Since installing Catalina yesterday, multiple crashes from userspace watchdog timeout

Question

Since installing Catalina yesterday, multiple crashes from userspace watchdog timeout

Since I installed Catalina yesterday, I have had around five crashes with the error:

panic(cpu 6 caller 0xffffff7f8879cad5): userspace watchdog timeout: no successful checkins from com.apple.WindowServer in 140 seconds

Any solutions. iMac Pro had been operating fine before update. Only apps running at the time were Chrome and TimeMachine backing up to a Drobo 5N2 (plus of course background apps like Google Backup and Sync, Dropbox, etc).

iMac Pro

Posted on Oct 8, 2019 9:20 AM

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Answer 1

Top-ranking reply

MJhaber

Level 1

24 points

Oct 11, 2019 12:43 PM in response to ProfessorScott

This happens to me reliably when i have an external monitor connected though a docking station and system is idle. If i have a video or other non static content displaying on the external monitor, my MacBook Pro I9 does not crash. This is new for Catalina and same configuration did not crash on Mojave. Need a fix...

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Answer 2

BookX

Level 1

28 points

Oct 21, 2019 12:06 PM in response to ProfessorScott

Is is because of this adapter:

USB-C Digital AV Multiport Adapter. If it’s plugged in the Mac’s port, regardless if the external monitor or UHD TV is on or off, it just goes into a standby mode when the Mac is idle for 5-7 minutes. The system is trying to recover but after 5 Spin crashes, kernel will go into panic. It is deceiving because it can crash at any app you lastly used before Mac went into idle. If a video or movie is played or the computer is used constantly, then there’s no crashes, because the adapter cannot idle.

This video adapter became all the sudden obsolete after Catalina update.

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Answer 3

BookX

Level 1

28 points

Oct 26, 2019 4:39 PM in response to Kryminal

I had a chat with an Apple Support specialist early this week. He was very helpful, courteous, a professional in his field; as always, including the Genius personnel at the Apple Store when I had questions regarding several issue(s) with my Macs.

Long story short: the Apple specialist covered all the basic pre-macOS Catalina install procedures, including post Catalina troubleshooting basic procedures. Such as:

Pre-macOS Catalina install (upgrade) procedure:

1. Making sure the boot HDD or SSD is free of errors; boot procedure regarding using Disk Utility, Check / Repair ==> About macOS Recovery https://support.apple.com/en-us/HT201314; if ok, next procedure

2. Uninstall all third party apps that didn’t have an option to update / upgrade in order to be operational on macOS Catalina. Note, these are actually 64 bit applications that eventually do not have the latest (necessary) updates to run trouble free in macOS Catalina.

After Catalina Install - basic troubleshooting procedures:

1. How to reset the System Management Controller (SMC) on your Mac: https://support.apple.com/en-us/HT201295; if not ok, next procedure

2. Follow instructions on how to Reset NVRAM or PRAM on your Mac: https://support.apple.com/en-us/HT204063; if still not ok, next procedure

3. Repeat Disk Utility, Check / Repair procedure (link above) to make sure the HDD or SSD data is still pristine.

4. If all of the above don’t clear the issue(s) ==> Create a New Administrator account to check if the issue is encountered in that new account. How to test an issue in another user account on your Mac: https://support.apple.com/en-us/HT204443

Note, I have created a new admin account and the Kernel panic and crashes went away. Also, you may want to use an application that points out the issues, like EtreCheck for example, and get to know what causing Kernel panics and crashes, including beachball spin errors and crashes. Work from that app generated report to get information on available updates or upgrades on the apps in question. If no further updates or upgrades are available, see if the app can be removed by means of conventional uninstall option. If that is not available, search for manual alternatives to remove the app and any orphan files left behind from an incomplete, (rather partial) uninstallation(s); (Note, "Cleaner" like apps might not work 100% in new macOS Catalina; most importantly, not recommended).

