It is hard to reproduce this one, but seems like I am crashing sporadically. I have approximately 12 lists syncing and moved the sync interval to an hour now to maybe give it plenty of time to make sure I don’t step on myself, but here are the latest logs from the crash report. I have reminderbridge running on my Mac Mini M2 Pro and it stays always on.
Translated Report (Full Report Below)
Process: ReminderBridge [22006]
Path: /Applications/ReminderBridge.app/Contents/MacOS/ReminderBridge
Identifier: aeriform.ReminderBridge
Version: 1.4.3026 (26)
Code Type: ARM-64 (Native)
Role: Background
Parent Process: launchd [1]
Coalition: aeriform.ReminderBridge [36310]
User ID: 501
Date/Time: 2026-01-12 13:58:54.0073 -0500
Launch Time: 2026-01-12 10:46:31.3605 -0500
Hardware Model: Mac14,12
OS Version: macOS 26.3 (25D5087f)
Release Type: User
Crash Reporter Key: 7CF60D4D-5B37-3FE8-1E00-91507822E459
Incident Identifier: E26E60A7-8302-4254-99AB-B168F0C76F96
Time Awake Since Boot: 310000 seconds
System Integrity Protection: enabled
Triggered by Thread: 0, Dispatch Queue: SQLQueue 0x100cfd4d0 for ReminderBridge.sqlite
Exception Type: EXC_BAD_ACCESS (SIGSEGV)
Exception Subtype: KERN_INVALID_ADDRESS at 0x00001c1eacfc34a0
Exception Codes: 0x0000000000000001, 0x00001c1eacfc34a0
Termination Reason: Namespace SIGNAL, Code 11, Segmentation fault: 11
Terminating Process: exc handler [22006]
VM Region Info: 0x1c1eacfc34a0 is not in any region.
REGION TYPE START - END [ VSIZE] PRT/MAX SHRMOD REGION DETAIL
UNUSED SPACE AT START
—>
UNUSED SPACE AT END
Thread 0 Crashed:: Dispatch queue: SQLQueue 0x100cfd4d0 for ReminderBridge.sqlite
0 libobjc.A.dylib 0x1989dfa28 objc_retain + 16
1 CoreData 0x1a094d5f4 _prepareResultsFromResultSet + 5068
2 CoreData 0x1a0939b60 newFetchedRowsForFetchPlan_MT + 1456
3 CoreData 0x1a0937370 _executeFetchRequest + 96
4 CoreData 0x1a0ab523c -[NSSQLFetchRequestContext executeRequestCore:] + 36
5 CoreData 0x1a0ba0ae0 -[NSSQLStoreRequestContext executeRequestUsingConnection:] + 272
6 CoreData 0x1a0bae648 __52-[NSSQLDefaultConnectionManager handleStoreRequest:]_block_invoke + 76
7 CoreData 0x1a0a69b68 __37-[NSSQLiteConnection performAndWait:]_block_invoke + 48
8 libdispatch.dylib 0x198c8bad4 _dispatch_client_callout + 16
9 libdispatch.dylib 0x198c81940 _dispatch_lane_barrier_sync_invoke_and_complete + 56
10 CoreData 0x1a0a69a34 -[NSSQLiteConnection performAndWait:] + 176
11 CoreData 0x1a0bae534 -[NSSQLDefaultConnectionManager handleStoreRequest:] + 248
12 CoreData 0x1a0a48bb8 -[NSSQLCore dispatchRequest:withRetries:] + 440
13 CoreData 0x1a0a4bfa0 -[NSSQLCore executeRequest:withContext:error:] + 3148
14 CoreData 0x1a0a15e70 __65-[NSPersistentStoreCoordinator executeRequest:withContext:error:]_block_invoke.531 + 5180
15 CoreData 0x1a0a09c48 -[NSPersistentStoreCoordinator routeHeavyweightBlock:] + 268
16 CoreData 0x1a0a14194 -[NSPersistentStoreCoordinator executeRequest:withContext:error:] + 1308
