Date/Time:        2019-10-29 22:06:05 -0400
End time:         2019-10-29 22:06:06 -0400
OS Version:       Mac OS X 10.15.1 (Build 19B88)
Architecture:     x86_64
Report Version:   29

Data Source:      Stackshots
Shared Cache:     0x4569000 AED506E7-4B14-31B6-9CB5-7C6F841AD259
Reason:           (1 monitored services unresponsive): checkin with service: com.apple.WindowServer returned not alive with context: unresponsive work processor(s): WindowServer main thread  90 seconds since last successful checkin, 250 total successsful checkins since loa

Command:          WindowServer
Path:             /System/Library/PrivateFrameworks/SkyLight.framework/Resources/WindowServer
Version:          ??? (???)
PID:              243

Event:            service process watchdog
Duration:         0.92s
Steps:            10

Time Awake Since Boot: 2600s



Process:          WindowServer [243]
UUID:             690E6A2D-B58F-3505-BBC2-04296102DF68
Path:             /System/Library/PrivateFrameworks/SkyLight.framework/Resources/WindowServer
Architecture:     x86_64
Footprint:        172.04 MB
Start time:       2019-10-29 22:06:05 -0400
End time:         2019-10-29 22:06:06 -0400
Num samples:      10 (1-10)
Note:             2 idle work queue threads omitted

  Thread 0x4e9    10 samples (1-10)    priority 79 (base 79)
  <IO tier 0>
  10  start + 1 (libdyld.dylib + 70373) [0x7fff6772a2e5] 1-10
    10  ??? (WindowServer + 4922) [0x108f8c33a] 1-10
      10  SLXServer + 1470 (SkyLight + 2310375) [0x7fff5e5780e7] 1-10
        10  server_loop + 91 (SkyLight + 2310473) [0x7fff5e578149] 1-10
          10  CGXRunOneServicesPass + 184 (SkyLight + 2306348) [0x7fff5e57712c] 1-10
            10  run_timer_pass + 482 (SkyLight + 2098252) [0x7fff5e54444c] 1-10
              10  performCapturePass + 69 (SkyLight + 452720) [0x7fff5e3b2870] 1-10
                10  runCapturePass + 446 (SkyLight + 453272) [0x7fff5e3b2a98] 1-10
                  10  CaptureSurfaceMetal::Populate(CGXWindowSubArray, CGSRegionObject*, CGSRegionObject**, CGXRedrawOption, WSWindowTagBitMask, WSWindowTagBitMask, bool) + 194 (SkyLight + 2141354) [0x7fff5e54ecaa] 1-10
                    10  MetalBacking::CreateCompositeDestination(MetalContext*, CGRect, float, CGColorSpace*, unsigned int, CGXDisplayDevice*) + 91 (SkyLight + 2203221) [0x7fff5e55de55] 1-10
                      10  MetalIOSurfaceBacking::PrepareForUse(MetalContext*, unsigned long long) + 371 (SkyLight + 2211205) [0x7fff5e55fd85] 1-10
                        10  -[BronzeMtlDevice newTextureWithDescriptor:iosurface:plane:] + 107 (AMDMTLBronzeDriver + 270062) [0x7fff24976eee] 1-10
                          10  -[BronzeMtlTexture initIOSurfaceWithDevice:descriptor:iosurface:plane:field:] + 325 (AMDMTLBronzeDriver + 208105) [0x7fff24967ce9] 1-10
                            10  -[MTLIOAccelTexture initWithDevice:descriptor:iosurface:plane:field:args:argsSize:] + 791 (Metal + 59003) [0x7fff355cd67b] 1-10
                              10  -[MTLIOAccelResource initWithDevice:options:args:argsSize:] + 36 (Metal + 17330) [0x7fff355c33b2] 1-10
                                10  -[MTLIOAccelResource initWithDevice:remoteStorageResource:options:args:argsSize:] + 413 (Metal + 340678) [0x7fff356122c6] 1-10
                                  10  IOAccelResourceCreate + 124 (IOAccelerator + 7473) [0x7fff54429d31] 1-10
                                    10  IOConnectCallMethod + 244 (IOKit + 35889) [0x7fff32f90c31] 1-10
                                      10  io_connect_method + 383 (IOKit + 36324) [0x7fff32f90de4] 1-10
                                        10  mach_msg_trap + 10 (libsystem_kernel.dylib + 4454) [0x7fff67873166] 1-10
                                         *10  ??? (<7503CD47-851F-321E-8747-50DB4299165F> + 922150) [0xffffff80002e1226] 1-10
                                           *10  ??? (<7503CD47-851F-321E-8747-50DB4299165F> + 2396293) [0xffffff8000449085] 1-10
                                             *10  ??? (<7503CD47-851F-321E-8747-50DB4299165F> + 1232885) [0xffffff800032cff5] 1-10
                                               *10  ??? (<7503CD47-851F-321E-8747-50DB4299165F> + 1140037) [0xffffff8000316545] 1-10
                                                 *10  ??? (<7503CD47-851F-321E-8747-50DB4299165F> + 1308856) [0xffffff800033f8b8] 1-10
                                                   *10  ??? (<7503CD47-851F-321E-8747-50DB4299165F> + 2231186) [0xffffff8000420b92] 1-10
                                                     *10  ??? (<7503CD47-851F-321E-8747-50DB4299165F> + 8844179) [0xffffff8000a6f393] 1-10
                                                       *10  ??? (<72B8A0B5-E12C-3764-9187-0AC0E93416F9> + 180450) [0xffffff7f834110e2] 1-10
                                                         *10  ??? (<7503CD47-851F-321E-8747-50DB4299165F> + 8807419) [0xffffff8000a663fb] 1-10
                                                           *10  ??? (<72B8A0B5-E12C-3764-9187-0AC0E93416F9> + 179945) [0xffffff7f83410ee9] 1-10
                                                             *10  ??? (<72B8A0B5-E12C-3764-9187-0AC0E93416F9> + 172111) [0xffffff7f8340f04f] 1-10
                                                               *10  ??? (<7503CD47-851F-321E-8747-50DB4299165F> + 2467563) [0xffffff800045a6eb] 1-10
                                                                 *10  ??? (<7503CD47-851F-321E-8747-50DB4299165F> + 2469321) [0xffffff800045adc9] 1-10
                                                                   *10  ??? (<7503CD47-851F-321E-8747-50DB4299165F> + 1416623) [0xffffff8000359daf] 1-10
                                                                     *10  ??? (<7503CD47-851F-321E-8747-50DB4299165F> + 1422769) [0xffffff800035b5b1] 1-10
                                                                       *10  ??? (<7503CD47-851F-321E-8747-50DB4299165F> + 2481288) [0xffffff800045dc88] (blocked by turnstile with priority 92 waiting for ScreenSaverEngine [858] thread 0x49b1) 1-10