In My case, I found some some launch agents like I.e. “com.paragon-software.ntfs.notification-agent” by Paragon Software GmbH, and “org.macosforge.xquartz.startx” ==> Install date Xquartz is 2016-10-26 02:57:09. So, Xquartz has to go since is outdated - I week before I thought it was removed, but… I have no explanation on how it got back.

Hope this helped. Regards.

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Answer 4

JasonSES

Level 1

4 points

Oct 29, 2019 8:46 PM in response to ProfessorScott

Also having this issue.

OSX Catalina 10.15.1 (19B88)

Mac Pro (Late 2013)

3.7 GHz Quad-Core Intel Xeon E5

32 GB 1866 MHz DDR3

AMD FirePro D300 2 GB

I'm running 3 monitors and crashes constantly since upgrading to Catalina; Mojave worked perfectly.

Have done a complete wipe. Re-partitioned. Re-installed OSX Catalina. New username. SMC Reset. And all other suggestions in this app. I do not have Time Machine or Chrome installed.

Crashes seem to be happening when the screensaver tries to put the monitors to sleep. The "Spin Report" says:

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

In the process WindowServer at /System/Library/PrivateFrameworks/SkyLight.framework/Resources/WindowServer I see:

"(blocked by turnstile with priority 92 waiting for ScreenSaverEngine [858] thread 0x49b1) 1-10"

Relevant part of log attached.

SpinReport / Crash Report

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>

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Answer 5

Jan 19, 2020 2:22 PM in response to ProfessorScott

Naturally I crashed not 2 hours after posting this. Paid more close attention to when it crashed and it was in Google Sheets. Found this link that may point the blame at Google Drive File Stream: https://discussions.apple.com/thread/250743564

I also removed a DisplayLink driver I shouldn't need any longer. I've been doing a bit with Google Sheets and there may be a cause here.

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Answer 6

Jan 27, 2020 3:15 AM in response to Rentsch2

I'm also experiencing crashes (watchdog time out etc.) after unplugging the external monitor (connected via a Apple USB-C HDMI converter). After multiple crashes and much debugging of different setups, it seems to me like Catalina is not updating the Window management to detect the external display is being unplugged as I can see that the windows are not moving into my Macbook screen and it thinks there's still an external display connected (as seen in Settings>Display). I'm downgrading back to Mojave via a tedious erase/restore. I've reported this here:

https://discussions.apple.com/thread/251048307?page=1

I've also filed a bug report via Apple Feedback (link won't work as Feedback is not an open system) https://feedbackassistant.apple.com/feedback/7547651

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Answer 7

Jan 31, 2020 1:51 PM in response to ProfessorScott

So a work around (until Apple realizes and fixes this problem) that actually worked for me was to use an app to prevent Mac from going to sleep. I found Amphetamine really useful with bunch of really awesome feature and it's totally free.

Note: I tried Mac's built-in way to prevent it from sleeping automatically (when connected to power), but it didn't work!

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Answer 8

LD150

Level 10

92,297 points

Mar 31, 2020 2:03 PM in response to masterdj

Take your backups before upgrading.

If you use Time Machine (TM) see https://support.apple.com/en-us/HT204904 then select the Restore from Time Machine Backup option

or

if you use Carbon copy Cloner (CCC) to create bootable backups then boot into the clone and clone the opppsite way.

3-2-1 backup regime means typically having three backup disks, use CCC on two, one of which kept off site (like the garage) and use TM on the third.

Basic disaster recovery.

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Answer 9

LD150

Level 10

92,297 points

Apr 19, 2020 10:44 PM in response to neozeed

I would be tempted to use recovery with the Command (⌘)-R option and install the OS that originly came with it then if you have installed Mojave on the past it should be available on the app store

https://support.apple.com/en-us/HT204904

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Answer 10

LD150

Level 10

92,297 points

May 4, 2020 12:13 AM in response to clcormack

No that is not the case necessarily. Start your own thread and someone can advise you of your options and be rewarded for the effort.

