android - After macOS Sierra Update, Eject USB trigger hard-reset -

i'm using android studio , samsung galaxy s4. after updated macos sierra devpreview version. when eject phone usb connection, retina macbook pro mid2015 freeze , not response. (two times encountered this) need enforce hard-reset keyboard hold power key. after restart gives me below error.

what mean? need to. informed bug report.

tue jun 28 12:53:54 2016  *** panic report *** panic(cpu 4 caller 0xffffff8002cb260e): preemption level underflow, possible cause unlocking unlocked mutex or spinlock backtrace (cpu 4), frame : return address 0xffffff9238053c00 : 0xffffff8002d0475c 0xffffff9238053c80 : 0xffffff8002cb260e 0xffffff9238053c90 : 0xffffff8002cb232f 0xffffff9238053ca0 : 0xffffff800329473b 0xffffff9238053cf0 : 0xffffff80032957a0 0xffffff9238053d40 : 0xffffff80032ed07e 0xffffff9238053db0 : 0xffffff8002dce792 0xffffff9238053e00 : 0xffffff8002d092e9 0xffffff9238053e40 : 0xffffff8002ce6eb1 0xffffff9238053e90 : 0xffffff8002cfaca1 0xffffff9238053f10 : 0xffffff8002dfa3b9 0xffffff9238053fb0 : 0xffffff8002cb5dc6  bsd process name corresponding current thread: adb  mac os version: 16a201w  kernel version: darwin kernel version 16.0.0: fri jun  3 13:56:38 pdt 2016; root:xnu-3705.0.0.1.10~1/release_x86_64 kernel uuid: 79d0a860-c130-3371-ab9b-3772ae60777b kernel slide:     0x0000000002a00000 kernel text base: 0xffffff8002c00000 __hib  text base: 0xffffff8002b00000 system model name: macbookpro11,5 (mac-06f11f11946d27c5)  system uptime in nanoseconds: 19949337419569 last loaded kext @ 18286149408268: com.devguru.driver.samsungacmdata   1.4.32 (addr 0xffffff7f87006000, size 86016) last unloaded kext @ 17714940195824: com.apple.driver.applemikeyhiddriver  127 (addr 0xffffff7f86f4a000, size 16384) loaded kexts: com.devguru.driver.samsungacmdata   1.4.32 com.devguru.driver.samsungacmcontrol    1.4.32 com.devguru.driver.samsungmtp   1.4.32 com.devguru.driver.samsungcomposite 1.4.32 com.intel.kext.intelhaxm    6.0.1 com.apple.filesystems.smbfs 3.1 com.apple.driver.audioauuc  1.70 com.apple.driver.agpm   110.23.4 com.apple.driver.appleplatformenabler   2.7.0d0 com.apple.driver.x86platformshim    1.0.0 com.apple.filesystems.autofs    3.0 com.apple.driver.appleosxwatchdog   1 com.apple.driver.applehda   275.68 com.apple.driver.applegraphicsdevicepolicy  3.13.45 com.apple.driver.appleupstreamuserclient    3.6.1 com.apple.driver.pmtelemetry    1 com.apple.iokit.iouserethernet  1.0.1 com.apple.kext.amdframebuffer   1.4.4 com.apple.iokit.iobluetoothserialmanager    5.0.0d59 com.apple.driver.appleintelhd5000graphics   10.1.8 com.apple.amdradeonx4000    1.4.4 com.apple.dont_steal_mac_os_x   7.0.0 com.apple.driver.applehv    1 com.apple.iokit.broadcombluetoothhostcontrollerusbtransport 5.0.0d59 com.apple.driver.applethunderboltip 3.0.8 com.apple.driver.appleintelframebufferazul  10.1.8 com.apple.driver.applesmclmu    208 com.apple.driver.applelpc   3.1 com.apple.driver.applemuxcontrol    3.13.45 com.apple.driver.applecamerainterface   5.52.0 com.apple.kext.amd7000controller    1.4.4 com.apple.driver.appleintelslowadaptiveclocking 4.0.0 com.apple.driver.applemccscontrol   1.2.13 com.apple.driver.appleusbcardreader 396 com.apple.driver.appletopcasehideventdriver 95 com.apple.driver.appleusbtopcasedriver  95 com.apple.iokit.ioahciblockstorage  292 com.apple.driver.airport.brcm4360   1100.25.1a7 com.apple.driver.appleahciport  324 com.apple.applefscompression.applefscompressiontypedataless 1.0.0d1 com.apple.applefscompression.applefscompressiontypezlib 1.0.0 com.apple.bootcache 38 com.apple.filesystems.hfs.kext  360 com.apple.driver.applesmartbatterymanager   161.0.0 com.apple.driver.applertc   2.0 com.apple.driver.appleacpibuttons   5.0 com.apple.driver.applehpet  1.8 com.apple.driver.applesmbios    2.1 com.apple.driver.appleacpiec    5.0 com.apple.driver.appleapic  