  Thread 0x7f7    10 samples (1-10)    priority 37 (base 37)
  <thread QoS user initiated (requested user interactive), IO tier 0>
  10  start_wqthread + 15 (libsystem_pthread.dylib + 9595) [0x7fff6793757b] 1-10
    10  _pthread_wqthread + 290 (libsystem_pthread.dylib + 10011) [0x7fff6793771b] 1-10
      10  _dispatch_workloop_worker_thread + 598 (libdispatch.dylib + 76446) [0x7fff676e9a9e] 1-10
        10  _dispatch_lane_invoke + 363 (libdispatch.dylib + 37970) [0x7fff676e0452] 1-10
          10  _dispatch_lane_serial_drain + 597 (libdispatch.dylib + 35534) [0x7fff676dface] 1-10
            10  _dispatch_client_callout + 8 (libdispatch.dylib + 13582) [0x7fff676da50e] 1-10
              10  _dispatch_call_block_and_release + 12 (libdispatch.dylib + 9603) [0x7fff676d9583] 1-10
                10  -[VirtualDisplayListener rx] + 77 (CoreDisplay + 55043) [0x7fff30063703] 1-10
                  10  mach_msg_server_once + 270 (libsystem_kernel.dylib + 35354) [0x7fff6787aa1a] 1-10
                    10  mach_msg_trap + 10 (libsystem_kernel.dylib + 4454) [0x7fff67873166] 1-10
                     *10  ??? (<7503CD47-851F-321E-8747-50DB4299165F> + 1161360) [0xffffff800031b890] 1-10