I would start by installing the "combo" update 10.15.4

https://support.apple.com/downloads/macos

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Answer 11

May 10, 2020 10:35 AM in response to ProfessorScott

I experienced similar crashes while setting up new 2020 MacBook Air macOS Catalina 10.15.4 (19E287).

I may have solved the problem- it involved Photos uploading many photos to iClould during set up, of all things.

More in this thread:

https://discussions.apple.com/thread/251353584

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Answer 12

LD150

Level 10

92,297 points

Jun 4, 2020 8:38 AM in response to Peter Galvin

"...Everyone in general should get the Apple Feedback Assistant app and submit this problem. The more submitted the more they might pay attention..."

No, that is only available to those signed up to the Beta or dev programs and intended for those test results.

Everyone in general can report bugs at

https://www.apple.com/feedback/

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Answer 13

Jun 11, 2020 6:49 AM in response to Monkeyman8

MDS is Apples Spotlight service which indexes stored content to make your searches faster. A few Apple Support threads reveal when the spotlight index is corrupt the the device can freeze and reboot more often if plugged into power and even more often if you have an external monitor since MDS appears involved with putting monitors to sleep. This also fit for users observing their fans speed up during the freeze before reboot due to the built up heat from the i/o disk activity with the corrupt metadata.

If you have time please try turning off the Spotlight Indexing for your main drive and any additional drives including the Drobo drive someone mentioned having earlier in this thread. Also disable Spotlight indexing for your USB storage sticks you might have connected during these crashes. After you disable the Spotlight indexing then any corrupt metadata (potentially causing your freezing and hanging) will be gone. You can run without Spotlight indexing but your disk searches would be slow so feel free to turn Spotlight Indexing back on which will rebuild the metadata by indexing content on every storage device you connect.

The steps are really easy to disable and then enable Spotlight indexing. They are listed in this short Apple Support document on how to rebuild your Spotlight index https://support.apple.com/en-us/HT201716

If you have three minutes then rebuild your Spotlight index.

This appears to have worked for me.

