https://bugs.kde.org/show_bug.cgi?id=512127

--- Comment #2 from Paul Floyd <[email protected]> ---
The main part of the problem is

==77391== Process terminating with default action of signal 11 (SIGSEGV)
==77391==  Access not within mapped region at address 0x70000639A41A
==77391==    at 0x1006754A3: _pthread_join_cleanup (in
/usr/lib/system/libsystem_pthread.dylib)
==77391==    by 0x10067786F: _pthread_join (in
/usr/lib/system/libsystem_pthread.dylib)
==77391==    by 0x100000BE5: main (thread_alloca.c:50)
==77391==  If you believe this happened as a result of a stack
==77391==  overflow in your program's main thread (unlikely but
==77391==  possible), you can try to increase the size of the
==77391==  main thread stack using the --main-stacksize= flag.
==77391==  The main thread stack size used in this run was 8388608.

The second issue

Memcheck: mc_leakcheck.c:1128 (void lc_scan_memory(Addr, SizeT, Bool, Int, Int,
Addr, SizeT)): Assertion 'bad_scanned_addr >= VG_ROUNDUP(start, sizeof(Addr))'
failed.

host stacktrace:
==77391==    at 0x258059CD9: ??? (m_libcassert.c:426)
==77391==    by 0x25805A04F: ??? (m_libcassert.c:497)
==77391==    by 0x25805A024: ??? (m_libcassert.c:564)
==77391==    by 0x258003C05: ??? (mc_leakcheck.c:1128)
==77391==    by 0x258003424: ??? (mc_leakcheck.c:2028)
==77391==    by 0x258001CB2: ??? (mc_leakcheck.c:2235)
==77391==    by 0x258017660: ??? (mc_main.c:8493)
==77391==    by 0x25815BE13: ??? (m_main.c:2316)
==77391==    by 0x258127774: ??? (syswrap-darwin.c:246)

My guesss is that fixing the first segfault will make the leak alignment assert
go away.

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