1.7 com.apple.nke.applicationfirewall   165 com.apple.security.quarantine   3 com.apple.security.tmsafetynet  8 com.apple.kext.triggers 1.0 com.apple.driver.dspfunclib 275.68 com.apple.kext.osvkerndsplib    525 com.apple.iokit.ioserialfamily  11 com.apple.iokit.iosurface   141 com.apple.iokit.iobluetoothhostcontrollerusbtransport   5.0.0d59 com.apple.iokit.iobluetoothhostcontrollertransport  5.0.0d59 com.apple.iokit.iobluetoothfamily   5.0.0d59 com.apple.iokit.ioacceleratorfamily2    259 com.apple.driver.applehdacontroller 275.68 com.apple.iokit.iohdafamily 275.68 com.apple.iokit.ioaudiofamily   205.9 com.apple.veclib.kext   1.2.0 com.apple.driver.applegraphicscontrol   3.13.45 com.apple.driver.x86platformplugin  1.0.0 com.apple.driver.ioplatformpluginfamily 6.0.0d7 com.apple.kext.amdsupport   1.4.4 com.apple.applegraphicsdevicecontrol    3.13.45 com.apple.iokit.ioslowadaptiveclockingfamily    1.0.0 com.apple.driver.applebacklightexpert   1.1.0 com.apple.iokit.iondrvsupport   2.4.1 com.apple.driver.applesmc   3.1.9 com.apple.driver.applesmbuscontroller   1.0.14d1 com.apple.iokit.iographicsfamily    2.4.1 com.apple.iokit.ioscsiblockcommandsdevice   391 com.apple.iokit.iousbmassstoragedriver  126.1.1 com.apple.iokit.ioscsiarchitecturemodelfamily   391 com.apple.driver.applehidkeyboard   194 com.apple.driver.applemultitouchdriver  355.1.1 com.apple.driver.appleinputdevicesupport    69 com.apple.driver.usb.iousbhosthiddevice 1.1 com.apple.driver.usb.networking 5.0.0 com.apple.driver.usb.appleusbhostcompositedevice    1.1 com.apple.driver.corestorage    530 com.apple.iokit.io80211family   1200.12.2 com.apple.driver.mdnsoffloaduserclient  1.0.1b8 com.apple.driver.corecapture    1.0.4 com.apple.driver.usb.appleusbxhcipci    1.1 com.apple.driver.usb.appleusbxhci   1.1 com.apple.iokit.ioahcifamily    287 com.apple.filesystems.hfs.encodings.kext    1 com.apple.iokit.ionetworkingfamily  3.2 com.apple.driver.applethunderboltdpinadapter    4.5.2 com.apple.driver.applethunderboltdpadapterfamily    4.5.2 com.apple.driver.applethunderboltpcidownadapter 2.0.3 com.apple.driver.applethunderboltnhi    4.1.1 com.apple.iokit.iothunderboltfamily 6.1.3 com.apple.iokit.iousbfamily 900.4.1 com.apple.iokit.iousbhostfamily 1.1 com.apple.driver.appleusbhostmergeproperties    1.1 com.apple.driver.appleefinvram  2.0 com.apple.driver.applebuspowercontroller    1.0 com.apple.driver.appleefiruntime    2.0 com.apple.iokit.iohidfamily 2.0.0 com.apple.iokit.iosmbusfamily   1.1 com.apple.security.sandbox  300.0 com.apple.kext.applematch   1.0.0d1 com.apple.driver.applekeystore  2 com.apple.driver.applemobilefileintegrity   1.0.5 com.apple.driver.applecredentialmanager 1.0 com.apple.driver.diskimages 439.2 com.apple.iokit.iostoragefamily 2.1 com.apple.iokit.ioreportfamily  31 com.apple.driver.applefdekeystore   28.30 com.apple.driver.appleacpiplatform  5.0 com.apple.iokit.iopcifamily 2.9 com.apple.iokit.ioacpifamily    1.4 com.apple.kec.libm  1 com.apple.kec.pthread   1 com.apple.kec.corecrypto    1.0 model: macbookpro11,5, bootrom mbp114.0172.b09, 4 processors, intel core i7, 2,5 ghz, 16 gb, smc 2.30f2 graphics: amd radeon r9 m370x, amd radeon r9 m370x, pcie, 2048 mb graphics: intel iris pro, intel iris pro, built-in memory module: bank 0/dimm0, 8 gb, ddr3, 1600 mhz, 0x80ad, 0x484d54343147533642465238412d50422020 memory module: bank 1/dimm0, 8 gb, ddr3, 1600 mhz, 0x80ad, 0x484d54343147533642465238412d50422020 airport: spairport_wireless_card_type_airport_extreme (0x14e4, 0x152), broadcom bcm43xx 1.0 (7.21.149.34.1a7) bluetooth: version 5.0.0d59, 3 services, 27 devices, 1 incoming serial ports network service: wi-fi, airport, en0 serial ata device: apple ssd sm0512g, 500,28 gb usb device: usb 3.0 bus usb device: apple internal keyboard / trackpad usb device: bluetooth usb host controller thunderbolt bus: macbook pro, apple inc., 27.1