17 CoreData 0x1a099f32c -[NSManagedObjectContext executeFetchRequest:error:] + 780
18 CoreData 0x1a099c340 -[NSManagedObjectContext executeRequest:error:] + 364
19 CoreData 0x1a098eca8 NSManagedObjectContext.fetch(
+ 84
20 ReminderBridge 0x10064a56c 0x100640000 + 42348
21 ReminderBridge 0x1006bc58c 0x100640000 + 509324
22 ReminderBridge 0x1006bc5ac 0x100640000 + 509356
23 CoreData 0x1a09343fc developerSubmittedBlockToNSManagedObjectContextPerform + 252
24 libdispatch.dylib 0x198c8bad4 _dispatch_client_callout + 16
25 libdispatch.dylib 0x198c81a18 _dispatch_async_and_wait_invoke + 84
26 libdispatch.dylib 0x198c8bad4 _dispatch_client_callout + 16
27 libdispatch.dylib 0x198ca90d0 _dispatch_main_queue_drain.cold.5 + 812
28 libdispatch.dylib 0x198c80f48 _dispatch_main_queue_drain + 180
29 libdispatch.dylib 0x198c80e84 _dispatch_main_queue_callback_4CF + 44
30 CoreFoundation 0x198ef79a0 CFRUNLOOP_IS_SERVICING_THE_MAIN_DISPATCH_QUEUE + 16
31 CoreFoundation 0x198ecc7fc __CFRunLoopRun + 1944
32 CoreFoundation 0x198f86f3c _CFRunLoopRunSpecificWithOptions + 532
33 HIToolbox 0x1a5ac6790 RunCurrentEventLoopInMode + 316
34 HIToolbox 0x1a5ac9ab8 ReceiveNextEventCommon + 488
35 HIToolbox 0x1a5c53b64 _BlockUntilNextEventMatchingListInMode + 48
36 AppKit 0x19d7ebb5c _DPSBlockUntilNextEventMatchingListInMode + 236
37 AppKit 0x19d2e5e48 DPSNextEvent + 588
38 AppKit 0x19ddb09d4 -[NSApplication(NSEventRouting) nextEventMatchingEventMask:untilDate:inMode:dequeue:] + 688
39 AppKit 0x19ddb06e0 -[NSApplication(NSEventRouting) nextEventMatchingMask:untilDate:inMode:dequeue:] + 72
40 AppKit 0x19d2de780 -[NSApplication run] + 368
41 AppKit 0x19d2ca6dc NSApplicationMain + 880
42 SwiftUI 0x1cdd1e3ec specialized runApp(
+ 168
43 SwiftUI 0x1ce0d7b40 runApp(
+ 112
44 SwiftUI 0x1ce3a21d8 static App.main() + 224
45 ReminderBridge 0x1006bb994 0x100640000 + 506260
46 dyld 0x198a65d54 start + 7184
Thread 1:: com.apple.NSEventThread
0 libsystem_kernel.dylib 0x198debc34 mach_msg2_trap + 8
1 libsystem_kernel.dylib 0x198dfe028 mach_msg2_internal + 76
2 libsystem_kernel.dylib 0x198df498c mach_msg_overwrite + 484
3 libsystem_kernel.dylib 0x198debfb4 mach_msg + 24
4 CoreFoundation 0x198ecdbb0 __CFRunLoopServiceMachPort + 160
5 CoreFoundation 0x198ecc508 __CFRunLoopRun + 1188
6 CoreFoundation 0x198f86f3c _CFRunLoopRunSpecificWithOptions + 532
7 AppKit 0x19d375a34 _NSEventThread + 184
8 libsystem_pthread.dylib 0x198e2ec08 _pthread_start + 136
9 libsystem_pthread.dylib 0x198e29ba8 thread_start + 8
Thread 2:: com.apple.NSURLConnectionLoader
0 libsystem_kernel.dylib 0x198debc34 mach_msg2_trap + 8
1 libsystem_kernel.dylib 0x198dfe028 mach_msg2_internal + 76
2 libsystem_kernel.dylib 0x198df498c mach_msg_overwrite + 484
3 libsystem_kernel.dylib 0x198debfb4 mach_msg + 24
4 CoreFoundation 0x198ecdbb0 __CFRunLoopServiceMachPort + 160
5 CoreFoundation 0x198ecc508 __CFRunLoopRun + 1188