  Thread 0x881    Thread name "com.apple.coreanimation.render-server"    10 samples (1-10)    priority 79 (base 79)
  <IO tier 0>
  10  thread_start + 15 (libsystem_pthread.dylib + 9615) [0x7fff6793758f] 1-10
    10  _pthread_start + 125 (libsystem_pthread.dylib + 23862) [0x7fff6793ad36] 1-10
      10  thread_fun(void*) + 25 (QuartzCore + 355697) [0x7fff3ba5fd71] 1-10
        10  CA::Render::Server::server_thread(void*) + 974 (QuartzCore + 356690) [0x7fff3ba60152] 1-10
          10  mach_msg_trap + 10 (libsystem_kernel.dylib + 4454) [0x7fff67873166] 1-10
           *10  ??? (<7503CD47-851F-321E-8747-50DB4299165F> + 1161360) [0xffffff800031b890] 1-10

  Thread 0x88b    10 samples (1-10)    priority 31 (base 31)
  <thread QoS default (requested default), IO tier 0>
  10  thread_start + 15 (libsystem_pthread.dylib + 9615) [0x7fff6793758f] 1-10
    10  _pthread_start + 125 (libsystem_pthread.dylib + 23862) [0x7fff6793ad36] 1-10
      10  void* std::__1::__thread_proxy<std::__1::tuple<std::__1::unique_ptr<std::__1::__thread_struct, std::__1::default_delete<std::__1::__thread_struct> >, void (CoreDisplay::Mach::Server::*)(), CoreDisplay::Mach::Server*> >(void*) + 59 (CoreDisplay + 860067) [0x7fff30127fa3] 1-10
        10  CoreDisplay::Mach::Server::Start() + 147 (CoreDisplay + 859707) [0x7fff30127e3b] 1-10
          10  mach_msg_trap + 10 (libsystem_kernel.dylib + 4454) [0x7fff67873166] 1-10
           *10  ??? (<7503CD47-851F-321E-8747-50DB4299165F> + 1161360) [0xffffff800031b890] 1-10

