Recently upgraded my Macbook to Catalina OS v10.15.1 and have since been experiencing performance problems with the Simulator in Xcode (v11.2.1).
To be precise, the simulator is working OK, but my Macbook fan starts running high immediately after launching the simulator, then the laptop starts to get very warm. This follows up with a Crash Report from process searchd (below). The process Launchd_sim is also taking lots of CPU processing according to Activity Monitor.
Strangely, the simulator works fine but the Macbook fan is running abnormally high and is very hot. I did not have this problem prior to going to Catalina OS.
When quitting the simulator, the fan slows to normal speed and the machine seems to cool down. This situation is repeatable. Anyone else seen this problem? Note also when using a physical iPhone device instead of the simulator, I do not get any crash nor any such similar symptoms.
Simulator version is 11.2.1 (SimulatorApp-912.4 SimulatorKit-570.3 CoreSimulator-681.15).
From Console's (partial) Crash Report:
Process: searchd [11382]
Path: /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Library/Developer/CoreSimulator/Profiles/Runtimes/iOS.simruntime/Contents/Resources/RuntimeRoot/System/Library/PrivateFrameworks/Search.framework/searchd
Identifier: searchd
Version: 2073.1
Code Type: X86-64 (Native)
Parent Process: launchd_sim [11219]
Responsible: SimulatorTrampoline [1176]
User ID: 501
Date/Time: 2019-12-15 10:37:31.277 +0100
OS Version: Mac OS X 10.15.1 (19B88)
Report Version: 12
Anonymous UUID: 19B5ACA8-D061-41E2-1CD0-65EBEB8D3499
Sleep/Wake UUID: 44265181-901D-4D25-AF95-C778F4B5F151
Time Awake Since Boot: 30000 seconds
Time Since Wake: 1800 seconds
System Integrity Protection: enabled
Crashed Thread: 1 Dispatch queue: com.apple.metadata.spotlightindex.Flush scheduler for index at /Users/jeffs_itunes/Library/Developer/CoreSimulator/Devices/4B8D
Exception Type: EXC_BAD_ACCESS (SIGSEGV)
Exception Codes: KERN_INVALID_ADDRESS at 0x0000000200000010
Exception Note: EXC_CORPSE_NOTIFY
Termination Signal: Segmentation fault: 11
Termination Reason: Namespace SIGNAL, Code 0xb
Terminating Process: exc handler [11382]
VM Regions Near 0x200000010:
__LINKEDIT 000000010d769000-000000010d7a1000 [ 224K] r--/r-- SM=COW /usr/lib/dyld
-->
STACK GUARD 0000700006f23000-0000700006f24000 [ 4K] ---/rwx SM=NUL stack guard for thread 1
Application Specific Information:
CoreSimulator 681.15 - Device: iPhone 8 (4B8DA2C2-A685-4076-8B21-3FF303DDEFC5) - Runtime: iOS 13.2 (17B102) - DeviceType: iPhone 8
Thread 0:: Dispatch queue: com.apple.main-thread
0 libsystem_kernel.dylib 0x00007fff51b54166 mach_msg_trap + 10
1 libsystem_kernel.dylib 0x00007fff51b546cc mach_msg + 60
2 com.apple.CoreFoundation 0x00007fff23bb1aa5 __CFRunLoopServiceMachPort + 197
3 com.apple.CoreFoundation 0x00007fff23bac7c7 __CFRunLoopRun + 1671
4 com.apple.CoreFoundation 0x00007fff23****16 CFRunLoopRunSpecific + 438
5 com.apple.Foundation 0x00007fff2574b87f -[NSRunLoop(NSRunLoop) runMode:beforeDate:] + 211
6 searchd 0x000000010169ed5a 0x101692000 + 52570
7 libdyld.dylib 0x00007fff51a1dc25 start + 1
Thread 1 Crashed:: Dispatch queue: com.apple.metadata.spotlightindex.Flush scheduler for index at /Users/jeffs_itunes/Library/Developer/CoreSimulator/Devices/4B8D
0 libsystem_platform.dylib 0x00007fff51bf6732 _platform_strlen + 18
1 libsystem_c.dylib 0x00007fff51ac73f2 strdup + 18
