0) <64597E4B-F144-DBB3-F428-0EC3D9A1219E> /System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/vImage.framework/Versions/A/vImage
0x991e6000 - 0x991f2ff7  libkxld.dylib ??? (???) <F0E915AD-6B32-0D5E-D24B-B188447FDD23> /usr/lib/system/libkxld.dylib
0xffff0000 - 0xffff1fff  libSystem.B.dylib ??? (???) <62291026-D016-705D-DC1E-FC2B09D47DE5> /usr/lib/libSystem.B.dylib

This isn't an Xcode/simulator issue. THe "dark view" thing was a kernel panic, indicating something went horribly wrong in the OS.

This should be on superuser.

And they'd need to know more info:

• system configuration? Model? Memory? Hard Drive?
• anything interesting in the console log?