  Thread 0x4cad    10 samples (1-10)    priority 31 (base 31)
  <thread QoS default (requested default), IO tier 0>
  10  start_wqthread + 15 (libsystem_pthread.dylib + 9595) [0x7fff6793757b] 1-10
    10  _pthread_wqthread + 290 (libsystem_pthread.dylib + 10011) [0x7fff6793771b] 1-10
      10  _dispatch_workloop_worker_thread + 598 (libdispatch.dylib + 76446) [0x7fff676e9a9e] 1-10
        10  _dispatch_lane_invoke + 363 (libdispatch.dylib + 37970) [0x7fff676e0452] 1-10
          10  _dispatch_lane_serial_drain + 263 (libdispatch.dylib + 35200) [0x7fff676df980] 1-10
            10  _dispatch_source_invoke + 2084 (libdispatch.dylib + 86980) [0x7fff676ec3c4] 1-10
              10  _dispatch_continuation_pop + 414 (libdispatch.dylib + 22208) [0x7fff676dc6c0] 1-10
                10  _dispatch_client_callout + 8 (libdispatch.dylib + 13582) [0x7fff676da50e] 1-10
                  10  -[MTLIOAccelDevice updateResourcePoolPurgeability] + 76 (Metal + 331962) [0x7fff356100ba] 1-10
                    10  -[MTLIOAccelResourcePool updateResourcePurgeability] + 163 (Metal + 228872) [0x7fff355f6e08] 1-10
                      10  -[MTLIOAccelResource setPurgeableState:] + 142 (Metal + 115796) [0x7fff355db454] 1-10
                        10  IOAccelResourceSetPurgeable + 106 (IOAccelerator + 11871) [0x7fff5442ae5f] 1-10
                          10  IOConnectCallMethod + 186 (IOKit + 35831) [0x7fff32f90bf7] 1-10
                            10  io_connect_method + 383 (IOKit + 36324) [0x7fff32f90de4] 1-10
                              10  mach_msg_trap + 10 (libsystem_kernel.dylib + 4454) [0x7fff67873166] 1-10
                               *10  ??? (<7503CD47-851F-321E-8747-50DB4299165F> + 922150) [0xffffff80002e1226] 1-10
                                 *10  ??? (<7503CD47-851F-321E-8747-50DB4299165F> + 2396293) [0xffffff8000449085] 1-10
                                   *10  ??? (<7503CD47-851F-321E-8747-50DB4299165F> + 1232885) [0xffffff800032cff5] 1-10
                                     *10  ??? (<7503CD47-851F-321E-8747-50DB4299165F> + 1140037) [0xffffff8000316545] 1-10
                                       *10  ??? (<7503CD47-851F-321E-8747-50DB4299165F> + 1308856) [0xffffff800033f8b8] 1-10
                                         *10  ??? (<7503CD47-851F-321E-8747-50DB4299165F> + 2231186) [0xffffff8000420b92] 1-10
                                           *10  ??? (<7503CD47-851F-321E-8747-50DB4299165F> + 8844179) [0xffffff8000a6f393] 1-10
                                             *10  ??? (<72B8A0B5-E12C-3764-9187-0AC0E93416F9> + 180450) [0xffffff7f834110e2] 1-10
                                               *10  ??? (<7503CD47-851F-321E-8747-50DB4299165F> + 8807572) [0xffffff8000a66494] 1-10
                                                 *10  ??? (<7503CD47-851F-321E-8747-50DB4299165F> + 8813863) [0xffffff8000a67d27] 1-10
                                                   *10  ??? (<72B8A0B5-E12C-3764-9187-0AC0E93416F9> + 176026) [0xffffff7f8340ff9a] 1-10
                                                     *10  ??? (<72B8A0B5-E12C-3764-9187-0AC0E93416F9> + 178647) [0xffffff7f834109d7] 1-10
                                                       *10  ??? (<7503CD47-851F-321E-8747-50DB4299165F> + 2467563) [0xffffff800045a6eb] 1-10
                                                         *10  ??? (<7503CD47-851F-321E-8747-50DB4299165F> + 2469321) [0xffffff800045adc9] 1-10
                                                           *10  ??? (<7503CD47-851F-321E-8747-50DB4299165F> + 1416623) [0xffffff8000359daf] 1-10
                                                             *10  ??? (<7503CD47-851F-321E-8747-50DB4299165F> + 1422769) [0xffffff800035b5b1] 1-10
                                                               *10  ??? (<7503CD47-851F-321E-8747-50DB4299165F> + 2481288) [0xffffff800045dc88] (blocked by turnstile with priority 92 waiting for ScreenSaverEngine [858] thread 0x49b1) 1-10

