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I am trying to get message in thread info after crash. code is - (IBAction)btn_crash:(id)sender { os_activity_initiate("activity", OS_ACTIVITY_FLAG_DEFAULT, ^{ os_trace_debug("test tracing"); [self testtracing]; }); } but what i get is

**(lldb) thread info

thread #1: tid = 0x523d, 0x000000010b67a282 libsystem_kernel.dylib`__pthread_kill + 10, queue = 'com.apple.main-thread', stop reason = signal SIGABRT**

not the activity message please help.

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