2 com.apple.spotlight.SpotlightDaemon 0x00007fff44086956 SDTransactionDone + 17
3 com.apple.spotlight.SpotlightDaemon 0x00007fff4405c964 syncFinished + 36
4 com.apple.mobilespotlight.index 0x00007fff3c8c4ed9 delayed_op_final + 15
5 com.apple.mobilespotlight.index 0x00007fff3c8bd05f flush_runLoop + 105
6 com.apple.mobilespotlight.index 0x00007fff3c910547 work_fun + 634
7 libdispatch.dylib 0x00007fff519eb265 _dispatch_block_async_invoke2 + 83
8 libdispatch.dylib 0x00007fff519de7b9 _dispatch_client_callout + 8
9 libdispatch.dylib 0x00007fff519e4526 _dispatch_lane_serial_drain + 707
10 libdispatch.dylib 0x00007fff519e4f93 _dispatch_lane_invoke + 443
11 libdispatch.dylib 0x00007fff519e4394 _dispatch_lane_serial_drain + 305
12 libdispatch.dylib 0x00007fff519e4f93 _dispatch_lane_invoke + 443
13 libdispatch.dylib 0x00007fff519e5e90 _dispatch_workloop_invoke + 992
14 libdispatch.dylib 0x00007fff519eeff9 _dispatch_workloop_worker_thread + 626
15 libsystem_pthread.dylib 0x00007fff51c0171b _pthread_wqthread + 290
16 libsystem_pthread.dylib 0x00007fff51c0157b start_wqthread + 15
Thread 2:: Dispatch queue: com.apple.searchd.createEncryptedRankingBackupQueue
0 libsystem_kernel.dylib 0x00007fff51b56a16 __ulock_wait + 10
1 libdispatch.dylib 0x00007fff519defb4 _dlock_wait + 44
2 libdispatch.dylib 0x00007fff519df23f _dispatch_group_wait_slow + 43
3 searchd 0x00000001016adeb8 0x101692000 + 114360
4 libdispatch.dylib 0x00007fff519dd848 _dispatch_call_block_and_release + 12
5 libdispatch.dylib 0x00007fff519de7b9 _dispatch_client_callout + 8
6 libdispatch.dylib 0x00007fff519e466d _dispatch_lane_serial_drain + 1034
7 libdispatch.dylib 0x00007fff519e4f5c _dispatch_lane_invoke + 388
8 libdispatch.dylib 0x00007fff519eeff9 _dispatch_workloop_worker_thread + 626
9 libsystem_pthread.dylib 0x00007fff51c0171b _pthread_wqthread + 290
10 libsystem_pthread.dylib 0x00007fff51c0157b start_wqthread + 15
Thread 3:: Dispatch queue: com.apple.searchd.application.localization.updates
0 libxpc.dylib 0x00007fff51c3ebfd xpc_data_create + 1
1 libxpc.dylib 0x00007fff51c4189b xpc_dictionary_set_data + 27
2 libsystem_trace.dylib 0x00007fff51c1aff5 _os_activity_stream_entry_encode + 1002
3 libsystem_trace.dylib 0x00007fff51c1aa3b _os_activity_stream_reflect + 312
4 libsystem_trace.dylib 0x00007fff51c26399 _os_log_impl_stream + 564
5 libsystem_trace.dylib 0x00007fff51c2590f _os_log_impl_flatten_and_send + 6347
6 libsystem_trace.dylib 0x00007fff51c24035 _os_log + 162
7 libsystem_trace.dylib 0x00007fff51c26923 _os_log_impl + 9
8 com.apple.CoreSpotlight 0x00007fff24f5c4b7 __initEntitlements_block_invoke + 406
9 libdispatch.dylib 0x00007fff519de7b9 _dispatch_client_callout + 8
10 libdispatch.dylib 0x00007fff519df9e5 _dispatch_once_callout + 20
11 com.apple.CoreSpotlight 0x00007fff24f5c95a hasInternalCSEntitlement + 40
12 com.apple.CoreServices 0x00007fff24f20014 -[CSSearchableItem setExpirationDate:] + 40
13 com.apple.CoreServices 0x00007fff24f1f0e9 -[CSSearchableItem initWithUniqueIdentifier:domainIdentifier:attributeSet:] + 399
14 searchd 0x00000001016f17f7 0x101692000 + 391159
15 searchd 0x00000001016f3720 0x101692000 + 399136
16 libdispatch.dylib 0x00007fff519dd848 _dispatch_call_block_and_release + 12
17 libdispatch.dylib 0x00007fff519de7b9 _dispatch_client_callout + 8
18 libdispatch.dylib 0x00007fff519e4526 _dispatch_lane_serial_drain + 707
19 libdispatch.dylib 0x00007fff519e4f93 _dispatch_lane_invoke + 443
20 libdispatch.dylib 0x00007fff519eeff9 _dispatch_workloop_worker_thread + 626