  Thread 0x4cb4    10 samples (1-10)    priority 79 (base 79)
  <IO tier 0>
  10  thread_start + 15 (libsystem_pthread.dylib + 9615) [0x7fff6793758f] 1-10
    10  _pthread_start + 125 (libsystem_pthread.dylib + 23862) [0x7fff6793ad36] 1-10
      10  _dispatch_worker_thread + 252 (libdispatch.dylib + 71168) [0x7fff676e8600] 1-10
        10  _dispatch_root_queue_drain + 326 (libdispatch.dylib + 71650) [0x7fff676e87e2] 1-10
          10  _dispatch_lane_invoke + 414 (libdispatch.dylib + 38021) [0x7fff676e0485] 1-10
            10  _dispatch_lane_serial_drain + 263 (libdispatch.dylib + 35200) [0x7fff676df980] 1-10
              10  _dispatch_source_invoke + 2084 (libdispatch.dylib + 86980) [0x7fff676ec3c4] 1-10
                10  _dispatch_continuation_pop + 414 (libdispatch.dylib + 22208) [0x7fff676dc6c0] 1-10
                  10  _dispatch_client_callout + 8 (libdispatch.dylib + 13582) [0x7fff676da50e] 1-10
                    10  invocation function for block in CA::OGL::MetalContext::start_idle_collect_timer() + 296 (QuartzCore + 211220) [0x7fff3ba3c914] 1-10
                      10  -[MTLIOAccelResource setPurgeableState:] + 142 (Metal + 115796) [0x7fff355db454] 1-10
                        10  IOAccelResourceSetPurgeable + 106 (IOAccelerator + 11871) [0x7fff5442ae5f] 1-10
                          10  IOConnectCallMethod + 186 (IOKit + 35831) [0x7fff32f90bf7] 1-10
                            10  io_connect_method + 383 (IOKit + 36324) [0x7fff32f90de4] 1-10
                              10  mach_msg_trap + 10 (libsystem_kernel.dylib + 4454) [0x7fff67873166] 1-10
                               *10  ??? (<7503CD47-851F-321E-8747-50DB4299165F> + 922150) [0xffffff80002e1226] 1-10
                                 *10  ??? (<7503CD47-851F-321E-8747-50DB4299165F> + 2396293) [0xffffff8000449085] 1-10
                                   *10  ??? (<7503CD47-851F-321E-8747-50DB4299165F> + 1232885) [0xffffff800032cff5] 1-10
                                     *10  ??? (<7503CD47-851F-321E-8747-50DB4299165F> + 1140037) [0xffffff8000316545] 1-10
                                       *10  ??? (<7503CD47-851F-321E-8747-50DB4299165F> + 1308856) [0xffffff800033f8b8] 1-10
                                         *10  ??? (<7503CD47-851F-321E-8747-50DB4299165F> + 2231186) [0xffffff8000420b92] 1-10
                                           *10  ??? (<7503CD47-851F-321E-8747-50DB4299165F> + 8844179) [0xffffff8000a6f393] 1-10
                                             *10  ??? (<72B8A0B5-E12C-3764-9187-0AC0E93416F9> + 180450) [0xffffff7f834110e2] 1-10
                                               *10  ??? (<7503CD47-851F-321E-8747-50DB4299165F> + 8807572) [0xffffff8000a66494] 1-10
                                                 *10  ??? (<7503CD47-851F-321E-8747-50DB4299165F> + 8813863) [0xffffff8000a67d27] 1-10
                                                   *10  ??? (<72B8A0B5-E12C-3764-9187-0AC0E93416F9> + 176026) [0xffffff7f8340ff9a] 1-10
                                                     *10  ??? (<72B8A0B5-E12C-3764-9187-0AC0E93416F9> + 178647) [0xffffff7f834109d7] 1-10
                                                       *10  ??? (<7503CD47-851F-321E-8747-50DB4299165F> + 2467563) [0xffffff800045a6eb] 1-10
                                                         *10  ??? (<7503CD47-851F-321E-8747-50DB4299165F> + 2469321) [0xffffff800045adc9] 1-10
                                                           *10  ??? (<7503CD47-851F-321E-8747-50DB4299165F> + 1416623) [0xffffff8000359daf] 1-10
                                                             *10  ??? (<7503CD47-851F-321E-8747-50DB4299165F> + 1422769) [0xffffff800035b5b1] 1-10
                                                               *10  ??? (<7503CD47-851F-321E-8747-50DB4299165F> + 2481288) [0xffffff800045dc88] (blocked by turnstile with priority 92 waiting for ScreenSaverEngine [858] thread 0x49b1) 1-10

  Thread 0x5034    10 samples (1-10)    priority 79 (base 79)
  <IO tier 0>
  10  thread_start + 15 (libsystem_pthread.dylib + 9615) [0x7fff6793758f] 1-10
    10  _pthread_start + 125 (libsystem_pthread.dylib + 23862) [0x7fff6793ad36] 1-10
      10  _dispatch_worker_thread + 318 (libdispatch.dylib + 71234) [0x7fff676e8642] 1-10
        10  _dispatch_semaphore_wait_slow + 58 (libdispatch.dylib + 15938) [0x7fff676dae42] 1-10
          10  semaphore_timedwait_trap + 10 (libsystem_kernel.dylib + 4538) [0x7fff678731ba] 1-10
           *10  ??? (<7503CD47-851F-321E-8747-50DB4299165F> + 1466336) [0xffffff8000365fe0] 1-10

