SUMMARY
 VgTs_Runnable syscall mach:50 (lwpid 771)

STEPS TO REPRODUCE
1. Cant share the binary sorry.

OBSERVED RESULT
==21848== Callgrind, a call-graph generating cache profiler
==21848== Copyright (C) 2002-2017, and GNU GPL'd, by Josef Weidendorfer et al.
==21848== Using Valgrind-3.14.0 and LibVEX; rerun with -h for copyright info
==21848== Command: fbsimctl launch com.facebook.Wilde
==21848== 
==21848== For interactive control, run 'callgrind_control -h'.
--21848-- UNKNOWN fcntl 98!
--21848-- UNKNOWN fcntl 98! (repeated 2 times)
--21848-- UNKNOWN fcntl 98! (repeated 4 times)
...
--21848-- WARNING: unhandled amd64-darwin syscall: mach:50
--21848-- You may be able to write your own handler.
--21848-- Read the file README_MISSING_SYSCALL_OR_IOCTL.
--21848-- Nevertheless we consider this a bug.  Please report
--21848-- it at http://valgrind.org/support/bug_reports.html.
eq_SyscallStatus:
  {78 0 43}
  {78 0 40}

valgrind: m_syswrap/syswrap-main.c:438 (Bool eq_SyscallStatus(UInt, SyscallStatus *, SyscallStatus *)): the 'impossible' happened.


EXPECTED RESULT
No crash

SOFTWARE/OS VERSIONS
Windows: 
macOS: 10.14.4
Linux/KDE Plasma: 
(available in About System)
KDE Plasma Version: 
KDE Frameworks Version: 
Qt Version: 

ADDITIONAL INFORMATION