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Answer 14

jispms

Level 1

4 points

Aug 25, 2020 6:30 AM in response to ProfessorScott

error after Catalina upgrade

panic(cpu 2 caller 0xffffff7f8b9dead5): userspace watchdog timeout: no successful checkins from com.apple.logd in 120 seconds service returned not alive with context : unresponsive dispatch queue(s): com.apple.firehose.drain-mem, com.apple.firehose.io-wl service: com.apple.logd, total successful checkins since wake (1030 seconds ago): 92, last successful checkin: 120 seconds ago service: com.apple.WindowServer, total successful checkins since wake (1030 seconds ago): 104, last successful checkin: 0 seconds ago Backtrace (CPU 2), Frame : Return Address 0xffffff922658b720 : 0xffffff800a31a65d 0xffffff922658b770 : 0xffffff800a454a75 0xffffff922658b7b0 : 0xffffff800a4465fe 0xffffff922658b800 : 0xffffff800a2c0a40 0xffffff922658b820 : 0xffffff800a319d27 0xffffff922658b920 : 0xffffff800a31a117 0xffffff922658b970 : 0xffffff800aac1b28 0xffffff922658b9e0 : 0xffffff7f8b9dead5 0xffffff922658b9f0 : 0xffffff7f8b9de7fa 0xffffff922658ba10 : 0xffffff800aa539ce 0xffffff922658ba60 : 0xffffff7f8b9ddcfe 0xffffff922658bb60 : 0xffffff800aa5cbf3 0xffffff922658bca0 : 0xffffff800a4035e2 0xffffff922658bdb0 : 0xffffff800a3203c8 0xffffff922658be10 : 0xffffff800a2f6d15 0xffffff922658be70 : 0xffffff800a30db22 0xffffff922658bf00 : 0xffffff800a42c065 0xffffff922658bfa0 : 0xffffff800a2c1226 Kernel Extensions in backtrace: com.apple.driver.watchdog(1.0)[832CC890-EE61-33E0-8FD4-8D354BCD0921]@0xffffff7f8b9dd000->0xffffff7f8b9e5fff BSD process name corresponding to current thread: watchdogd Mac OS version: 19G2021 Kernel version: Darwin Kernel Version 19.6.0: Thu Jun 18 20:49:00 PDT 2020; root:xnu-6153.141.1~1/RELEASE_X86_64 Kernel UUID: 1D3A0F3D-D908-397B-BD16-8F48C0823A2E Kernel slide: 0x000000000a000000 Kernel text base: 0xffffff800a200000 __HIB text base: 0xffffff800a100000 System model name: MacBookPro10,1 (Mac-C3EC7CD22292981F) System shutdown begun: NO Panic diags file available: YES (0x0) System uptime in nanoseconds: 5159115218075 last loaded kext at 4130705513972: >!UTCKeyEventDriver 255 (addr 0xffffff7f8dedd000, size 12288) last unloaded kext at 4439364217552: >usb.cdc 5.0.0 (addr 0xffffff7f8ded3000, size 28672) loaded kexts: @filesystems.smbfs 3.4.4 >AudioAUUC 1.70 @fileutil 20.036.15 >AGPM 111.4.4 >!APlatformEnabler 2.7.0d0 >X86PlatformShim 1.0.0 @filesystems.autofs 3.0 >!AMikeyHIDDriver 131 >!AMikeyDriver 283.15 >!AHDA 283.15 @AGDCPluginDisplayMetrics 5.2.6 >!AHV 1 |IOUserEthernet 1.0.1 >!AUpstreamUserClient 3.6.8 |IO!BSerialManager 7.0.6f7 >!A!IHD4000Graphics 14.0.7 >pmtelemetry 1 @Dont_Steal_Mac_OS_X 7.0.0 >!A!IFramebufferCapri 14.0.7 >!A!ISlowAdaptiveClocking 4.0.0 @GeForce 14.0.0 >AGDCBacklightControl 5.2.6 >!AMuxControl 5.2.6 >!AMCCSControl 1.14 >eficheck 1 >!ASMCLMU 212 >!ALPC 3.1 >!AThunderboltIP 3.1.4 >!ASMCPDRC 1.0.0 >!UTCKeyboard 255 >!UTCButtons 255 >!AVirtIO 1.0 @filesystems.hfs.kext 522.100.5 @!AFSCompression.!AFSCompressionTypeDataless 1.0.0d1 @BootCache 40 @!AFSCompression.!AFSCompressionTypeZlib 1.0.0 @filesystems.apfs 1412.141.1 >!ASDXC 1.7.7 @private.KextAudit 1.0 >AirPort.Brcm4360 1400.1.1 >!AAHCIPort 341.140.1 >!ASmartBatteryManager 161.0.0 >!ARTC 2.0 >!AACPIButtons 6.1 >!AHPET 1.8 >!ASMBIOS 2.1 >!AACPIEC 6.1 >!AAPIC 1.7 >!A!ICPUPowerManagementClient 222.0.0 $!AImage4 1 @nke.applicationfirewall 