6 CoreFoundation 0x198f86f3c _CFRunLoopRunSpecificWithOptions + 532
7 CFNetwork 0x19f3c5c88 +[__CFN_CoreSchedulingSetRunnable _run:] + 416
8 Foundation 0x19a6e77a0 NSThread__start + 732
9 libsystem_pthread.dylib 0x198e2ec08 _pthread_start + 136
10 libsystem_pthread.dylib 0x198e29ba8 thread_start + 8
Thread 3:
Thread 4:: Dispatch queue: com.reminderbridge.syncQueue
0 libsystem_kernel.dylib 0x198dedae4 __ulock_wait + 8
1 libdispatch.dylib 0x198c73cec _dlock_wait + 56
2 libdispatch.dylib 0x198c73b0c _dispatch_thread_event_wait_slow + 56
3 libdispatch.dylib 0x198c81c20 DISPATCH_WAIT_FOR_QUEUE + 368
4 libdispatch.dylib 0x198c817d8 _dispatch_sync_f_slow + 148
5 CoreData 0x1a09a53f0 -[NSManagedObjectContext performBlockAndWait:] + 364
6 ReminderBridge 0x100648acc 0x100640000 + 35532
7 ReminderBridge 0x100660110 0x100640000 + 131344
8 ReminderBridge 0x10065c0dc 0x100640000 + 114908
9 ReminderBridge 0x100679990 0x100640000 + 235920
10 ReminderBridge 0x10065c014 0x100640000 + 114708
11 ReminderBridge 0x10064f834 0x100640000 + 63540
12 libdispatch.dylib 0x198c71b5c _dispatch_call_block_and_release + 32
13 libdispatch.dylib 0x198c8bad4 _dispatch_client_callout + 16
14 libdispatch.dylib 0x198c7a4e8 _dispatch_lane_serial_drain + 740
15 libdispatch.dylib 0x198c7afc4 _dispatch_lane_invoke + 388
16 libdispatch.dylib 0x198c85474 _dispatch_root_queue_drain_deferred_wlh + 292
17 libdispatch.dylib 0x198c84d6c _dispatch_workloop_worker_thread + 692
18 libsystem_pthread.dylib 0x198e2ae4c _pthread_wqthread + 292
19 libsystem_pthread.dylib 0x198e29b9c start_wqthread + 8
Thread 0 crashed with ARM Thread State (64-bit):
x0: 0x000000070ca1eb70 x1: 0xbd01cc0103a57c48 x2: 0x000000070b4800d0 x3: 0x0000000000000001
x4: 0x0000000000000008 x5: 0xffffffffffffffff x6: 0x0000000000000065 x7: 0xfffff0003ffff800
x8: 0x86cdb5c2933a001a x9: 0x86cdb5c2933a001a x10: 0x00000000a7baadb1 x11: 0x000000016f7bb4a0
x12: 0xffffffffffffffff x13: 0x000000070aca0410 x14: 0x0500000205c55589 x15: 0x0000000205c55588
x16: 0x989e9c1eacfc3486 x17: 0x00001c1eacfc3480 x18: 0x0000000000000000 x19: 0x000000070d62f450
x20: 0x0000000100cfe810 x21: 0x000000070b0e3468 x22: 0x000000070a407400 x23: 0x000000070b444c18
x24: 0x0000000000000010 x25: 0x000000000000003b x26: 0x0000000000000003 x27: 0x000000070a36fc60
x28: 0x000000000000000c fp: 0x000000016f7bbaa0 lr: 0x00000001a094d5f4
sp: 0x000000016f7bb530 pc: 0x00000001989dfa28 cpsr: 0x00001000
far: 0x00001c1eacfc34a0 esr: 0x92000005 (Data Abort) byte read Translation fault
Binary Images:
0x100640000 - 0x10076bfff aeriform.ReminderBridge (1.4.3026) /Applications/ReminderBridge.app/Contents/MacOS/ReminderBridge
0x100b08000 - 0x100b13fff libobjc-trampolines.dylib () /usr/lib/libobjc-trampolines.dylib
0x1096a4000 - 0x1096c3fff com.apple.security.csparser (3.0) <58a6c9c5-fb29-3a7e-99eb-eb2c75e1abde> /System/Library/Frameworks/Security.framework/Versions/A/PlugIns/csparser.bundle/Contents/MacOS/csparser