  Thread 0x5035    10 samples (1-10)    priority 79 (base 79)
  <IO tier 0>
  10  thread_start + 15 (libsystem_pthread.dylib + 9615) [0x7fff6793758f] 1-10
    10  _pthread_start + 125 (libsystem_pthread.dylib + 23862) [0x7fff6793ad36] 1-10
      10  _dispatch_worker_thread + 318 (libdispatch.dylib + 71234) [0x7fff676e8642] 1-10
        10  _dispatch_semaphore_wait_slow + 58 (libdispatch.dylib + 15938) [0x7fff676dae42] 1-10
          10  semaphore_timedwait_trap + 10 (libsystem_kernel.dylib + 4538) [0x7fff678731ba] 1-10
           *10  ??? (<7503CD47-851F-321E-8747-50DB4299165F> + 1466336) [0xffffff8000365fe0] 1-10

  Binary Images:
           0x108f8b000 -        0x108f8cfff  WindowServer (440.14)              <690E6A2D-B58F-3505-BBC2-04296102DF68>  /System/Library/PrivateFrameworks/SkyLight.framework/Resources/WindowServer
        0x7fff24935000 -     0x7fff24a55fff  AMDMTLBronzeDriver (3.2.24)        <63C45CEB-4AD1-396E-90C5-9A09B90C2584>  /System/Library/Extensions/AMDMTLBronzeDriver.bundle/Contents/MacOS/AMDMTLBronzeDriver
        0x7fff30056000 -     0x7fff30162fff  CoreDisplay (186.2.4)              <AD10EEEB-9A5F-3904-A487-50F13E4B2357>  /System/Library/Frameworks/CoreDisplay.framework/Versions/A/CoreDisplay
        0x7fff32f88000 -     0x7fff3302bfff  IOKit (1726.41.1)                  <FBB4A97B-D7CF-3B8C-932D-672343D63260>  /System/Library/Frameworks/IOKit.framework/Versions/A/IOKit
        0x7fff355bf000 -     0x7fff35682fff  Metal (212.2.3)                    <AA7DE079-2DFD-3E9F-A041-464CFBE1ABAE>  /System/Library/Frameworks/Metal.framework/Versions/A/Metal
        0x7fff3ba09000 -     0x7fff3bc87fff  QuartzCore (815.19.4.2)            <5F492A40-BBBC-3A31-83A8-32462A7B1FB4>  /System/Library/Frameworks/QuartzCore.framework/Versions/A/QuartzCore
        0x7fff54428000 -     0x7fff54430fff  IOAccelerator (438.2.7)            <98C1C6DE-68A7-3396-B3D6-336CF11964AD>  /System/Library/PrivateFrameworks/IOAccelerator.framework/Versions/A/IOAccelerator
        0x7fff5e344000 -     0x7fff5e63cfff  SkyLight (440.14)                  <87B4BC36-78DA-3320-B455-FACB48DC63AA>  /System/Library/PrivateFrameworks/SkyLight.framework/Versions/A/SkyLight
        0x7fff676d7000 -     0x7fff67718fff  libdispatch.dylib (1173.40.5)      <1FF421B6-4BF0-3B5F-8F56-5ED3B3EFE06F>  /usr/lib/system/libdispatch.dylib
        0x7fff67719000 -     0x7fff6774efff  libdyld.dylib (733.6)              <2FA4B359-624B-337C-9207-CDCF841C2E52>  /usr/lib/system/libdyld.dylib
        0x7fff67872000 -     0x7fff6789efff  libsystem_kernel.dylib (6153.41.3) <18918E9C-45BC-3D5A-A6B6-3DBC60EEE2E1>  /usr/lib/system/libsystem_kernel.dylib
        0x7fff67935000 -     0x7fff6793ffff  libsystem_pthread.dylib (416.40.3) <53C65598-9E9E-36FF-BDC2-74F228E58C5C>  /usr/lib/system/libsystem_pthread.dylib
   *0xffffff7f833e5000 -                ???  ???                                <72B8A0B5-E12C-3764-9187-0AC0E93416F9>
   *0xffffff8000200000 -                ???  ???                                <7503CD47-851F-321E-8747-50DB4299165F>