303 $TMSafetyNet 8 @!ASystemPolicy 2.0.0 >!A!ICPUPowerManagement 222.0.0 |EndpointSecurity 1 @kext.triggers 1.0 >DspFuncLib 283.15 @kext.OSvKernDSPLib 529 |IOAVB!F 850.1 @nvidia.driver.NVDAGK100Hal 14.0.0 >X86PlatformPlugin 1.0.0 @!AGPUWrangler 5.2.6 |IOSlowAdaptiveClocking!F 1.0.0 |IOAccelerator!F2 438.7.3 @nvidia.driver.NVDAResman 14.0.0 >!AHDA!C 283.15 |IOHDA!F 283.15 >!ABacklightExpert 1.1.0 |IONDRVSupport 576.1 @!AGraphicsDeviceControl 5.2.6 >!AGraphicsControl 5.2.6 >!ASMBus!C 1.0.18d1 |IOGraphics!F 576.1 >!ASMBusPCI 1.0.14d1 >IOPlatformPlugin!F 6.0.0d8 @plugin.IOgPTPPlugin 840.3 |Broadcom!BHost!CUSBTransport 7.0.6f7 |IO!BHost!CUSBTransport 7.0.6f7 |IO!BHost!CTransport 7.0.6f7 |IO!B!F 7.0.6f7 |IO!BPacketLogger 7.0.6f7 >!UMultitouch 264 >usb.IOUSBHostHIDDevice 1.2 >usb.networking 5.0.0 >usb.!UHostCompositeDevice 1.2 >usb.!UHub 1.2 |IOAudio!F 300.2 @vecLib.kext 1.2.0 |IOSerial!F 11 @filesystems.hfs.encodings.kext 1 |IOSurface 269.11 >!AThunderboltDPInAdapter 6.2.6 >!AThunderboltDPAdapter!F 6.2.6 >!AThunderboltPCIDownAdapter 2.5.4 >!AThunderboltNHI 5.8.6 |IOThunderbolt!F 7.6.1 |IOAHCIBlock!S 316.100.5 |IOEthernetAVB!C 1.1.0 |IO80211!F 1200.12.2b1 |IOSkywalk!F 1 >mDNSOffloadUserClient 1.0.1b8 >corecapture 1.0.4 |IOAHCI!F 290.0.1 >usb.!UEHCIPCI 1.2 >usb.!UEHCI 1.2 >usb.!UXHCIPCI 1.2 >usb.!UXHCI 1.2 |IOUSB!F 900.4.2 >!AEFINVRAM 2.1 >!AEFIRuntime 2.1 |IOSMBus!F 1.1 |IOHID!F 2.0.0 $quarantine 4 $sandbox 300.0 @kext.!AMatch 1.0.0d1 >DiskImages 493.0.0 >!AFDEKeyStore 28.30 >!AEffaceable!S 1.0 >!ASSE 1.0 >!AKeyStore 2 >!UTDM 489.120.1 |IOSCSIBlockCommandsDevice 422.120.3 >!ACredentialManager 1.0 >KernelRelayHost 1 >!ASEPManager 1.0.1 >IOSlaveProcessor 1 |IOUSBMass!SDriver 157.140.1 |IOSCSIArchitectureModel!F 422.120.3 |IO!S!F 2.1 |IOUSBHost!F 1.2 >!UHostMergeProperties 1.2 >usb.!UCommon 1.0 >!ABusPower!C 1.0 |CoreAnalytics!F 1 >!AMobileFileIntegrity 1.0.5 @kext.CoreTrust 1 |IOTimeSync!F 840.3 |IONetworking!F 3.4 |IOReport!F 47 >!AACPIPlatform 6.1 >!ASMC 3.1.9 >watchdog 1 |IOPCI!F 2.9 |IOACPI!F 1.4 @kec.pthread 1 @kec.Libm 1 @kec.corecrypto 1.0

I installed Catalina yesterday and my macbook pro has crashed 10 times in less than 24 hours, how do i fix this problem,PLEASE HELP!!!. the first error reports looked like this(omitted The rest of report) started like this:

panic(cpu 0 caller 0xffffff7f8b3053c6): "AppleAHCIDiskDriver::PolledIO, trying to do polled IO with polled command in flight, inPolledIOSelector = 0x00000004\n"@/AppleInternal/BuildRoot/Library/Caches/com.apple.xbs/Sources/IOAHCIBlockStorage/IOAHCIBlockStorage-316.100.5/AppleAHCIDiskDriver.cpp:

please help

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Answer 15

Feb 24, 2021 7:52 AM in response to Daniquito

Your problem is most likely unrelated to this thread, but what version of macOS are you using?

Apple menu -> About This Mac

It really looks like a graphics hardware and/or software related issue to me. The ”dot” system updates for macOS usually contain graphics driver updates, so in that sense it's always good to install the latest update for the macOS version one is using.

Also, try to run the hardware diagnostics and see if that comes up with anything:

https://support.apple.com/en-us/HT202731

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Since installing Catalina yesterday, multiple crashes from userspace watchdog timeout

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