0x114544000 - 0x114d07fff com.apple.AGXMetalG14X (345.15) <4eb38666-abd7-3640-b30b-eeb663e7144e> /System/Library/Extensions/AGXMetalG14X.bundle/Contents/MacOS/AGXMetalG14X
0x1989d8000 - 0x198a2b48b libobjc.A.dylib () <824f777a-752d-3214-aaa3-343421254b19> /usr/lib/libobjc.A.dylib
0x1a0919000 - 0x1a0d03d9f com.apple.CoreData (120) <75f20652-b1ac-3636-b32c-b45c2c7923b9> /System/Library/Frameworks/CoreData.framework/Versions/A/CoreData
0x198c70000 - 0x198cb6e5f libdispatch.dylib () /usr/lib/system/libdispatch.dylib
0x198e6e000 - 0x1993b72bf com.apple.CoreFoundation (6.9) <3d5fc034-503a-3adb-b292-9474a4edf500> /System/Library/Frameworks/CoreFoundation.framework/Versions/A/CoreFoundation
0x1a5a05000 - 0x1a5d0827f com.apple.HIToolbox (2.1.1) /System/Library/Frameworks/Carbon.framework/Versions/A/Frameworks/HIToolbox.framework/Versions/A/HIToolbox
0x19d2c6000 - 0x19e9f4dbf com.apple.AppKit (6.9) <48e51efa-393a-314b-a19c-715c98b001c6> /System/Library/Frameworks/AppKit.framework/Versions/C/AppKit
0x1cdc0d000 - 0x1cf353d1f com.apple.SwiftUI (7.2.5.1.401) /System/Library/Frameworks/SwiftUI.framework/Versions/A/SwiftUI
0x198a5d000 - 0x198afbfff dyld () /usr/lib/dyld
0x0 - 0xffffffffffffffff ??? () <00000000-0000-0000-0000-000000000000> ???
0x198deb000 - 0x198e274af libsystem_kernel.dylib () <1eaaba37-2b13-3471-ba47-fac07768fe2c> /usr/lib/system/libsystem_kernel.dylib
0x198e28000 - 0x198e34abb libsystem_pthread.dylib (*) /usr/lib/system/libsystem_pthread.dylib
0x19f17a000 - 0x19f53527f com.apple.CFNetwork (1.0) <562dd869-3f54-34d8-a153-895f3e3a1a6d> /System/Library/Frameworks/CFNetwork.framework/Versions/A/CFNetwork
0x19a6c1000 - 0x19b66437f com.apple.Foundation (6.9) <0b543ab4-cb68-3e3e-930f-62023eef7ede> /System/Library/Frameworks/Foundation.framework/Versions/C/Foundation
External 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: 0
thread_create: 0
thread_set_state: 0
VM Region Summary:
ReadOnly portion of Libraries: Total=1.8G resident=0K(0%) swapped_out_or_unallocated=1.8G(100%)
Writable regions: Total=297.0M written=865K(0%) resident=689K(0%) swapped_out=192K(0%) unallocated=296.2M(100%)
VIRTUAL REGION
REGION TYPE SIZE COUNT (non-coalesced)
=========== ======= =======
Accelerate framework 128K 1
Activity Tracing 256K 1
AttributeGraph Data 1024K 1
CG image 16K 1
ColorSync 32K 2
CoreAnimation 1056K 55
CoreData Object IDs 4112K 2
CoreGraphics 32K 2
CoreUI image data 208K 4
Foundation 48K 2
Kernel Alloc Once 32K 1
MALLOC 274.0M 67
MALLOC guard page 3120K 4
SQLite page cache 2432K 19
STACK GUARD 56.1M 5
Stack 10.1M 5
VM_ALLOCATE 3472K 14
__AUTH 5794K 647
__AUTH_CONST 88.2M 1026
__CTF 824 1
__DATA 35.5M 978
__DATA_CONST 32.6M 1036
__DATA_DIRTY 8743K 881
__FONT_DATA 2352 1
__INFO_FILTER 8 1
__LINKEDIT 589.8M 5
__OBJC_RO 78.4M 1
__OBJC_RW 2571K 1
__TEXT 1.2G 1059
__TPRO_CONST 128K 2
mapped file 282.9M 49
page table in kernel 689K 1
shared memory 1984K 18
=========== ======= =======
TOTAL 2.7G 5893

