I have received two strange crash reports from an iPad11,7 running iPadOS 15.1 and an iPad11,2 running iPadOS 15.2.
On both occasions, the crashed thread calls CFURLRequestSetMainDocumentURL
, which in turn calls _dispatch_source_set_runloop_timer_4CF
in libdispatch
, after which the application crashes with SIGSEGV
and SEGV_MAPERR
.
The crashed thread's call stack is displayed below. Full crash logs are attached as well. What could this be?
Exception Type: SIGSEGV
Exception Codes: SEGV_MAPERR at 0x21d
Crashed Thread: 20
Thread 20 Crashed:
0 libdispatch.dylib 0x00000001829e1784 _dispatch_source_set_runloop_timer_4CF + 36
1 CFNetwork 0x00000001834fc824 CFURLRequestSetMainDocumentURL + 2240
2 CFNetwork 0x00000001836b89a8 _CFNetworkErrorGetLocalizedDescription + 693652
3 CFNetwork 0x00000001834fdb1c CFURLRequestSetMainDocumentURL + 7096
4 CFNetwork 0x00000001834f3c34 CFURLRequestSetURL + 9668
5 libdispatch.dylib 0x00000001829ca914 _dispatch_call_block_and_release + 28
6 libdispatch.dylib 0x00000001829cc660 _dispatch_client_callout + 16
7 libdispatch.dylib 0x00000001829d3de4 _dispatch_lane_serial_drain + 668
8 libdispatch.dylib 0x00000001829d498c _dispatch_lane_invoke + 440
9 libdispatch.dylib 0x00000001829d5c74 _dispatch_workloop_invoke + 1792
10 libdispatch.dylib 0x00000001829df1a8 _dispatch_workloop_worker_thread + 652
11 libsystem_pthread.dylib 0x00000001f1eea0f4 _pthread_wqthread + 284
12 libsystem_pthread.dylib 0x00000001f1ee9e94 start_wqthread + 4