21 libsystem_pthread.dylib 0x00007fff51c0171b _pthread_wqthread + 290
22 libsystem_pthread.dylib 0x00007fff51c0157b start_wqthread + 15
Thread 4:
0 libsystem_pthread.dylib 0x00007fff51c0156c start_wqthread + 0
Thread 5:
0 libsystem_pthread.dylib 0x00007fff51c0156c start_wqthread + 0
Thread 6:: Dispatch queue: PKPlugIn start (com.apple.FileProvider.FPSpotlightIndexer)
0 libsystem_kernel.dylib 0x00007fff51b56a16 __ulock_wait + 10
1 libsystem_platform.dylib 0x00007fff51bf7c8b _os_unfair_lock_lock_slow + 160
2 libxpc.dylib 0x00007fff51c46c06 _xpc_uncork_domain + 73
3 com.apple.pluginkit.framework 0x00007fff41ab43b0 0x7fff41ab1000 + 13232
4 libdispatch.dylib 0x00007fff519dd848 _dispatch_call_block_and_release + 12
5 libdispatch.dylib 0x00007fff519de7b9 _dispatch_client_callout + 8
6 libdispatch.dylib 0x00007fff519e4526 _dispatch_lane_serial_drain + 707
7 libdispatch.dylib 0x00007fff519e4f5c _dispatch_lane_invoke + 388
8 libdispatch.dylib 0x00007fff519eeff9 _dispatch_workloop_worker_thread + 626
9 libsystem_pthread.dylib 0x00007fff51c0171b _pthread_wqthread + 290
10 libsystem_pthread.dylib 0x00007fff51c0157b start_wqthread + 15
Thread 7:: Dispatch queue: Set Attributes scheduler for spindle 0
0 libsystem_kernel.dylib 0x00007fff51b55c22 kevent_id + 10
1 libdispatch.dylib 0x00007fff519fae29 _dispatch_kq_poll + 242
2 libdispatch.dylib 0x00007fff519faa2e _dispatch_kq_drain + 146
3 libdispatch.dylib 0x00007fff519fa943 _dispatch_event_loop_drain + 307
4 libdispatch.dylib 0x00007fff519e5d19 _dispatch_workloop_invoke + 617
5 libdispatch.dylib 0x00007fff519eeff9 _dispatch_workloop_worker_thread + 626
6 libsystem_pthread.dylib 0x00007fff51c0171b _pthread_wqthread + 290
7 libsystem_pthread.dylib 0x00007fff51c0157b start_wqthread + 15
Thread 8:
0 libsystem_kernel.dylib 0x00007fff51b54166 mach_msg_trap + 10
1 libsystem_kernel.dylib 0x00007fff51b546cc mach_msg + 60
2 com.apple.mobilespotlight.index 0x00007fff3c9d4e0c _handleExceptions + 114
3 libsystem_pthread.dylib 0x00007fff51c04d36 _pthread_start + 125
4 libsystem_pthread.dylib 0x00007fff51c0158f thread_start + 15
Thread 9:
0 libsystem_pthread.dylib 0x00007fff51c0156c start_wqthread + 0
Thread 10:: Dispatch queue: com.apple.searchd.workq
0 libsystem_kernel.dylib 0x00007fff51b54166 mach_msg_trap + 10
1 libsystem_kernel.dylib 0x00007fff51b546cc mach_msg + 60
2 libsystem_notify.dylib 0x00007fff51bf15ab notify_check + 290
3 com.apple.CoreServices 0x00007fff24e1e5d4 _LSDatabaseNotificationCheck() + 132
4 com.apple.CoreServices 0x00007fff24e1bf7d _LSDatabaseNeedsUpdate(_LSDatabase*) + 53
5 com.apple.CoreServices 0x00007fff24e1b19d _LSContextInitReturningError + 293
6 com.apple.CoreServices 0x00007fff24e1b8a1 _LSContextInit + 49
7 com.apple.CoreServices 0x00007fff24df3b81 +[LSApplicationProxy applicationProxyForBundleType:identifier:isCompanion:URL:itemID:bundleUnit:] + 201
8 com.apple.CoreServices 0x00007fff24df3f37 +[LSApplicationProxy applicationProxyForIdentifier:] + 32
9 searchd 0x00000001016dea37 0x101692000 + 313911
10 libdispatch.dylib 0x00007fff519dd848 _dispatch_call_block_and_release + 12
11 libdispatch.dylib 0x00007fff519de7b9 _dispatch_client_callout + 8
12 libdispatch.dylib 0x00007fff519e4526 _dispatch_lane_serial_drain + 707
13 libdispatch.dylib 0x00007fff519e4f93 _dispatch_lane_invoke + 443
14 libdispatch.dylib 0x00007fff519eeff9 _dispatch_workloop_worker_thread + 626
15 libsystem_pthread.dylib 0x00007fff51c0171b _pthread_wqthread + 290
16 libsystem_pthread.dylib 0x00007fff51c0157b start_wqthread + 15
Thread 11:
0 libsystem_pthread.dylib 0x00007fff51c0156c start_wqthread + 0
Thread 12:
0 libsystem_pthread.dylib 0x00007fff51c0156c start_wqthread + 0
Thread 13:
0 libsystem_pthread.dylib 0x00007fff51c0156c start_wqthread + 0
Thread 14:
0 libsystem_pthread.dylib 0x00007fff51c0156c start_wqthread + 0
Thread 15:
0 libsystem_pthread.dylib 0x00007fff51c0156c start_wqthread + 0
Thread 16:: Dispatch queue: PKPlugIn start (com.apple.eventkitui.spotlight)
0 libsystem_kernel.dylib 0x00007fff51b54166 mach_msg_trap + 10
1 libsystem_kernel.dylib 0x00007fff51b546cc mach_msg + 60
2 libxpc.dylib 0x00007fff51c4ca35 _xpc_pipe_routine + 348
3 libxpc.dylib 0x00007fff51c4cc04 xpc_pipe_routine_with_flags + 49
4 libxpc.dylib 0x00007fff51c35cc1 _xpc_interface_routine + 169
5 libxpc.dylib 0x00007fff51c46b97 _xpc_bootstrap_services + 115
6 libxpc.dylib 0x00007fff51c46ee3 _xpc_uncork_domain + 806
7 com.apple.pluginkit.framework 0x00007fff41ab43b0 0x7fff41ab1000 + 13232
8 libdispatch.dylib 0x00007fff519dd848 _dispatch_call_block_and_release + 12
9 libdispatch.dylib 0x00007fff519de7b9 _dispatch_client_callout + 8
10 libdispatch.dylib 0x00007fff519e4526 _dispatch_lane_serial_drain + 707
11 libdispatch.dylib 0x00007fff519e4f5c _dispatch_lane_invoke + 388
12 libdispatch.dylib 0x00007fff519eeff9 _dispatch_workloop_worker_thread + 626
13 libsystem_pthread.dylib 0x00007fff51c0171b _pthread_wqthread + 290
14 libsystem_pthread.dylib 0x00007fff51c0157b start_wqthread + 15
Thread 17:
0 libsystem_pthread.dylib 0x00007fff51c0156c start_wqthread + 0
Thread 18:
0 libsystem_pthread.dylib 0x00007fff51c0156c start_wqthread + 0
Thread 1 crashed with X86 Thread State (64-bit):
rax: 0x00000000519df1c0 rbx: 0x00007ff1f1540650 rcx: 0x0000000200000013 rdx: 0x0000000200000013
rdi: 0x0000000200000010 rsi: 0x0000000000000000 rbp: 0x0000700006fa3450 rsp: 0x0000700006fa3450
r8: 0x0000003000000000 r9: 0x0060000000000000 r10: 0xfffffff700000000 r11: 0x0000000700000000
r12: 0x00007ff1f15152c0 r13: 0x00007fff842cf120 r14: 0x0000000200000013 r15: 0x0000000200000002
rip: 0x00007fff51bf6732 rfl: 0x0000000000010202 cr2: 0x000000010a779a93
Logical CPU: 0
Error Code: 0x02000177
Trap Number: 133
(omitted binary images)
xternal Modification Summary:
Calls made by other processes targeting this process:
task_for_pid: 0
thread_create: 0
thread_set_state: 0
Calls made by this process:
task_for_pid: 0
thread_create: 0
thread_set_state: 0
Calls made by all processes on this machine:
task_for_pid: 2345146
thread_create: 0
thread_set_state: 426
VM Region Summary:
ReadOnly portion of Libraries: Total=588.9M resident=0K(0%) swapped_out_or_unallocated=588.9M(100%)
Writable regions: Total=144.6M written=0K(0%) resident=0K(0%) swapped_out=0K(0%) unallocated=144.6M(100%)
VIRTUAL REGION
REGION TYPE SIZE COUNT (non-coalesced)
=========== ======= =======
Activity Tracing 256K 1
Dispatch continuations 12.0M 12
Kernel Alloc Once 8K 1
MALLOC 110.8M 74
MALLOC guard page 48K 12
Memory Tag 241 16K 2
Memory Tag 243 384K 2
Memory Tag 244 3328K 7
Memory Tag 250 96K 2
STACK GUARD 56.1M 19
Stack 17.1M 20
VM_ALLOCATE 200K 1
__DATA 9962K 356
__DATA_CONST 39.5M 349
__DATA_DIRTY 10K 10
__FONT_DATA 4K 1
__LINKEDIT 290.3M 4
__OBJC_RO 42.7M 1
__OBJC_RW 2128K 1
__TEXT 298.6M 359
__UNICODE 564K 1
mapped file 134.7M 147
shared memory 24K 3
=========== ======= =======
TOTAL 1.0G 1385
